.

Warn for soon to be deprecated OS versions (#3413 )
2025-12-10 20:36:49 +00:00 · 2024-08-06 06:54:27 -07:00 · 2024-08-05 20:00:41 -07:00 · 2024-08-02 14:37:46 -05:00 · 2024-07-26 10:03:59 -05:00 · 2024-07-26 10:36:05 -04:00
158 changed files with 4856 additions and 3513 deletions
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -4,10 +4,13 @@
  "features": {
    "ghcr.io/devcontainers/features/docker-in-docker:1": {},
    "ghcr.io/devcontainers/features/dotnet": {
-			"version": "6.0.412"
+      "version": "8.0.303"
    },
    "ghcr.io/devcontainers/features/node:1": {
      "version": "16"
+    },
+    "ghcr.io/devcontainers/features/sshd:1": {
+      "version": "latest"
    }
  },
  "customizations": {
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -58,29 +58,6 @@ jobs:
        ${{ matrix.devScript }} layout Release ${{ matrix.runtime }}
      working-directory: src

-    # Check runtime/externals hash
-    - name: Compute/Compare runtime and externals Hash
-      shell: bash
-      run: |
-        echo "Current dotnet runtime hash result: $DOTNET_RUNTIME_HASH"
-        echo "Current Externals hash result: $EXTERNALS_HASH"
-
-        NeedUpdate=0
-        if [ "$EXTERNALS_HASH" != "$(cat ./src/Misc/contentHash/externals/${{ matrix.runtime }})" ] ;then
-          echo Hash mismatch, Update ./src/Misc/contentHash/externals/${{ matrix.runtime }} to $EXTERNALS_HASH
-          NeedUpdate=1
-        fi
-
-        if [ "$DOTNET_RUNTIME_HASH" != "$(cat ./src/Misc/contentHash/dotnetRuntime/${{ matrix.runtime }})" ] ;then
-          echo Hash mismatch, Update ./src/Misc/contentHash/dotnetRuntime/${{ matrix.runtime }} to $DOTNET_RUNTIME_HASH
-          NeedUpdate=1
-        fi
-
-        exit $NeedUpdate
-      env:
-        DOTNET_RUNTIME_HASH: ${{hashFiles('**/_layout_trims/runtime/**/*')}}
-        EXTERNALS_HASH: ${{hashFiles('**/_layout_trims/externals/**/*')}}
-
    # Run tests
    - name: L0
      run: |
@@ -103,6 +80,3 @@ jobs:
        name: runner-package-${{ matrix.runtime }}
        path: |
          _package
-          _package_trims/trim_externals
-          _package_trims/trim_runtime
-          _package_trims/trim_runtime_externals
--- a/.github/workflows/close-bugs-bot.yml
+++ b/.github/workflows/close-bugs-bot.yml
@@ -0,0 +1,17 @@
+name: Close Bugs Bot
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 0 * * *' # every day at midnight
+jobs:
+  stale:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/stale@v8
+        with:
+          close-issue-message: "This issue does not seem to be a problem with the runner application, it concerns the GitHub actions platform more generally. Could you please post your feedback on the [GitHub Community Support Forum](https://github.com/orgs/community/discussions/categories/actions) which is actively monitored. Using the forum ensures that we route your problem to the correct team. 😃"
+          exempt-issue-labels: "keep"
+          stale-issue-label: "actions-bug"
+          only-labels: "actions-bug"
+          days-before-stale: 0
+          days-before-close: 1
--- a/.github/workflows/close-features-bot.yml
+++ b/.github/workflows/close-features-bot.yml
@@ -0,0 +1,17 @@
+name: Close Features Bot
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 0 * * *' # every day at midnight
+jobs:
+  stale:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/stale@v8
+        with:
+          close-issue-message: "Thank you for your interest in the runner application and taking the time to provide your valuable feedback. We kindly ask you to redirect this feedback to the [GitHub Community Support Forum](https://github.com/orgs/community/discussions/categories/actions-and-packages) which our team actively monitors and would be a better place to start a discussion for new feature requests in GitHub Actions. For more information on this policy please [read our contribution guidelines](https://github.com/actions/runner#contribute). 😃"
+          exempt-issue-labels: "keep"
+          stale-issue-label: "actions-feature"
+          only-labels: "actions-feature"
+          days-before-stale: 0
+          days-before-close: 1
--- a/.github/workflows/dotnet-upgrade.yml
+++ b/.github/workflows/dotnet-upgrade.yml
@@ -84,221 +84,20 @@ jobs:
          git commit -a -m "Upgrade dotnet sdk to v${{ steps.fetch_latest_version.outputs.DOTNET_LATEST_MAJOR_MINOR_PATCH_VERSION }}"
          git push --set-upstream origin $branch_name

-  build-hashes:
-    if: ${{ needs.dotnet-update.outputs.SHOULD_UPDATE == 1 && needs.dotnet-update.outputs.BRANCH_EXISTS == 0 }}
+  create-pr:
    needs: [dotnet-update]
-    outputs: 
-      # pass outputs from this job to create-pr for use
-      DOTNET_LATEST_MAJOR_MINOR_PATCH_VERSION: ${{ needs.dotnet-update.outputs.DOTNET_LATEST_MAJOR_MINOR_PATCH_VERSION }}
-      DOTNET_CURRENT_MAJOR_MINOR_VERSION: ${{ needs.dotnet-update.outputs.DOTNET_CURRENT_MAJOR_MINOR_VERSION }}
-      NEEDS_HASH_UPDATE: ${{ steps.compute-hash.outputs.NEED_UPDATE }}
-    strategy:
-      fail-fast: false
-      matrix:
-        runtime: [ linux-x64, linux-arm64, linux-arm, win-x64, win-arm64, osx-x64, osx-arm64 ]
-        include:
-        - runtime: linux-x64
-          os: ubuntu-latest
-          devScript: ./dev.sh
-
-        - runtime: linux-arm64
-          os: ubuntu-latest
-          devScript: ./dev.sh
-
-        - runtime: linux-arm
-          os: ubuntu-latest
-          devScript: ./dev.sh
-
-        - runtime: osx-x64
-          os: macOS-latest
-          devScript: ./dev.sh
-
-        - runtime: osx-arm64
-          os: macOS-latest
-          devScript: ./dev.sh
-
-        - runtime: win-x64
-          os: windows-2019
-          devScript: ./dev
-
-        - runtime: win-arm64
-          os: windows-latest
-          devScript: ./dev
-
-    runs-on: ${{ matrix.os }}
+    if: ${{ needs.dotnet-update.outputs.SHOULD_UPDATE == 1 && needs.dotnet-update.outputs.BRANCH_EXISTS == 0 }}
+    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v3
      with:
        ref: feature/dotnetsdk-upgrade/${{ needs.dotnet-update.outputs.DOTNET_LATEST_MAJOR_MINOR_PATCH_VERSION }}
-
-    # Build runner layout
-    - name: Build & Layout Release
-      run: |
-        ${{ matrix.devScript }} layout Release ${{ matrix.runtime }}
-      working-directory: src
-
-    # Check runtime/externals hash
-    - name: Compute/Compare runtime and externals Hash
-      id: compute-hash
-      continue-on-error: true
-      shell: bash
-      run: |
-        echo "Current dotnet runtime hash result: $DOTNET_RUNTIME_HASH"
-        echo "Current Externals hash result: $EXTERNALS_HASH"
-
-        NeedUpdate=0
-        if [ "$EXTERNALS_HASH" != "$(cat ./src/Misc/contentHash/externals/${{ matrix.runtime }})" ] ;then
-          echo Hash mismatch, Update ./src/Misc/contentHash/externals/${{ matrix.runtime }} to $EXTERNALS_HASH
-
-          echo "EXTERNAL_HASH=$EXTERNALS_HASH" >> $GITHUB_OUTPUT
-          NeedUpdate=1
-        fi
-
-        if [ "$DOTNET_RUNTIME_HASH" != "$(cat ./src/Misc/contentHash/dotnetRuntime/${{ matrix.runtime }})" ] ;then
-          echo Hash mismatch, Update ./src/Misc/contentHash/dotnetRuntime/${{ matrix.runtime }} to $DOTNET_RUNTIME_HASH
-
-          echo "DOTNET_RUNTIME_HASH=$DOTNET_RUNTIME_HASH" >> $GITHUB_OUTPUT
-          NeedUpdate=1
-        fi
-
-        echo "NEED_UPDATE=$NeedUpdate" >> $GITHUB_OUTPUT
-      env:
-        DOTNET_RUNTIME_HASH: ${{hashFiles('**/_layout_trims/runtime/**/*')}}
-        EXTERNALS_HASH: ${{hashFiles('**/_layout_trims/externals/**/*')}}
-    - name: update hash
-      if: ${{ steps.compute-hash.outputs.NEED_UPDATE == 1 }}
-      shell: bash
-      run: |
-        ExternalHash=${{ steps.compute-hash.outputs.EXTERNAL_HASH }}
-        DotNetRuntimeHash=${{ steps.compute-hash.outputs.DOTNET_RUNTIME_HASH }}
-
-        if [ -n "$ExternalHash" ]; then
-          echo "$ExternalHash" > ./src/Misc/contentHash/externals/${{ matrix.runtime }}
-        fi
-
-        if [ -n "$DotNetRuntimeHash" ]; then
-          echo "$DotNetRuntimeHash" > ./src/Misc/contentHash/dotnetRuntime/${{ matrix.runtime }}
-        fi
-    - name: cache updated hashes
-      if: ${{ steps.compute-hash.outputs.NEED_UPDATE == 1 }}
-      uses: actions/cache/save@v3
-      with:
-        enableCrossOsArchive: true
-        path: |
-          ./src/Misc/contentHash/externals/${{ matrix.runtime }}
-          ./src/Misc/contentHash/dotnetRuntime/${{ matrix.runtime }}
-        key: compute-hashes-${{ matrix.runtime }}-${{ github.run_id }}-${{ github.run_number }}-${{ github.run_attempt }}
-
-
-  hash-update:
-    needs: [build-hashes]
-    if: ${{ needs.build-hashes.outputs.NEEDS_HASH_UPDATE == 1 }}
-    outputs: 
-      # pass outputs from this job to create-pr for use
-      DOTNET_LATEST_MAJOR_MINOR_PATCH_VERSION: ${{ needs.build-hashes.outputs.DOTNET_LATEST_MAJOR_MINOR_PATCH_VERSION }}
-      DOTNET_CURRENT_MAJOR_MINOR_VERSION: ${{ needs.build-hashes.outputs.DOTNET_CURRENT_MAJOR_MINOR_VERSION }}
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v3
-      with: 
-        ref: feature/dotnetsdk-upgrade/${{ needs.build-hashes.outputs.DOTNET_LATEST_MAJOR_MINOR_PATCH_VERSION }}
-    - name: Restore cached hashes - linux-x64
-      id: cache-restore-linux-x64
-      uses: actions/cache/restore@v3
-      with:
-        enableCrossOsArchive: true
-        path: |
-          ./src/Misc/contentHash/externals/linux-x64
-          ./src/Misc/contentHash/dotnetRuntime/linux-x64
-        key: compute-hashes-linux-x64-${{ github.run_id }}-${{ github.run_number }}-${{ github.run_attempt }}
-    - name: Restore cached hashes - linux-arm64
-      id: cache-restore-linux-arm64
-      uses: actions/cache/restore@v3
-      with:
-        enableCrossOsArchive: true
-        path: |
-          ./src/Misc/contentHash/externals/linux-arm64
-          ./src/Misc/contentHash/dotnetRuntime/linux-arm64
-        key: compute-hashes-linux-arm64-${{ github.run_id }}-${{ github.run_number }}-${{ github.run_attempt }}
-    - name: Restore cached hashes - linux-arm
-      id: cache-restore-linux-arm
-      uses: actions/cache/restore@v3
-      with:
-        enableCrossOsArchive: true
-        path: |
-          ./src/Misc/contentHash/externals/linux-arm
-          ./src/Misc/contentHash/dotnetRuntime/linux-arm
-        key: compute-hashes-linux-arm-${{ github.run_id }}-${{ github.run_number }}-${{ github.run_attempt }}
-    - name: Restore cached hashes - osx-x64
-      id: cache-restore-osx-x64
-      uses: actions/cache/restore@v3
-      with:
-        enableCrossOsArchive: true
-        path: |
-          ./src/Misc/contentHash/externals/osx-x64
-          ./src/Misc/contentHash/dotnetRuntime/osx-x64
-        key: compute-hashes-osx-x64-${{ github.run_id }}-${{ github.run_number }}-${{ github.run_attempt }}
-    - name: Restore cached hashes - osx-arm64
-      id: cache-restore-osx-arm64
-      uses: actions/cache/restore@v3
-      with:
-        enableCrossOsArchive: true
-        path: |
-          ./src/Misc/contentHash/externals/osx-arm64
-          ./src/Misc/contentHash/dotnetRuntime/osx-arm64
-        key: compute-hashes-osx-arm64-${{ github.run_id }}-${{ github.run_number }}-${{ github.run_attempt }}
-    - name: Restore cached hashes - win-x64
-      id: cache-restore-win-x64
-      uses: actions/cache/restore@v3
-      with:
-        enableCrossOsArchive: true
-        path: |
-          ./src/Misc/contentHash/externals/win-x64
-          ./src/Misc/contentHash/dotnetRuntime/win-x64
-        key: compute-hashes-win-x64-${{ github.run_id }}-${{ github.run_number }}-${{ github.run_attempt }}
-    - name: Restore cached hashes - win-arm64
-      id: cache-restore-win-arm64
-      uses: actions/cache/restore@v3
-      with:
-        enableCrossOsArchive: true
-        path: |
-          ./src/Misc/contentHash/externals/win-arm64
-          ./src/Misc/contentHash/dotnetRuntime/win-arm64
-        key: compute-hashes-win-arm64-${{ github.run_id }}-${{ github.run_number }}-${{ github.run_attempt }}
-    - name: Fetch cached computed hashes
-      if: steps.cache-restore-linux-x64.outputs.cache-hit == 'true' ||
-          steps.cache-restore-linux-arm64.outputs.cache-hit == 'true' ||
-          steps.cache-restore-linux-arm.outputs.cache-hit == 'true' ||
-          steps.cache-restore-win-x64.outputs.cache-hit == 'true' ||
-          steps.cache-restore-win-arm64.outputs.cache-hit == 'true' ||
-          steps.cache-restore-osx-x64.outputs.cache-hit == 'true' ||
-          steps.cache-restore-osx-arm64.outputs.cache-hit == 'true'
-      shell: bash
-      run: |
-        Environments=( "linux-x64" "linux-arm64" "linux-arm" "win-x64" "win-arm64" "osx-x64" "osx-arm64" )
-
-        git config --global user.name "github-actions[bot]"
-        git config --global user.email "41898282+github-actions[bot]@users.noreply.github.com"
-        git commit -a -m "Update computed hashes"
-        git push --set-upstream origin feature/dotnetsdk-upgrade/${{ needs.build-hashes.outputs.DOTNET_LATEST_MAJOR_MINOR_PATCH_VERSION }}
-
-  create-pr:
-    needs: [hash-update]
-    outputs:
-      # pass outputs from this job to run-tests for use
-      DOTNET_LATEST_MAJOR_MINOR_PATCH_VERSION: ${{ needs.hash-update.outputs.DOTNET_LATEST_MAJOR_MINOR_PATCH_VERSION }}
-      DOTNET_CURRENT_MAJOR_MINOR_VERSION: ${{ needs.hash-update.outputs.DOTNET_CURRENT_MAJOR_MINOR_VERSION }}
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v3
-      with:
-        ref: feature/dotnetsdk-upgrade/${{ needs.hash-update.outputs.DOTNET_LATEST_MAJOR_MINOR_PATCH_VERSION }}
    - name: Create Pull Request
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      run: |
-        gh pr create -B main -H feature/dotnetsdk-upgrade/${{ needs.hash-update.outputs.DOTNET_LATEST_MAJOR_MINOR_PATCH_VERSION }} --title "Update dotnet sdk to latest version @${{ needs.hash-update.outputs.DOTNET_LATEST_MAJOR_MINOR_PATCH_VERSION }}" --body "
-          https://dotnetcli.blob.core.windows.net/dotnet/Sdk/${{ needs.hash-update.outputs.DOTNET_CURRENT_MAJOR_MINOR_VERSION }}/latest.version
+        gh pr create -B main -H feature/dotnetsdk-upgrade/${{ needs.dotnet-update.outputs.DOTNET_LATEST_MAJOR_MINOR_PATCH_VERSION }} --title "Update dotnet sdk to latest version @${{ needs.dotnet-update.outputs.DOTNET_LATEST_MAJOR_MINOR_PATCH_VERSION }}" --body "
+          https://dotnetcli.blob.core.windows.net/dotnet/Sdk/${{ needs.dotnet-update.outputs.DOTNET_CURRENT_MAJOR_MINOR_VERSION }}/latest.version
          
            
          ---
--- a/.github/workflows/publish-image.yml
+++ b/.github/workflows/publish-image.yml
@@ -25,10 +25,12 @@ jobs:
      - name: Compute image version
        id: image
        uses: actions/github-script@v6
+        env:
+          RUNNER_VERSION: ${{ github.event.inputs.runnerVersion }}
        with:
          script: |
            const fs = require('fs');
-            const inputRunnerVersion = "${{ github.event.inputs.runnerVersion }}"
+            const inputRunnerVersion = process.env.RUNNER_VERSION;
            if (inputRunnerVersion) {
              console.log(`Using input runner version ${inputRunnerVersion}`)
              core.setOutput('version', inputRunnerVersion);
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -53,27 +53,6 @@ jobs:
      win-arm64-sha: ${{ steps.sha.outputs.win-arm64-sha256 }}
      osx-x64-sha: ${{ steps.sha.outputs.osx-x64-sha256 }}
      osx-arm64-sha: ${{ steps.sha.outputs.osx-arm64-sha256 }}
-      linux-x64-sha-noexternals: ${{ steps.sha_noexternals.outputs.linux-x64-sha256 }}
-      linux-arm64-sha-noexternals: ${{ steps.sha_noexternals.outputs.linux-arm64-sha256 }}
-      linux-arm-sha-noexternals: ${{ steps.sha_noexternals.outputs.linux-arm-sha256 }}
-      win-x64-sha-noexternals: ${{ steps.sha_noexternals.outputs.win-x64-sha256 }}
-      win-arm64-sha-noexternals: ${{ steps.sha_noexternals.outputs.win-arm64-sha256 }}
-      osx-x64-sha-noexternals: ${{ steps.sha_noexternals.outputs.osx-x64-sha256 }}
-      osx-arm64-sha-noexternals: ${{ steps.sha_noexternals.outputs.osx-arm64-sha256 }}
-      linux-x64-sha-noruntime: ${{ steps.sha_noruntime.outputs.linux-x64-sha256 }}
-      linux-arm64-sha-noruntime: ${{ steps.sha_noruntime.outputs.linux-arm64-sha256 }}
-      linux-arm-sha-noruntime: ${{ steps.sha_noruntime.outputs.linux-arm-sha256 }}
-      win-x64-sha-noruntime: ${{ steps.sha_noruntime.outputs.win-x64-sha256 }}
-      win-arm64-sha-noruntime: ${{ steps.sha_noruntime.outputs.win-arm64-sha256 }}
-      osx-x64-sha-noruntime: ${{ steps.sha_noruntime.outputs.osx-x64-sha256 }}
-      osx-arm64-sha-noruntime: ${{ steps.sha_noruntime.outputs.osx-arm64-sha256 }}
-      linux-x64-sha-noruntime-noexternals: ${{ steps.sha_noruntime_noexternals.outputs.linux-x64-sha256 }}
-      linux-arm64-sha-noruntime-noexternals: ${{ steps.sha_noruntime_noexternals.outputs.linux-arm64-sha256 }}
-      linux-arm-sha-noruntime-noexternals: ${{ steps.sha_noruntime_noexternals.outputs.linux-arm-sha256 }}
-      win-x64-sha-noruntime-noexternals: ${{ steps.sha_noruntime_noexternals.outputs.win-x64-sha256 }}
-      win-arm64-sha-noruntime-noexternals: ${{ steps.sha_noruntime_noexternals.outputs.win-arm64-sha256 }}
-      osx-x64-sha-noruntime-noexternals: ${{ steps.sha_noruntime_noexternals.outputs.osx-x64-sha256 }}
-      osx-arm64-sha-noruntime-noexternals: ${{ steps.sha_noruntime_noexternals.outputs.osx-arm64-sha256 }}
    strategy:
      matrix:
        runtime: [ linux-x64, linux-arm64, linux-arm, win-x64, osx-x64, osx-arm64, win-arm64 ]
@@ -136,76 +115,6 @@ jobs:
      id: sha
      name: Compute SHA256
      working-directory: _package
-    - run: |
-        file=$(ls)
-        sha=$(sha256sum $file | awk '{ print $1 }')
-        echo "Computed sha256: $sha for $file"
-        echo "${{matrix.runtime}}-sha256=$sha" >> $GITHUB_OUTPUT
-        echo "sha256=$sha" >> $GITHUB_OUTPUT
-      shell: bash
-      id: sha_noexternals
-      name: Compute SHA256
-      working-directory: _package_trims/trim_externals
-    - run: |
-        file=$(ls)
-        sha=$(sha256sum $file | awk '{ print $1 }')
-        echo "Computed sha256: $sha for $file"
-        echo "${{matrix.runtime}}-sha256=$sha" >> $GITHUB_OUTPUT
-        echo "sha256=$sha" >> $GITHUB_OUTPUT
-      shell: bash
-      id: sha_noruntime
-      name: Compute SHA256
-      working-directory: _package_trims/trim_runtime
-    - run: |
-        file=$(ls)
-        sha=$(sha256sum $file | awk '{ print $1 }')
-        echo "Computed sha256: $sha for $file"
-        echo "${{matrix.runtime}}-sha256=$sha" >> $GITHUB_OUTPUT
-        echo "sha256=$sha" >> $GITHUB_OUTPUT
-      shell: bash
-      id: sha_noruntime_noexternals
-      name: Compute SHA256
-      working-directory: _package_trims/trim_runtime_externals
-
-    - name: Create trimmedpackages.json for ${{ matrix.runtime }}
-      if: matrix.runtime == 'win-x64' || matrix.runtime == 'win-arm64'
-      uses: actions/github-script@0.3.0
-      with:
-        github-token: ${{secrets.GITHUB_TOKEN}}
-        script: |
-          const core = require('@actions/core')
-          const fs = require('fs');
-          const runnerVersion = fs.readFileSync('src/runnerversion', 'utf8').replace(/\n$/g, '')
-          var trimmedPackages = fs.readFileSync('src/Misc/trimmedpackages_zip.json', 'utf8').replace(/<RUNNER_VERSION>/g, runnerVersion).replace(/<RUNNER_PLATFORM>/g, '${{ matrix.runtime }}')
-          trimmedPackages = trimmedPackages.replace(/<RUNTIME_HASH>/g, '${{hashFiles('**/_layout_trims/runtime/**/*')}}')
-          trimmedPackages = trimmedPackages.replace(/<EXTERNALS_HASH>/g, '${{hashFiles('**/_layout_trims/externals/**/*')}}')
-
-          trimmedPackages = trimmedPackages.replace(/<NO_RUNTIME_EXTERNALS_HASH>/g, '${{steps.sha_noruntime_noexternals.outputs.sha256}}')
-          trimmedPackages = trimmedPackages.replace(/<NO_RUNTIME_HASH>/g, '${{steps.sha_noruntime.outputs.sha256}}')
-          trimmedPackages = trimmedPackages.replace(/<NO_EXTERNALS_HASH>/g, '${{steps.sha_noexternals.outputs.sha256}}')
-
-          console.log(trimmedPackages)
-          fs.writeFileSync('${{ matrix.runtime }}-trimmedpackages.json', trimmedPackages)
-
-    - name: Create trimmedpackages.json for ${{ matrix.runtime }}
-      if: matrix.runtime != 'win-x64' && matrix.runtime != 'win-arm64'
-      uses: actions/github-script@0.3.0
-      with:
-        github-token: ${{secrets.GITHUB_TOKEN}}
-        script: |
-          const core = require('@actions/core')
-          const fs = require('fs');
-          const runnerVersion = fs.readFileSync('src/runnerversion', 'utf8').replace(/\n$/g, '')
-          var trimmedPackages = fs.readFileSync('src/Misc/trimmedpackages_targz.json', 'utf8').replace(/<RUNNER_VERSION>/g, runnerVersion).replace(/<RUNNER_PLATFORM>/g, '${{ matrix.runtime }}')
-          trimmedPackages = trimmedPackages.replace(/<RUNTIME_HASH>/g, '${{hashFiles('**/_layout_trims/runtime/**/*')}}')
-          trimmedPackages = trimmedPackages.replace(/<EXTERNALS_HASH>/g, '${{hashFiles('**/_layout_trims/externals/**/*')}}')
-
-          trimmedPackages = trimmedPackages.replace(/<NO_RUNTIME_EXTERNALS_HASH>/g, '${{steps.sha_noruntime_noexternals.outputs.sha256}}')
-          trimmedPackages = trimmedPackages.replace(/<NO_RUNTIME_HASH>/g, '${{steps.sha_noruntime.outputs.sha256}}')
-          trimmedPackages = trimmedPackages.replace(/<NO_EXTERNALS_HASH>/g, '${{steps.sha_noexternals.outputs.sha256}}')
-
-          console.log(trimmedPackages)
-          fs.writeFileSync('${{ matrix.runtime }}-trimmedpackages.json', trimmedPackages)

    # Upload runner package tar.gz/zip as artifact.
    # Since each package name is unique, so we don't need to put ${{matrix}} info into artifact name
@@ -216,10 +125,6 @@ jobs:
        name: runner-packages
        path: |
          _package
-          _package_trims/trim_externals
-          _package_trims/trim_runtime
-          _package_trims/trim_runtime_externals
-          ${{ matrix.runtime }}-trimmedpackages.json

  release:
    needs: build
@@ -253,33 +158,11 @@ jobs:
          releaseNote = releaseNote.replace(/<LINUX_X64_SHA>/g, '${{needs.build.outputs.linux-x64-sha}}')
          releaseNote = releaseNote.replace(/<LINUX_ARM_SHA>/g, '${{needs.build.outputs.linux-arm-sha}}')
          releaseNote = releaseNote.replace(/<LINUX_ARM64_SHA>/g, '${{needs.build.outputs.linux-arm64-sha}}')
-          releaseNote = releaseNote.replace(/<WIN_X64_SHA_NOEXTERNALS>/g, '${{needs.build.outputs.win-x64-sha-noexternals}}')
-          releaseNote = releaseNote.replace(/<WIN_ARM64_SHA_NOEXTERNALS>/g, '${{needs.build.outputs.win-arm64-sha-noexternals}}')
-          releaseNote = releaseNote.replace(/<OSX_X64_SHA_NOEXTERNALS>/g, '${{needs.build.outputs.osx-x64-sha-noexternals}}')
-          releaseNote = releaseNote.replace(/<OSX_ARM64_SHA_NOEXTERNALS>/g, '${{needs.build.outputs.osx-arm64-sha-noexternals}}')
-          releaseNote = releaseNote.replace(/<LINUX_X64_SHA_NOEXTERNALS>/g, '${{needs.build.outputs.linux-x64-sha-noexternals}}')
-          releaseNote = releaseNote.replace(/<LINUX_ARM_SHA_NOEXTERNALS>/g, '${{needs.build.outputs.linux-arm-sha-noexternals}}')
-          releaseNote = releaseNote.replace(/<LINUX_ARM64_SHA_NOEXTERNALS>/g, '${{needs.build.outputs.linux-arm64-sha-noexternals}}')
-          releaseNote = releaseNote.replace(/<WIN_X64_SHA_NORUNTIME>/g, '${{needs.build.outputs.win-x64-sha-noruntime}}')
-          releaseNote = releaseNote.replace(/<WIN_ARM64_SHA_NORUNTIME>/g, '${{needs.build.outputs.win-arm64-sha-noruntime}}')
-          releaseNote = releaseNote.replace(/<OSX_X64_SHA_NORUNTIME>/g, '${{needs.build.outputs.osx-x64-sha-noruntime}}')
-          releaseNote = releaseNote.replace(/<OSX_ARM64_SHA_NORUNTIME>/g, '${{needs.build.outputs.osx-arm64-sha-noruntime}}')
-          releaseNote = releaseNote.replace(/<LINUX_X64_SHA_NORUNTIME>/g, '${{needs.build.outputs.linux-x64-sha-noruntime}}')
-          releaseNote = releaseNote.replace(/<LINUX_ARM_SHA_NORUNTIME>/g, '${{needs.build.outputs.linux-arm-sha-noruntime}}')
-          releaseNote = releaseNote.replace(/<LINUX_ARM64_SHA_NORUNTIME>/g, '${{needs.build.outputs.linux-arm64-sha-noruntime}}')
-          releaseNote = releaseNote.replace(/<WIN_X64_SHA_NORUNTIME_NOEXTERNALS>/g, '${{needs.build.outputs.win-x64-sha-noruntime-noexternals}}')
-          releaseNote = releaseNote.replace(/<WIN_ARM64_SHA_NORUNTIME_NOEXTERNALS>/g, '${{needs.build.outputs.win-arm64-sha-noruntime-noexternals}}')
-          releaseNote = releaseNote.replace(/<OSX_X64_SHA_NORUNTIME_NOEXTERNALS>/g, '${{needs.build.outputs.osx-x64-sha-noruntime-noexternals}}')
-          releaseNote = releaseNote.replace(/<OSX_ARM64_SHA_NORUNTIME_NOEXTERNALS>/g, '${{needs.build.outputs.osx-arm64-sha-noruntime-noexternals}}')
-          releaseNote = releaseNote.replace(/<LINUX_X64_SHA_NORUNTIME_NOEXTERNALS>/g, '${{needs.build.outputs.linux-x64-sha-noruntime-noexternals}}')
-          releaseNote = releaseNote.replace(/<LINUX_ARM_SHA_NORUNTIME_NOEXTERNALS>/g, '${{needs.build.outputs.linux-arm-sha-noruntime-noexternals}}')
-          releaseNote = releaseNote.replace(/<LINUX_ARM64_SHA_NORUNTIME_NOEXTERNALS>/g, '${{needs.build.outputs.linux-arm64-sha-noruntime-noexternals}}')
          console.log(releaseNote)
          core.setOutput('version', runnerVersion);
          core.setOutput('note', releaseNote);

    - name: Validate Packages HASH
-      working-directory: _package
      run: |
        ls -l
        echo "${{needs.build.outputs.win-x64-sha}}  actions-runner-win-x64-${{ steps.releaseNote.outputs.version }}.zip" | shasum -a 256 -c
@@ -309,7 +192,7 @@ jobs:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      with:
        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/_package/actions-runner-win-x64-${{ steps.releaseNote.outputs.version }}.zip
+        asset_path: ${{ github.workspace }}/actions-runner-win-x64-${{ steps.releaseNote.outputs.version }}.zip
        asset_name: actions-runner-win-x64-${{ steps.releaseNote.outputs.version }}.zip
        asset_content_type: application/octet-stream

@@ -319,7 +202,7 @@ jobs:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      with:
        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/_package/actions-runner-win-arm64-${{ steps.releaseNote.outputs.version }}.zip
+        asset_path: ${{ github.workspace }}/actions-runner-win-arm64-${{ steps.releaseNote.outputs.version }}.zip
        asset_name: actions-runner-win-arm64-${{ steps.releaseNote.outputs.version }}.zip
        asset_content_type: application/octet-stream

@@ -329,7 +212,7 @@ jobs:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      with:
        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/_package/actions-runner-linux-x64-${{ steps.releaseNote.outputs.version }}.tar.gz
+        asset_path: ${{ github.workspace }}/actions-runner-linux-x64-${{ steps.releaseNote.outputs.version }}.tar.gz
        asset_name: actions-runner-linux-x64-${{ steps.releaseNote.outputs.version }}.tar.gz
        asset_content_type: application/octet-stream

@@ -339,7 +222,7 @@ jobs:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      with:
        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/_package/actions-runner-osx-x64-${{ steps.releaseNote.outputs.version }}.tar.gz
+        asset_path: ${{ github.workspace }}/actions-runner-osx-x64-${{ steps.releaseNote.outputs.version }}.tar.gz
        asset_name: actions-runner-osx-x64-${{ steps.releaseNote.outputs.version }}.tar.gz
        asset_content_type: application/octet-stream

@@ -349,7 +232,7 @@ jobs:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      with:
        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/_package/actions-runner-osx-arm64-${{ steps.releaseNote.outputs.version }}.tar.gz
+        asset_path: ${{ github.workspace }}/actions-runner-osx-arm64-${{ steps.releaseNote.outputs.version }}.tar.gz
        asset_name: actions-runner-osx-arm64-${{ steps.releaseNote.outputs.version }}.tar.gz
        asset_content_type: application/octet-stream

@@ -359,7 +242,7 @@ jobs:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      with:
        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/_package/actions-runner-linux-arm-${{ steps.releaseNote.outputs.version }}.tar.gz
+        asset_path: ${{ github.workspace }}/actions-runner-linux-arm-${{ steps.releaseNote.outputs.version }}.tar.gz
        asset_name: actions-runner-linux-arm-${{ steps.releaseNote.outputs.version }}.tar.gz
        asset_content_type: application/octet-stream

@@ -369,298 +252,10 @@ jobs:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      with:
        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/_package/actions-runner-linux-arm64-${{ steps.releaseNote.outputs.version }}.tar.gz
+        asset_path: ${{ github.workspace }}/actions-runner-linux-arm64-${{ steps.releaseNote.outputs.version }}.tar.gz
        asset_name: actions-runner-linux-arm64-${{ steps.releaseNote.outputs.version }}.tar.gz
        asset_content_type: application/octet-stream

-    # Upload release assets (trim externals)
-    - name: Upload Release Asset (win-x64-noexternals)
-      uses: actions/upload-release-asset@v1.0.1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/_package_trims/trim_externals/actions-runner-win-x64-${{ steps.releaseNote.outputs.version }}-noexternals.zip
-        asset_name: actions-runner-win-x64-${{ steps.releaseNote.outputs.version }}-noexternals.zip
-        asset_content_type: application/octet-stream
-
-    # Upload release assets (trim externals)
-    - name: Upload Release Asset (win-arm64-noexternals)
-      uses: actions/upload-release-asset@v1.0.1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/_package_trims/trim_externals/actions-runner-win-arm64-${{ steps.releaseNote.outputs.version }}-noexternals.zip
-        asset_name: actions-runner-win-arm64-${{ steps.releaseNote.outputs.version }}-noexternals.zip
-        asset_content_type: application/octet-stream
-
-    - name: Upload Release Asset (linux-x64-noexternals)
-      uses: actions/upload-release-asset@v1.0.1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/_package_trims/trim_externals/actions-runner-linux-x64-${{ steps.releaseNote.outputs.version }}-noexternals.tar.gz
-        asset_name: actions-runner-linux-x64-${{ steps.releaseNote.outputs.version }}-noexternals.tar.gz
-        asset_content_type: application/octet-stream
-
-    - name: Upload Release Asset (osx-x64-noexternals)
-      uses: actions/upload-release-asset@v1.0.1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/_package_trims/trim_externals/actions-runner-osx-x64-${{ steps.releaseNote.outputs.version }}-noexternals.tar.gz
-        asset_name: actions-runner-osx-x64-${{ steps.releaseNote.outputs.version }}-noexternals.tar.gz
-        asset_content_type: application/octet-stream
-
-    - name: Upload Release Asset (osx-arm64-noexternals)
-      uses: actions/upload-release-asset@v1.0.1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/_package_trims/trim_externals/actions-runner-osx-arm64-${{ steps.releaseNote.outputs.version }}-noexternals.tar.gz
-        asset_name: actions-runner-osx-arm64-${{ steps.releaseNote.outputs.version }}-noexternals.tar.gz
-        asset_content_type: application/octet-stream
-
-    - name: Upload Release Asset (linux-arm-noexternals)
-      uses: actions/upload-release-asset@v1.0.1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/_package_trims/trim_externals/actions-runner-linux-arm-${{ steps.releaseNote.outputs.version }}-noexternals.tar.gz
-        asset_name: actions-runner-linux-arm-${{ steps.releaseNote.outputs.version }}-noexternals.tar.gz
-        asset_content_type: application/octet-stream
-
-    - name: Upload Release Asset (linux-arm64-noexternals)
-      uses: actions/upload-release-asset@v1.0.1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/_package_trims/trim_externals/actions-runner-linux-arm64-${{ steps.releaseNote.outputs.version }}-noexternals.tar.gz
-        asset_name: actions-runner-linux-arm64-${{ steps.releaseNote.outputs.version }}-noexternals.tar.gz
-        asset_content_type: application/octet-stream
-
-    # Upload release assets (trim runtime)
-    - name: Upload Release Asset (win-x64-noruntime)
-      uses: actions/upload-release-asset@v1.0.1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/_package_trims/trim_runtime/actions-runner-win-x64-${{ steps.releaseNote.outputs.version }}-noruntime.zip
-        asset_name: actions-runner-win-x64-${{ steps.releaseNote.outputs.version }}-noruntime.zip
-        asset_content_type: application/octet-stream
-
-    # Upload release assets (trim runtime)
-    - name: Upload Release Asset (win-arm64-noruntime)
-      uses: actions/upload-release-asset@v1.0.1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/_package_trims/trim_runtime/actions-runner-win-arm64-${{ steps.releaseNote.outputs.version }}-noruntime.zip
-        asset_name: actions-runner-win-arm64-${{ steps.releaseNote.outputs.version }}-noruntime.zip
-        asset_content_type: application/octet-stream
-
-    - name: Upload Release Asset (linux-x64-noruntime)
-      uses: actions/upload-release-asset@v1.0.1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/_package_trims/trim_runtime/actions-runner-linux-x64-${{ steps.releaseNote.outputs.version }}-noruntime.tar.gz
-        asset_name: actions-runner-linux-x64-${{ steps.releaseNote.outputs.version }}-noruntime.tar.gz
-        asset_content_type: application/octet-stream
-
-    - name: Upload Release Asset (osx-x64-noruntime)
-      uses: actions/upload-release-asset@v1.0.1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/_package_trims/trim_runtime/actions-runner-osx-x64-${{ steps.releaseNote.outputs.version }}-noruntime.tar.gz
-        asset_name: actions-runner-osx-x64-${{ steps.releaseNote.outputs.version }}-noruntime.tar.gz
-        asset_content_type: application/octet-stream
-
-    - name: Upload Release Asset (osx-arm64-noruntime)
-      uses: actions/upload-release-asset@v1.0.1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/_package_trims/trim_runtime/actions-runner-osx-arm64-${{ steps.releaseNote.outputs.version }}-noruntime.tar.gz
-        asset_name: actions-runner-osx-arm64-${{ steps.releaseNote.outputs.version }}-noruntime.tar.gz
-        asset_content_type: application/octet-stream
-
-    - name: Upload Release Asset (linux-arm-noruntime)
-      uses: actions/upload-release-asset@v1.0.1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/_package_trims/trim_runtime/actions-runner-linux-arm-${{ steps.releaseNote.outputs.version }}-noruntime.tar.gz
-        asset_name: actions-runner-linux-arm-${{ steps.releaseNote.outputs.version }}-noruntime.tar.gz
-        asset_content_type: application/octet-stream
-
-    - name: Upload Release Asset (linux-arm64-noruntime)
-      uses: actions/upload-release-asset@v1.0.1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/_package_trims/trim_runtime/actions-runner-linux-arm64-${{ steps.releaseNote.outputs.version }}-noruntime.tar.gz
-        asset_name: actions-runner-linux-arm64-${{ steps.releaseNote.outputs.version }}-noruntime.tar.gz
-        asset_content_type: application/octet-stream
-
-    # Upload release assets (trim runtime and externals)
-    - name: Upload Release Asset (win-x64-noruntime-noexternals)
-      uses: actions/upload-release-asset@v1.0.1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/_package_trims/trim_runtime_externals/actions-runner-win-x64-${{ steps.releaseNote.outputs.version }}-noruntime-noexternals.zip
-        asset_name: actions-runner-win-x64-${{ steps.releaseNote.outputs.version }}-noruntime-noexternals.zip
-        asset_content_type: application/octet-stream
-
-    # Upload release assets (trim runtime and externals)
-    - name: Upload Release Asset (win-arm64-noruntime-noexternals)
-      uses: actions/upload-release-asset@v1.0.1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/_package_trims/trim_runtime_externals/actions-runner-win-arm64-${{ steps.releaseNote.outputs.version }}-noruntime-noexternals.zip
-        asset_name: actions-runner-win-arm64-${{ steps.releaseNote.outputs.version }}-noruntime-noexternals.zip
-        asset_content_type: application/octet-stream
-
-    - name: Upload Release Asset (linux-x64-noruntime-noexternals)
-      uses: actions/upload-release-asset@v1.0.1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/_package_trims/trim_runtime_externals/actions-runner-linux-x64-${{ steps.releaseNote.outputs.version }}-noruntime-noexternals.tar.gz
-        asset_name: actions-runner-linux-x64-${{ steps.releaseNote.outputs.version }}-noruntime-noexternals.tar.gz
-        asset_content_type: application/octet-stream
-
-    - name: Upload Release Asset (osx-x64-noruntime-noexternals)
-      uses: actions/upload-release-asset@v1.0.1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/_package_trims/trim_runtime_externals/actions-runner-osx-x64-${{ steps.releaseNote.outputs.version }}-noruntime-noexternals.tar.gz
-        asset_name: actions-runner-osx-x64-${{ steps.releaseNote.outputs.version }}-noruntime-noexternals.tar.gz
-        asset_content_type: application/octet-stream
-
-    - name: Upload Release Asset (osx-arm64-noruntime-noexternals)
-      uses: actions/upload-release-asset@v1.0.1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/_package_trims/trim_runtime_externals/actions-runner-osx-arm64-${{ steps.releaseNote.outputs.version }}-noruntime-noexternals.tar.gz
-        asset_name: actions-runner-osx-arm64-${{ steps.releaseNote.outputs.version }}-noruntime-noexternals.tar.gz
-        asset_content_type: application/octet-stream
-
-    - name: Upload Release Asset (linux-arm-noruntime-noexternals)
-      uses: actions/upload-release-asset@v1.0.1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/_package_trims/trim_runtime_externals/actions-runner-linux-arm-${{ steps.releaseNote.outputs.version }}-noruntime-noexternals.tar.gz
-        asset_name: actions-runner-linux-arm-${{ steps.releaseNote.outputs.version }}-noruntime-noexternals.tar.gz
-        asset_content_type: application/octet-stream
-
-    - name: Upload Release Asset (linux-arm64-noruntime-noexternals)
-      uses: actions/upload-release-asset@v1.0.1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/_package_trims/trim_runtime_externals/actions-runner-linux-arm64-${{ steps.releaseNote.outputs.version }}-noruntime-noexternals.tar.gz
-        asset_name: actions-runner-linux-arm64-${{ steps.releaseNote.outputs.version }}-noruntime-noexternals.tar.gz
-        asset_content_type: application/octet-stream
-
-    # Upload release assets (trimmedpackages.json)
-    - name: Upload Release Asset (win-x64-trimmedpackages.json)
-      uses: actions/upload-release-asset@v1.0.1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/win-x64-trimmedpackages.json
-        asset_name: actions-runner-win-x64-${{ steps.releaseNote.outputs.version }}-trimmedpackages.json
-        asset_content_type: application/octet-stream
-
-    # Upload release assets (trimmedpackages.json)
-    - name: Upload Release Asset (win-arm64-trimmedpackages.json)
-      uses: actions/upload-release-asset@v1.0.1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/win-arm64-trimmedpackages.json
-        asset_name: actions-runner-win-arm64-${{ steps.releaseNote.outputs.version }}-trimmedpackages.json
-        asset_content_type: application/octet-stream
-
-    - name: Upload Release Asset (linux-x64-trimmedpackages.json)
-      uses: actions/upload-release-asset@v1.0.1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/linux-x64-trimmedpackages.json
-        asset_name: actions-runner-linux-x64-${{ steps.releaseNote.outputs.version }}-trimmedpackages.json
-        asset_content_type: application/octet-stream
-
-    - name: Upload Release Asset (osx-x64-trimmedpackages.json)
-      uses: actions/upload-release-asset@v1.0.1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/osx-x64-trimmedpackages.json
-        asset_name: actions-runner-osx-x64-${{ steps.releaseNote.outputs.version }}-trimmedpackages.json
-        asset_content_type: application/octet-stream
-
-    - name: Upload Release Asset (osx-arm64-trimmedpackages.json)
-      uses: actions/upload-release-asset@v1.0.1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/osx-arm64-trimmedpackages.json
-        asset_name: actions-runner-osx-arm64-${{ steps.releaseNote.outputs.version }}-trimmedpackages.json
-        asset_content_type: application/octet-stream
-
-    - name: Upload Release Asset (linux-arm-trimmedpackages.json)
-      uses: actions/upload-release-asset@v1.0.1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/linux-arm-trimmedpackages.json
-        asset_name: actions-runner-linux-arm-${{ steps.releaseNote.outputs.version }}-trimmedpackages.json
-        asset_content_type: application/octet-stream
-
-    - name: Upload Release Asset (linux-arm64-trimmedpackages.json)
-      uses: actions/upload-release-asset@v1.0.1
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      with:
-        upload_url: ${{ steps.createRelease.outputs.upload_url }}
-        asset_path: ${{ github.workspace }}/linux-arm64-trimmedpackages.json
-        asset_name: actions-runner-linux-arm64-${{ steps.releaseNote.outputs.version }}-trimmedpackages.json
-        asset_content_type: application/octet-stream
-
  publish-image:
    needs: release
    runs-on: ubuntu-latest
--- a/.github/workflows/stale-bot.yml
+++ b/.github/workflows/stale-bot.yml
@@ -1,4 +1,4 @@
-name: ‘Close stale Runner issues’
+name: Stale Bot
 on:
  workflow_dispatch:
  schedule:
@@ -9,9 +9,8 @@ jobs:
    steps:
      - uses: actions/stale@v8
        with:
-          stale-issue-message: ‘This issue is stale because it has been open 365 days with no activity. Remove stale label or comment or this will be closed in 15 days.’
-          close-issue-message: ‘This issue was closed because it has been stalled for 15 days with no activity.’
-          exempt-issue-labels: ‘keep’
+          stale-issue-message: "This issue is stale because it has been open 365 days with no activity. Remove stale label or comment or this will be closed in 15 days."
+          close-issue-message: "This issue was closed because it has been stalled for 15 days with no activity."
+          exempt-issue-labels: "keep"
          days-before-stale: 365
          days-before-close: 15
-          debug-only: true
--- a/.gitignore
+++ b/.gitignore
@@ -26,4 +26,5 @@ _dotnetsdk
 TestResults
 TestLogs
 .DS_Store
+.mono
 **/*.DotSettings.user
--- a/docs/checks/actions.md
+++ b/docs/checks/actions.md
@@ -7,21 +7,26 @@ Make sure the runner has access to actions service for GitHub.com or GitHub Ente

 - For GitHub.com
  - The runner needs to access `https://api.github.com` for downloading actions.
+  - The runner needs to access `https://codeload.github.com` for downloading actions tar.gz/zip.
  - The runner needs to access `https://vstoken.actions.githubusercontent.com/_apis/.../` for requesting an access token.
  - The runner needs to access `https://pipelines.actions.githubusercontent.com/_apis/.../` for receiving workflow jobs.
+  - The runner needs to access `https://results-receiver.actions.githubusercontent.com/.../` for reporting progress and uploading logs during a workflow job execution.
  ---
  **NOTE:** for the full list of domains that are required to be in the firewall allow list refer to the [GitHub self-hosted runners requirements documentation](https://docs.github.com/en/actions/hosting-your-own-runners/managing-self-hosted-runners/about-self-hosted-runners#communication-between-self-hosted-runners-and-github).

  These can by tested by running the following `curl` commands from your self-hosted runner machine:

    ```
-    curl -v https://api.github.com/api/v3/zen
+    curl -v https://api.github.com/zen
+    curl -v https://codeload.github.com/_ping
    curl -v https://vstoken.actions.githubusercontent.com/_apis/health
    curl -v https://pipelines.actions.githubusercontent.com/_apis/health
+    curl -v https://results-receiver.actions.githubusercontent.com/health
    ```

 - For GitHub Enterprise Server
  - The runner needs to access `https://[hostname]/api/v3` for downloading actions.
+  - The runner needs to access `https://codeload.[hostname]/_ping` for downloading actions tar.gz/zip.
  - The runner needs to access `https://[hostname]/_services/vstoken/_apis/.../` for requesting an access token.
  - The runner needs to access `https://[hostname]/_services/pipelines/_apis/.../` for receiving workflow jobs.
  
@@ -29,6 +34,7 @@ Make sure the runner has access to actions service for GitHub.com or GitHub Ente

    ```
    curl -v https://[hostname]/api/v3/zen
+    curl -v https://codeload.[hostname]/_ping
    curl -v https://[hostname]/_services/vstoken/_apis/health
    curl -v https://[hostname]/_services/pipelines/_apis/health
    ```
@@ -44,6 +50,10 @@ Make sure the runner has access to actions service for GitHub.com or GitHub Ente
 - Ping api.github.com or myGHES.com using dotnet
 - Make HTTP GET to https://api.github.com or https://myGHES.com/api/v3 using dotnet, check response headers contains `X-GitHub-Request-Id`
 ---
+- DNS lookup for codeload.github.com or codeload.myGHES.com using dotnet
+- Ping codeload.github.com or codeload.myGHES.com using dotnet
+- Make HTTP GET to https://codeload.github.com/_ping or https://codeload.myGHES.com/_ping using dotnet, check response headers contains `X-GitHub-Request-Id`
+---
 - DNS lookup for vstoken.actions.githubusercontent.com using dotnet
 - Ping vstoken.actions.githubusercontent.com using dotnet
 - Make HTTP GET to https://vstoken.actions.githubusercontent.com/_apis/health or https://myGHES.com/_services/vstoken/_apis/health using dotnet, check response headers contains `x-vss-e2eid`
@@ -52,6 +62,10 @@ Make sure the runner has access to actions service for GitHub.com or GitHub Ente
 - Ping pipelines.actions.githubusercontent.com using dotnet
 - Make HTTP GET to https://pipelines.actions.githubusercontent.com/_apis/health or https://myGHES.com/_services/pipelines/_apis/health using dotnet, check response headers contains `x-vss-e2eid`
 - Make HTTP POST to https://pipelines.actions.githubusercontent.com/_apis/health or https://myGHES.com/_services/pipelines/_apis/health using dotnet, check response headers contains `x-vss-e2eid`
+---
+- DNS lookup for results-receiver.actions.githubusercontent.com using dotnet
+- Ping results-receiver.actions.githubusercontent.com using dotnet
+- Make HTTP GET to https://results-receiver.actions.githubusercontent.com/health using dotnet, check response headers contains `X-GitHub-Request-Id`

 ## How to fix the issue?

--- a/docs/checks/network.md
+++ b/docs/checks/network.md
@@ -42,6 +42,7 @@ If you are having trouble connecting, try these steps:
      - https://api.github.com/
      - https://vstoken.actions.githubusercontent.com/_apis/health
      - https://pipelines.actions.githubusercontent.com/_apis/health
+      - https://results-receiver.actions.githubusercontent.com/health
    - For GHES/GHAE
      - https://myGHES.com/_services/vstoken/_apis/health
      - https://myGHES.com/_services/pipelines/_apis/health
--- a/docs/start/envlinux.md
+++ b/docs/start/envlinux.md
@@ -4,16 +4,7 @@

 ## Supported Distributions and Versions

-x64
-  - Red Hat Enterprise Linux 7
-  - CentOS 7
-  - Oracle Linux 7
-  - Fedora 29+
-  - Debian 9+
-  - Ubuntu 16.04+
-  - Linux Mint 18+
-  - openSUSE 15+
-  - SUSE Enterprise Linux (SLES) 12 SP2+
+Please see "[Supported architectures and operating systems for self-hosted runners](https://docs.github.com/en/actions/hosting-your-own-runners/managing-self-hosted-runners/about-self-hosted-runners#linux)."

 ## Install .Net Core 3.x Linux Dependencies

--- a/docs/start/envosx.md
+++ b/docs/start/envosx.md
@@ -4,7 +4,6 @@

 ## Supported Versions

-  - macOS High Sierra (10.13) and later versions
-  - x64 and arm64 (Apple Silicon)
+Please see "[Supported architectures and operating systems for self-hosted runners](https://docs.github.com/en/actions/hosting-your-own-runners/managing-self-hosted-runners/about-self-hosted-runners#macos)."

 ## [More .Net Core Prerequisites Information](https://docs.microsoft.com/en-us/dotnet/core/macos-prerequisites?tabs=netcore30)
--- a/docs/start/envwin.md
+++ b/docs/start/envwin.md
@@ -2,11 +2,6 @@

 ## Supported Versions

- - Windows 7 64-bit
- - Windows 8.1 64-bit
- - Windows 10 64-bit
- - Windows Server 2012 R2 64-bit
- - Windows Server 2016 64-bit
- - Windows Server 2019 64-bit
+Please see "[Supported architectures and operating systems for self-hosted runners](https://docs.github.com/en/actions/hosting-your-own-runners/managing-self-hosted-runners/about-self-hosted-runners#windows)."

 ## [More .NET Core Prerequisites Information](https://docs.microsoft.com/en-us/dotnet/core/windows-prerequisites?tabs=netcore30)
--- a/images/Dockerfile
+++ b/images/Dockerfile
@@ -4,8 +4,9 @@ FROM mcr.microsoft.com/dotnet/runtime-deps:6.0-jammy as build
 ARG TARGETOS
 ARG TARGETARCH
 ARG RUNNER_VERSION
-ARG RUNNER_CONTAINER_HOOKS_VERSION=0.3.2
-ARG DOCKER_VERSION=23.0.6
+ARG RUNNER_CONTAINER_HOOKS_VERSION=0.6.1
+ARG DOCKER_VERSION=27.1.1
+ARG BUILDX_VERSION=0.16.2

 RUN apt update -y && apt install curl unzip -y

@@ -25,20 +26,28 @@ RUN export RUNNER_ARCH=${TARGETARCH} \
    && if [ "$RUNNER_ARCH" = "arm64" ]; then export DOCKER_ARCH=aarch64 ; fi \
    && curl -fLo docker.tgz https://download.docker.com/${TARGETOS}/static/stable/${DOCKER_ARCH}/docker-${DOCKER_VERSION}.tgz \
    && tar zxvf docker.tgz \
-    && rm -rf docker.tgz
+    && rm -rf docker.tgz \
+    && mkdir -p /usr/local/lib/docker/cli-plugins \
+    && curl -fLo /usr/local/lib/docker/cli-plugins/docker-buildx \
+        "https://github.com/docker/buildx/releases/download/v${BUILDX_VERSION}/buildx-v${BUILDX_VERSION}.linux-${TARGETARCH}" \
+    && chmod +x /usr/local/lib/docker/cli-plugins/docker-buildx

 FROM mcr.microsoft.com/dotnet/runtime-deps:6.0-jammy

 ENV DEBIAN_FRONTEND=noninteractive
 ENV RUNNER_MANUALLY_TRAP_SIG=1
 ENV ACTIONS_RUNNER_PRINT_LOG_TO_STDOUT=1
+ENV ImageOS=ubuntu22

-RUN apt-get update -y \
-    && apt-get install -y --no-install-recommends \
-    sudo \
-    lsb-release \
+# 'gpg-agent' and 'software-properties-common' are needed for the 'add-apt-repository' command that follows
+RUN apt update -y \
+    && apt install -y --no-install-recommends sudo lsb-release gpg-agent software-properties-common \
    && rm -rf /var/lib/apt/lists/*

+# Configure git-core/ppa based on guidance here:  https://git-scm.com/download/linux
+RUN add-apt-repository ppa:git-core/ppa \
+    && apt update -y
+
 RUN adduser --disabled-password --gecos "" --uid 1001 runner \
    && groupadd docker --gid 123 \
    && usermod -aG sudo runner \
@@ -49,6 +58,7 @@ RUN adduser --disabled-password --gecos "" --uid 1001 runner \
 WORKDIR /home/runner

 COPY --chown=runner:docker --from=build /actions-runner .
+COPY --from=build /usr/local/lib/docker/cli-plugins/docker-buildx /usr/local/lib/docker/cli-plugins/docker-buildx

 RUN install -o root -g root -m 755 docker/* /usr/bin/ && rm -rf docker

--- a/releaseNote.md
+++ b/releaseNote.md
@@ -1,29 +1,30 @@
-## Features
- Support linux/arm64 docker build (#2601)
- Add node20 to runner (#2732)
- Update node16 to latest version (#2736)
- Remove node12 from runner (#2717)
+## What's Changed

-## Misc
- Pass timeout in ExecutionContext instead of StepsRunner (#2714)
- Return early on invalid_client OAuth exception (#2721)
- Expose results service endpoint as environment variable (#2726)
- Update HTTPEventSourceListener to trace the right events (#2727)
- Change RunnerId/AgentId from int32 to uint64 (#2661)
- Configure stale bot for Runner (#2729)
- Add in dependabot security scanning/updates (#2743)
- Bump dotnet sdk to latest version (#2733)
- Switch from InnerException to ErrorCode on disableupdate check (#2718)
+- Update Docker to v27.1.1 by @TingluoHuang in https://github.com/actions/runner/pull/3401
+- Upgrade dotnet sdk to v8.0.303 in https://github.com/actions/runner/pull/3388
+- Rephrase node20 warning by @rentziass in https://github.com/actions/runner/pull/3376
+- Bump hook version to 0.6.1 by @nikola-jokic in https://github.com/actions/runner/pull/3350
+- Backoff to avoid excessive retries to Run Service in a duration by @ericsciple in https://github.com/actions/runner/pull/3354
+- Bump System.Security.Cryptography.Pkcs from 5.0.0 to 8.0.0 in /src in https://github.com/actions/runner/pull/3347
+- Upgrade dotnet sdk to v8.0.302 in https://github.com/actions/runner/pull/3346
+- Bump runner to dotnet 8 by @TingluoHuang in https://github.com/actions/runner/pull/3345
+- Pass runner version as environment variable in workflow by @joshmgross in https://github.com/actions/runner/pull/3318
+- Make sure we mask secrets when reporting telemetry by @TingluoHuang in https://github.com/actions/runner/pull/3315
+- Bump docker version and docker buildx version by @int128 in https://github.com/actions/runner/pull/3277
+
+**Full Changelog**: https://github.com/actions/runner/compare/v2.317.0...v2.318.0

 _Note: Actions Runner follows a progressive release policy, so the latest release might not be available to your enterprise, organization, or repository yet.
 To confirm which version of the Actions Runner you should expect, please view the download instructions for your enterprise, organization, or repository.
 See https://docs.github.com/en/enterprise-cloud@latest/actions/hosting-your-own-runners/adding-self-hosted-runners_

 ## Windows x64
+
 We recommend configuring the runner in a root folder of the Windows drive (e.g. "C:\actions-runner"). This will help avoid issues related to service identity folder permissions and long file path restrictions on Windows.

 The following snipped needs to be run on `powershell`:
-``` powershell
+
+```powershell
 # Create a folder under the drive root
 mkdir \actions-runner ; cd \actions-runner
 # Download the latest runner package
@@ -34,12 +35,14 @@ Add-Type -AssemblyName System.IO.Compression.FileSystem ;
 ```

 ## [Pre-release] Windows arm64
+
 **Warning:** Windows arm64 runners are currently in preview status and use [unofficial versions of nodejs](https://unofficial-builds.nodejs.org/). They are not intended for production workflows.

 We recommend configuring the runner in a root folder of the Windows drive (e.g. "C:\actions-runner"). This will help avoid issues related to service identity folder permissions and long file path restrictions on Windows.

 The following snipped needs to be run on `powershell`:
-``` powershell
+
+```powershell
 # Create a folder under the drive root
 mkdir \actions-runner ; cd \actions-runner
 # Download the latest runner package
@@ -51,7 +54,7 @@ Add-Type -AssemblyName System.IO.Compression.FileSystem ;

 ## OSX x64

-``` bash
+```bash
 # Create a folder
 mkdir actions-runner && cd actions-runner
 # Download the latest runner package
@@ -62,7 +65,7 @@ tar xzf ./actions-runner-osx-x64-<RUNNER_VERSION>.tar.gz

 ## OSX arm64 (Apple silicon)

-``` bash
+```bash
 # Create a folder
 mkdir actions-runner && cd actions-runner
 # Download the latest runner package
@@ -73,7 +76,7 @@ tar xzf ./actions-runner-osx-arm64-<RUNNER_VERSION>.tar.gz

 ## Linux x64

-``` bash
+```bash
 # Create a folder
 mkdir actions-runner && cd actions-runner
 # Download the latest runner package
@@ -84,7 +87,7 @@ tar xzf ./actions-runner-linux-x64-<RUNNER_VERSION>.tar.gz

 ## Linux arm64

-``` bash
+```bash
 # Create a folder
 mkdir actions-runner && cd actions-runner
 # Download the latest runner package
@@ -95,7 +98,7 @@ tar xzf ./actions-runner-linux-arm64-<RUNNER_VERSION>.tar.gz

 ## Linux arm

-``` bash
+```bash
 # Create a folder
 mkdir actions-runner && cd actions-runner
 # Download the latest runner package
@@ -105,6 +108,7 @@ tar xzf ./actions-runner-linux-arm-<RUNNER_VERSION>.tar.gz
 ```

 ## Using your self hosted runner
+
 For additional details about configuring, running, or shutting down the runner please check out our [product docs.](https://help.github.com/en/actions/automating-your-workflow-with-github-actions/adding-self-hosted-runners)

 ## SHA-256 Checksums
@@ -118,27 +122,3 @@ The SHA-256 checksums for the packages included in this build are shown below:
 - actions-runner-linux-x64-<RUNNER_VERSION>.tar.gz <!-- BEGIN SHA linux-x64 --><LINUX_X64_SHA><!-- END SHA linux-x64 -->
 - actions-runner-linux-arm64-<RUNNER_VERSION>.tar.gz <!-- BEGIN SHA linux-arm64 --><LINUX_ARM64_SHA><!-- END SHA linux-arm64 -->
 - actions-runner-linux-arm-<RUNNER_VERSION>.tar.gz <!-- BEGIN SHA linux-arm --><LINUX_ARM_SHA><!-- END SHA linux-arm -->
-
- actions-runner-win-x64-<RUNNER_VERSION>-noexternals.zip <!-- BEGIN SHA win-x64_noexternals --><WIN_X64_SHA_NOEXTERNALS><!-- END SHA win-x64_noexternals -->
- actions-runner-win-arm64-<RUNNER_VERSION>-noexternals.zip <!-- BEGIN SHA win-arm64_noexternals --><WIN_ARM64_SHA_NOEXTERNALS><!-- END SHA win-arm64_noexternals -->
- actions-runner-osx-x64-<RUNNER_VERSION>-noexternals.tar.gz <!-- BEGIN SHA osx-x64_noexternals --><OSX_X64_SHA_NOEXTERNALS><!-- END SHA osx-x64_noexternals -->
- actions-runner-osx-arm64-<RUNNER_VERSION>-noexternals.tar.gz <!-- BEGIN SHA osx-arm64_noexternals --><OSX_ARM64_SHA_NOEXTERNALS><!-- END SHA osx-arm64_noexternals -->
- actions-runner-linux-x64-<RUNNER_VERSION>-noexternals.tar.gz <!-- BEGIN SHA linux-x64_noexternals --><LINUX_X64_SHA_NOEXTERNALS><!-- END SHA linux-x64_noexternals -->
- actions-runner-linux-arm64-<RUNNER_VERSION>-noexternals.tar.gz <!-- BEGIN SHA linux-arm64_noexternals --><LINUX_ARM64_SHA_NOEXTERNALS><!-- END SHA linux-arm64_noexternals -->
- actions-runner-linux-arm-<RUNNER_VERSION>-noexternals.tar.gz <!-- BEGIN SHA linux-arm_noexternals --><LINUX_ARM_SHA_NOEXTERNALS><!-- END SHA linux-arm_noexternals -->
-
- actions-runner-win-x64-<RUNNER_VERSION>-noruntime.zip <!-- BEGIN SHA win-x64_noruntime --><WIN_X64_SHA_NORUNTIME><!-- END SHA win-x64_noruntime -->
- actions-runner-win-arm64-<RUNNER_VERSION>-noruntime.zip <!-- BEGIN SHA win-arm64_noruntime --><WIN_ARM64_SHA_NORUNTIME><!-- END SHA win-arm64_noruntime -->
- actions-runner-osx-x64-<RUNNER_VERSION>-noruntime.tar.gz <!-- BEGIN SHA osx-x64_noruntime --><OSX_X64_SHA_NORUNTIME><!-- END SHA osx-x64_noruntime -->
- actions-runner-osx-arm64-<RUNNER_VERSION>-noruntime.tar.gz <!-- BEGIN SHA osx-arm64_noruntime --><OSX_ARM64_SHA_NORUNTIME><!-- END SHA osx-arm64_noruntime -->
- actions-runner-linux-x64-<RUNNER_VERSION>-noruntime.tar.gz <!-- BEGIN SHA linux-x64_noruntime --><LINUX_X64_SHA_NORUNTIME><!-- END SHA linux-x64_noruntime -->
- actions-runner-linux-arm64-<RUNNER_VERSION>-noruntime.tar.gz <!-- BEGIN SHA linux-arm64_noruntime --><LINUX_ARM64_SHA_NORUNTIME><!-- END SHA linux-arm64_noruntime -->
- actions-runner-linux-arm-<RUNNER_VERSION>-noruntime.tar.gz <!-- BEGIN SHA linux-arm_noruntime --><LINUX_ARM_SHA_NORUNTIME><!-- END SHA linux-arm_noruntime -->
-
- actions-runner-win-x64-<RUNNER_VERSION>-noruntime-noexternals.zip <!-- BEGIN SHA win-x64_noruntime_noexternals --><WIN_X64_SHA_NORUNTIME_NOEXTERNALS><!-- END SHA win-x64_noruntime_noexternals -->
- actions-runner-win-arm64-<RUNNER_VERSION>-noruntime-noexternals.zip <!-- BEGIN SHA win-arm64_noruntime_noexternals --><WIN_ARM64_SHA_NORUNTIME_NOEXTERNALS><!-- END SHA win-arm64_noruntime_noexternals -->
- actions-runner-osx-x64-<RUNNER_VERSION>-noruntime-noexternals.tar.gz <!-- BEGIN SHA osx-x64_noruntime_noexternals --><OSX_X64_SHA_NORUNTIME_NOEXTERNALS><!-- END SHA osx-x64_noruntime_noexternals -->
- actions-runner-osx-arm64-<RUNNER_VERSION>-noruntime-noexternals.tar.gz <!-- BEGIN SHA osx-arm64_noruntime_noexternals --><OSX_ARM64_SHA_NORUNTIME_NOEXTERNALS><!-- END SHA osx-arm64_noruntime_noexternals -->
- actions-runner-linux-x64-<RUNNER_VERSION>-noruntime-noexternals.tar.gz <!-- BEGIN SHA linux-x64_noruntime_noexternals --><LINUX_X64_SHA_NORUNTIME_NOEXTERNALS><!-- END SHA linux-x64_noruntime_noexternals -->
- actions-runner-linux-arm64-<RUNNER_VERSION>-noruntime-noexternals.tar.gz <!-- BEGIN SHA linux-arm64_noruntime_noexternals --><LINUX_ARM64_SHA_NORUNTIME_NOEXTERNALS><!-- END SHA linux-arm64_noruntime_noexternals -->
- actions-runner-linux-arm-<RUNNER_VERSION>-noruntime-noexternals.tar.gz <!-- BEGIN SHA linux-arm_noruntime_noexternals --><LINUX_ARM_SHA_NORUNTIME_NOEXTERNALS><!-- END SHA linux-arm_noruntime_noexternals -->
--- a/scripts/create-latest-svc.sh
+++ b/scripts/create-latest-svc.sh
@@ -8,7 +8,7 @@ set -e
 # Configures it as a service more secure
 # Should be used on VMs and not containers
 # Works on OSX and Linux
-# Assumes x64 arch
+# Assumes x64 arch (support arm64)
 # See EXAMPLES below

 flags_found=false
@@ -87,6 +87,9 @@ sudo echo
 runner_plat=linux
 [ ! -z "$(which sw_vers)" ] && runner_plat=osx;

+runner_arch=x64
+[ ! -z "$(arch | grep arm64)" ] && runner_arch=arm64
+
 function fatal()
 {
   echo "error: $1" >&2
@@ -139,7 +142,7 @@ echo "Downloading latest runner ..."
 # For the GHES Alpha, download the runner from github.com
 latest_version_label=$(curl -s -X GET 'https://api.github.com/repos/actions/runner/releases/latest' | jq -r '.tag_name')
 latest_version=$(echo ${latest_version_label:1})
-runner_file="actions-runner-${runner_plat}-x64-${latest_version}.tar.gz"
+runner_file="actions-runner-${runner_plat}-${runner_arch}-${latest_version}.tar.gz"

 if [ -f "${runner_file}" ]; then
    echo "${runner_file} exists. skipping download."
--- a/src/Misc/contentHash/dotnetRuntime/linux-arm
+++ b/src/Misc/contentHash/dotnetRuntime/linux-arm
@@ -1 +0,0 @@
-7b78ca2997fbe048642d3717ab7321cdd359752b97158f3c67eb3df8786e21d3
--- a/src/Misc/contentHash/dotnetRuntime/linux-arm64
+++ b/src/Misc/contentHash/dotnetRuntime/linux-arm64
@@ -1 +0,0 @@
-6f34c1d501c87c2e22c2278df7152999aca628c66ee4176d32325773487da6d7
--- a/src/Misc/contentHash/dotnetRuntime/linux-x64
+++ b/src/Misc/contentHash/dotnetRuntime/linux-x64
@@ -1 +0,0 @@
-921ca58050be56e0b84af05e544cab4a151cb66405e815e19c0e0928ef7313f5
--- a/src/Misc/contentHash/dotnetRuntime/osx-arm64
+++ b/src/Misc/contentHash/dotnetRuntime/osx-arm64
@@ -1 +0,0 @@
-50f5c147074fc4943b4198b2d9b57c5e94344ab21350b0880ec8e2b85d27152b
--- a/src/Misc/contentHash/dotnetRuntime/osx-x64
+++ b/src/Misc/contentHash/dotnetRuntime/osx-x64
@@ -1 +0,0 @@
-16269548335b1f2add41a409aa3558c56581b63f280a9a26956707b6370558bd
--- a/src/Misc/contentHash/dotnetRuntime/win-arm64
+++ b/src/Misc/contentHash/dotnetRuntime/win-arm64
@@ -1 +0,0 @@
-e4aa6003ec77a2b21f3021927fed48727bde379fafff300f39565ff2fff4dd87
--- a/src/Misc/contentHash/dotnetRuntime/win-x64
+++ b/src/Misc/contentHash/dotnetRuntime/win-x64
@@ -1 +0,0 @@
-16ab4c166c58bc4c5600ff055be7ce0a9bb0dd993388114a76efea51e4ea14cb
--- a/src/Misc/contentHash/externals/linux-arm
+++ b/src/Misc/contentHash/externals/linux-arm
@@ -1 +0,0 @@
-5bdddd32bab1e57af252b470579083049496e9e39b6e4f50de01232581f9a2d8
--- a/src/Misc/contentHash/externals/linux-arm64
+++ b/src/Misc/contentHash/externals/linux-arm64
@@ -1 +0,0 @@
-54b3b3a72da93db0fa38708c759fceadddb70cacdd3620a079084a242126dd78
--- a/src/Misc/contentHash/externals/linux-x64
+++ b/src/Misc/contentHash/externals/linux-x64
@@ -1 +0,0 @@
-e7f2da271abb174285c3a757503538b3e9792e9d731b0382b6d1f21bb59a79ba
--- a/src/Misc/contentHash/externals/osx-arm64
+++ b/src/Misc/contentHash/externals/osx-arm64
@@ -1 +0,0 @@
-2481c5b0d06b2b5621635f2568b86a43b0e5b259fed1298167ba4f33d4c464c7
--- a/src/Misc/contentHash/externals/osx-x64
+++ b/src/Misc/contentHash/externals/osx-x64
@@ -1 +0,0 @@
-85de7677165e65ec69b8a9e344c0811efa51b7fe5376a1aa083505c560ea6f57
--- a/src/Misc/contentHash/externals/win-arm64
+++ b/src/Misc/contentHash/externals/win-arm64
@@ -1 +0,0 @@
-763d18de11c11fd299c0e75e98fefc8a0e6605ae0ad6aba3bbc110db2262ab41
--- a/src/Misc/contentHash/externals/win-x64
+++ b/src/Misc/contentHash/externals/win-x64
@@ -1 +0,0 @@
-16f3cc545dfe10e84df43746073fc64d3c44d1891782532805aeb2118869a55d
--- a/src/Misc/expressionFunc/hashFiles/package-lock.json
+++ b/src/Misc/expressionFunc/hashFiles/package-lock.json
@@ -12,16 +12,16 @@
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+      "version": "6.7.2",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-6.7.2.tgz",
+      "integrity": "sha512-ooaHxlmSgZTM6CHYAFRlifqh1OAr3PAQEwi7lhYhaegbnXrnh7CDcHmc3+ihhbQC7H0i4JF0psI5ehzkF6Yl6Q==",
      "dev": true,
      "requires": {
        "@eslint-community/regexpp": "^4.5.1",
-        "@typescript-eslint/scope-manager": "6.4.1",
-        "@typescript-eslint/type-utils": "6.4.1",
-        "@typescript-eslint/utils": "6.4.1",
-        "@typescript-eslint/visitor-keys": "6.4.1",
+        "@typescript-eslint/scope-manager": "6.7.2",
+        "@typescript-eslint/type-utils": "6.7.2",
+        "@typescript-eslint/utils": "6.7.2",
+        "@typescript-eslint/visitor-keys": "6.7.2",
        "debug": "^4.3.4",
        "graphemer": "^1.4.0",
        "ignore": "^5.2.4",
@@ -4375,97 +4301,54 @@
      }
    },
    "@typescript-eslint/parser": {
-      "version": "6.4.1",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/parser/-/parser-6.4.1.tgz",
-      "integrity": "sha512-610G6KHymg9V7EqOaNBMtD1GgpAmGROsmfHJPXNLCU9bfIuLrkdOygltK784F6Crboyd5tBFayPB7Sf0McrQwg==",
+      "version": "6.7.2",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/parser/-/parser-6.7.2.tgz",
+      "integrity": "sha512-KA3E4ox0ws+SPyxQf9iSI25R6b4Ne78ORhNHeVKrPQnoYsb9UhieoiRoJgrzgEeKGOXhcY1i8YtOeCHHTDa6Fw==",
      "dev": true,
      "requires": {
-        "@typescript-eslint/scope-manager": "6.4.1",
-        "@typescript-eslint/types": "6.4.1",
-        "@typescript-eslint/typescript-estree": "6.4.1",
-        "@typescript-eslint/visitor-keys": "6.4.1",
+        "@typescript-eslint/scope-manager": "6.7.2",
+        "@typescript-eslint/types": "6.7.2",
+        "@typescript-eslint/typescript-estree": "6.7.2",
+        "@typescript-eslint/visitor-keys": "6.7.2",
        "debug": "^4.3.4"
-      },
-      "dependencies": {
-        "@typescript-eslint/scope-manager": {
-          "version": "6.4.1",
-          "resolved": "https://registry.npmjs.org/@typescript-eslint/scope-manager/-/scope-manager-6.4.1.tgz",
-          "integrity": "sha512-p/OavqOQfm4/Hdrr7kvacOSFjwQ2rrDVJRPxt/o0TOWdFnjJptnjnZ+sYDR7fi4OimvIuKp+2LCkc+rt9fIW+A==",
-          "dev": true,
-          "requires": {
-            "@typescript-eslint/types": "6.4.1",
-            "@typescript-eslint/visitor-keys": "6.4.1"
-          }
-        },
-        "@typescript-eslint/types": {
-          "version": "6.4.1",
-          "resolved": "https://registry.npmjs.org/@typescript-eslint/types/-/types-6.4.1.tgz",
-          "integrity": "sha512-zAAopbNuYu++ijY1GV2ylCsQsi3B8QvfPHVqhGdDcbx/NK5lkqMnCGU53amAjccSpk+LfeONxwzUhDzArSfZJg==",
-          "dev": true
-        },
-        "@typescript-eslint/typescript-estree": {
-          "version": "6.4.1",
-          "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-6.4.1.tgz",
-          "integrity": "sha512-xF6Y7SatVE/OyV93h1xGgfOkHr2iXuo8ip0gbfzaKeGGuKiAnzS+HtVhSPx8Www243bwlW8IF7X0/B62SzFftg==",
-          "dev": true,
-          "requires": {
-            "@typescript-eslint/types": "6.4.1",
-            "@typescript-eslint/visitor-keys": "6.4.1",
-            "debug": "^4.3.4",
-            "globby": "^11.1.0",
-            "is-glob": "^4.0.3",
-            "semver": "^7.5.4",
-            "ts-api-utils": "^1.0.1"
-          }
-        },
-        "@typescript-eslint/visitor-keys": {
-          "version": "6.4.1",
-          "resolved": "https://registry.npmjs.org/@typescript-eslint/visitor-keys/-/visitor-keys-6.4.1.tgz",
-          "integrity": "sha512-y/TyRJsbZPkJIZQXrHfdnxVnxyKegnpEvnRGNam7s3TRR2ykGefEWOhaef00/UUN3IZxizS7BTO3svd3lCOJRQ==",
-          "dev": true,
-          "requires": {
-            "@typescript-eslint/types": "6.4.1",
-            "eslint-visitor-keys": "^3.4.1"
-          }
-        }
      }
    },
    "@typescript-eslint/scope-manager": {
-      "version": "6.4.1",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/scope-manager/-/scope-manager-6.4.1.tgz",
-      "integrity": "sha512-p/OavqOQfm4/Hdrr7kvacOSFjwQ2rrDVJRPxt/o0TOWdFnjJptnjnZ+sYDR7fi4OimvIuKp+2LCkc+rt9fIW+A==",
+      "version": "6.7.2",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/scope-manager/-/scope-manager-6.7.2.tgz",
+      "integrity": "sha512-bgi6plgyZjEqapr7u2mhxGR6E8WCzKNUFWNh6fkpVe9+yzRZeYtDTbsIBzKbcxI+r1qVWt6VIoMSNZ4r2A+6Yw==",
      "dev": true,
      "requires": {
-        "@typescript-eslint/types": "6.4.1",
-        "@typescript-eslint/visitor-keys": "6.4.1"
+        "@typescript-eslint/types": "6.7.2",
+        "@typescript-eslint/visitor-keys": "6.7.2"
      }
    },
    "@typescript-eslint/type-utils": {
-      "version": "6.4.1",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/type-utils/-/type-utils-6.4.1.tgz",
-      "integrity": "sha512-7ON8M8NXh73SGZ5XvIqWHjgX2f+vvaOarNliGhjrJnv1vdjG0LVIz+ToYfPirOoBi56jxAKLfsLm40+RvxVVXA==",
+      "version": "6.7.2",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/type-utils/-/type-utils-6.7.2.tgz",
+      "integrity": "sha512-36F4fOYIROYRl0qj95dYKx6kybddLtsbmPIYNK0OBeXv2j9L5nZ17j9jmfy+bIDHKQgn2EZX+cofsqi8NPATBQ==",
      "dev": true,
      "requires": {
-        "@typescript-eslint/typescript-estree": "6.4.1",
-        "@typescript-eslint/utils": "6.4.1",
+        "@typescript-eslint/typescript-estree": "6.7.2",
+        "@typescript-eslint/utils": "6.7.2",
        "debug": "^4.3.4",
        "ts-api-utils": "^1.0.1"
      }
    },
    "@typescript-eslint/types": {
-      "version": "6.4.1",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/types/-/types-6.4.1.tgz",
-      "integrity": "sha512-zAAopbNuYu++ijY1GV2ylCsQsi3B8QvfPHVqhGdDcbx/NK5lkqMnCGU53amAjccSpk+LfeONxwzUhDzArSfZJg==",
+      "version": "6.7.2",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/types/-/types-6.7.2.tgz",
+      "integrity": "sha512-flJYwMYgnUNDAN9/GAI3l8+wTmvTYdv64fcH8aoJK76Y+1FCZ08RtI5zDerM/FYT5DMkAc+19E4aLmd5KqdFyg==",
      "dev": true
    },
    "@typescript-eslint/typescript-estree": {
-      "version": "6.4.1",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-6.4.1.tgz",
-      "integrity": "sha512-xF6Y7SatVE/OyV93h1xGgfOkHr2iXuo8ip0gbfzaKeGGuKiAnzS+HtVhSPx8Www243bwlW8IF7X0/B62SzFftg==",
+      "version": "6.7.2",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-6.7.2.tgz",
+      "integrity": "sha512-kiJKVMLkoSciGyFU0TOY0fRxnp9qq1AzVOHNeN1+B9erKFCJ4Z8WdjAkKQPP+b1pWStGFqezMLltxO+308dJTQ==",
      "dev": true,
      "requires": {
-        "@typescript-eslint/types": "6.4.1",
-        "@typescript-eslint/visitor-keys": "6.4.1",
+        "@typescript-eslint/types": "6.7.2",
+        "@typescript-eslint/visitor-keys": "6.7.2",
        "debug": "^4.3.4",
        "globby": "^11.1.0",
        "is-glob": "^4.0.3",
@@ -4474,34 +4357,34 @@
      }
    },
    "@typescript-eslint/utils": {
-      "version": "6.4.1",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/utils/-/utils-6.4.1.tgz",
-      "integrity": "sha512-F/6r2RieNeorU0zhqZNv89s9bDZSovv3bZQpUNOmmQK1L80/cV4KEu95YUJWi75u5PhboFoKUJBnZ4FQcoqhDw==",
+      "version": "6.7.2",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/utils/-/utils-6.7.2.tgz",
+      "integrity": "sha512-ZCcBJug/TS6fXRTsoTkgnsvyWSiXwMNiPzBUani7hDidBdj1779qwM1FIAmpH4lvlOZNF3EScsxxuGifjpLSWQ==",
      "dev": true,
      "requires": {
        "@eslint-community/eslint-utils": "^4.4.0",
        "@types/json-schema": "^7.0.12",
        "@types/semver": "^7.5.0",
-        "@typescript-eslint/scope-manager": "6.4.1",
-        "@typescript-eslint/types": "6.4.1",
-        "@typescript-eslint/typescript-estree": "6.4.1",
+        "@typescript-eslint/scope-manager": "6.7.2",
+        "@typescript-eslint/types": "6.7.2",
+        "@typescript-eslint/typescript-estree": "6.7.2",
        "semver": "^7.5.4"
      }
    },
    "@typescript-eslint/visitor-keys": {
-      "version": "6.4.1",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/visitor-keys/-/visitor-keys-6.4.1.tgz",
-      "integrity": "sha512-y/TyRJsbZPkJIZQXrHfdnxVnxyKegnpEvnRGNam7s3TRR2ykGefEWOhaef00/UUN3IZxizS7BTO3svd3lCOJRQ==",
+      "version": "6.7.2",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/visitor-keys/-/visitor-keys-6.7.2.tgz",
+      "integrity": "sha512-uVw9VIMFBUTz8rIeaUT3fFe8xIUx8r4ywAdlQv1ifH+6acn/XF8Y6rwJ7XNmkNMDrTW+7+vxFFPIF40nJCVsMQ==",
      "dev": true,
      "requires": {
-        "@typescript-eslint/types": "6.4.1",
+        "@typescript-eslint/types": "6.7.2",
        "eslint-visitor-keys": "^3.4.1"
      }
    },
    "@vercel/ncc": {
-      "version": "0.36.1",
-      "resolved": "https://registry.npmjs.org/@vercel/ncc/-/ncc-0.36.1.tgz",
-      "integrity": "sha512-S4cL7Taa9yb5qbv+6wLgiKVZ03Qfkc4jGRuiUQMQ8HGBD5pcNRnHeYM33zBvJE4/zJGjJJ8GScB+WmTsn9mORw==",
+      "version": "0.38.0",
+      "resolved": "https://registry.npmjs.org/@vercel/ncc/-/ncc-0.38.0.tgz",
+      "integrity": "sha512-B4YKZMm/EqMptKSFyAq4q2SlgJe+VCmEH6Y8gf/E1pTlWbsUJpuH1ymik2Ex3aYO5mCWwV1kaSYHSQOT8+4vHA==",
      "dev": true
    },
    "acorn": {
@@ -5161,9 +5044,9 @@
      }
    },
    "eslint-plugin-github": {
-      "version": "4.9.2",
-      "resolved": "https://registry.npmjs.org/eslint-plugin-github/-/eslint-plugin-github-4.9.2.tgz",
-      "integrity": "sha512-osez6Sio/fLr/3QkW5HE1wbCOcmYG5030/6QIa9IcKyyfchewlecdnYcsbeUMUtdIiU9lWqhroQp2H/O7auxBA==",
+      "version": "4.10.0",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-github/-/eslint-plugin-github-4.10.0.tgz",
+      "integrity": "sha512-YKtqBtFbjih1wZNTwZjtLPEG6B/4ySMa38fgOo/rbMJpNKO3+OaKzwwOYkeKx/FapM/4MsTP9ExqUcDV+dkixA==",
      "dev": true,
      "requires": {
        "@github/browserslist-config": "^1.0.0",
@@ -6397,9 +6280,9 @@
      "dev": true
    },
    "prettier": {
-      "version": "3.0.2",
-      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.0.2.tgz",
-      "integrity": "sha512-o2YR9qtniXvwEZlOKbveKfDQVyqxbEIWn48Z8m3ZJjBjcCmUy3xZGIv+7AkaeuaTr6yPXJjwv07ZWlsWbEy1rQ==",
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.0.3.tgz",
+      "integrity": "sha512-L/4pUDMxcNa8R/EthV08Zt42WBO4h1rarVtK0K+QJG0X187OLo7l699jWw0GKuwzkPQ//jMFA/8Xm6Fh3J/DAg==",
      "dev": true
    },
    "prettier-linter-helpers": {
--- a/src/Misc/expressionFunc/hashFiles/package.json
+++ b/src/Misc/expressionFunc/hashFiles/package.json
@@ -36,14 +36,14 @@
    "@actions/glob": "^0.4.0"
  },
  "devDependencies": {
-    "@types/node": "^20.5.6",
-    "@typescript-eslint/eslint-plugin": "^6.4.0",
-    "@typescript-eslint/parser": "^6.4.1",
-    "@vercel/ncc": "^0.36.1",
+    "@types/node": "^20.6.2",
+    "@typescript-eslint/eslint-plugin": "^6.7.2",
+    "@typescript-eslint/parser": "^6.7.2",
+    "@vercel/ncc": "^0.38.0",
    "eslint": "^8.47.0",
-    "eslint-plugin-github": "^4.9.2",
+    "eslint-plugin-github": "^4.10.0",
    "eslint-plugin-prettier": "^5.0.0",
-    "prettier": "^3.0.1",
+    "prettier": "^3.0.3",
    "typescript": "^5.2.2",
    "husky": "^8.0.3",
    "lint-staged": "^14.0.0"
--- a/src/Misc/externals.sh
+++ b/src/Misc/externals.sh
@@ -4,10 +4,12 @@ PRECACHE=$2

 NODE_URL=https://nodejs.org/dist
 UNOFFICIAL_NODE_URL=https://unofficial-builds.nodejs.org/download/release
-NODE16_VERSION="16.20.1"
-NODE20_VERSION="20.5.0"
-# used only for win-arm64, remove node16 unofficial version when official version is available
-NODE16_UNOFFICIAL_VERSION="16.20.0"
+NODE_ALPINE_URL=https://github.com/actions/alpine_nodejs/releases/download
+# When you update Node versions you must also create a new release of alpine_nodejs at that updated version.
+# Follow the instructions here: https://github.com/actions/alpine_nodejs?tab=readme-ov-file#getting-started
+NODE16_VERSION="16.20.2"
+NODE20_VERSION="20.13.1"
+NODE16_UNOFFICIAL_VERSION="16.20.0" # used only for win-arm64, remove node16 unofficial version when official version is available

 get_abs_path() {
  # exploits the fact that pwd will print abs path when no args
@@ -62,17 +64,16 @@ function acquireExternalTool() {
            echo "Curl version: $CURL_VERSION"

            # curl -f Fail silently (no output at all) on HTTP errors (H)
-            #      -k Allow connections to SSL sites without certs (H)
            #      -S Show error. With -s, make curl show errors when they occur
            #      -L Follow redirects (H)
            #      -o FILE    Write to FILE instead of stdout
            #      --retry 3   Retries transient errors 3 times (timeouts, 5xx)
            if [[ "$(printf '%s\n' "7.71.0" "$CURL_VERSION" | sort -V | head -n1)" != "7.71.0" ]]; then
                # Curl version is less than or equal to 7.71.0, skipping retry-all-errors flag
-                 curl -fkSL --retry 3 -o "$partial_target" "$download_source" 2>"${download_target}_download.log" || checkRC 'curl'
+                 curl -fSL --retry 3 -o "$partial_target" "$download_source" 2>"${download_target}_download.log" || checkRC 'curl'
            else
                # Curl version is greater than 7.71.0, running curl with --retry-all-errors flag
-                 curl -fkSL --retry 3 --retry-all-errors -o "$partial_target" "$download_source" 2>"${download_target}_download.log" || checkRC 'curl'
+                 curl -fSL --retry 3 --retry-all-errors -o "$partial_target" "$download_source" 2>"${download_target}_download.log" || checkRC 'curl'
            fi

            # Move the partial file to the download target.
@@ -175,9 +176,9 @@ fi
 # Download the external tools for Linux PACKAGERUNTIMEs.
 if [[ "$PACKAGERUNTIME" == "linux-x64" ]]; then
    acquireExternalTool "$NODE_URL/v${NODE16_VERSION}/node-v${NODE16_VERSION}-linux-x64.tar.gz" node16 fix_nested_dir
-    acquireExternalTool "https://vstsagenttools.blob.core.windows.net/tools/nodejs/${NODE16_VERSION}/alpine/x64/node-v${NODE16_VERSION}-alpine-x64.tar.gz" node16_alpine
+    acquireExternalTool "$NODE_ALPINE_URL/v${NODE16_VERSION}/node-v${NODE16_VERSION}-alpine-x64.tar.gz" node16_alpine
    acquireExternalTool "$NODE_URL/v${NODE20_VERSION}/node-v${NODE20_VERSION}-linux-x64.tar.gz" node20 fix_nested_dir
-    acquireExternalTool "https://vstsagenttools.blob.core.windows.net/tools/nodejs/${NODE20_VERSION}/alpine/x64/node-v${NODE20_VERSION}-alpine-x64.tar.gz" node20_alpine
+    acquireExternalTool "$NODE_ALPINE_URL/v${NODE20_VERSION}/node-v${NODE20_VERSION}-alpine-x64.tar.gz" node20_alpine
 fi

 if [[ "$PACKAGERUNTIME" == "linux-arm64" ]]; then
--- a/src/Misc/layoutbin/RunnerService.js
+++ b/src/Misc/layoutbin/RunnerService.js
@@ -114,6 +114,11 @@ var runService = function () {
            );
            stopping = true;
          }
+        } else if (code === 5) {
+          console.log(
+            "Runner listener exit with Session Conflict error, stop the service, no retry needed."
+          );
+          stopping = true;
        } else {
          var messagePrefix = "Runner listener exit with undefined return code";
          unknownFailureRetryCount++;
--- a/src/Misc/layoutroot/run-helper.cmd.template
+++ b/src/Misc/layoutroot/run-helper.cmd.template
@@ -2,7 +2,7 @@
 SET UPDATEFILE=update.finished
 "%~dp0\bin\Runner.Listener.exe" run %*

-rem using `if %ERRORLEVEL% EQU N` insterad of `if ERRORLEVEL N`
+rem using `if %ERRORLEVEL% EQU N` instead of `if ERRORLEVEL N`
 rem `if ERRORLEVEL N` means: error level is N or MORE
  
 if %ERRORLEVEL% EQU 0 (
@@ -49,5 +49,10 @@ if %ERRORLEVEL% EQU 4 (
  exit /b 1
 )

+if %ERRORLEVEL% EQU 5 (
+  echo "Runner listener exit with Session Conflict error, stop the service, no retry needed."
+  exit /b 0
+)
+
 echo "Exiting after unknown error code: %ERRORLEVEL%"
 exit /b 0
--- a/src/Misc/layoutroot/run-helper.sh.template
+++ b/src/Misc/layoutroot/run-helper.sh.template
@@ -70,6 +70,9 @@ elif [[ $returnCode == 4 ]]; then
        "$DIR"/safe_sleep.sh 1
    done
    exit 2
+elif [[ $returnCode == 5 ]]; then
+    echo "Runner listener exit with Session Conflict error, stop the service, no retry needed."
+    exit 0
 else
    echo "Exiting with unknown error code: ${returnCode}"
    exit 0
--- a/src/Misc/layoutroot/run.sh
+++ b/src/Misc/layoutroot/run.sh
@@ -38,7 +38,7 @@ runWithManualTrap() {
        cp -f "$DIR"/run-helper.sh.template "$DIR"/run-helper.sh
        "$DIR"/run-helper.sh $* &
        PID=$!
-        wait -f $PID
+        wait $PID
        returnCode=$?
        if [[ $returnCode -eq 2 ]]; then
            echo "Restarting runner..."
--- a/src/Misc/runnercoreassets
+++ b/src/Misc/runnercoreassets
@@ -1,57 +0,0 @@
-actions.runner.plist.template
-actions.runner.service.template
-checkScripts/downloadCert.js
-checkScripts/makeWebRequest.js
-darwin.svc.sh.template
-hashFiles/index.js
-installdependencies.sh
-macos-run-invoker.js
-Microsoft.IdentityModel.Logging.dll
-Microsoft.IdentityModel.Tokens.dll
-Minimatch.dll
-Newtonsoft.Json.Bson.dll
-Newtonsoft.Json.dll
-Runner.Common.deps.json
-Runner.Common.dll
-Runner.Common.pdb
-Runner.Listener
-Runner.Listener.deps.json
-Runner.Listener.dll
-Runner.Listener.exe
-Runner.Listener.pdb
-Runner.Listener.runtimeconfig.json
-Runner.PluginHost
-Runner.PluginHost.deps.json
-Runner.PluginHost.dll
-Runner.PluginHost.exe
-Runner.PluginHost.pdb
-Runner.PluginHost.runtimeconfig.json
-Runner.Plugins.deps.json
-Runner.Plugins.dll
-Runner.Plugins.pdb
-Runner.Sdk.deps.json
-Runner.Sdk.dll
-Runner.Sdk.pdb
-Runner.Worker
-Runner.Worker.deps.json
-Runner.Worker.dll
-Runner.Worker.exe
-Runner.Worker.pdb
-Runner.Worker.runtimeconfig.json
-RunnerService.exe
-RunnerService.exe.config
-RunnerService.js
-RunnerService.pdb
-runsvc.sh
-Sdk.deps.json
-Sdk.dll
-Sdk.pdb
-System.IdentityModel.Tokens.Jwt.dll
-System.Net.Http.Formatting.dll
-System.Security.Cryptography.Pkcs.dll
-System.Security.Cryptography.ProtectedData.dll
-System.ServiceProcess.ServiceController.dll
-systemd.svc.sh.template
-update.cmd.template
-update.sh.template
-YamlDotNet.dll
--- a/src/Misc/runnerdotnetruntimeassets
+++ b/src/Misc/runnerdotnetruntimeassets
@@ -1,268 +0,0 @@
-api-ms-win-core-console-l1-1-0.dll
-api-ms-win-core-console-l1-2-0.dll
-api-ms-win-core-datetime-l1-1-0.dll
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-createdump
-createdump.exe
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-hostfxr.dll
-hostpolicy.dll
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-libcoreclr.dylib
-libcoreclr.so
-libcoreclrtraceptprovider.so
-libdbgshim.dylib
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-libhostfxr.dylib
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-libhostpolicy.dylib
-libhostpolicy.so
-libmscordaccore.dylib
-libmscordaccore.so
-libmscordbi.dylib
-libmscordbi.so
-Microsoft.CSharp.dll
-Microsoft.DiaSymReader.Native.amd64.dll
-Microsoft.DiaSymReader.Native.arm64.dll
-Microsoft.VisualBasic.Core.dll
-Microsoft.VisualBasic.dll
-Microsoft.Win32.Primitives.dll
-Microsoft.Win32.Registry.dll
-mscordaccore.dll
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-System.Diagnostics.Contracts.dll
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-System.Dynamic.Runtime.dll
-System.Formats.Asn1.dll
-System.Globalization.Calendars.dll
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-System.Globalization.Native.dylib
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-System.IO.Compression.Brotli.dll
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-System.Text.Encoding.CodePages.dll
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-System.Threading.Timer.dll
-System.Transactions.dll
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-System.Xml.XmlSerializer.dll
-System.Xml.XPath.dll
-System.Xml.XPath.XDocument.dll
-ucrtbase.dll
-WindowsBase.dll
--- a/src/Misc/trimmedpackages_targz.json
+++ b/src/Misc/trimmedpackages_targz.json
@@ -1,24 +0,0 @@
-[
-    {
-        "HashValue": "<NO_RUNTIME_EXTERNALS_HASH>",
-        "DownloadUrl": "https://github.com/actions/runner/releases/download/v<RUNNER_VERSION>/actions-runner-<RUNNER_PLATFORM>-<RUNNER_VERSION>-noruntime-noexternals.tar.gz",
-        "TrimmedContents": {
-            "dotnetRuntime": "<RUNTIME_HASH>",
-            "externals": "<EXTERNALS_HASH>"
-        }
-    },
-    {
-        "HashValue": "<NO_RUNTIME_HASH>",
-        "DownloadUrl": "https://github.com/actions/runner/releases/download/v<RUNNER_VERSION>/actions-runner-<RUNNER_PLATFORM>-<RUNNER_VERSION>-noruntime.tar.gz",
-        "TrimmedContents": {
-            "dotnetRuntime": "<RUNTIME_HASH>"
-        }
-    },
-    {
-        "HashValue": "<NO_EXTERNALS_HASH>",
-        "DownloadUrl": "https://github.com/actions/runner/releases/download/v<RUNNER_VERSION>/actions-runner-<RUNNER_PLATFORM>-<RUNNER_VERSION>-noexternals.tar.gz",
-        "TrimmedContents": {
-            "externals": "<EXTERNALS_HASH>"
-        }
-    }
-]
--- a/src/Misc/trimmedpackages_zip.json
+++ b/src/Misc/trimmedpackages_zip.json
@@ -1,24 +0,0 @@
-[
-    {
-        "HashValue": "<NO_RUNTIME_EXTERNALS_HASH>",
-        "DownloadUrl": "https://github.com/actions/runner/releases/download/v<RUNNER_VERSION>/actions-runner-<RUNNER_PLATFORM>-<RUNNER_VERSION>-noruntime-noexternals.zip",
-        "TrimmedContents": {
-            "dotnetRuntime": "<RUNTIME_HASH>",
-            "externals": "<EXTERNALS_HASH>"
-        }
-    },
-    {
-        "HashValue": "<NO_RUNTIME_HASH>",
-        "DownloadUrl": "https://github.com/actions/runner/releases/download/v<RUNNER_VERSION>/actions-runner-<RUNNER_PLATFORM>-<RUNNER_VERSION>-noruntime.zip",
-        "TrimmedContents": {
-            "dotnetRuntime": "<RUNTIME_HASH>"
-        }
-    },
-    {
-        "HashValue": "<NO_EXTERNALS_HASH>",
-        "DownloadUrl": "https://github.com/actions/runner/releases/download/v<RUNNER_VERSION>/actions-runner-<RUNNER_PLATFORM>-<RUNNER_VERSION>-noexternals.zip",
-        "TrimmedContents": {
-            "externals": "<EXTERNALS_HASH>"
-        }
-    }
-]
--- a/src/Runner.Common/ActionsRunServer.cs
+++ b/src/Runner.Common/ActionsRunServer.cs
@@ -20,12 +20,12 @@ namespace GitHub.Runner.Common
    {
        private bool _hasConnection;
        private VssConnection _connection;
-        private TaskAgentHttpClient _taskAgentClient;
+        private ActionsRunServerHttpClient _actionsRunServerClient;

        public async Task ConnectAsync(Uri serverUrl, VssCredentials credentials)
        {
            _connection = await EstablishVssConnection(serverUrl, credentials, TimeSpan.FromSeconds(100));
-            _taskAgentClient = _connection.GetClient<TaskAgentHttpClient>();
+            _actionsRunServerClient = _connection.GetClient<ActionsRunServerHttpClient>();
            _hasConnection = true;
        }

@@ -42,7 +42,7 @@ namespace GitHub.Runner.Common
            CheckConnection();
            var jobMessage = RetryRequest<AgentJobRequestMessage>(async () =>
                                                    {
-                                                        return await _taskAgentClient.GetJobMessageAsync(id, cancellationToken);
+                                                        return await _actionsRunServerClient.GetJobMessageAsync(id, cancellationToken);
                                                    }, cancellationToken);

            return jobMessage;
--- a/src/Runner.Common/BrokerServer.cs
+++ b/src/Runner.Common/BrokerServer.cs
@@ -17,7 +17,14 @@ namespace GitHub.Runner.Common
    {
        Task ConnectAsync(Uri serverUrl, VssCredentials credentials);

-        Task<TaskAgentMessage> GetRunnerMessageAsync(CancellationToken token, TaskAgentStatus status, string version);
+        Task<TaskAgentSession> CreateSessionAsync(TaskAgentSession session, CancellationToken cancellationToken);
+        Task DeleteSessionAsync(CancellationToken cancellationToken);
+
+        Task<TaskAgentMessage> GetRunnerMessageAsync(Guid? sessionId, TaskAgentStatus status, string version, string os, string architecture, bool disableUpdate, CancellationToken token);
+
+        Task UpdateConnectionIfNeeded(Uri serverUri, VssCredentials credentials);
+
+        Task ForceRefreshConnection(VssCredentials credentials);
    }

    public sealed class BrokerServer : RunnerService, IBrokerServer
@@ -44,13 +51,53 @@ namespace GitHub.Runner.Common
            }
        }

-        public Task<TaskAgentMessage> GetRunnerMessageAsync(CancellationToken cancellationToken, TaskAgentStatus status, string version)
+        public async Task<TaskAgentSession> CreateSessionAsync(TaskAgentSession session, CancellationToken cancellationToken)
        {
            CheckConnection();
-            var jobMessage = RetryRequest<TaskAgentMessage>(
-                async () => await _brokerHttpClient.GetRunnerMessageAsync(version, status, cancellationToken), cancellationToken);
+            var jobMessage = await _brokerHttpClient.CreateSessionAsync(session, cancellationToken);

            return jobMessage;
        }
+
+        public Task<TaskAgentMessage> GetRunnerMessageAsync(Guid? sessionId, TaskAgentStatus status, string version, string os, string architecture, bool disableUpdate, CancellationToken cancellationToken)
+        {
+            CheckConnection();
+            var brokerSession = RetryRequest<TaskAgentMessage>(
+                async () => await _brokerHttpClient.GetRunnerMessageAsync(sessionId, version, status, os, architecture, disableUpdate, cancellationToken), cancellationToken, shouldRetry: ShouldRetryException);
+
+
+            return brokerSession;
+        }
+
+        public async Task DeleteSessionAsync(CancellationToken cancellationToken)
+        {
+            CheckConnection();
+            await _brokerHttpClient.DeleteSessionAsync(cancellationToken);
+        }
+
+        public Task UpdateConnectionIfNeeded(Uri serverUri, VssCredentials credentials)
+        {
+            if (_brokerUri != serverUri || !_hasConnection)
+            {
+                return ConnectAsync(serverUri, credentials);
+            }
+
+            return Task.CompletedTask;
+        }
+
+        public Task ForceRefreshConnection(VssCredentials credentials)
+        {
+            return ConnectAsync(_brokerUri, credentials);
+        }
+
+        public bool ShouldRetryException(Exception ex)
+        {
+            if (ex is AccessDeniedException ade && ade.ErrorCode == 1)
+            {
+                return false;
+            }
+
+            return true;
+        }
    }
 }
--- a/src/Runner.Common/Constants.cs
+++ b/src/Runner.Common/Constants.cs
@@ -69,6 +69,8 @@ namespace GitHub.Runner.Common
            public static readonly OSPlatform Platform = OSPlatform.OSX;
 #elif OS_WINDOWS
            public static readonly OSPlatform Platform = OSPlatform.Windows;
+#else
+            public static readonly OSPlatform Platform = OSPlatform.Linux;
 #endif

 #if X86
@@ -79,6 +81,8 @@ namespace GitHub.Runner.Common
            public static readonly Architecture PlatformArchitecture = Architecture.Arm;
 #elif ARM64
            public static readonly Architecture PlatformArchitecture = Architecture.Arm64;
+#else
+            public static readonly Architecture PlatformArchitecture = Architecture.X64;
 #endif

            public static readonly TimeSpan ExitOnUnloadTimeout = TimeSpan.FromSeconds(30);
@@ -149,6 +153,7 @@ namespace GitHub.Runner.Common
                public const int RetryableError = 2;
                public const int RunnerUpdating = 3;
                public const int RunOnceRunnerUpdating = 4;
+                public const int SessionConflict = 5;
            }

            public static class Features
@@ -171,8 +176,14 @@ namespace GitHub.Runner.Common
            public static readonly string UnsupportedStopCommandTokenDisabled = "You cannot use a endToken that is an empty string, the string 'pause-logging', or another workflow command. For more information see: https://docs.github.com/actions/learn-github-actions/workflow-commands-for-github-actions#example-stopping-and-starting-workflow-commands or opt into insecure command execution by setting the `ACTIONS_ALLOW_UNSECURE_STOPCOMMAND_TOKENS` environment variable to `true`.";
            public static readonly string UnsupportedSummarySize = "$GITHUB_STEP_SUMMARY upload aborted, supports content up to a size of {0}k, got {1}k. For more information see: https://docs.github.com/actions/using-workflows/workflow-commands-for-github-actions#adding-a-markdown-summary";
            public static readonly string SummaryUploadError = "$GITHUB_STEP_SUMMARY upload aborted, an error occurred when uploading the summary. For more information see: https://docs.github.com/actions/using-workflows/workflow-commands-for-github-actions#adding-a-markdown-summary";
+            public static readonly string DetectedNodeAfterEndOfLifeMessage = "Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: {0}. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.";
+            public static readonly string DeprecatedNodeDetectedAfterEndOfLifeActions = "DeprecatedNodeActionsMessageWarnings";
+            public static readonly string DeprecatedNodeVersion = "node16";
            public static readonly string EnforcedNode12DetectedAfterEndOfLife = "The following actions uses node12 which is deprecated and will be forced to run on node16: {0}. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/";
            public static readonly string EnforcedNode12DetectedAfterEndOfLifeEnvVariable = "Node16ForceActionsWarnings";
+            public static readonly string EnforcedNode16DetectedAfterEndOfLife = "The following actions use a deprecated Node.js version and will be forced to run on node20: {0}. For more info: https://github.blog/changelog/2024-03-07-github-actions-all-actions-will-run-on-node20-instead-of-node16-by-default/";
+            public static readonly string EnforcedNode16DetectedAfterEndOfLifeEnvVariable = "Node20ForceActionsWarnings";
+
        }

        public static class RunnerEvent
@@ -244,6 +255,7 @@ namespace GitHub.Runner.Common
                public static readonly string RunnerDebug = "ACTIONS_RUNNER_DEBUG";
                public static readonly string StepDebug = "ACTIONS_STEP_DEBUG";
                public static readonly string AllowActionsUseUnsecureNodeVersion = "ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION";
+                public static readonly string ManualForceActionsToNode20 = "FORCE_JAVASCRIPT_ACTIONS_TO_NODE20";
            }

            public static class Agent
@@ -254,6 +266,8 @@ namespace GitHub.Runner.Common
                public static readonly string ForcedInternalNodeVersion = "ACTIONS_RUNNER_FORCED_INTERNAL_NODE_VERSION";
                public static readonly string ForcedActionsNodeVersion = "ACTIONS_RUNNER_FORCE_ACTIONS_NODE_VERSION";
                public static readonly string PrintLogToStdout = "ACTIONS_RUNNER_PRINT_LOG_TO_STDOUT";
+                public static readonly string ActionArchiveCacheDirectory = "ACTIONS_RUNNER_ACTION_ARCHIVE_CACHE";
+                public static readonly string ManualForceActionsToNode20 = "FORCE_JAVASCRIPT_ACTIONS_TO_NODE20";
            }

            public static class System
--- a/src/Runner.Common/HostContext.cs
+++ b/src/Runner.Common/HostContext.cs
@@ -200,6 +200,10 @@ namespace GitHub.Runner.Common
            {
                _trace.Info($"No proxy settings were found based on environmental variables (http_proxy/https_proxy/HTTP_PROXY/HTTPS_PROXY)");
            }
+            else
+            {
+                _userAgents.Add(new ProductInfoHeaderValue("HttpProxyConfigured", bool.TrueString));
+            }

            if (StringUtil.ConvertToBoolean(Environment.GetEnvironmentVariable("GITHUB_ACTIONS_RUNNER_TLS_NO_VERIFY")))
            {
--- a/src/Runner.Common/JobServerQueue.cs
+++ b/src/Runner.Common/JobServerQueue.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Concurrent;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.IO;
 using System.Linq;
 using System.Threading;
@@ -14,10 +15,11 @@ namespace GitHub.Runner.Common
    [ServiceLocator(Default = typeof(JobServerQueue))]
    public interface IJobServerQueue : IRunnerService, IThrottlingReporter
    {
+        IList<JobTelemetry> JobTelemetries { get; }
        TaskCompletionSource<int> JobRecordUpdated { get; }
        event EventHandler<ThrottlingEventArgs> JobServerQueueThrottling;
        Task ShutdownAsync();
-        void Start(Pipelines.AgentJobRequestMessage jobRequest, bool resultServiceOnly = false);
+        void Start(Pipelines.AgentJobRequestMessage jobRequest, bool resultsServiceOnly = false);
        void QueueWebConsoleLine(Guid stepRecordId, string line, long? lineNumber = null);
        void QueueFileUpload(Guid timelineId, Guid timelineRecordId, string type, string name, string path, bool deleteSource);
        void QueueResultsUpload(Guid timelineRecordId, string name, string path, string type, bool deleteSource, bool finalize, bool firstBlock, long totalLines);
@@ -69,13 +71,19 @@ namespace GitHub.Runner.Common
        private Task[] _allDequeueTasks;
        private readonly TaskCompletionSource<int> _jobCompletionSource = new();
        private readonly TaskCompletionSource<int> _jobRecordUpdated = new();
+        private readonly List<JobTelemetry> _jobTelemetries = new();
        private bool _queueInProcess = false;
        private bool _resultsServiceOnly = false;
+        private int _resultsServiceExceptionsCount = 0;
+        private Stopwatch _resultsUploadTimer = new();
+        private Stopwatch _actionsUploadTimer = new();

        public TaskCompletionSource<int> JobRecordUpdated => _jobRecordUpdated;

        public event EventHandler<ThrottlingEventArgs> JobServerQueueThrottling;

+        public IList<JobTelemetry> JobTelemetries => _jobTelemetries;
+
        // Web console dequeue will start with process queue every 250ms for the first 60*4 times (~60 seconds).
        // Then the dequeue will happen every 500ms.
        // In this way, customer still can get instance live console output on job start,
@@ -87,6 +95,7 @@ namespace GitHub.Runner.Common
        private bool _firstConsoleOutputs = true;

        private bool _resultsClientInitiated = false;
+        private bool _enableTelemetry = false;
        private delegate Task ResultsFileUploadHandler(ResultsUploadFileInfo file);

        public override void Initialize(IHostContext hostContext)
@@ -96,14 +105,14 @@ namespace GitHub.Runner.Common
            _resultsServer = hostContext.GetService<IResultsServer>();
        }

-        public void Start(Pipelines.AgentJobRequestMessage jobRequest, bool resultServiceOnly = false)
+        public void Start(Pipelines.AgentJobRequestMessage jobRequest, bool resultsServiceOnly = false)
        {
            Trace.Entering();
-            _resultsServiceOnly = resultServiceOnly;
+            _resultsServiceOnly = resultsServiceOnly;

            var serviceEndPoint = jobRequest.Resources.Endpoints.Single(x => string.Equals(x.Name, WellKnownServiceEndpointNames.SystemVssConnection, StringComparison.OrdinalIgnoreCase));

-            if (!resultServiceOnly)
+            if (!resultsServiceOnly)
            {
                _jobServer.InitializeWebsocketClient(serviceEndPoint);
            }
@@ -119,17 +128,23 @@ namespace GitHub.Runner.Common
            {
                string liveConsoleFeedUrl = null;
                Trace.Info("Initializing results client");
-                if (resultServiceOnly
+                if (resultsServiceOnly
                    && serviceEndPoint.Data.TryGetValue("FeedStreamUrl", out var feedStreamUrl)
                    && !string.IsNullOrEmpty(feedStreamUrl))
                {
                    liveConsoleFeedUrl = feedStreamUrl;
                }
-
-                _resultsServer.InitializeResultsClient(new Uri(resultsReceiverEndpoint), liveConsoleFeedUrl, accessToken);
+                jobRequest.Variables.TryGetValue("system.github.results_upload_with_sdk", out VariableValue resultsUseSdkVariable);
+                _resultsServer.InitializeResultsClient(new Uri(resultsReceiverEndpoint), liveConsoleFeedUrl, accessToken, StringUtil.ConvertToBoolean(resultsUseSdkVariable?.Value));
                _resultsClientInitiated = true;
            }

+            // Enable telemetry if we have both results service and actions service
+            if (_resultsClientInitiated && !_resultsServiceOnly)
+            {
+                _enableTelemetry = true;
+            }
+
            if (_queueInProcess)
            {
                Trace.Info("No-opt, all queue process tasks are running.");
@@ -211,6 +226,12 @@ namespace GitHub.Runner.Common
            await _resultsServer.DisposeAsync();

            Trace.Info("All queue process tasks have been stopped, and all queues are drained.");
+            if (_enableTelemetry)
+            {
+                var uploadTimeComparison = $"Actions upload time: {_actionsUploadTimer.ElapsedMilliseconds} ms, Result upload time: {_resultsUploadTimer.ElapsedMilliseconds} ms";
+                Trace.Info(uploadTimeComparison);
+                _jobTelemetries.Add(new JobTelemetry() { Type = JobTelemetryType.General, Message = uploadTimeComparison });
+            }
        }

        public void QueueWebConsoleLine(Guid stepRecordId, string line, long? lineNumber)
@@ -456,6 +477,10 @@ namespace GitHub.Runner.Common
                    {
                        try
                        {
+                            if (_enableTelemetry)
+                            {
+                                _actionsUploadTimer.Start();
+                            }
                            await UploadFile(file);
                        }
                        catch (Exception ex)
@@ -471,6 +496,13 @@ namespace GitHub.Runner.Common
                            //    _fileUploadQueue.Enqueue(file);
                            //}
                        }
+                        finally
+                        {
+                            if (_enableTelemetry)
+                            {
+                                _actionsUploadTimer.Stop();
+                            }
+                        }
                    }

                    Trace.Info("Try to upload {0} log files or attachments, success rate: {1}/{0}.", filesToUpload.Count, filesToUpload.Count - errorCount);
@@ -517,10 +549,18 @@ namespace GitHub.Runner.Common
                    {
                        try
                        {
+                            if (_enableTelemetry)
+                            {
+                                _resultsUploadTimer.Start();
+                            }
                            if (String.Equals(file.Type, ChecksAttachmentType.StepSummary, StringComparison.OrdinalIgnoreCase))
                            {
                                await UploadSummaryFile(file);
                            }
+                            if (string.Equals(file.Type, CoreAttachmentType.ResultsDiagnosticLog, StringComparison.OrdinalIgnoreCase))
+                            {
+                                await UploadResultsDiagnosticLogsFile(file);
+                            }
                            else if (String.Equals(file.Type, CoreAttachmentType.ResultsLog, StringComparison.OrdinalIgnoreCase))
                            {
                                if (file.RecordId != _jobTimelineRecordId)
@@ -540,13 +580,22 @@ namespace GitHub.Runner.Common
                            Trace.Info("Catch exception during file upload to results, keep going since the process is best effort.");
                            Trace.Error(ex);
                            errorCount++;
-
-                            // If we hit any exceptions uploading to Results, let's skip any additional uploads to Results
+                            _resultsServiceExceptionsCount++;
+                            // If we hit any exceptions uploading to Results, let's skip any additional uploads to Results unless Results is serving logs
+                            if (!_resultsServiceOnly && _resultsServiceExceptionsCount > 3)
+                            {
                                _resultsClientInitiated = false;
-
                                SendResultsTelemetry(ex);
                            }
                        }
+                        finally
+                        {
+                            if (_enableTelemetry)
+                            {
+                                _resultsUploadTimer.Stop();
+                            }
+                        }
+                    }

                    Trace.Info("Tried to upload {0} file(s) to results, success rate: {1}/{0}.", filesToUpload.Count, filesToUpload.Count - errorCount);
                }
@@ -564,7 +613,7 @@ namespace GitHub.Runner.Common

        private void SendResultsTelemetry(Exception ex)
        {
-            var issue = new Issue() { Type = IssueType.Warning, Message = $"Caught exception with results. {ex.Message}" };
+            var issue = new Issue() { Type = IssueType.Warning, Message = $"Caught exception with results. {HostContext.SecretMasker.MaskSecrets(ex.Message)}" };
            issue.Data[Constants.Runner.InternalTelemetryIssueDataKey] = Constants.Runner.ResultsUploadFailure;

            var telemetryRecord = new TimelineRecord()
@@ -660,10 +709,14 @@ namespace GitHub.Runner.Common
                            {
                                Trace.Info("Catch exception during update steps, skip update Results.");
                                Trace.Error(e);
+                                _resultsServiceExceptionsCount++;
+                                // If we hit any exceptions uploading to Results, let's skip any additional uploads to Results unless Results is serving logs
+                                if (!_resultsServiceOnly && _resultsServiceExceptionsCount > 3)
+                                {
                                    _resultsClientInitiated = false;
-
                                    SendResultsTelemetry(e);
                                }
+                            }

                            if (_bufferedRetryRecords.Remove(update.TimelineId))
                            {
@@ -881,6 +934,17 @@ namespace GitHub.Runner.Common
            await UploadResultsFile(file, summaryHandler);
        }

+        private async Task UploadResultsDiagnosticLogsFile(ResultsUploadFileInfo file)
+        {
+            Trace.Info($"Starting to upload diagnostic logs file to results service {file.Name}, {file.Path}");
+            ResultsFileUploadHandler diagnosticLogsHandler = async (file) =>
+            {
+                await _resultsServer.CreateResultsDiagnosticLogsAsync(file.PlanId, file.JobId, file.Path, CancellationToken.None);
+            };
+
+            await UploadResultsFile(file, diagnosticLogsHandler);
+        }
+
        private async Task UploadResultsStepLogFile(ResultsUploadFileInfo file)
        {
            Trace.Info($"Starting upload of step log file to results service {file.Name}, {file.Path}");
--- a/src/Runner.Common/ResultsServer.cs
+++ b/src/Runner.Common/ResultsServer.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Net.Http;
 using System.Net.Http.Headers;
 using System.Net.WebSockets;
 using System.Security;
@@ -18,7 +19,7 @@ namespace GitHub.Runner.Common
    [ServiceLocator(Default = typeof(ResultServer))]
    public interface IResultsServer : IRunnerService, IAsyncDisposable
    {
-        void InitializeResultsClient(Uri uri, string liveConsoleFeedUrl, string token);
+        void InitializeResultsClient(Uri uri, string liveConsoleFeedUrl, string token, bool useSdk);

        Task<bool> AppendLiveConsoleFeedAsync(Guid scopeIdentifier, string hubName, Guid planId, Guid timelineId, Guid timelineRecordId, Guid stepId, IList<string> lines, long? startLine, CancellationToken cancellationToken);

@@ -34,6 +35,8 @@ namespace GitHub.Runner.Common

        Task UpdateResultsWorkflowStepsAsync(Guid scopeIdentifier, string hubName, Guid planId, Guid timelineId,
            IEnumerable<TimelineRecord> records, CancellationToken cancellationToken);
+
+        Task CreateResultsDiagnosticLogsAsync(string planId, string jobId, string file, CancellationToken cancellationToken);
    }

    public sealed class ResultServer : RunnerService, IResultsServer
@@ -50,10 +53,10 @@ namespace GitHub.Runner.Common
        private String _liveConsoleFeedUrl;
        private string _token;

-        public void InitializeResultsClient(Uri uri, string liveConsoleFeedUrl, string token)
+        public void InitializeResultsClient(Uri uri, string liveConsoleFeedUrl, string token, bool useSdk)
        {
-            var httpMessageHandler = HostContext.CreateHttpClientHandler();
-            this._resultsClient = new ResultsHttpClient(uri, httpMessageHandler, token, disposeHandler: true);
+            this._resultsClient = CreateHttpClient(uri, token, useSdk);
+
            _token = token;
            if (!string.IsNullOrEmpty(liveConsoleFeedUrl))
            {
@@ -62,6 +65,26 @@ namespace GitHub.Runner.Common
            }
        }

+        public ResultsHttpClient CreateHttpClient(Uri uri, string token, bool useSdk)
+        {
+            // Using default 100 timeout
+            RawClientHttpRequestSettings settings = VssUtil.GetHttpRequestSettings(null);
+
+            // Create retry handler
+            IEnumerable<DelegatingHandler> delegatingHandlers = new List<DelegatingHandler>();
+            if (settings.MaxRetryRequest > 0)
+            {
+                delegatingHandlers = new DelegatingHandler[] { new VssHttpRetryMessageHandler(settings.MaxRetryRequest) };
+            }
+
+            // Setup RawHttpMessageHandler without credentials
+            var httpMessageHandler = new RawHttpMessageHandler(new NoOpCredentials(null), settings);
+
+            var pipeline = HttpClientFactory.CreatePipeline(httpMessageHandler, delegatingHandlers);
+
+            return new ResultsHttpClient(uri, pipeline, token, disposeHandler: true, useSdk: useSdk);
+        }
+
        public Task CreateResultsStepSummaryAsync(string planId, string jobId, Guid stepId, string file,
            CancellationToken cancellationToken)
        {
@@ -120,6 +143,18 @@ namespace GitHub.Runner.Common
            throw new InvalidOperationException("Results client is not initialized.");
        }

+        public Task CreateResultsDiagnosticLogsAsync(string planId, string jobId, string file,
+            CancellationToken cancellationToken)
+        {
+            if (_resultsClient != null)
+            {
+                return _resultsClient.UploadResultsDiagnosticLogsAsync(planId, jobId, file,
+                    cancellationToken: cancellationToken);
+            }
+
+            throw new InvalidOperationException("Results client is not initialized.");
+        }
+
        public ValueTask DisposeAsync()
        {
            CloseWebSocket(WebSocketCloseStatus.NormalClosure, CancellationToken.None);
--- a/src/Runner.Common/RunServer.cs
+++ b/src/Runner.Common/RunServer.cs
@@ -5,6 +5,7 @@ using System.Threading.Tasks;
 using GitHub.Actions.RunService.WebApi;
 using GitHub.DistributedTask.Pipelines;
 using GitHub.DistributedTask.WebApi;
+using GitHub.Runner.Common.Util;
 using GitHub.Runner.Sdk;
 using GitHub.Services.Common;
 using Sdk.RSWebApi.Contracts;
@@ -60,8 +61,11 @@ namespace GitHub.Runner.Common
        {
            CheckConnection();
            return RetryRequest<AgentJobRequestMessage>(
-                async () => await _runServiceHttpClient.GetJobMessageAsync(requestUri, id, cancellationToken), cancellationToken,
-                shouldRetry: ex => ex is not TaskOrchestrationJobAlreadyAcquiredException);
+                async () => await _runServiceHttpClient.GetJobMessageAsync(requestUri, id, VarUtil.OS, cancellationToken), cancellationToken,
+                shouldRetry: ex =>
+                    ex is not TaskOrchestrationJobNotFoundException &&          // HTTP status 404
+                    ex is not TaskOrchestrationJobAlreadyAcquiredException &&   // HTTP status 409
+                    ex is not TaskOrchestrationJobUnprocessableException);      // HTTP status 422
        }

        public Task CompleteJobAsync(
--- a/src/Runner.Common/Runner.Common.csproj
+++ b/src/Runner.Common/Runner.Common.csproj
@@ -1,11 +1,11 @@
 <Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
    <OutputType>Library</OutputType>
    <RuntimeIdentifiers>win-x64;win-x86;linux-x64;linux-arm64;linux-arm;osx-x64;osx-arm64;win-arm64</RuntimeIdentifiers>
    <TargetLatestRuntimePatch>true</TargetLatestRuntimePatch>
-    <NoWarn>NU1701;NU1603</NoWarn>
+    <NoWarn>NU1701;NU1603;SYSLIB0050;SYSLIB0051</NoWarn>
    <Version>$(Version)</Version>
  </PropertyGroup>

@@ -15,11 +15,11 @@
  </ItemGroup>

  <ItemGroup>
-    <PackageReference Include="Microsoft.Win32.Registry" Version="4.4.0" />
+    <PackageReference Include="Microsoft.Win32.Registry" Version="5.0.0" />
    <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
-    <PackageReference Include="System.Security.Cryptography.ProtectedData" Version="4.4.0" />
-    <PackageReference Include="System.Text.Encoding.CodePages" Version="4.4.0" />
-    <PackageReference Include="System.Threading.Channels" Version="4.4.0" />
+    <PackageReference Include="System.Security.Cryptography.ProtectedData" Version="8.0.0" />
+    <PackageReference Include="System.Text.Encoding.CodePages" Version="8.0.0" />
+    <PackageReference Include="System.Threading.Channels" Version="8.0.0" />
  </ItemGroup>

  <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
--- a/src/Runner.Common/RunnerDotcomServer.cs
+++ b/src/Runner.Common/RunnerDotcomServer.cs
@@ -224,7 +224,7 @@ namespace GitHub.Runner.Common
                    }
                    catch (Exception ex) when (retry < maxRetryAttemptsCount && responseStatus != System.Net.HttpStatusCode.NotFound)
                    {
-                        Trace.Error($"{errorMessage} -- Atempt: {retry}");
+                        Trace.Error($"{errorMessage} -- Attempt: {retry}");
                        Trace.Error(ex);
                    }
                }
--- a/src/Runner.Common/RunnerServer.cs
+++ b/src/Runner.Common/RunnerServer.cs
@@ -38,7 +38,7 @@ namespace GitHub.Runner.Common
        Task<TaskAgentSession> CreateAgentSessionAsync(Int32 poolId, TaskAgentSession session, CancellationToken cancellationToken);
        Task DeleteAgentMessageAsync(Int32 poolId, Int64 messageId, Guid sessionId, CancellationToken cancellationToken);
        Task DeleteAgentSessionAsync(Int32 poolId, Guid sessionId, CancellationToken cancellationToken);
-        Task<TaskAgentMessage> GetAgentMessageAsync(Int32 poolId, Guid sessionId, Int64? lastMessageId, TaskAgentStatus status, string runnerVersion, CancellationToken cancellationToken);
+        Task<TaskAgentMessage> GetAgentMessageAsync(Int32 poolId, Guid sessionId, Int64? lastMessageId, TaskAgentStatus status, string runnerVersion, string os, string architecture, bool disableUpdate, CancellationToken cancellationToken);

        // job request
        Task<TaskAgentJobRequest> GetAgentRequestAsync(int poolId, long requestId, CancellationToken cancellationToken);
@@ -272,10 +272,10 @@ namespace GitHub.Runner.Common
            return _messageTaskAgentClient.DeleteAgentSessionAsync(poolId, sessionId, cancellationToken: cancellationToken);
        }

-        public Task<TaskAgentMessage> GetAgentMessageAsync(Int32 poolId, Guid sessionId, Int64? lastMessageId, TaskAgentStatus status, string runnerVersion, CancellationToken cancellationToken)
+        public Task<TaskAgentMessage> GetAgentMessageAsync(Int32 poolId, Guid sessionId, Int64? lastMessageId, TaskAgentStatus status, string runnerVersion, string os, string architecture, bool disableUpdate, CancellationToken cancellationToken)
        {
            CheckConnection(RunnerConnectionType.MessageQueue);
-            return _messageTaskAgentClient.GetMessageAsync(poolId, sessionId, lastMessageId, status, runnerVersion, cancellationToken: cancellationToken);
+            return _messageTaskAgentClient.GetMessageAsync(poolId, sessionId, lastMessageId, status, runnerVersion, os, architecture, disableUpdate, cancellationToken: cancellationToken);
        }

        //-----------------------------------------------------------------
--- a/src/Runner.Listener/BrokerMessageListener.cs
+++ b/src/Runner.Listener/BrokerMessageListener.cs
@@ -24,7 +24,15 @@ namespace GitHub.Runner.Listener
        private TimeSpan _getNextMessageRetryInterval;
        private TaskAgentStatus runnerStatus = TaskAgentStatus.Online;
        private CancellationTokenSource _getMessagesTokenSource;
+        private VssCredentials _creds;
+        private TaskAgentSession _session;
        private IBrokerServer _brokerServer;
+        private readonly Dictionary<string, int> _sessionCreationExceptionTracker = new();
+        private bool _accessTokenRevoked = false;
+        private readonly TimeSpan _sessionCreationRetryInterval = TimeSpan.FromSeconds(30);
+        private readonly TimeSpan _sessionConflictRetryLimit = TimeSpan.FromMinutes(4);
+        private readonly TimeSpan _clockSkewRetryLimit = TimeSpan.FromMinutes(30);
+

        public override void Initialize(IHostContext hostContext)
        {
@@ -34,15 +42,140 @@ namespace GitHub.Runner.Listener
            _brokerServer = HostContext.GetService<IBrokerServer>();
        }

-        public async Task<Boolean> CreateSessionAsync(CancellationToken token)
+        public async Task<CreateSessionResult> CreateSessionAsync(CancellationToken token)
        {
-            await RefreshBrokerConnection();
-            return await Task.FromResult(true);
+            Trace.Entering();
+
+            // Settings
+            var configManager = HostContext.GetService<IConfigurationManager>();
+            _settings = configManager.LoadSettings();
+            var serverUrl = _settings.ServerUrlV2;
+            Trace.Info(_settings);
+
+            if (string.IsNullOrEmpty(_settings.ServerUrlV2))
+            {
+                throw new InvalidOperationException("ServerUrlV2 is not set");
+            }
+
+            // Create connection.
+            Trace.Info("Loading Credentials");
+            var credMgr = HostContext.GetService<ICredentialManager>();
+            _creds = credMgr.LoadCredentials();
+
+            var agent = new TaskAgentReference
+            {
+                Id = _settings.AgentId,
+                Name = _settings.AgentName,
+                Version = BuildConstants.RunnerPackage.Version,
+                OSDescription = RuntimeInformation.OSDescription,
+            };
+            string sessionName = $"{Environment.MachineName ?? "RUNNER"}";
+            var taskAgentSession = new TaskAgentSession(sessionName, agent);
+
+            string errorMessage = string.Empty;
+            bool encounteringError = false;
+
+            while (true)
+            {
+                token.ThrowIfCancellationRequested();
+                Trace.Info($"Attempt to create session.");
+                try
+                {
+                    Trace.Info("Connecting to the Broker Server...");
+                    await _brokerServer.ConnectAsync(new Uri(serverUrl), _creds);
+                    Trace.Info("VssConnection created");
+
+                    _term.WriteLine();
+                    _term.WriteSuccessMessage("Connected to GitHub");
+                    _term.WriteLine();
+
+                    _session = await _brokerServer.CreateSessionAsync(taskAgentSession, token);
+
+                    Trace.Info($"Session created.");
+                    if (encounteringError)
+                    {
+                        _term.WriteLine($"{DateTime.UtcNow:u}: Runner reconnected.");
+                        _sessionCreationExceptionTracker.Clear();
+                        encounteringError = false;
+                    }
+
+                    return CreateSessionResult.Success;
+                }
+                catch (OperationCanceledException) when (token.IsCancellationRequested)
+                {
+                    Trace.Info("Session creation has been cancelled.");
+                    throw;
+                }
+                catch (TaskAgentAccessTokenExpiredException)
+                {
+                    Trace.Info("Runner OAuth token has been revoked. Session creation failed.");
+                    _accessTokenRevoked = true;
+                    throw;
+                }
+                catch (Exception ex)
+                {
+                    Trace.Error("Catch exception during create session.");
+                    Trace.Error(ex);
+
+                    if (ex is VssOAuthTokenRequestException vssOAuthEx && _creds.Federated is VssOAuthCredential vssOAuthCred)
+                    {
+                        // "invalid_client" means the runner registration has been deleted from the server.
+                        if (string.Equals(vssOAuthEx.Error, "invalid_client", StringComparison.OrdinalIgnoreCase))
+                        {
+                            _term.WriteError("Failed to create a session. The runner registration has been deleted from the server, please re-configure. Runner registrations are automatically deleted for runners that have not connected to the service recently.");
+                            return CreateSessionResult.Failure;
+                        }
+
+                        // Check whether we get 401 because the runner registration already removed by the service.
+                        // If the runner registration get deleted, we can't exchange oauth token.
+                        Trace.Error("Test oauth app registration.");
+                        var oauthTokenProvider = new VssOAuthTokenProvider(vssOAuthCred, new Uri(serverUrl));
+                        var authError = await oauthTokenProvider.ValidateCredentialAsync(token);
+                        if (string.Equals(authError, "invalid_client", StringComparison.OrdinalIgnoreCase))
+                        {
+                            _term.WriteError("Failed to create a session. The runner registration has been deleted from the server, please re-configure. Runner registrations are automatically deleted for runners that have not connected to the service recently.");
+                            return CreateSessionResult.Failure;
+                        }
+                    }
+
+                    if (!IsSessionCreationExceptionRetriable(ex))
+                    {
+                        _term.WriteError($"Failed to create session. {ex.Message}");
+                        if (ex is TaskAgentSessionConflictException)
+                        {
+                            return CreateSessionResult.SessionConflict;
+                        }
+                        return CreateSessionResult.Failure;
+                    }
+
+                    if (!encounteringError) //print the message only on the first error
+                    {
+                        _term.WriteError($"{DateTime.UtcNow:u}: Runner connect error: {ex.Message}. Retrying until reconnected.");
+                        encounteringError = true;
+                    }
+
+                    Trace.Info("Sleeping for {0} seconds before retrying.", _sessionCreationRetryInterval.TotalSeconds);
+                    await HostContext.Delay(_sessionCreationRetryInterval, token);
+                }
+            }
        }

        public async Task DeleteSessionAsync()
        {
-            await Task.CompletedTask;
+            if (_session != null && _session.SessionId != Guid.Empty)
+            {
+                if (!_accessTokenRevoked)
+                {
+                    using (var ts = new CancellationTokenSource(TimeSpan.FromSeconds(30)))
+                    {
+                        await _brokerServer.DeleteSessionAsync(ts.Token);
+                    }
+                }
+                else
+                {
+                    Trace.Warning("Runner OAuth token has been revoked. Skip deleting session.");
+                }
+            }
        }

        public void OnJobStatus(object sender, JobStatusEventArgs e)
@@ -73,7 +206,13 @@ namespace GitHub.Runner.Listener
                _getMessagesTokenSource = CancellationTokenSource.CreateLinkedTokenSource(token);
                try
                {
-                    message = await _brokerServer.GetRunnerMessageAsync(_getMessagesTokenSource.Token, runnerStatus, BuildConstants.RunnerPackage.Version);
+                    message = await _brokerServer.GetRunnerMessageAsync(_session.SessionId,
+                                                                        runnerStatus,
+                                                                        BuildConstants.RunnerPackage.Version,
+                                                                        VarUtil.OS,
+                                                                        VarUtil.OSArchitecture,
+                                                                        _settings.DisableUpdate,
+                                                                        _getMessagesTokenSource.Token);

                    if (message == null)
                    {
@@ -138,7 +277,7 @@ namespace GitHub.Runner.Listener
                        }

                        // re-create VssConnection before next retry
-                        await RefreshBrokerConnection();
+                        await RefreshBrokerConnectionAsync();

                        Trace.Info("Sleeping for {0} seconds before retrying.", _getNextMessageRetryInterval.TotalSeconds);
                        await HostContext.Delay(_getNextMessageRetryInterval, token);
@@ -168,6 +307,11 @@ namespace GitHub.Runner.Listener
            }
        }

+        public async Task RefreshListenerTokenAsync(CancellationToken cancellationToken)
+        {
+            await RefreshBrokerConnectionAsync();
+        }
+
        public async Task DeleteMessageAsync(TaskAgentMessage message)
        {
            await Task.CompletedTask;
@@ -191,12 +335,84 @@ namespace GitHub.Runner.Listener
            }
        }

-        private async Task RefreshBrokerConnection()
+        private bool IsSessionCreationExceptionRetriable(Exception ex)
+        {
+            if (ex is TaskAgentNotFoundException)
+            {
+                Trace.Info("The runner no longer exists on the server. Stopping the runner.");
+                _term.WriteError("The runner no longer exists on the server. Please reconfigure the runner.");
+                return false;
+            }
+            else if (ex is TaskAgentSessionConflictException)
+            {
+                Trace.Info("The session for this runner already exists.");
+                _term.WriteError("A session for this runner already exists.");
+                if (_sessionCreationExceptionTracker.ContainsKey(nameof(TaskAgentSessionConflictException)))
+                {
+                    _sessionCreationExceptionTracker[nameof(TaskAgentSessionConflictException)]++;
+                    if (_sessionCreationExceptionTracker[nameof(TaskAgentSessionConflictException)] * _sessionCreationRetryInterval.TotalSeconds >= _sessionConflictRetryLimit.TotalSeconds)
+                    {
+                        Trace.Info("The session conflict exception have reached retry limit.");
+                        _term.WriteError($"Stop retry on SessionConflictException after retried for {_sessionConflictRetryLimit.TotalSeconds} seconds.");
+                        return false;
+                    }
+                }
+                else
+                {
+                    _sessionCreationExceptionTracker[nameof(TaskAgentSessionConflictException)] = 1;
+                }
+
+                Trace.Info("The session conflict exception haven't reached retry limit.");
+                return true;
+            }
+            else if (ex is VssOAuthTokenRequestException && ex.Message.Contains("Current server time is"))
+            {
+                Trace.Info("Local clock might be skewed.");
+                _term.WriteError("The local machine's clock may be out of sync with the server time by more than five minutes. Please sync your clock with your domain or internet time and try again.");
+                if (_sessionCreationExceptionTracker.ContainsKey(nameof(VssOAuthTokenRequestException)))
+                {
+                    _sessionCreationExceptionTracker[nameof(VssOAuthTokenRequestException)]++;
+                    if (_sessionCreationExceptionTracker[nameof(VssOAuthTokenRequestException)] * _sessionCreationRetryInterval.TotalSeconds >= _clockSkewRetryLimit.TotalSeconds)
+                    {
+                        Trace.Info("The OAuth token request exception have reached retry limit.");
+                        _term.WriteError($"Stopped retrying OAuth token request exception after {_clockSkewRetryLimit.TotalSeconds} seconds.");
+                        return false;
+                    }
+                }
+                else
+                {
+                    _sessionCreationExceptionTracker[nameof(VssOAuthTokenRequestException)] = 1;
+                }
+
+                Trace.Info("The OAuth token request exception haven't reached retry limit.");
+                return true;
+            }
+            else if (ex is TaskAgentPoolNotFoundException ||
+                     ex is AccessDeniedException ||
+                     ex is VssUnauthorizedException)
+            {
+                Trace.Info($"Non-retriable exception: {ex.Message}");
+                return false;
+            }
+
+            else if (ex is InvalidOperationException)
+            {
+                Trace.Info($"Non-retriable exception: {ex.Message}");
+                return false;
+            }
+            else
+            {
+                Trace.Info($"Retriable exception: {ex.Message}");
+                return true;
+            }
+        }
+
+        private async Task RefreshBrokerConnectionAsync()
        {
            var configManager = HostContext.GetService<IConfigurationManager>();
            _settings = configManager.LoadSettings();

-            if (_settings.ServerUrlV2 == null)
+            if (string.IsNullOrEmpty(_settings.ServerUrlV2))
            {
                throw new InvalidOperationException("ServerUrlV2 is not set");
            }
--- a/src/Runner.Listener/Checks/ActionsCheck.cs
+++ b/src/Runner.Listener/Checks/ActionsCheck.cs
@@ -39,6 +39,7 @@ namespace GitHub.Runner.Listener.Check
            string githubApiUrl = null;
            string actionsTokenServiceUrl = null;
            string actionsPipelinesServiceUrl = null;
+            string resultsReceiverServiceUrl = null;
            var urlBuilder = new UriBuilder(url);
            if (UrlUtil.IsHostedServer(urlBuilder))
            {
@@ -47,6 +48,7 @@ namespace GitHub.Runner.Listener.Check
                githubApiUrl = urlBuilder.Uri.AbsoluteUri;
                actionsTokenServiceUrl = "https://vstoken.actions.githubusercontent.com/_apis/health";
                actionsPipelinesServiceUrl = "https://pipelines.actions.githubusercontent.com/_apis/health";
+                resultsReceiverServiceUrl = "https://results-receiver.actions.githubusercontent.com/health";
            }
            else
            {
@@ -56,13 +58,31 @@ namespace GitHub.Runner.Listener.Check
                actionsTokenServiceUrl = urlBuilder.Uri.AbsoluteUri;
                urlBuilder.Path = "_services/pipelines/_apis/health";
                actionsPipelinesServiceUrl = urlBuilder.Uri.AbsoluteUri;
+                resultsReceiverServiceUrl = string.Empty; // we don't have Results service in GHES yet.
            }

+            var codeLoadUrlBuilder = new UriBuilder(url);
+            codeLoadUrlBuilder.Host = $"codeload.{codeLoadUrlBuilder.Host}";
+            codeLoadUrlBuilder.Path = "_ping";
+
            // check github api
            checkTasks.Add(CheckUtil.CheckDns(githubApiUrl));
            checkTasks.Add(CheckUtil.CheckPing(githubApiUrl));
            checkTasks.Add(HostContext.CheckHttpsGetRequests(githubApiUrl, pat, expectedHeader: "X-GitHub-Request-Id"));

+            // check github codeload
+            checkTasks.Add(CheckUtil.CheckDns(codeLoadUrlBuilder.Uri.AbsoluteUri));
+            checkTasks.Add(CheckUtil.CheckPing(codeLoadUrlBuilder.Uri.AbsoluteUri));
+            checkTasks.Add(HostContext.CheckHttpsGetRequests(codeLoadUrlBuilder.Uri.AbsoluteUri, pat, expectedHeader: "X-GitHub-Request-Id"));
+
+            // check results-receiver service
+            if (!string.IsNullOrEmpty(resultsReceiverServiceUrl))
+            {
+                checkTasks.Add(CheckUtil.CheckDns(resultsReceiverServiceUrl));
+                checkTasks.Add(CheckUtil.CheckPing(resultsReceiverServiceUrl));
+                checkTasks.Add(HostContext.CheckHttpsGetRequests(resultsReceiverServiceUrl, pat, expectedHeader: "X-GitHub-Request-Id"));
+            }
+
            // check actions token service
            checkTasks.Add(CheckUtil.CheckDns(actionsTokenServiceUrl));
            checkTasks.Add(CheckUtil.CheckPing(actionsTokenServiceUrl));
--- a/src/Runner.Listener/Configuration/ConfigurationManager.cs
+++ b/src/Runner.Listener/Configuration/ConfigurationManager.cs
@@ -248,7 +248,7 @@ namespace GitHub.Runner.Listener.Configuration
                }
                else
                {
-                    agents = await _runnerServer.GetAgentsAsync(runnerSettings.PoolId, runnerSettings.AgentName);
+                    agents = await _runnerServer.GetAgentsAsync(runnerSettings.AgentName);
                }

                Trace.Verbose("Returns {0} agents", agents.Count);
@@ -744,7 +744,7 @@ namespace GitHub.Runner.Listener.Configuration
                    catch (Exception ex) when (retryCount < 2 && responseStatus != System.Net.HttpStatusCode.NotFound)
                    {
                        retryCount++;
-                        Trace.Error($"Failed to get JIT runner token -- Atempt: {retryCount}");
+                        Trace.Error($"Failed to get JIT runner token -- Attempt: {retryCount}");
                        Trace.Error(ex);
                    }
                }
@@ -807,7 +807,7 @@ namespace GitHub.Runner.Listener.Configuration
                    catch (Exception ex) when (retryCount < 2 && responseStatus != System.Net.HttpStatusCode.NotFound)
                    {
                        retryCount++;
-                        Trace.Error($"Failed to get tenant credentials -- Atempt: {retryCount}");
+                        Trace.Error($"Failed to get tenant credentials -- Attempt: {retryCount}");
                        Trace.Error(ex);
                    }
                }
--- a/src/Runner.Listener/Configuration/NativeWindowsServiceHelper.cs
+++ b/src/Runner.Listener/Configuration/NativeWindowsServiceHelper.cs
@@ -514,9 +514,25 @@ namespace GitHub.Runner.Listener.Configuration
                failureActions.Add(new FailureAction(RecoverAction.Restart, 60000));

                // Lock the Service Database
-                svcLock = LockServiceDatabase(scmHndl);
-                if (svcLock.ToInt64() <= 0)
+                int svcLockRetries = 10;
+                int svcLockRetryTimeout = 5000;
+                while (true)
                {
+                    svcLock = LockServiceDatabase(scmHndl);
+                    if (svcLock.ToInt64() > 0)
+                    {
+                        break;
+                    }
+
+                    _term.WriteLine("Retrying Lock Service Database...");
+
+                    svcLockRetries--;
+                    if (svcLockRetries > 0)
+                    {
+                        Thread.Sleep(svcLockRetryTimeout);
+                        continue;
+                    }
+
                    throw new Exception("Failed to Lock Service Database for Write");
                }

--- a/src/Runner.Listener/Configuration/RSAEncryptedFileKeyManager.cs
+++ b/src/Runner.Listener/Configuration/RSAEncryptedFileKeyManager.cs
@@ -1,4 +1,5 @@
 #if OS_WINDOWS
+#pragma warning disable CA1416
 using System.IO;
 using System.Security.Cryptography;
 using System.Text;
@@ -84,4 +85,5 @@ namespace GitHub.Runner.Listener.Configuration
        }
    }
 }
+#pragma warning restore CA1416
 #endif
--- a/src/Runner.Listener/ErrorThrottler.cs
+++ b/src/Runner.Listener/ErrorThrottler.cs
@@ -0,0 +1,44 @@
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+using GitHub.Runner.Common;
+using GitHub.Services.Common;
+
+namespace GitHub.Runner.Listener
+{
+    [ServiceLocator(Default = typeof(ErrorThrottler))]
+    public interface IErrorThrottler : IRunnerService
+    {
+        void Reset();
+        Task IncrementAndWaitAsync(CancellationToken token);
+    }
+
+    public sealed class ErrorThrottler : RunnerService, IErrorThrottler
+    {
+        internal static readonly TimeSpan MinBackoff = TimeSpan.FromSeconds(1);
+        internal static readonly TimeSpan MaxBackoff = TimeSpan.FromMinutes(1);
+        internal static readonly TimeSpan BackoffCoefficient = TimeSpan.FromSeconds(1);
+        private int _count = 0;
+
+        public void Reset()
+        {
+            _count = 0;
+        }
+
+        public async Task IncrementAndWaitAsync(CancellationToken token)
+        {
+            if (++_count <= 1)
+            {
+                return;
+            }
+
+            TimeSpan backoff = BackoffTimerHelper.GetExponentialBackoff(
+                attempt: _count - 2, // 0-based attempt
+                minBackoff: MinBackoff,
+                maxBackoff: MaxBackoff,
+                deltaBackoff: BackoffCoefficient);
+            Trace.Warning($"Back off {backoff.TotalSeconds} seconds before next attempt. Current consecutive error count: {_count}");
+            await HostContext.Delay(backoff, token);
+        }
+    }
+}
--- a/src/Runner.Listener/JobDispatcher.cs
+++ b/src/Runner.Listener/JobDispatcher.cs
@@ -98,7 +98,7 @@ namespace GitHub.Runner.Listener
                Guid dispatchedJobId = _jobDispatchedQueue.Dequeue();
                if (_jobInfos.TryGetValue(dispatchedJobId, out currentDispatch))
                {
-                    Trace.Verbose($"Retrive previous WorkerDispather for job {currentDispatch.JobId}.");
+                    Trace.Verbose($"Retrive previous WorkerDispatcher for job {currentDispatch.JobId}.");
                }
            }

@@ -162,12 +162,12 @@ namespace GitHub.Runner.Listener
                dispatchedJobId = _jobDispatchedQueue.Dequeue();
                if (_jobInfos.TryGetValue(dispatchedJobId, out currentDispatch))
                {
-                    Trace.Verbose($"Retrive previous WorkerDispather for job {currentDispatch.JobId}.");
+                    Trace.Verbose($"Retrive previous WorkerDispatcher for job {currentDispatch.JobId}.");
                }
            }
            else
            {
-                Trace.Verbose($"There is no running WorkerDispather needs to await.");
+                Trace.Verbose($"There is no running WorkerDispatcher needs to await.");
            }

            if (currentDispatch != null)
@@ -176,7 +176,7 @@ namespace GitHub.Runner.Listener
                {
                    try
                    {
-                        Trace.Info($"Waiting WorkerDispather for job {currentDispatch.JobId} run to finish.");
+                        Trace.Info($"Waiting WorkerDispatcher for job {currentDispatch.JobId} run to finish.");
                        await currentDispatch.WorkerDispatch;
                        Trace.Info($"Job request {currentDispatch.JobId} processed succeed.");
                    }
@@ -190,7 +190,7 @@ namespace GitHub.Runner.Listener
                        WorkerDispatcher workerDispatcher;
                        if (_jobInfos.TryRemove(currentDispatch.JobId, out workerDispatcher))
                        {
-                            Trace.Verbose($"Remove WorkerDispather from {nameof(_jobInfos)} dictionary for job {currentDispatch.JobId}.");
+                            Trace.Verbose($"Remove WorkerDispatcher from {nameof(_jobInfos)} dictionary for job {currentDispatch.JobId}.");
                            workerDispatcher.Dispose();
                        }
                    }
@@ -209,7 +209,7 @@ namespace GitHub.Runner.Listener
                {
                    try
                    {
-                        Trace.Info($"Ensure WorkerDispather for job {currentDispatch.JobId} run to finish, cancel any running job.");
+                        Trace.Info($"Ensure WorkerDispatcher for job {currentDispatch.JobId} run to finish, cancel any running job.");
                        await EnsureDispatchFinished(currentDispatch, cancelRunningJob: true);
                    }
                    catch (Exception ex)
@@ -222,7 +222,7 @@ namespace GitHub.Runner.Listener
                        WorkerDispatcher workerDispatcher;
                        if (_jobInfos.TryRemove(currentDispatch.JobId, out workerDispatcher))
                        {
-                            Trace.Verbose($"Remove WorkerDispather from {nameof(_jobInfos)} dictionary for job {currentDispatch.JobId}.");
+                            Trace.Verbose($"Remove WorkerDispatcher from {nameof(_jobInfos)} dictionary for job {currentDispatch.JobId}.");
                            workerDispatcher.Dispose();
                        }
                    }
@@ -327,7 +327,7 @@ namespace GitHub.Runner.Listener
                WorkerDispatcher workerDispatcher;
                if (_jobInfos.TryRemove(jobDispatch.JobId, out workerDispatcher))
                {
-                    Trace.Verbose($"Remove WorkerDispather from {nameof(_jobInfos)} dictionary for job {jobDispatch.JobId}.");
+                    Trace.Verbose($"Remove WorkerDispatcher from {nameof(_jobInfos)} dictionary for job {jobDispatch.JobId}.");
                    workerDispatcher.Dispose();
                }
            }
@@ -546,13 +546,27 @@ namespace GitHub.Runner.Listener
                                    Trace.Info($"Return code {returnCode} indicate worker encounter an unhandled exception or app crash, attach worker stdout/stderr to JobRequest result.");

                                    var jobServer = await InitializeJobServerAsync(systemConnection);
-                                    await LogWorkerProcessUnhandledException(jobServer, message, detailInfo);
-
+                                    var unhandledExceptionIssue = new Issue() { Type = IssueType.Error, Message = detailInfo };
+                                    unhandledExceptionIssue.Data[Constants.Runner.InternalTelemetryIssueDataKey] = Constants.Runner.WorkerCrash;
+                                    switch (jobServer)
+                                    {
+                                        case IJobServer js:
+                                            {
+                                                await LogWorkerProcessUnhandledException(js, message, unhandledExceptionIssue);
                                                // Go ahead to finish the job with result 'Failed' if the STDERR from worker is System.IO.IOException, since it typically means we are running out of disk space.
                                                if (detailInfo.Contains(typeof(System.IO.IOException).ToString(), StringComparison.OrdinalIgnoreCase))
                                                {
                                                    Trace.Info($"Finish job with result 'Failed' due to IOException.");
-                                        await ForceFailJob(jobServer, message, detailInfo);
+                                                    await ForceFailJob(js, message);
+                                                }
+
+                                                break;
+                                            }
+                                        case IRunServer rs:
+                                            await ForceFailJob(rs, message, unhandledExceptionIssue);
+                                            break;
+                                        default:
+                                            throw new NotSupportedException($"JobServer type '{jobServer.GetType().Name}' is not supported.");
                                    }
                                }

@@ -629,6 +643,20 @@ namespace GitHub.Runner.Listener
                                    Trace.Info("worker process has been killed.");
                                }
                            }
+                            catch (Exception ex)
+                            {
+                                // message send failed, this might indicate worker process is already exited or stuck.
+                                Trace.Info($"Job cancel message sending for job {message.JobId} failed, kill running worker. {ex}");
+                                workerProcessCancelTokenSource.Cancel();
+                                try
+                                {
+                                    await workerProcessTask;
+                                }
+                                catch (OperationCanceledException)
+                                {
+                                    Trace.Info("worker process has been killed.");
+                                }
+                            }

                            // wait worker to exit
                            // if worker doesn't exit within timeout, then kill worker.
@@ -1117,9 +1145,7 @@ namespace GitHub.Runner.Listener
        }

        // log an error issue to job level timeline record
-        private async Task LogWorkerProcessUnhandledException(IRunnerService server, Pipelines.AgentJobRequestMessage message, string detailInfo)
-        {
-            if (server is IJobServer jobServer)
+        private async Task LogWorkerProcessUnhandledException(IJobServer jobServer, Pipelines.AgentJobRequestMessage message, Issue issue)
        {
            try
            {
@@ -1129,10 +1155,13 @@ namespace GitHub.Runner.Listener
                TimelineRecord jobRecord = timeline.Records.FirstOrDefault(x => x.Id == message.JobId && x.RecordType == "Job");
                ArgUtil.NotNull(jobRecord, nameof(jobRecord));

-                    var unhandledExceptionIssue = new Issue() { Type = IssueType.Error, Message = detailInfo };
-                    unhandledExceptionIssue.Data[Constants.Runner.InternalTelemetryIssueDataKey] = Constants.Runner.WorkerCrash;
                jobRecord.ErrorCount++;
-                    jobRecord.Issues.Add(unhandledExceptionIssue);
+                jobRecord.Issues.Add(issue);
+
+                Trace.Info("Mark the job as failed since the worker crashed");
+                jobRecord.Result = TaskResult.Failed;
+                // mark the job as completed so service will pickup the result
+                jobRecord.State = TimelineRecordState.Completed;

                await jobServer.UpdateTimelineRecordsAsync(message.Plan.ScopeIdentifier, message.Plan.PlanType, message.Plan.PlanId, message.Timeline.Id, new TimelineRecord[] { jobRecord }, CancellationToken.None);
            }
@@ -1142,17 +1171,9 @@ namespace GitHub.Runner.Listener
                Trace.Error(ex);
            }
        }
-            else
-            {
-                Trace.Info("Job server does not support handling unhandled exception yet, error message: {0}", detailInfo);
-                return;
-            }
-        }

        // raise job completed event to fail the job.
-        private async Task ForceFailJob(IRunnerService server, Pipelines.AgentJobRequestMessage message, string detailInfo)
-        {
-            if (server is IJobServer jobServer)
+        private async Task ForceFailJob(IJobServer jobServer, Pipelines.AgentJobRequestMessage message)
        {
            try
            {
@@ -1165,16 +1186,16 @@ namespace GitHub.Runner.Listener
                Trace.Error(ex);
            }
        }
-            else if (server is IRunServer runServer)
+
+        private async Task ForceFailJob(IRunServer runServer, Pipelines.AgentJobRequestMessage message, Issue issue)
        {
            try
            {
-                    var unhandledExceptionIssue = new Issue() { Type = IssueType.Error, Message = detailInfo };
-                    var unhandledAnnotation = unhandledExceptionIssue.ToAnnotation();
+                var annotation = issue.ToAnnotation();
                var jobAnnotations = new List<Annotation>();
-                    if (unhandledAnnotation.HasValue)
+                if (annotation.HasValue)
                {
-                        jobAnnotations.Add(unhandledAnnotation.Value);
+                    jobAnnotations.Add(annotation.Value);
                }

                await runServer.CompleteJobAsync(message.Plan.PlanId, message.JobId, TaskResult.Failed, outputs: null, stepResults: null, jobAnnotations: jobAnnotations, environmentUrl: null, CancellationToken.None);
@@ -1185,11 +1206,6 @@ namespace GitHub.Runner.Listener
                Trace.Error(ex);
            }
        }
-            else
-            {
-                throw new NotSupportedException($"Server type {server.GetType().FullName} is not supported.");
-            }
-        }

        private async Task<IRunnerService> InitializeJobServerAsync(ServiceEndpoint systemConnection)
        {
--- a/src/Runner.Listener/MessageListener.cs
+++ b/src/Runner.Listener/MessageListener.cs
@@ -9,20 +9,31 @@ using System.Threading;
 using System.Threading.Tasks;
 using GitHub.DistributedTask.WebApi;
 using GitHub.Runner.Common;
+using GitHub.Runner.Common.Util;
 using GitHub.Runner.Listener.Configuration;
 using GitHub.Runner.Sdk;
 using GitHub.Services.Common;
 using GitHub.Services.OAuth;
+using GitHub.Services.WebApi;

 namespace GitHub.Runner.Listener
 {
+    public enum CreateSessionResult
+    {
+        Success,
+        Failure,
+        SessionConflict
+    }
+
    [ServiceLocator(Default = typeof(MessageListener))]
    public interface IMessageListener : IRunnerService
    {
-        Task<Boolean> CreateSessionAsync(CancellationToken token);
+        Task<CreateSessionResult> CreateSessionAsync(CancellationToken token);
        Task DeleteSessionAsync();
        Task<TaskAgentMessage> GetNextMessageAsync(CancellationToken token);
        Task DeleteMessageAsync(TaskAgentMessage message);
+
+        Task RefreshListenerTokenAsync(CancellationToken token);
        void OnJobStatus(object sender, JobStatusEventArgs e);
    }

@@ -32,6 +43,7 @@ namespace GitHub.Runner.Listener
        private RunnerSettings _settings;
        private ITerminal _term;
        private IRunnerServer _runnerServer;
+        private IBrokerServer _brokerServer;
        private TaskAgentSession _session;
        private TimeSpan _getNextMessageRetryInterval;
        private bool _accessTokenRevoked = false;
@@ -41,6 +53,9 @@ namespace GitHub.Runner.Listener
        private readonly Dictionary<string, int> _sessionCreationExceptionTracker = new();
        private TaskAgentStatus runnerStatus = TaskAgentStatus.Online;
        private CancellationTokenSource _getMessagesTokenSource;
+        private VssCredentials _creds;
+
+        private bool _isBrokerSession = false;

        public override void Initialize(IHostContext hostContext)
        {
@@ -48,9 +63,10 @@ namespace GitHub.Runner.Listener

            _term = HostContext.GetService<ITerminal>();
            _runnerServer = HostContext.GetService<IRunnerServer>();
+            _brokerServer = hostContext.GetService<IBrokerServer>();
        }

-        public async Task<Boolean> CreateSessionAsync(CancellationToken token)
+        public async Task<CreateSessionResult> CreateSessionAsync(CancellationToken token)
        {
            Trace.Entering();

@@ -63,7 +79,7 @@ namespace GitHub.Runner.Listener
            // Create connection.
            Trace.Info("Loading Credentials");
            var credMgr = HostContext.GetService<ICredentialManager>();
-            VssCredentials creds = credMgr.LoadCredentials();
+            _creds = credMgr.LoadCredentials();

            var agent = new TaskAgentReference
            {
@@ -85,7 +101,7 @@ namespace GitHub.Runner.Listener
                try
                {
                    Trace.Info("Connecting to the Runner Server...");
-                    await _runnerServer.ConnectAsync(new Uri(serverUrl), creds);
+                    await _runnerServer.ConnectAsync(new Uri(serverUrl), _creds);
                    Trace.Info("VssConnection created");

                    _term.WriteLine();
@@ -97,6 +113,15 @@ namespace GitHub.Runner.Listener
                                                        taskAgentSession,
                                                        token);

+                    if (_session.BrokerMigrationMessage != null)
+                    {
+                        Trace.Info("Runner session is in migration mode: Creating Broker session with BrokerBaseUrl: {0}", _session.BrokerMigrationMessage.BrokerBaseUrl);
+
+                        await _brokerServer.UpdateConnectionIfNeeded(_session.BrokerMigrationMessage.BrokerBaseUrl, _creds);
+                        _session = await _brokerServer.CreateSessionAsync(taskAgentSession, token);
+                        _isBrokerSession = true;
+                    }
+
                    Trace.Info($"Session created.");
                    if (encounteringError)
                    {
@@ -105,7 +130,7 @@ namespace GitHub.Runner.Listener
                        encounteringError = false;
                    }

-                    return true;
+                    return CreateSessionResult.Success;
                }
                catch (OperationCanceledException) when (token.IsCancellationRequested)
                {
@@ -123,13 +148,13 @@ namespace GitHub.Runner.Listener
                    Trace.Error("Catch exception during create session.");
                    Trace.Error(ex);

-                    if (ex is VssOAuthTokenRequestException vssOAuthEx && creds.Federated is VssOAuthCredential vssOAuthCred)
+                    if (ex is VssOAuthTokenRequestException vssOAuthEx && _creds.Federated is VssOAuthCredential vssOAuthCred)
                    {
                        // "invalid_client" means the runner registration has been deleted from the server.
                        if (string.Equals(vssOAuthEx.Error, "invalid_client", StringComparison.OrdinalIgnoreCase))
                        {
-                            _term.WriteError("Failed to create a session. The runner registration has been deleted from the server, please re-configure.");
-                            return false;
+                            _term.WriteError("Failed to create a session. The runner registration has been deleted from the server, please re-configure. Runner registrations are automatically deleted for runners that have not connected to the service recently.");
+                            return CreateSessionResult.Failure;
                        }

                        // Check whether we get 401 because the runner registration already removed by the service.
@@ -139,15 +164,19 @@ namespace GitHub.Runner.Listener
                        var authError = await oauthTokenProvider.ValidateCredentialAsync(token);
                        if (string.Equals(authError, "invalid_client", StringComparison.OrdinalIgnoreCase))
                        {
-                            _term.WriteError("Failed to create a session. The runner registration has been deleted from the server, please re-configure.");
-                            return false;
+                            _term.WriteError("Failed to create a session. The runner registration has been deleted from the server, please re-configure. Runner registrations are automatically deleted for runners that have not connected to the service recently.");
+                            return CreateSessionResult.Failure;
                        }
                    }

                    if (!IsSessionCreationExceptionRetriable(ex))
                    {
                        _term.WriteError($"Failed to create session. {ex.Message}");
-                        return false;
+                        if (ex is TaskAgentSessionConflictException)
+                        {
+                            return CreateSessionResult.SessionConflict;
+                        }
+                        return CreateSessionResult.Failure;
                    }

                    if (!encounteringError) //print the message only on the first error
@@ -171,6 +200,11 @@ namespace GitHub.Runner.Listener
                    using (var ts = new CancellationTokenSource(TimeSpan.FromSeconds(30)))
                    {
                        await _runnerServer.DeleteAgentSessionAsync(_settings.PoolId, _session.SessionId, ts.Token);
+
+                        if (_isBrokerSession)
+                        {
+                            await _brokerServer.DeleteSessionAsync(ts.Token);
+                        }
                    }
                }
                else
@@ -181,8 +215,6 @@ namespace GitHub.Runner.Listener
        }

        public void OnJobStatus(object sender, JobStatusEventArgs e)
-        {
-            if (StringUtil.ConvertToBoolean(Environment.GetEnvironmentVariable("USE_BROKER_FLOW")))
        {
            Trace.Info("Received job status event. JobState: {0}", e.Status);
            runnerStatus = e.Status;
@@ -194,7 +226,7 @@ namespace GitHub.Runner.Listener
            {
                Trace.Info("_getMessagesTokenSource is already disposed.");
            }
-            }
+
        }

        public async Task<TaskAgentMessage> GetNextMessageAsync(CancellationToken token)
@@ -204,6 +236,7 @@ namespace GitHub.Runner.Listener
            ArgUtil.NotNull(_settings, nameof(_settings));
            bool encounteringError = false;
            int continuousError = 0;
+            int continuousEmptyMessage = 0;
            string errorMessage = string.Empty;
            Stopwatch heartbeat = new();
            heartbeat.Restart();
@@ -219,11 +252,31 @@ namespace GitHub.Runner.Listener
                                                                _lastMessageId,
                                                                runnerStatus,
                                                                BuildConstants.RunnerPackage.Version,
+                                                                VarUtil.OS,
+                                                                VarUtil.OSArchitecture,
+                                                                _settings.DisableUpdate,
                                                                _getMessagesTokenSource.Token);

                    // Decrypt the message body if the session is using encryption
                    message = DecryptMessage(message);

+
+                    if (message != null && message.MessageType == BrokerMigrationMessage.MessageType)
+                    {
+                        Trace.Info("BrokerMigration message received. Polling Broker for messages...");
+
+                        var migrationMessage = JsonUtility.FromString<BrokerMigrationMessage>(message.Body);
+
+                        await _brokerServer.UpdateConnectionIfNeeded(migrationMessage.BrokerBaseUrl, _creds);
+                        message = await _brokerServer.GetRunnerMessageAsync(_session.SessionId,
+                                                                        runnerStatus,
+                                                                        BuildConstants.RunnerPackage.Version,
+                                                                        VarUtil.OS,
+                                                                        VarUtil.OSArchitecture,
+                                                                        _settings.DisableUpdate,
+                                                                        token);
+                    }
+
                    if (message != null)
                    {
                        _lastMessageId = message.MessageId;
@@ -262,7 +315,7 @@ namespace GitHub.Runner.Listener
                    Trace.Error(ex);

                    // don't retry if SkipSessionRecover = true, DT service will delete agent session to stop agent from taking more jobs.
-                    if (ex is TaskAgentSessionExpiredException && !_settings.SkipSessionRecover && await CreateSessionAsync(token))
+                    if (ex is TaskAgentSessionExpiredException && !_settings.SkipSessionRecover && (await CreateSessionAsync(token) == CreateSessionResult.Success))
                    {
                        Trace.Info($"{nameof(TaskAgentSessionExpiredException)} received, recovered by recreate session.");
                    }
@@ -307,16 +360,27 @@ namespace GitHub.Runner.Listener

                if (message == null)
                {
+                    continuousEmptyMessage++;
                    if (heartbeat.Elapsed > TimeSpan.FromMinutes(30))
                    {
                        Trace.Info($"No message retrieved from session '{_session.SessionId}' within last 30 minutes.");
                        heartbeat.Restart();
+                        continuousEmptyMessage = 0;
                    }
                    else
                    {
                        Trace.Verbose($"No message retrieved from session '{_session.SessionId}'.");
                    }

+                    if (continuousEmptyMessage > 50)
+                    {
+                        // retried more than 50 times in less than 30mins and still getting empty message
+                        // something is not right on the service side, backoff for 15-30s before retry
+                        _getNextMessageRetryInterval = BackoffTimerHelper.GetRandomBackoff(TimeSpan.FromSeconds(15), TimeSpan.FromSeconds(30), _getNextMessageRetryInterval);
+                        Trace.Info("Sleeping for {0} seconds before retrying.", _getNextMessageRetryInterval.TotalSeconds);
+                        await HostContext.Delay(_getNextMessageRetryInterval, token);
+                    }
+
                    continue;
                }

@@ -339,6 +403,12 @@ namespace GitHub.Runner.Listener
            }
        }

+        public async Task RefreshListenerTokenAsync(CancellationToken cancellationToken)
+        {
+            await _runnerServer.RefreshConnectionAsync(RunnerConnectionType.MessageQueue, TimeSpan.FromSeconds(60));
+            await _brokerServer.ForceRefreshConnection(_creds);
+        }
+
        private TaskAgentMessage DecryptMessage(TaskAgentMessage message)
        {
            if (_session.EncryptionKey == null ||
--- a/src/Runner.Listener/Runner.Listener.csproj
+++ b/src/Runner.Listener/Runner.Listener.csproj
@@ -1,11 +1,12 @@
 <Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
    <OutputType>Exe</OutputType>
    <RuntimeIdentifiers>win-x64;win-x86;linux-x64;linux-arm64;linux-arm;osx-x64;osx-arm64;win-arm64</RuntimeIdentifiers>
+    <SelfContained>true</SelfContained>
    <TargetLatestRuntimePatch>true</TargetLatestRuntimePatch>
-    <NoWarn>NU1701;NU1603</NoWarn>
+    <NoWarn>NU1701;NU1603;SYSLIB0050;SYSLIB0051</NoWarn>
    <Version>$(Version)</Version>
    <PredefinedCulturesOnly>false</PredefinedCulturesOnly>
    <PublishReadyToRunComposite>true</PublishReadyToRunComposite>
@@ -18,17 +19,11 @@
  </ItemGroup>

  <ItemGroup>
-    <PackageReference Include="Microsoft.Win32.Registry" Version="4.4.0" />
+    <PackageReference Include="Microsoft.Win32.Registry" Version="5.0.0" />
    <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
-    <PackageReference Include="System.IO.FileSystem.AccessControl" Version="4.4.0" />
-    <PackageReference Include="System.Security.Cryptography.ProtectedData" Version="4.4.0" />
-    <PackageReference Include="System.ServiceProcess.ServiceController" Version="4.4.0" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <EmbeddedResource Include="..\Misc\runnercoreassets">
-      <LogicalName>GitHub.Runner.Listener.runnercoreassets</LogicalName>
-    </EmbeddedResource>
+    <PackageReference Include="System.IO.FileSystem.AccessControl" Version="5.0.0" />
+    <PackageReference Include="System.Security.Cryptography.ProtectedData" Version="8.0.0" />
+    <PackageReference Include="System.ServiceProcess.ServiceController" Version="8.0.0" />
  </ItemGroup>

  <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
--- a/src/Runner.Listener/Runner.cs
+++ b/src/Runner.Listener/Runner.cs
@@ -32,10 +32,25 @@ namespace GitHub.Runner.Listener
        private bool _inConfigStage;
        private ManualResetEvent _completedCommand = new(false);

+        // <summary>
+        // Helps avoid excessive calls to Run Service when encountering non-retriable errors from /acquirejob.
+        // Normally we rely on the HTTP clients to back off between retry attempts. However, acquiring a job
+        // involves calls to both Run Serivce and Broker. And Run Service and Broker communicate with each other
+        // in an async fashion.
+        //
+        // When Run Service encounters a non-retriable error, it sends an async message to Broker. The runner will,
+        // however, immediately call Broker to get the next message. If the async event from Run Service to Broker
+        // has not yet been processed, the next message from Broker may be the same job message.
+        //
+        // The error throttler helps us back off when encountering successive, non-retriable errors from /acquirejob.
+        // </summary>
+        private IErrorThrottler _acquireJobThrottler;
+
        public override void Initialize(IHostContext hostContext)
        {
            base.Initialize(hostContext);
            _term = HostContext.GetService<ITerminal>();
+            _acquireJobThrottler = HostContext.CreateService<IErrorThrottler>();
        }

        public async Task<int> ExecuteCommand(CommandSettings command)
@@ -213,10 +228,12 @@ namespace GitHub.Runner.Listener
                            var configFile = Path.Combine(HostContext.GetDirectory(WellKnownDirectory.Root), config.Key);
                            var configContent = Convert.FromBase64String(config.Value);
 #if OS_WINDOWS
+#pragma warning disable CA1416
                            if (configFile == HostContext.GetConfigFile(WellKnownConfigFile.RSACredentials))
                            {
                                configContent = ProtectedData.Protect(configContent, null, DataProtectionScope.LocalMachine);
                            }
+#pragma warning restore CA1416
 #endif
                            File.WriteAllBytes(configFile, configContent);
                            File.SetAttributes(configFile, File.GetAttributes(configFile) | FileAttributes.Hidden);
@@ -359,7 +376,12 @@ namespace GitHub.Runner.Listener
            {
                Trace.Info(nameof(RunAsync));
                _listener = GetMesageListener(settings);
-                if (!await _listener.CreateSessionAsync(HostContext.RunnerShutdownToken))
+                CreateSessionResult createSessionResult = await _listener.CreateSessionAsync(HostContext.RunnerShutdownToken);
+                if (createSessionResult == CreateSessionResult.SessionConflict)
+                {
+                    return Constants.Runner.ReturnCode.SessionConflict;
+                }
+                else if (createSessionResult == CreateSessionResult.Failure)
                {
                    return Constants.Runner.ReturnCode.TerminatedError;
                }
@@ -457,22 +479,13 @@ namespace GitHub.Runner.Listener

                            message = await getNextMessage; //get next message
                            HostContext.WritePerfCounter($"MessageReceived_{message.MessageType}");
-                            if (string.Equals(message.MessageType, AgentRefreshMessage.MessageType, StringComparison.OrdinalIgnoreCase) ||
-                                string.Equals(message.MessageType, RunnerRefreshMessage.MessageType, StringComparison.OrdinalIgnoreCase))
+                            if (string.Equals(message.MessageType, AgentRefreshMessage.MessageType, StringComparison.OrdinalIgnoreCase))
                            {
                                if (autoUpdateInProgress == false)
                                {
                                    autoUpdateInProgress = true;
-                                    AgentRefreshMessage runnerUpdateMessage = null;
-                                    if (string.Equals(message.MessageType, AgentRefreshMessage.MessageType, StringComparison.OrdinalIgnoreCase))
-                                    {
-                                        runnerUpdateMessage = JsonUtility.FromString<AgentRefreshMessage>(message.Body);
-                                    }
-                                    else
-                                    {
-                                        var brokerRunnerUpdateMessage = JsonUtility.FromString<RunnerRefreshMessage>(message.Body);
-                                        runnerUpdateMessage = new AgentRefreshMessage(brokerRunnerUpdateMessage.RunnerId, brokerRunnerUpdateMessage.TargetVersion, TimeSpan.FromSeconds(brokerRunnerUpdateMessage.TimeoutInSeconds));
-                                    }
+                                    AgentRefreshMessage runnerUpdateMessage = JsonUtility.FromString<AgentRefreshMessage>(message.Body);
+
 #if DEBUG
                                    // Can mock the update for testing
                                    if (StringUtil.ConvertToBoolean(Environment.GetEnvironmentVariable("GITHUB_ACTIONS_RUNNER_IS_MOCK_UPDATE")))
@@ -503,6 +516,22 @@ namespace GitHub.Runner.Listener
                                    Trace.Info("Refresh message received, skip autoupdate since a previous autoupdate is already running.");
                                }
                            }
+                            else if (string.Equals(message.MessageType, RunnerRefreshMessage.MessageType, StringComparison.OrdinalIgnoreCase))
+                            {
+                                if (autoUpdateInProgress == false)
+                                {
+                                    autoUpdateInProgress = true;
+                                    RunnerRefreshMessage brokerRunnerUpdateMessage = JsonUtility.FromString<RunnerRefreshMessage>(message.Body);
+
+                                    var selfUpdater = HostContext.GetService<ISelfUpdaterV2>();
+                                    selfUpdateTask = selfUpdater.SelfUpdate(brokerRunnerUpdateMessage, jobDispatcher, false, HostContext.RunnerShutdownToken);
+                                    Trace.Info("Refresh message received, kick-off selfupdate background process.");
+                                }
+                                else
+                                {
+                                    Trace.Info("Refresh message received, skip autoupdate since a previous autoupdate is already running.");
+                                }
+                            }
                            else if (string.Equals(message.MessageType, JobRequestMessageTypes.PipelineAgentJobRequest, StringComparison.OrdinalIgnoreCase))
                            {
                                if (autoUpdateInProgress || runOnceJobReceived)
@@ -551,13 +580,21 @@ namespace GitHub.Runner.Listener
                                        await runServer.ConnectAsync(new Uri(messageRef.RunServiceUrl), creds);
                                        try
                                        {
-                                            jobRequestMessage =
-                                            await runServer.GetJobMessageAsync(messageRef.RunnerRequestId,
-                                            messageQueueLoopTokenSource.Token);
+                                            jobRequestMessage = await runServer.GetJobMessageAsync(messageRef.RunnerRequestId, messageQueueLoopTokenSource.Token);
+                                            _acquireJobThrottler.Reset();
                                        }
-                                        catch (TaskOrchestrationJobAlreadyAcquiredException)
+                                        catch (Exception ex) when (
+                                            ex is TaskOrchestrationJobNotFoundException ||          // HTTP status 404
+                                            ex is TaskOrchestrationJobAlreadyAcquiredException ||   // HTTP status 409
+                                            ex is TaskOrchestrationJobUnprocessableException)       // HTTP status 422
                                        {
-                                            Trace.Info("Job is already acquired, skip this message.");
+                                            Trace.Info($"Skipping message Job. {ex.Message}");
+                                            await _acquireJobThrottler.IncrementAndWaitAsync(messageQueueLoopTokenSource.Token);
+                                            continue;
+                                        }
+                                        catch (Exception ex)
+                                        {
+                                            Trace.Error($"Caught exception from acquiring job message: {ex}");
                                            continue;
                                        }
                                    }
@@ -589,6 +626,11 @@ namespace GitHub.Runner.Listener
                                Trace.Info($"Service requests the hosted runner to shutdown. Reason: '{HostedRunnerShutdownMessage.Reason}'.");
                                return Constants.Runner.ReturnCode.Success;
                            }
+                            else if (string.Equals(message.MessageType, TaskAgentMessageTypes.ForceTokenRefresh))
+                            {
+                                Trace.Info("Received ForceTokenRefreshMessage");
+                                await _listener.RefreshListenerTokenAsync(messageQueueLoopTokenSource.Token);
+                            }
                            else
                            {
                                Trace.Error($"Received message {message.MessageId} with unsupported message type {message.MessageType}.");
@@ -627,6 +669,7 @@ namespace GitHub.Runner.Listener
                    {
                        try
                        {
+                            Trace.Info("Deleting Runner Session...");
                            await _listener.DeleteSessionAsync();
                        }
                        catch (Exception ex) when (runOnce)
--- a/src/Runner.Listener/SelfUpdater.cs
+++ b/src/Runner.Listener/SelfUpdater.cs
@@ -6,13 +6,11 @@ using System.IO;
 using System.IO.Compression;
 using System.Linq;
 using System.Net.Http;
-using System.Reflection;
 using System.Security.Cryptography;
 using System.Threading;
 using System.Threading.Tasks;
 using GitHub.DistributedTask.WebApi;
 using GitHub.Runner.Common;
-using GitHub.Runner.Common.Util;
 using GitHub.Runner.Sdk;
 using GitHub.Services.Common;
 using GitHub.Services.WebApi;
@@ -30,20 +28,14 @@ namespace GitHub.Runner.Listener
    {
        private static string _packageType = "agent";
        private static string _platform = BuildConstants.RunnerPackage.PackageName;
-        private static string _dotnetRuntime = "dotnetRuntime";
-        private static string _externals = "externals";
-        private readonly Dictionary<string, string> _contentHashes = new();

        private PackageMetadata _targetPackage;
        private ITerminal _terminal;
        private IRunnerServer _runnerServer;
        private int _poolId;
        private ulong _agentId;
+        private const int _numberOfOldVersionsToKeep = 1;
        private readonly ConcurrentQueue<string> _updateTrace = new();
-        private Task _cloneAndCalculateContentHashTask;
-        private string _dotnetRuntimeCloneDirectory;
-        private string _externalsCloneDirectory;
-
        public bool Busy { get; private set; }

        public override void Initialize(IHostContext hostContext)
@@ -56,8 +48,6 @@ namespace GitHub.Runner.Listener
            var settings = configStore.GetSettings();
            _poolId = settings.PoolId;
            _agentId = settings.AgentId;
-            _dotnetRuntimeCloneDirectory = Path.Combine(HostContext.GetDirectory(WellKnownDirectory.Work), "__dotnet_runtime__");
-            _externalsCloneDirectory = Path.Combine(HostContext.GetDirectory(WellKnownDirectory.Work), "__externals__");
        }

        public async Task<bool> SelfUpdate(AgentRefreshMessage updateMessage, IJobDispatcher jobDispatcher, bool restartInteractiveRunner, CancellationToken token)
@@ -67,13 +57,6 @@ namespace GitHub.Runner.Listener
            {
                var totalUpdateTime = Stopwatch.StartNew();

-                // Copy dotnet runtime and externals of current runner to a temp folder
-                // So we can re-use them with trimmed runner package, if possible.
-                // This process is best effort, if we can't use trimmed runner package, 
-                // we will just go with the full package.
-                var linkedTokenSource = CancellationTokenSource.CreateLinkedTokenSource(token);
-                _cloneAndCalculateContentHashTask = CloneAndCalculateAssetsHash(_dotnetRuntimeCloneDirectory, _externalsCloneDirectory, linkedTokenSource.Token);
-
                if (!await UpdateNeeded(updateMessage.TargetVersion, token))
                {
                    Trace.Info($"Can't find available update package.");
@@ -87,24 +70,6 @@ namespace GitHub.Runner.Listener
                await UpdateRunnerUpdateStateAsync("Runner update in progress, do not shutdown runner.");
                await UpdateRunnerUpdateStateAsync($"Downloading {_targetPackage.Version} runner");

-                if (_targetPackage.TrimmedPackages?.Count > 0)
-                {
-                    // wait for cloning assets task to finish only if we have trimmed packages
-                    await _cloneAndCalculateContentHashTask;
-                }
-                else
-                {
-                    linkedTokenSource.Cancel();
-                    try
-                    {
-                        await _cloneAndCalculateContentHashTask;
-                    }
-                    catch (Exception ex)
-                    {
-                        Trace.Info($"Ingore errors after cancelling cloning assets task: {ex}");
-                    }
-                }
-
                await DownloadLatestRunner(token, updateMessage.TargetVersion);
                Trace.Info($"Download latest runner and unzip into runner root.");

@@ -218,54 +183,8 @@ namespace GitHub.Runner.Listener
            string archiveFile = null;
            var packageDownloadUrl = _targetPackage.DownloadUrl;
            var packageHashValue = _targetPackage.HashValue;
-            var runtimeTrimmed = false;
-            var externalsTrimmed = false;
-            var fallbackToFullPackage = false;
-
-            // Only try trimmed package if sever sends them and we have calculated hash value of the current runtime/externals.
-            if (_contentHashes.Count == 2 &&
-                _contentHashes.ContainsKey(_dotnetRuntime) &&
-                _contentHashes.ContainsKey(_externals) &&
-                _targetPackage.TrimmedPackages?.Count > 0)
-            {
-                Trace.Info($"Current runner content hash: {StringUtil.ConvertToJson(_contentHashes)}");
-                Trace.Info($"Trimmed packages info from service: {StringUtil.ConvertToJson(_targetPackage.TrimmedPackages)}");
-                // Try to see whether we can use any size trimmed down package to speed up runner updates.
-                foreach (var trimmedPackage in _targetPackage.TrimmedPackages)
-                {
-                    if (trimmedPackage.TrimmedContents.Count == 2 &&
-                        trimmedPackage.TrimmedContents.TryGetValue(_dotnetRuntime, out var trimmedRuntimeHash) &&
-                        trimmedRuntimeHash == _contentHashes[_dotnetRuntime] &&
-                        trimmedPackage.TrimmedContents.TryGetValue(_externals, out var trimmedExternalsHash) &&
-                        trimmedExternalsHash == _contentHashes[_externals])
-                    {
-                        Trace.Info($"Use trimmed (runtime+externals) package '{trimmedPackage.DownloadUrl}' to update runner.");
-                        packageDownloadUrl = trimmedPackage.DownloadUrl;
-                        packageHashValue = trimmedPackage.HashValue;
-                        runtimeTrimmed = true;
-                        externalsTrimmed = true;
-                        break;
-                    }
-                    else if (trimmedPackage.TrimmedContents.Count == 1 &&
-                             trimmedPackage.TrimmedContents.TryGetValue(_externals, out trimmedExternalsHash) &&
-                             trimmedExternalsHash == _contentHashes[_externals])
-                    {
-                        Trace.Info($"Use trimmed (externals) package '{trimmedPackage.DownloadUrl}' to update runner.");
-                        packageDownloadUrl = trimmedPackage.DownloadUrl;
-                        packageHashValue = trimmedPackage.HashValue;
-                        externalsTrimmed = true;
-                        break;
-                    }
-                    else
-                    {
-                        Trace.Info($"Can't use trimmed package from '{trimmedPackage.DownloadUrl}' since the current runner does not carry those trimmed content (Hash mismatch).");
-                    }
-                }
-            }

            _updateTrace.Enqueue($"DownloadUrl: {packageDownloadUrl}");
-            _updateTrace.Enqueue($"RuntimeTrimmed: {runtimeTrimmed}");
-            _updateTrace.Enqueue($"ExternalsTrimmed: {externalsTrimmed}");

            try
            {
@@ -323,12 +242,6 @@ namespace GitHub.Runner.Listener

                await ExtractRunnerPackage(archiveFile, latestRunnerDirectory, token);
            }
-            catch (Exception ex) when (runtimeTrimmed || externalsTrimmed)
-            {
-                // if anything failed when we use trimmed package (download/validatehase/extract), try again with the full runner package.
-                Trace.Error($"Fail to download latest runner using trimmed package: {ex}");
-                fallbackToFullPackage = true;
-            }
            finally
            {
                try
@@ -347,74 +260,6 @@ namespace GitHub.Runner.Listener
                }
            }

-            var trimmedPackageRestoreTasks = new List<Task<bool>>();
-            if (!fallbackToFullPackage)
-            {
-                // Skip restoring externals and runtime if we are going to fullback to the full package.
-                if (externalsTrimmed)
-                {
-                    trimmedPackageRestoreTasks.Add(RestoreTrimmedExternals(latestRunnerDirectory, token));
-                }
-                if (runtimeTrimmed)
-                {
-                    trimmedPackageRestoreTasks.Add(RestoreTrimmedDotnetRuntime(latestRunnerDirectory, token));
-                }
-            }
-
-            if (trimmedPackageRestoreTasks.Count > 0)
-            {
-                var restoreResults = await Task.WhenAll(trimmedPackageRestoreTasks);
-                if (restoreResults.Any(x => x == false))
-                {
-                    // if any of the restore failed, fallback to full package.
-                    fallbackToFullPackage = true;
-                }
-            }
-
-            if (fallbackToFullPackage)
-            {
-                Trace.Error("Something wrong with the trimmed runner package, failback to use the full package for runner updates.");
-                _updateTrace.Enqueue($"FallbackToFullPackage: {fallbackToFullPackage}");
-
-                IOUtil.DeleteDirectory(latestRunnerDirectory, token);
-                Directory.CreateDirectory(latestRunnerDirectory);
-
-                packageDownloadUrl = _targetPackage.DownloadUrl;
-                packageHashValue = _targetPackage.HashValue;
-                _updateTrace.Enqueue($"DownloadUrl: {packageDownloadUrl}");
-
-                try
-                {
-                    archiveFile = await DownLoadRunner(latestRunnerDirectory, packageDownloadUrl, packageHashValue, token);
-
-                    if (string.IsNullOrEmpty(archiveFile))
-                    {
-                        throw new TaskCanceledException($"Runner package '{packageDownloadUrl}' failed after {Constants.RunnerDownloadRetryMaxAttempts} download attempts");
-                    }
-
-                    await ValidateRunnerHash(archiveFile, packageHashValue);
-
-                    await ExtractRunnerPackage(archiveFile, latestRunnerDirectory, token);
-                }
-                finally
-                {
-                    try
-                    {
-                        // delete .zip file
-                        if (!string.IsNullOrEmpty(archiveFile) && File.Exists(archiveFile))
-                        {
-                            Trace.Verbose("Deleting latest runner package zip: {0}", archiveFile);
-                            IOUtil.DeleteFile(archiveFile);
-                        }
-                    }
-                    catch (Exception ex)
-                    {
-                        //it is not critical if we fail to delete the .zip file
-                        Trace.Warning("Failed to delete runner package zip '{0}'. Exception: {1}", archiveFile, ex);
-                    }
-                }
-            }
-
            await CopyLatestRunnerToRoot(latestRunnerDirectory, token);
        }

@@ -665,9 +510,9 @@ namespace GitHub.Runner.Listener

            // delete old bin.2.99.0 folder, only leave the current version and the latest download version
            var allBinDirs = Directory.GetDirectories(HostContext.GetDirectory(WellKnownDirectory.Root), "bin.*");
-            if (allBinDirs.Length > 2)
+            if (allBinDirs.Length > _numberOfOldVersionsToKeep)
            {
-                // there are more than 2 bin.version folder.
+                // there are more than one bin.version folder.
                // delete older bin.version folders.
                foreach (var oldBinDir in allBinDirs)
                {
@@ -694,9 +539,9 @@ namespace GitHub.Runner.Listener

            // delete old externals.2.99.0 folder, only leave the current version and the latest download version
            var allExternalsDirs = Directory.GetDirectories(HostContext.GetDirectory(WellKnownDirectory.Root), "externals.*");
-            if (allExternalsDirs.Length > 2)
+            if (allExternalsDirs.Length > _numberOfOldVersionsToKeep)
            {
-                // there are more than 2 externals.version folder.
+                // there are more than one externals.version folder.
                // delete older externals.version folders.
                foreach (var oldExternalDir in allExternalsDirs)
                {
@@ -795,330 +640,5 @@ namespace GitHub.Runner.Listener
                Trace.Info($"Catch exception during report update state, ignore this error and continue auto-update.");
            }
        }
-
-        private async Task<bool> RestoreTrimmedExternals(string downloadDirectory, CancellationToken token)
-        {
-            // Copy the current runner's externals if we are using a externals trimmed package
-            // Execute the node.js to make sure the copied externals is working.
-            var stopWatch = Stopwatch.StartNew();
-            try
-            {
-                Trace.Info($"Copy {_externalsCloneDirectory} to {Path.Combine(downloadDirectory, Constants.Path.ExternalsDirectory)}.");
-                IOUtil.CopyDirectory(_externalsCloneDirectory, Path.Combine(downloadDirectory, Constants.Path.ExternalsDirectory), token);
-
-                // try run node.js to see if current node.js works fine after copy over to new location.
-                var nodeVersions = NodeUtil.BuiltInNodeVersions;
-                foreach (var nodeVersion in nodeVersions)
-                {
-                    var newNodeBinary = Path.Combine(downloadDirectory, Constants.Path.ExternalsDirectory, nodeVersion, "bin", $"node{IOUtil.ExeExtension}");
-                    if (File.Exists(newNodeBinary))
-                    {
-                        using (var p = HostContext.CreateService<IProcessInvoker>())
-                        {
-                            var outputs = "";
-                            p.ErrorDataReceived += (_, data) =>
-                            {
-                                if (!string.IsNullOrEmpty(data.Data))
-                                {
-                                    Trace.Error(data.Data);
-                                }
-                            };
-                            p.OutputDataReceived += (_, data) =>
-                            {
-                                if (!string.IsNullOrEmpty(data.Data))
-                                {
-                                    Trace.Info(data.Data);
-                                    outputs = data.Data;
-                                }
-                            };
-                            var exitCode = await p.ExecuteAsync(HostContext.GetDirectory(WellKnownDirectory.Root), newNodeBinary, $"-e \"console.log('{nameof(RestoreTrimmedExternals)}')\"", null, token);
-                            if (exitCode != 0)
-                            {
-                                Trace.Error($"{newNodeBinary} -e \"console.log()\" failed with exit code {exitCode}");
-                                return false;
-                            }
-
-                            if (!string.Equals(outputs, nameof(RestoreTrimmedExternals), StringComparison.OrdinalIgnoreCase))
-                            {
-                                Trace.Error($"{newNodeBinary} -e \"console.log()\" did not output expected content.");
-                                return false;
-                            }
-                        }
-                    }
-                }
-
-                return true;
-            }
-            catch (Exception ex)
-            {
-                Trace.Error($"Fail to restore externals for trimmed package: {ex}");
-                return false;
-            }
-            finally
-            {
-                stopWatch.Stop();
-                _updateTrace.Enqueue($"{nameof(RestoreTrimmedExternals)}Time: {stopWatch.ElapsedMilliseconds}ms");
-            }
-        }
-
-        private async Task<bool> RestoreTrimmedDotnetRuntime(string downloadDirectory, CancellationToken token)
-        {
-            // Copy the current runner's dotnet runtime if we are using a dotnet runtime trimmed package
-            // Execute the runner.listener to make sure the copied runtime is working.
-            var stopWatch = Stopwatch.StartNew();
-            try
-            {
-                Trace.Info($"Copy {_dotnetRuntimeCloneDirectory} to {Path.Combine(downloadDirectory, Constants.Path.BinDirectory)}.");
-                IOUtil.CopyDirectory(_dotnetRuntimeCloneDirectory, Path.Combine(downloadDirectory, Constants.Path.BinDirectory), token);
-
-                // try run the runner executable to see if current dotnet runtime + future runner binary works fine.
-                var newRunnerBinary = Path.Combine(downloadDirectory, Constants.Path.BinDirectory, "Runner.Listener");
-                using (var p = HostContext.CreateService<IProcessInvoker>())
-                {
-                    p.ErrorDataReceived += (_, data) =>
-                    {
-                        if (!string.IsNullOrEmpty(data.Data))
-                        {
-                            Trace.Error(data.Data);
-                        }
-                    };
-                    p.OutputDataReceived += (_, data) =>
-                    {
-                        if (!string.IsNullOrEmpty(data.Data))
-                        {
-                            Trace.Info(data.Data);
-                        }
-                    };
-                    var exitCode = await p.ExecuteAsync(HostContext.GetDirectory(WellKnownDirectory.Root), newRunnerBinary, "--version", null, token);
-                    if (exitCode != 0)
-                    {
-                        Trace.Error($"{newRunnerBinary} --version failed with exit code {exitCode}");
-                        return false;
-                    }
-                    else
-                    {
-                        return true;
-                    }
-                }
-            }
-            catch (Exception ex)
-            {
-                Trace.Error($"Fail to restore dotnet runtime for trimmed package: {ex}");
-                return false;
-            }
-            finally
-            {
-                stopWatch.Stop();
-                _updateTrace.Enqueue($"{nameof(RestoreTrimmedDotnetRuntime)}Time: {stopWatch.ElapsedMilliseconds}ms");
-            }
-        }
-
-        private async Task CloneAndCalculateAssetsHash(string dotnetRuntimeCloneDirectory, string externalsCloneDirectory, CancellationToken token)
-        {
-            var runtimeCloneTask = CloneDotnetRuntime(dotnetRuntimeCloneDirectory, token);
-            var externalsCloneTask = CloneExternals(externalsCloneDirectory, token);
-
-            var waitingTasks = new Dictionary<string, Task>()
-            {
-                {nameof(CloneDotnetRuntime), runtimeCloneTask},
-                {nameof(CloneExternals),externalsCloneTask}
-            };
-
-            while (waitingTasks.Count > 0)
-            {
-                Trace.Info($"Waiting for {waitingTasks.Count} tasks to complete.");
-                var complatedTask = await Task.WhenAny(waitingTasks.Values);
-                if (waitingTasks.ContainsKey(nameof(CloneExternals)) &&
-                    complatedTask == waitingTasks[nameof(CloneExternals)])
-                {
-                    Trace.Info($"Externals clone finished.");
-                    waitingTasks.Remove(nameof(CloneExternals));
-                    try
-                    {
-                        if (await externalsCloneTask && !token.IsCancellationRequested)
-                        {
-                            var externalsHash = await HashFiles(externalsCloneDirectory, token);
-                            Trace.Info($"Externals content hash: {externalsHash}");
-                            _contentHashes[_externals] = externalsHash;
-                            _updateTrace.Enqueue($"ExternalsHash: {_contentHashes[_externals]}");
-                        }
-                        else
-                        {
-                            Trace.Error($"Skip compute hash since clone externals failed/cancelled.");
-                        }
-                    }
-                    catch (Exception ex)
-                    {
-                        Trace.Error($"Fail to hash externals content: {ex}");
-                    }
-                }
-                else if (waitingTasks.ContainsKey(nameof(CloneDotnetRuntime)) &&
-                         complatedTask == waitingTasks[nameof(CloneDotnetRuntime)])
-                {
-                    Trace.Info($"Dotnet runtime clone finished.");
-                    waitingTasks.Remove(nameof(CloneDotnetRuntime));
-                    try
-                    {
-                        if (await runtimeCloneTask && !token.IsCancellationRequested)
-                        {
-                            var runtimeHash = await HashFiles(dotnetRuntimeCloneDirectory, token);
-                            Trace.Info($"Runtime content hash: {runtimeHash}");
-                            _contentHashes[_dotnetRuntime] = runtimeHash;
-                            _updateTrace.Enqueue($"DotnetRuntimeHash: {_contentHashes[_dotnetRuntime]}");
-                        }
-                        else
-                        {
-                            Trace.Error($"Skip compute hash since clone dotnet runtime failed/cancelled.");
-                        }
-                    }
-                    catch (Exception ex)
-                    {
-                        Trace.Error($"Fail to hash runtime content: {ex}");
-                    }
-                }
-
-                Trace.Info($"Still waiting for {waitingTasks.Count} tasks to complete.");
-            }
-        }
-
-        private async Task<bool> CloneDotnetRuntime(string runtimeDir, CancellationToken token)
-        {
-            var stopWatch = Stopwatch.StartNew();
-            try
-            {
-                Trace.Info($"Cloning dotnet runtime to {runtimeDir}");
-                IOUtil.DeleteDirectory(runtimeDir, CancellationToken.None);
-                Directory.CreateDirectory(runtimeDir);
-
-                var assembly = Assembly.GetExecutingAssembly();
-                var assetsContent = default(string);
-                using (var stream = assembly.GetManifestResourceStream("GitHub.Runner.Listener.runnercoreassets"))
-                using (var streamReader = new StreamReader(stream))
-                {
-                    assetsContent = await streamReader.ReadToEndAsync();
-                }
-
-                if (!string.IsNullOrEmpty(assetsContent))
-                {
-                    var runnerCoreAssets = assetsContent.Split(new[] { "\n", "\r\n" }, StringSplitOptions.RemoveEmptyEntries);
-                    if (runnerCoreAssets.Length > 0)
-                    {
-                        var binDir = HostContext.GetDirectory(WellKnownDirectory.Bin);
-                        IOUtil.CopyDirectory(binDir, runtimeDir, token);
-
-                        var clonedFile = 0;
-                        foreach (var file in Directory.EnumerateFiles(runtimeDir, "*", SearchOption.AllDirectories))
-                        {
-                            token.ThrowIfCancellationRequested();
-                            if (runnerCoreAssets.Any(x => file.Replace(Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar).EndsWith(x.Trim())))
-                            {
-                                Trace.Verbose($"{file} is part of the runner core, delete from cloned runtime directory.");
-                                IOUtil.DeleteFile(file);
-                            }
-                            else
-                            {
-                                clonedFile++;
-                            }
-                        }
-
-                        Trace.Info($"Successfully cloned dotnet runtime to {runtimeDir}. Total files: {clonedFile}");
-                        return true;
-                    }
-                }
-            }
-            catch (Exception ex)
-            {
-                Trace.Error($"Fail to clone dotnet runtime to {runtimeDir}");
-                Trace.Error(ex);
-            }
-            finally
-            {
-                stopWatch.Stop();
-                _updateTrace.Enqueue($"{nameof(CloneDotnetRuntime)}Time: {stopWatch.ElapsedMilliseconds}ms");
-            }
-
-            return false;
-        }
-
-        private Task<bool> CloneExternals(string externalsDir, CancellationToken token)
-        {
-            var stopWatch = Stopwatch.StartNew();
-            try
-            {
-                Trace.Info($"Cloning externals to {externalsDir}");
-                IOUtil.DeleteDirectory(externalsDir, CancellationToken.None);
-                Directory.CreateDirectory(externalsDir);
-                IOUtil.CopyDirectory(HostContext.GetDirectory(WellKnownDirectory.Externals), externalsDir, token);
-                Trace.Info($"Successfully cloned externals to {externalsDir}.");
-                return Task.FromResult(true);
-            }
-            catch (Exception ex)
-            {
-                Trace.Error($"Fail to clone externals to {externalsDir}");
-                Trace.Error(ex);
-            }
-            finally
-            {
-                stopWatch.Stop();
-                _updateTrace.Enqueue($"{nameof(CloneExternals)}Time: {stopWatch.ElapsedMilliseconds}ms");
-            }
-
-            return Task.FromResult(false);
-        }
-
-        private async Task<string> HashFiles(string fileFolder, CancellationToken token)
-        {
-            Trace.Info($"Calculating hash for {fileFolder}");
-
-            var stopWatch = Stopwatch.StartNew();
-            string binDir = HostContext.GetDirectory(WellKnownDirectory.Bin);
-            string node = Path.Combine(HostContext.GetDirectory(WellKnownDirectory.Externals), NodeUtil.GetInternalNodeVersion(), "bin", $"node{IOUtil.ExeExtension}");
-            string hashFilesScript = Path.Combine(binDir, "hashFiles");
-            var hashResult = string.Empty;
-
-            using (var processInvoker = HostContext.CreateService<IProcessInvoker>())
-            {
-                processInvoker.ErrorDataReceived += (_, data) =>
-                {
-                    if (!string.IsNullOrEmpty(data.Data) && data.Data.StartsWith("__OUTPUT__") && data.Data.EndsWith("__OUTPUT__"))
-                    {
-                        hashResult = data.Data.Substring(10, data.Data.Length - 20);
-                        Trace.Info($"Hash result: '{hashResult}'");
-                    }
-                    else
-                    {
-                        Trace.Info(data.Data);
-                    }
-                };
-
-                processInvoker.OutputDataReceived += (_, data) =>
-                {
-                    Trace.Verbose(data.Data);
-                };
-
-                var env = new Dictionary<string, string>
-                {
-                    ["patterns"] = "**"
-                };
-
-                int exitCode = await processInvoker.ExecuteAsync(workingDirectory: fileFolder,
-                                              fileName: node,
-                                              arguments: $"\"{hashFilesScript.Replace("\"", "\\\"")}\"",
-                                              environment: env,
-                                              requireExitCodeZero: false,
-                                              outputEncoding: null,
-                                              killProcessOnCancel: true,
-                                              cancellationToken: token);
-
-                if (exitCode != 0)
-                {
-                    Trace.Error($"hashFiles returns '{exitCode}' failed. Fail to hash files under directory '{fileFolder}'");
-                }
-
-                stopWatch.Stop();
-                _updateTrace.Enqueue($"{nameof(HashFiles)}{Path.GetFileName(fileFolder)}Time: {stopWatch.ElapsedMilliseconds}ms");
-                return hashResult;
-            }
-        }
    }
 }
--- a/src/Runner.Listener/SelfUpdaterV2.cs
+++ b/src/Runner.Listener/SelfUpdaterV2.cs
@@ -0,0 +1,568 @@
+using System;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.IO;
+using System.IO.Compression;
+using System.Linq;
+using System.Net.Http;
+using System.Reflection;
+using System.Security.Cryptography;
+using System.Threading;
+using System.Threading.Tasks;
+using GitHub.DistributedTask.WebApi;
+using GitHub.Runner.Common;
+using GitHub.Runner.Common.Util;
+using GitHub.Runner.Sdk;
+using GitHub.Services.Common;
+using GitHub.Services.WebApi;
+
+namespace GitHub.Runner.Listener
+{
+    // This class is a fork of SelfUpdater.cs and is intended to only be used for the
+    // new self-update flow where the PackageMetadata is sent in the message directly. 
+    // Forking the class prevents us from accidentally breaking the old flow while it's still in production
+
+    [ServiceLocator(Default = typeof(SelfUpdaterV2))]
+    public interface ISelfUpdaterV2 : IRunnerService
+    {
+        bool Busy { get; }
+        Task<bool> SelfUpdate(RunnerRefreshMessage updateMessage, IJobDispatcher jobDispatcher, bool restartInteractiveRunner, CancellationToken token);
+    }
+    public class SelfUpdaterV2 : RunnerService, ISelfUpdaterV2
+    {
+        private static string _platform = BuildConstants.RunnerPackage.PackageName;
+        private ITerminal _terminal;
+        private IRunnerServer _runnerServer;
+        private int _poolId;
+        private ulong _agentId;
+
+        private const int _numberOfOldVersionsToKeep = 1;
+
+        private readonly ConcurrentQueue<string> _updateTrace = new();
+        public bool Busy { get; private set; }
+
+        public override void Initialize(IHostContext hostContext)
+        {
+            base.Initialize(hostContext);
+
+            _terminal = hostContext.GetService<ITerminal>();
+            _runnerServer = HostContext.GetService<IRunnerServer>();
+            var configStore = HostContext.GetService<IConfigurationStore>();
+            var settings = configStore.GetSettings();
+            _poolId = settings.PoolId;
+            _agentId = settings.AgentId;
+        }
+
+        public async Task<bool> SelfUpdate(RunnerRefreshMessage updateMessage, IJobDispatcher jobDispatcher, bool restartInteractiveRunner, CancellationToken token)
+        {
+            Busy = true;
+            try
+            {
+                var totalUpdateTime = Stopwatch.StartNew();
+
+                Trace.Info($"An update is available.");
+                _updateTrace.Enqueue($"RunnerPlatform: {updateMessage.OS}");
+
+                // Print console line that warn user not shutdown runner.
+                _terminal.WriteLine("Runner update in progress, do not shutdown runner.");
+                _terminal.WriteLine($"Downloading {updateMessage.TargetVersion} runner");
+
+                await DownloadLatestRunner(token, updateMessage.TargetVersion, updateMessage.DownloadUrl, updateMessage.SHA256Checksum, updateMessage.OS);
+                Trace.Info($"Download latest runner and unzip into runner root.");
+
+                // wait till all running job finish
+                _terminal.WriteLine("Waiting for current job finish running.");
+
+                await jobDispatcher.WaitAsync(token);
+                Trace.Info($"All running job has exited.");
+
+                // We need to keep runner backup around for macOS until we fixed https://github.com/actions/runner/issues/743
+                // delete runner backup
+                var stopWatch = Stopwatch.StartNew();
+                DeletePreviousVersionRunnerBackup(token, updateMessage.TargetVersion);
+                Trace.Info($"Delete old version runner backup.");
+                stopWatch.Stop();
+                // generate update script from template
+                _updateTrace.Enqueue($"DeleteRunnerBackupTime: {stopWatch.ElapsedMilliseconds}ms");
+                _terminal.WriteLine("Generate and execute update script.");
+
+                string updateScript = GenerateUpdateScript(restartInteractiveRunner, updateMessage.TargetVersion);
+                Trace.Info($"Generate update script into: {updateScript}");
+
+
+#if DEBUG
+                // For L0, we will skip execute update script.
+                if (string.IsNullOrEmpty(Environment.GetEnvironmentVariable("_GITHUB_ACTION_EXECUTE_UPDATE_SCRIPT")))
+#endif
+                {
+                    string flagFile = "update.finished";
+                    IOUtil.DeleteFile(flagFile);
+                    // kick off update script
+                    Process invokeScript = new();
+#if OS_WINDOWS
+                    invokeScript.StartInfo.FileName = WhichUtil.Which("cmd.exe", trace: Trace);
+                    invokeScript.StartInfo.Arguments = $"/c \"{updateScript}\"";
+#elif (OS_OSX || OS_LINUX)
+                    invokeScript.StartInfo.FileName = WhichUtil.Which("bash", trace: Trace);
+                    invokeScript.StartInfo.Arguments = $"\"{updateScript}\"";
+#endif
+                    invokeScript.Start();
+                    Trace.Info($"Update script start running");
+                }
+
+                totalUpdateTime.Stop();
+
+                _updateTrace.Enqueue($"TotalUpdateTime: {totalUpdateTime.ElapsedMilliseconds}ms");
+                _terminal.WriteLine("Runner will exit shortly for update, should be back online within 10 seconds.");
+
+                return true;
+            }
+            catch (Exception ex)
+            {
+                _updateTrace.Enqueue(ex.ToString());
+                throw;
+            }
+            finally
+            {
+                _terminal.WriteLine("Runner update process finished.");
+                Busy = false;
+            }
+        }
+
+        /// <summary>
+        /// _work
+        ///     \_update
+        ///            \bin
+        ///            \externals
+        ///            \run.sh
+        ///            \run.cmd
+        ///            \package.zip //temp download .zip/.tar.gz
+        /// </summary>
+        /// <param name="token"></param>
+        /// <returns></returns>
+        private async Task DownloadLatestRunner(CancellationToken token, string targetVersion, string packageDownloadUrl, string packageHashValue, string targetPlatform)
+        {
+            string latestRunnerDirectory = Path.Combine(HostContext.GetDirectory(WellKnownDirectory.Work), Constants.Path.UpdateDirectory);
+            IOUtil.DeleteDirectory(latestRunnerDirectory, token);
+            Directory.CreateDirectory(latestRunnerDirectory);
+
+            string archiveFile = null;
+
+            _updateTrace.Enqueue($"DownloadUrl: {packageDownloadUrl}");
+
+            try
+            {
+#if DEBUG
+                // Much of the update process (targetVersion, archive) is server-side, this is a way to control it from here for testing specific update scenarios
+                // Add files like 'runner2.281.2.tar.gz' or 'runner2.283.0.zip' (depending on your platform) to your runner root folder
+                // Note that runners still need to be older than the server's runner version in order to receive an 'AgentRefreshMessage' and trigger this update
+                // Wrapped in #if DEBUG as this should not be in the RELEASE build
+                if (StringUtil.ConvertToBoolean(Environment.GetEnvironmentVariable("GITHUB_ACTIONS_RUNNER_IS_MOCK_UPDATE")))
+                {
+                    var waitForDebugger = StringUtil.ConvertToBoolean(Environment.GetEnvironmentVariable("GITHUB_ACTIONS_RUNNER_IS_MOCK_UPDATE_WAIT_FOR_DEBUGGER"));
+                    if (waitForDebugger)
+                    {
+                        int waitInSeconds = 20;
+                        while (!Debugger.IsAttached && waitInSeconds-- > 0)
+                        {
+                            await Task.Delay(1000);
+                        }
+                        Debugger.Break();
+                    }
+
+                    if (targetPlatform.StartsWith("win"))
+                    {
+                        archiveFile = Path.Combine(HostContext.GetDirectory(WellKnownDirectory.Root), $"runner{targetVersion}.zip");
+                    }
+                    else
+                    {
+                        archiveFile = Path.Combine(HostContext.GetDirectory(WellKnownDirectory.Root), $"runner{targetVersion}.tar.gz");
+                    }
+
+                    if (File.Exists(archiveFile))
+                    {
+                        _updateTrace.Enqueue($"Mocking update with file: '{archiveFile}' and targetVersion: '{targetVersion}', nothing is downloaded");
+                        _terminal.WriteLine($"Mocking update with file: '{archiveFile}' and targetVersion: '{targetVersion}', nothing is downloaded");
+                    }
+                    else
+                    {
+                        archiveFile = null;
+                        _terminal.WriteLine($"Mock runner archive not found at {archiveFile} for target version {targetVersion}, proceeding with download instead");
+                        _updateTrace.Enqueue($"Mock runner archive not found at {archiveFile} for target version {targetVersion}, proceeding with download instead");
+                    }
+                }
+#endif
+                // archiveFile is not null only if we mocked it above
+                if (string.IsNullOrEmpty(archiveFile))
+                {
+                    archiveFile = await DownLoadRunner(latestRunnerDirectory, packageDownloadUrl, packageHashValue, targetPlatform, token);
+
+                    if (string.IsNullOrEmpty(archiveFile))
+                    {
+                        throw new TaskCanceledException($"Runner package '{packageDownloadUrl}' failed after {Constants.RunnerDownloadRetryMaxAttempts} download attempts");
+                    }
+                    await ValidateRunnerHash(archiveFile, packageHashValue);
+                }
+
+                await ExtractRunnerPackage(archiveFile, latestRunnerDirectory, token);
+            }
+            finally
+            {
+                try
+                {
+                    // delete .zip file
+                    if (!string.IsNullOrEmpty(archiveFile) && File.Exists(archiveFile))
+                    {
+                        Trace.Verbose("Deleting latest runner package zip: {0}", archiveFile);
+                        IOUtil.DeleteFile(archiveFile);
+                    }
+                }
+                catch (Exception ex)
+                {
+                    //it is not critical if we fail to delete the .zip file
+                    Trace.Warning("Failed to delete runner package zip '{0}'. Exception: {1}", archiveFile, ex);
+                }
+            }
+
+            await CopyLatestRunnerToRoot(latestRunnerDirectory, targetVersion, token);
+        }
+
+        private async Task<string> DownLoadRunner(string downloadDirectory, string packageDownloadUrl, string packageHashValue, string packagePlatform, CancellationToken token)
+        {
+            var stopWatch = Stopwatch.StartNew();
+            int runnerSuffix = 1;
+            string archiveFile = null;
+            bool downloadSucceeded = false;
+
+            // Download the runner, using multiple attempts in order to be resilient against any networking/CDN issues
+            for (int attempt = 1; attempt <= Constants.RunnerDownloadRetryMaxAttempts; attempt++)
+            {
+                // Generate an available package name, and do our best effort to clean up stale local zip files
+                while (true)
+                {
+                    if (packagePlatform.StartsWith("win"))
+                    {
+                        archiveFile = Path.Combine(downloadDirectory, $"runner{runnerSuffix}.zip");
+                    }
+                    else
+                    {
+                        archiveFile = Path.Combine(downloadDirectory, $"runner{runnerSuffix}.tar.gz");
+                    }
+
+                    try
+                    {
+                        // delete .zip file
+                        if (!string.IsNullOrEmpty(archiveFile) && File.Exists(archiveFile))
+                        {
+                            Trace.Verbose("Deleting latest runner package zip '{0}'", archiveFile);
+                            IOUtil.DeleteFile(archiveFile);
+                        }
+
+                        break;
+                    }
+                    catch (Exception ex)
+                    {
+                        // couldn't delete the file for whatever reason, so generate another name
+                        Trace.Warning("Failed to delete runner package zip '{0}'. Exception: {1}", archiveFile, ex);
+                        runnerSuffix++;
+                    }
+                }
+
+                // Allow a 15-minute package download timeout, which is good enough to update the runner from a 1 Mbit/s ADSL connection.
+                if (!int.TryParse(Environment.GetEnvironmentVariable("GITHUB_ACTIONS_RUNNER_DOWNLOAD_TIMEOUT") ?? string.Empty, out int timeoutSeconds))
+                {
+                    timeoutSeconds = 15 * 60;
+                }
+
+                Trace.Info($"Attempt {attempt}: save latest runner into {archiveFile}.");
+
+                using (var downloadTimeout = new CancellationTokenSource(TimeSpan.FromSeconds(timeoutSeconds)))
+                using (var downloadCts = CancellationTokenSource.CreateLinkedTokenSource(downloadTimeout.Token, token))
+                {
+                    try
+                    {
+                        Trace.Info($"Download runner: begin download");
+                        long downloadSize = 0;
+
+                        //open zip stream in async mode
+                        using (HttpClient httpClient = new(HostContext.CreateHttpClientHandler()))
+                        {
+                            Trace.Info($"Downloading {packageDownloadUrl}");
+
+                            using (FileStream fs = new(archiveFile, FileMode.Create, FileAccess.Write, FileShare.None, bufferSize: 4096, useAsync: true))
+                            using (Stream result = await httpClient.GetStreamAsync(packageDownloadUrl))
+                            {
+                                //81920 is the default used by System.IO.Stream.CopyTo and is under the large object heap threshold (85k).
+                                await result.CopyToAsync(fs, 81920, downloadCts.Token);
+                                await fs.FlushAsync(downloadCts.Token);
+                                downloadSize = fs.Length;
+                            }
+                        }
+
+                        Trace.Info($"Download runner: finished download");
+                        downloadSucceeded = true;
+                        stopWatch.Stop();
+                        _updateTrace.Enqueue($"PackageDownloadTime: {stopWatch.ElapsedMilliseconds}ms");
+                        _updateTrace.Enqueue($"Attempts: {attempt}");
+                        _updateTrace.Enqueue($"PackageSize: {downloadSize / 1024 / 1024}MB");
+                        break;
+                    }
+                    catch (OperationCanceledException) when (token.IsCancellationRequested)
+                    {
+                        Trace.Info($"Runner download has been cancelled.");
+                        throw;
+                    }
+                    catch (Exception ex)
+                    {
+                        if (downloadCts.Token.IsCancellationRequested)
+                        {
+                            Trace.Warning($"Runner download has timed out after {timeoutSeconds} seconds");
+                        }
+
+                        Trace.Warning($"Failed to get package '{archiveFile}' from '{packageDownloadUrl}'. Exception {ex}");
+                    }
+                }
+            }
+
+            if (downloadSucceeded)
+            {
+                return archiveFile;
+            }
+            else
+            {
+                return null;
+            }
+        }
+
+        private async Task ValidateRunnerHash(string archiveFile, string packageHashValue)
+        {
+            var stopWatch = Stopwatch.StartNew();
+            // Validate Hash Matches if it is provided
+            using (FileStream stream = File.OpenRead(archiveFile))
+            {
+                if (!string.IsNullOrEmpty(packageHashValue))
+                {
+                    using (SHA256 sha256 = SHA256.Create())
+                    {
+                        byte[] srcHashBytes = await sha256.ComputeHashAsync(stream);
+                        var hash = PrimitiveExtensions.ConvertToHexString(srcHashBytes);
+                        if (hash != packageHashValue)
+                        {
+                            // Hash did not match, we can't recover from this, just throw
+                            throw new Exception($"Computed runner hash {hash} did not match expected Runner Hash {packageHashValue} for {archiveFile}");
+                        }
+
+                        stopWatch.Stop();
+                        Trace.Info($"Validated Runner Hash matches {archiveFile} : {packageHashValue}");
+                        _updateTrace.Enqueue($"ValidateHashTime: {stopWatch.ElapsedMilliseconds}ms");
+                    }
+                }
+            }
+        }
+
+        private async Task ExtractRunnerPackage(string archiveFile, string extractDirectory, CancellationToken token)
+        {
+            var stopWatch = Stopwatch.StartNew();
+
+            if (archiveFile.EndsWith(".zip", StringComparison.OrdinalIgnoreCase))
+            {
+                ZipFile.ExtractToDirectory(archiveFile, extractDirectory);
+            }
+            else if (archiveFile.EndsWith(".tar.gz", StringComparison.OrdinalIgnoreCase))
+            {
+                string tar = WhichUtil.Which("tar", trace: Trace);
+
+                if (string.IsNullOrEmpty(tar))
+                {
+                    throw new NotSupportedException($"tar -xzf");
+                }
+
+                // tar -xzf
+                using (var processInvoker = HostContext.CreateService<IProcessInvoker>())
+                {
+                    processInvoker.OutputDataReceived += new EventHandler<ProcessDataReceivedEventArgs>((sender, args) =>
+                    {
+                        if (!string.IsNullOrEmpty(args.Data))
+                        {
+                            Trace.Info(args.Data);
+                        }
+                    });
+
+                    processInvoker.ErrorDataReceived += new EventHandler<ProcessDataReceivedEventArgs>((sender, args) =>
+                    {
+                        if (!string.IsNullOrEmpty(args.Data))
+                        {
+                            Trace.Error(args.Data);
+                        }
+                    });
+
+                    int exitCode = await processInvoker.ExecuteAsync(extractDirectory, tar, $"-xzf \"{archiveFile}\"", null, token);
+                    if (exitCode != 0)
+                    {
+                        throw new NotSupportedException($"Can't use 'tar -xzf' to extract archive file: {archiveFile}. return code: {exitCode}.");
+                    }
+                }
+            }
+            else
+            {
+                throw new NotSupportedException($"{archiveFile}");
+            }
+
+            stopWatch.Stop();
+            Trace.Info($"Finished getting latest runner package at: {extractDirectory}.");
+            _updateTrace.Enqueue($"PackageExtractTime: {stopWatch.ElapsedMilliseconds}ms");
+        }
+
+        private Task CopyLatestRunnerToRoot(string latestRunnerDirectory, string targetVersion, CancellationToken token)
+        {
+            var stopWatch = Stopwatch.StartNew();
+            // copy latest runner into runner root folder
+            // copy bin from _work/_update -> bin.version under root
+            string binVersionDir = Path.Combine(HostContext.GetDirectory(WellKnownDirectory.Root), $"{Constants.Path.BinDirectory}.{targetVersion}");
+            Directory.CreateDirectory(binVersionDir);
+            Trace.Info($"Copy {Path.Combine(latestRunnerDirectory, Constants.Path.BinDirectory)} to {binVersionDir}.");
+            IOUtil.CopyDirectory(Path.Combine(latestRunnerDirectory, Constants.Path.BinDirectory), binVersionDir, token);
+
+            // copy externals from _work/_update -> externals.version under root
+            string externalsVersionDir = Path.Combine(HostContext.GetDirectory(WellKnownDirectory.Root), $"{Constants.Path.ExternalsDirectory}.{targetVersion}");
+            Directory.CreateDirectory(externalsVersionDir);
+            Trace.Info($"Copy {Path.Combine(latestRunnerDirectory, Constants.Path.ExternalsDirectory)} to {externalsVersionDir}.");
+            IOUtil.CopyDirectory(Path.Combine(latestRunnerDirectory, Constants.Path.ExternalsDirectory), externalsVersionDir, token);
+
+            // copy and replace all .sh/.cmd files
+            Trace.Info($"Copy any remaining .sh/.cmd files into runner root.");
+            foreach (FileInfo file in new DirectoryInfo(latestRunnerDirectory).GetFiles() ?? new FileInfo[0])
+            {
+                string destination = Path.Combine(HostContext.GetDirectory(WellKnownDirectory.Root), file.Name);
+
+                // Removing the file instead of just trying to overwrite it works around permissions issues on linux.
+                // https://github.com/actions/runner/issues/981
+                Trace.Info($"Copy {file.FullName} to {destination}");
+                IOUtil.DeleteFile(destination);
+                file.CopyTo(destination, true);
+            }
+
+            stopWatch.Stop();
+            _updateTrace.Enqueue($"CopyRunnerToRootTime: {stopWatch.ElapsedMilliseconds}ms");
+            return Task.CompletedTask;
+        }
+
+        private void DeletePreviousVersionRunnerBackup(CancellationToken token, string targetVersion)
+        {
+            // delete previous backup runner (back compat, can be remove after serval sprints)
+            // bin.bak.2.99.0
+            // externals.bak.2.99.0
+            foreach (string existBackUp in Directory.GetDirectories(HostContext.GetDirectory(WellKnownDirectory.Root), "*.bak.*"))
+            {
+                Trace.Info($"Delete existing runner backup at {existBackUp}.");
+                try
+                {
+                    IOUtil.DeleteDirectory(existBackUp, token);
+                }
+                catch (Exception ex) when (!(ex is OperationCanceledException))
+                {
+                    Trace.Error(ex);
+                    Trace.Info($"Catch exception during delete backup folder {existBackUp}, ignore this error try delete the backup folder on next auto-update.");
+                }
+            }
+
+            // delete old bin.2.99.0 folder, only leave the current version and the latest download version
+            var allBinDirs = Directory.GetDirectories(HostContext.GetDirectory(WellKnownDirectory.Root), "bin.*");
+            if (allBinDirs.Length > _numberOfOldVersionsToKeep)
+            {
+                // there are more than {_numberOfOldVersionsToKeep} bin.version folder.
+                // delete older bin.version folders.
+                foreach (var oldBinDir in allBinDirs)
+                {
+                    if (string.Equals(oldBinDir, Path.Combine(HostContext.GetDirectory(WellKnownDirectory.Root), $"bin"), StringComparison.OrdinalIgnoreCase) ||
+                        string.Equals(oldBinDir, Path.Combine(HostContext.GetDirectory(WellKnownDirectory.Root), $"bin.{BuildConstants.RunnerPackage.Version}"), StringComparison.OrdinalIgnoreCase) ||
+                        string.Equals(oldBinDir, Path.Combine(HostContext.GetDirectory(WellKnownDirectory.Root), $"bin.{targetVersion}"), StringComparison.OrdinalIgnoreCase))
+                    {
+                        // skip for current runner version
+                        continue;
+                    }
+
+                    Trace.Info($"Delete runner bin folder's backup at {oldBinDir}.");
+                    try
+                    {
+                        IOUtil.DeleteDirectory(oldBinDir, token);
+                    }
+                    catch (Exception ex) when (!(ex is OperationCanceledException))
+                    {
+                        Trace.Error(ex);
+                        Trace.Info($"Catch exception during delete backup folder {oldBinDir}, ignore this error try delete the backup folder on next auto-update.");
+                    }
+                }
+            }
+
+            // delete old externals.2.99.0 folder, only leave the current version and the latest download version
+            var allExternalsDirs = Directory.GetDirectories(HostContext.GetDirectory(WellKnownDirectory.Root), "externals.*");
+            if (allExternalsDirs.Length > _numberOfOldVersionsToKeep)
+            {
+                // there are more than {_numberOfOldVersionsToKeep} externals.version folder.
+                // delete older externals.version folders.
+                foreach (var oldExternalDir in allExternalsDirs)
+                {
+                    if (string.Equals(oldExternalDir, Path.Combine(HostContext.GetDirectory(WellKnownDirectory.Root), $"externals"), StringComparison.OrdinalIgnoreCase) ||
+                        string.Equals(oldExternalDir, Path.Combine(HostContext.GetDirectory(WellKnownDirectory.Root), $"externals.{BuildConstants.RunnerPackage.Version}"), StringComparison.OrdinalIgnoreCase) ||
+                        string.Equals(oldExternalDir, Path.Combine(HostContext.GetDirectory(WellKnownDirectory.Root), $"externals.{targetVersion}"), StringComparison.OrdinalIgnoreCase))
+                    {
+                        // skip for current runner version
+                        continue;
+                    }
+
+                    Trace.Info($"Delete runner externals folder's backup at {oldExternalDir}.");
+                    try
+                    {
+                        IOUtil.DeleteDirectory(oldExternalDir, token);
+                    }
+                    catch (Exception ex) when (!(ex is OperationCanceledException))
+                    {
+                        Trace.Error(ex);
+                        Trace.Info($"Catch exception during delete backup folder {oldExternalDir}, ignore this error try delete the backup folder on next auto-update.");
+                    }
+                }
+            }
+        }
+
+        private string GenerateUpdateScript(bool restartInteractiveRunner, string targetVersion)
+        {
+            int processId = Process.GetCurrentProcess().Id;
+            string updateLog = Path.Combine(HostContext.GetDirectory(WellKnownDirectory.Diag), $"SelfUpdate-{DateTime.UtcNow.ToString("yyyyMMdd-HHmmss")}.log");
+            string runnerRoot = HostContext.GetDirectory(WellKnownDirectory.Root);
+
+#if OS_WINDOWS
+            string templateName = "update.cmd.template";
+#else
+            string templateName = "update.sh.template";
+#endif
+
+            string templatePath = Path.Combine(runnerRoot, $"bin.{targetVersion}", templateName);
+            string template = File.ReadAllText(templatePath);
+
+            template = template.Replace("_PROCESS_ID_", processId.ToString());
+            template = template.Replace("_RUNNER_PROCESS_NAME_", $"Runner.Listener{IOUtil.ExeExtension}");
+            template = template.Replace("_ROOT_FOLDER_", runnerRoot);
+            template = template.Replace("_EXIST_RUNNER_VERSION_", BuildConstants.RunnerPackage.Version);
+            template = template.Replace("_DOWNLOAD_RUNNER_VERSION_", targetVersion);
+            template = template.Replace("_UPDATE_LOG_", updateLog);
+            template = template.Replace("_RESTART_INTERACTIVE_RUNNER_", restartInteractiveRunner ? "1" : "0");
+
+#if OS_WINDOWS
+            string scriptName = "_update.cmd";
+#else
+            string scriptName = "_update.sh";
+#endif
+
+            string updateScript = Path.Combine(HostContext.GetDirectory(WellKnownDirectory.Work), scriptName);
+            if (File.Exists(updateScript))
+            {
+                IOUtil.DeleteFile(updateScript);
+            }
+
+            File.WriteAllText(updateScript, template);
+            return updateScript;
+        }
+    }
+}
--- a/src/Runner.PluginHost/Runner.PluginHost.csproj
+++ b/src/Runner.PluginHost/Runner.PluginHost.csproj
@@ -1,11 +1,12 @@
 <Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
    <OutputType>Exe</OutputType>
    <RuntimeIdentifiers>win-x64;win-x86;linux-x64;linux-arm64;linux-arm;osx-x64;osx-arm64;win-arm64</RuntimeIdentifiers>
+    <SelfContained>true</SelfContained>
    <TargetLatestRuntimePatch>true</TargetLatestRuntimePatch>
-    <NoWarn>NU1701;NU1603</NoWarn>
+    <NoWarn>NU1701;NU1603;SYSLIB0050;SYSLIB0051</NoWarn>
    <Version>$(Version)</Version>
    <PredefinedCulturesOnly>false</PredefinedCulturesOnly>
    <PublishReadyToRunComposite>true</PublishReadyToRunComposite>
--- a/src/Runner.Plugins/Runner.Plugins.csproj
+++ b/src/Runner.Plugins/Runner.Plugins.csproj
@@ -1,11 +1,12 @@
 <Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
    <OutputType>Library</OutputType>
    <RuntimeIdentifiers>win-x64;win-x86;linux-x64;linux-arm64;linux-arm;osx-x64;osx-arm64;win-arm64</RuntimeIdentifiers>
+    <SelfContained>true</SelfContained>
    <TargetLatestRuntimePatch>true</TargetLatestRuntimePatch>
-    <NoWarn>NU1701;NU1603</NoWarn>
+    <NoWarn>NU1701;NU1603;SYSLIB0050;SYSLIB0051</NoWarn>
    <Version>$(Version)</Version>
  </PropertyGroup>

--- a/src/Runner.Sdk/Runner.Sdk.csproj
+++ b/src/Runner.Sdk/Runner.Sdk.csproj
@@ -1,11 +1,12 @@
 <Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
    <OutputType>Library</OutputType>
    <RuntimeIdentifiers>win-x64;win-x86;linux-x64;linux-arm64;linux-arm;osx-x64;osx-arm64;win-arm64</RuntimeIdentifiers>
+    <SelfContained>true</SelfContained>
    <TargetLatestRuntimePatch>true</TargetLatestRuntimePatch>
-    <NoWarn>NU1701;NU1603</NoWarn>
+    <NoWarn>NU1701;NU1603;SYSLIB0050;SYSLIB0051</NoWarn>
    <Version>$(Version)</Version>
  </PropertyGroup>

@@ -14,9 +15,9 @@
  </ItemGroup>

  <ItemGroup>
-    <PackageReference Include="System.Text.Encoding.CodePages" Version="4.4.0" />
-    <PackageReference Include="Microsoft.Win32.Registry" Version="4.4.0" />
-    <PackageReference Include="System.Threading.Channels" Version="4.4.0" />
+    <PackageReference Include="System.Text.Encoding.CodePages" Version="8.0.0" />
+    <PackageReference Include="Microsoft.Win32.Registry" Version="5.0.0" />
+    <PackageReference Include="System.Threading.Channels" Version="8.0.0" />
  </ItemGroup>

  <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
--- a/src/Runner.Sdk/Util/IOUtil.cs
+++ b/src/Runner.Sdk/Util/IOUtil.cs
@@ -6,6 +6,8 @@ using System.Linq;
 using System.Security.Cryptography;
 using System.Text;
 using System.Threading;
+using System.Threading.Tasks;
+using GitHub.Services.Common;

 namespace GitHub.Runner.Sdk
 {
@@ -72,6 +74,25 @@ namespace GitHub.Runner.Sdk
            }
        }

+        public static async Task<string> GetFileContentSha256HashAsync(string path)
+        {
+            if (!File.Exists(path))
+            {
+                return string.Empty;
+            }
+
+            using (FileStream stream = File.OpenRead(path))
+            {
+                using (SHA256 sha256 = SHA256.Create())
+                {
+                    byte[] srcHashBytes = await sha256.ComputeHashAsync(stream);
+                    var hash = PrimitiveExtensions.ConvertToHexString(srcHashBytes);
+                    return hash;
+                }
+
+            }
+        }
+
        public static void Delete(string path, CancellationToken cancellationToken)
        {
            DeleteDirectory(path, cancellationToken);
@@ -438,6 +459,34 @@ namespace GitHub.Runner.Sdk
            File.WriteAllText(path, null);
        }

+        /// <summary>
+        /// Replaces invalid file name characters with '_'
+        /// </summary>
+        public static string ReplaceInvalidFileNameChars(string fileName)
+        {
+            var result = new StringBuilder();
+            var invalidChars = Path.GetInvalidFileNameChars();
+
+            var current = 0; // Current index
+            while (current < fileName?.Length)
+            {
+                var next = fileName.IndexOfAny(invalidChars, current);
+                if (next >= 0)
+                {
+                    result.Append(fileName.Substring(current, next - current));
+                    result.Append('_');
+                    current = next + 1;
+                }
+                else
+                {
+                    result.Append(fileName.Substring(current));
+                    break;
+                }
+            }
+
+            return result.ToString();
+        }
+
        /// <summary>
        /// Recursively enumerates a directory without following directory reparse points.
        /// </summary>
--- a/src/Runner.Sdk/Util/VssUtil.cs
+++ b/src/Runner.Sdk/Util/VssUtil.cs
@@ -23,7 +23,13 @@ namespace GitHub.Runner.Sdk

            if (VssClientHttpRequestSettings.Default.UserAgent != null && VssClientHttpRequestSettings.Default.UserAgent.Count > 0)
            {
-                headerValues.AddRange(VssClientHttpRequestSettings.Default.UserAgent);
+                foreach (var headerVal in VssClientHttpRequestSettings.Default.UserAgent)
+                {
+                    if (!headerValues.Contains(headerVal))
+                    {
+                        headerValues.Add(headerVal);
+                    }
+                }
            }

            VssClientHttpRequestSettings.Default.UserAgent = headerValues;
@@ -33,6 +39,23 @@ namespace GitHub.Runner.Sdk
            {
                VssClientHttpRequestSettings.Default.ServerCertificateValidationCallback = HttpClientHandler.DangerousAcceptAnyServerCertificateValidator;
            }
+
+            var rawHeaderValues = new List<ProductInfoHeaderValue>();
+            rawHeaderValues.AddRange(additionalUserAgents);
+            rawHeaderValues.Add(new ProductInfoHeaderValue($"({StringUtil.SanitizeUserAgentHeader(RuntimeInformation.OSDescription)})"));
+
+            if (RawClientHttpRequestSettings.Default.UserAgent != null && RawClientHttpRequestSettings.Default.UserAgent.Count > 0)
+            {
+                foreach (var headerVal in RawClientHttpRequestSettings.Default.UserAgent)
+                {
+                    if (!rawHeaderValues.Contains(headerVal))
+                    {
+                        rawHeaderValues.Add(headerVal);
+                    }
+                }
+            }
+
+            RawClientHttpRequestSettings.Default.UserAgent = rawHeaderValues;
        }

        public static VssConnection CreateConnection(
@@ -62,11 +85,6 @@ namespace GitHub.Runner.Sdk
                settings.SendTimeout = TimeSpan.FromSeconds(Math.Min(Math.Max(httpRequestTimeoutSeconds, 100), 1200));
            }

-            if (StringUtil.ConvertToBoolean(Environment.GetEnvironmentVariable("USE_BROKER_FLOW")))
-            {
-                settings.AllowAutoRedirectForBroker = true;
-            }
-
            // Remove Invariant from the list of accepted languages.
            //
            // The constructor of VssHttpRequestSettings (base class of VssClientHttpRequestSettings) adds the current
@@ -85,6 +103,35 @@ namespace GitHub.Runner.Sdk
            VssCredentials credentials,
            IEnumerable<DelegatingHandler> additionalDelegatingHandler = null,
            TimeSpan? timeout = null)
+        {
+            RawClientHttpRequestSettings settings = GetHttpRequestSettings(timeout);
+            RawConnection connection = new(serverUri, new RawHttpMessageHandler(credentials.Federated, settings), additionalDelegatingHandler);
+            return connection;
+        }
+
+        public static VssCredentials GetVssCredential(ServiceEndpoint serviceEndpoint)
+        {
+            ArgUtil.NotNull(serviceEndpoint, nameof(serviceEndpoint));
+            ArgUtil.NotNull(serviceEndpoint.Authorization, nameof(serviceEndpoint.Authorization));
+            ArgUtil.NotNullOrEmpty(serviceEndpoint.Authorization.Scheme, nameof(serviceEndpoint.Authorization.Scheme));
+
+            if (serviceEndpoint.Authorization.Parameters.Count == 0)
+            {
+                throw new ArgumentOutOfRangeException(nameof(serviceEndpoint));
+            }
+
+            VssCredentials credentials = null;
+            string accessToken;
+            if (serviceEndpoint.Authorization.Scheme == EndpointAuthorizationSchemes.OAuth &&
+                serviceEndpoint.Authorization.Parameters.TryGetValue(EndpointAuthorizationParameters.AccessToken, out accessToken))
+            {
+                credentials = new VssCredentials(new VssOAuthAccessTokenCredential(accessToken), CredentialPromptType.DoNotPrompt);
+            }
+
+            return credentials;
+        }
+
+        public static RawClientHttpRequestSettings GetHttpRequestSettings(TimeSpan? timeout = null)
        {
            RawClientHttpRequestSettings settings = RawClientHttpRequestSettings.Default.Clone();

@@ -116,30 +163,7 @@ namespace GitHub.Runner.Sdk
            // settings are applied to an HttpRequestMessage.
            settings.AcceptLanguages.Remove(CultureInfo.InvariantCulture);

-            RawConnection connection = new(serverUri, new RawHttpMessageHandler(credentials.Federated, settings), additionalDelegatingHandler);
-            return connection;
-        }
-
-        public static VssCredentials GetVssCredential(ServiceEndpoint serviceEndpoint)
-        {
-            ArgUtil.NotNull(serviceEndpoint, nameof(serviceEndpoint));
-            ArgUtil.NotNull(serviceEndpoint.Authorization, nameof(serviceEndpoint.Authorization));
-            ArgUtil.NotNullOrEmpty(serviceEndpoint.Authorization.Scheme, nameof(serviceEndpoint.Authorization.Scheme));
-
-            if (serviceEndpoint.Authorization.Parameters.Count == 0)
-            {
-                throw new ArgumentOutOfRangeException(nameof(serviceEndpoint));
-            }
-
-            VssCredentials credentials = null;
-            string accessToken;
-            if (serviceEndpoint.Authorization.Scheme == EndpointAuthorizationSchemes.OAuth &&
-                serviceEndpoint.Authorization.Parameters.TryGetValue(EndpointAuthorizationParameters.AccessToken, out accessToken))
-            {
-                credentials = new VssCredentials(new VssOAuthAccessTokenCredential(accessToken), CredentialPromptType.DoNotPrompt);
-            }
-
-            return credentials;
+            return settings;
        }
    }
 }
--- a/src/Runner.Sdk/Util/WhichUtil.cs
+++ b/src/Runner.Sdk/Util/WhichUtil.cs
@@ -9,7 +9,7 @@ namespace GitHub.Runner.Sdk
        public static string Which(string command, bool require = false, ITraceWriter trace = null, string prependPath = null)
        {
            ArgUtil.NotNullOrEmpty(command, nameof(command));
-            trace?.Info($"Which: '{command}'");
+            trace?.Info($"Which2: '{command}'");
            if (Path.IsPathFullyQualified(command) && File.Exists(command))
            {
                trace?.Info($"Fully qualified path: '{command}'");
@@ -36,7 +36,6 @@ namespace GitHub.Runner.Sdk
            {
                if (!string.IsNullOrEmpty(pathSegment) && Directory.Exists(pathSegment))
                {
-                    string[] matches = null;
 #if OS_WINDOWS
                    string pathExt = Environment.GetEnvironmentVariable("PATHEXT");
                    if (string.IsNullOrEmpty(pathExt))
@@ -52,19 +51,20 @@ namespace GitHub.Runner.Sdk
                    {
                        try
                        {
-                            matches = Directory.GetFiles(pathSegment, command);
+                            foreach (var file in Directory.EnumerateFiles(pathSegment, command))
+                            {
+                                if (IsPathValid(file, trace))
+                                {
+                                    trace?.Info($"Location: '{file}'");
+                                    return file;
+                                }
+                            }
                        }
                        catch (UnauthorizedAccessException ex)
                        {
                            trace?.Info("Ignore UnauthorizedAccess exception during Which.");
                            trace?.Verbose(ex.ToString());
                        }
-
-                        if (matches != null && matches.Length > 0 && IsPathValid(matches.First(), trace))
-                        {
-                            trace?.Info($"Location: '{matches.First()}'");
-                            return matches.First();
-                        }
                    }
                    else
                    {
@@ -72,21 +72,13 @@ namespace GitHub.Runner.Sdk
                        searchPattern = StringUtil.Format($"{command}.*");
                        try
                        {
-                            matches = Directory.GetFiles(pathSegment, searchPattern);
-                        }
-                        catch (UnauthorizedAccessException ex)
-                        {
-                            trace?.Info("Ignore UnauthorizedAccess exception during Which.");
-                            trace?.Verbose(ex.ToString());
-                        }
-
-                        if (matches != null && matches.Length > 0)
+                            foreach (var file in Directory.EnumerateFiles(pathSegment, searchPattern))
                            {
                                // add extension.
                                for (int i = 0; i < pathExtSegments.Length; i++)
                                {
                                    string fullPath = Path.Combine(pathSegment, $"{command}{pathExtSegments[i]}");
-                                if (matches.Any(p => p.Equals(fullPath, StringComparison.OrdinalIgnoreCase)) && IsPathValid(fullPath, trace))
+                                    if (string.Equals(file, fullPath, StringComparison.OrdinalIgnoreCase) && IsPathValid(fullPath, trace))
                                    {
                                        trace?.Info($"Location: '{fullPath}'");
                                        return fullPath;
@@ -94,21 +86,28 @@ namespace GitHub.Runner.Sdk
                                }
                            }
                        }
-#else
-                    try
-                    {
-                        matches = Directory.GetFiles(pathSegment, command);
-                    }
                        catch (UnauthorizedAccessException ex)
                        {
                            trace?.Info("Ignore UnauthorizedAccess exception during Which.");
                            trace?.Verbose(ex.ToString());
                        }
-
-                    if (matches != null && matches.Length > 0 && IsPathValid(matches.First(), trace))
+                    }
+#else
+                    try
                    {
-                        trace?.Info($"Location: '{matches.First()}'");
-                        return matches.First();
+                        foreach (var file in Directory.EnumerateFiles(pathSegment, command))
+                        {
+                            if (IsPathValid(file, trace))
+                            {
+                                trace?.Info($"Location: '{file}'");
+                                return file;
+                            }
+                        }
+                    }
+                    catch (UnauthorizedAccessException ex)
+                    {
+                        trace?.Info("Ignore UnauthorizedAccess exception during Which.");
+                        trace?.Verbose(ex.ToString());
                    }
 #endif
                }
@@ -134,7 +133,12 @@ namespace GitHub.Runner.Sdk
        {
            var fileInfo = new FileInfo(path);
            var linkTargetFullPath = fileInfo.Directory?.FullName + Path.DirectorySeparatorChar + fileInfo.LinkTarget;
-            if (fileInfo.LinkTarget == null || File.Exists(linkTargetFullPath) || File.Exists(fileInfo.LinkTarget)) return true;
+            if (fileInfo.LinkTarget == null ||
+                File.Exists(linkTargetFullPath) ||
+                File.Exists(fileInfo.LinkTarget))
+            {
+                return true;
+            }
            trace?.Info($"the target '{fileInfo.LinkTarget}' of the symbolic link '{path}', does not exist");
            return false;
        }
--- a/src/Runner.Worker/ActionManager.cs
+++ b/src/Runner.Worker/ActionManager.cs
@@ -6,6 +6,7 @@ using System.Linq;
 using System.Net;
 using System.Net.Http;
 using System.Net.Http.Headers;
+using System.Security.Cryptography;
 using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
@@ -52,7 +53,6 @@ namespace GitHub.Runner.Worker

        //81920 is the default used by System.IO.Stream.CopyTo and is under the large object heap threshold (85k).
        private const int _defaultCopyBufferSize = 81920;
-        private const string _dotcomApiUrl = "https://api.github.com";

        private readonly Dictionary<Guid, ContainerInfo> _cachedActionContainers = new();
        public Dictionary<Guid, ContainerInfo> CachedActionContainers => _cachedActionContainers;
@@ -483,10 +483,6 @@ namespace GitHub.Runner.Worker
                            {
                                // Load stored Ids for later load actions
                                compositeAction.Steps[i].Id = _cachedEmbeddedStepIds[action.Id][i];
-                                if (string.IsNullOrEmpty(executionContext.Global.Variables.Get("DistributedTask.EnableCompositeActions")) && compositeAction.Steps[i].Reference.Type != Pipelines.ActionSourceType.Script)
-                                {
-                                    throw new Exception("`uses:` keyword is not currently supported.");
-                                }
                            }
                        }
                        else
@@ -703,11 +699,12 @@ namespace GitHub.Runner.Worker
                catch (Exception ex) when (!executionContext.CancellationToken.IsCancellationRequested) // Do not retry if the run is cancelled.
                {
                    // UnresolvableActionDownloadInfoException is a 422 client error, don't retry
+                    // NonRetryableActionDownloadInfoException is an non-retryable exception from Actions
                    // Some possible cases are:
                    // * Repo is rate limited
                    // * Repo or tag doesn't exist, or isn't public
                    // * Policy validation failed
-                    if (attempt < 3 && !(ex is WebApi.UnresolvableActionDownloadInfoException))
+                    if (attempt < 3 && !(ex is WebApi.UnresolvableActionDownloadInfoException) && !(ex is WebApi.NonRetryableActionDownloadInfoException))
                    {
                        executionContext.Output($"Failed to resolve action download info. Error: {ex.Message}");
                        executionContext.Debug(ex.ToString());
@@ -739,10 +736,7 @@ namespace GitHub.Runner.Worker

            ArgUtil.NotNull(actionDownloadInfos, nameof(actionDownloadInfos));
            ArgUtil.NotNull(actionDownloadInfos.Actions, nameof(actionDownloadInfos.Actions));
-            var apiUrl = GetApiUrl(executionContext);
            var defaultAccessToken = executionContext.GetGitHubContext("token");
-            var configurationStore = HostContext.GetService<IConfigurationStore>();
-            var runnerSettings = configurationStore.GetSettings();

            foreach (var actionDownloadInfo in actionDownloadInfos.Actions.Values)
            {
@@ -766,6 +760,8 @@ namespace GitHub.Runner.Worker
            ArgUtil.NotNull(downloadInfo, nameof(downloadInfo));
            ArgUtil.NotNullOrEmpty(downloadInfo.NameWithOwner, nameof(downloadInfo.NameWithOwner));
            ArgUtil.NotNullOrEmpty(downloadInfo.Ref, nameof(downloadInfo.Ref));
+            ArgUtil.NotNullOrEmpty(downloadInfo.Ref, nameof(downloadInfo.ResolvedNameWithOwner));
+            ArgUtil.NotNullOrEmpty(downloadInfo.Ref, nameof(downloadInfo.ResolvedSha));

            string destDirectory = Path.Combine(HostContext.GetDirectory(WellKnownDirectory.Actions), downloadInfo.NameWithOwner.Replace(Path.AltDirectorySeparatorChar, Path.DirectorySeparatorChar), downloadInfo.Ref);
            string watermarkFile = GetWatermarkFilePath(destDirectory);
@@ -782,31 +778,6 @@ namespace GitHub.Runner.Worker
                executionContext.Output($"Download action repository '{downloadInfo.NameWithOwner}@{downloadInfo.Ref}' (SHA:{downloadInfo.ResolvedSha})");
            }

-            await DownloadRepositoryActionAsync(executionContext, downloadInfo, destDirectory);
-        }
-
-        private string GetApiUrl(IExecutionContext executionContext)
-        {
-            string apiUrl = executionContext.GetGitHubContext("api_url");
-            if (!string.IsNullOrEmpty(apiUrl))
-            {
-                return apiUrl;
-            }
-            // Once the api_url is set for hosted, we can remove this fallback (it doesn't make sense for GHES)
-            return _dotcomApiUrl;
-        }
-
-        private static string BuildLinkToActionArchive(string apiUrl, string repository, string @ref)
-        {
-#if OS_WINDOWS
-            return $"{apiUrl}/repos/{repository}/zipball/{@ref}";
-#else
-            return $"{apiUrl}/repos/{repository}/tarball/{@ref}";
-#endif
-        }
-
-        private async Task DownloadRepositoryActionAsync(IExecutionContext executionContext, WebApi.ActionDownloadInfo downloadInfo, string destDirectory)
-        {
            //download and extract action in a temp folder and rename it on success
            string tempDirectory = Path.Combine(HostContext.GetDirectory(WellKnownDirectory.Actions), "_temp_" + Guid.NewGuid());
            Directory.CreateDirectory(tempDirectory);
@@ -819,97 +790,47 @@ namespace GitHub.Runner.Worker
            string link = downloadInfo?.TarballUrl;
 #endif

-            Trace.Info($"Save archive '{link}' into {archiveFile}.");
            try
            {
-                int retryCount = 0;
-
-                // Allow up to 20 * 60s for any action to be downloaded from github graph.
-                int timeoutSeconds = 20 * 60;
-                while (retryCount < 3)
+                var useActionArchiveCache = false;
+                var hasActionArchiveCache = false;
+                var actionArchiveCacheDir = Environment.GetEnvironmentVariable(Constants.Variables.Agent.ActionArchiveCacheDirectory);
+                if (!string.IsNullOrEmpty(actionArchiveCacheDir) &&
+                    Directory.Exists(actionArchiveCacheDir))
                {
-                    using (var actionDownloadTimeout = new CancellationTokenSource(TimeSpan.FromSeconds(timeoutSeconds)))
-                    using (var actionDownloadCancellation = CancellationTokenSource.CreateLinkedTokenSource(actionDownloadTimeout.Token, executionContext.CancellationToken))
+                    hasActionArchiveCache = true;
+                    Trace.Info($"Check if action archive '{downloadInfo.ResolvedNameWithOwner}@{downloadInfo.ResolvedSha}' already exists in cache directory '{actionArchiveCacheDir}'");
+#if OS_WINDOWS
+                    var cacheArchiveFile = Path.Combine(actionArchiveCacheDir, downloadInfo.ResolvedNameWithOwner.Replace(Path.DirectorySeparatorChar, '_').Replace(Path.AltDirectorySeparatorChar, '_'), $"{downloadInfo.ResolvedSha}.zip");
+#else
+                    var cacheArchiveFile = Path.Combine(actionArchiveCacheDir, downloadInfo.ResolvedNameWithOwner.Replace(Path.DirectorySeparatorChar, '_').Replace(Path.AltDirectorySeparatorChar, '_'), $"{downloadInfo.ResolvedSha}.tar.gz");
+#endif
+                    if (File.Exists(cacheArchiveFile))
                    {
                        try
                        {
-                            //open zip stream in async mode
-                            using (FileStream fs = new(archiveFile, FileMode.Create, FileAccess.Write, FileShare.None, bufferSize: _defaultFileStreamBufferSize, useAsync: true))
-                            using (var httpClientHandler = HostContext.CreateHttpClientHandler())
-                            using (var httpClient = new HttpClient(httpClientHandler))
-                            {
-                                httpClient.DefaultRequestHeaders.Authorization = CreateAuthHeader(downloadInfo.Authentication?.Token);
-
-                                httpClient.DefaultRequestHeaders.UserAgent.AddRange(HostContext.UserAgents);
-                                using (var response = await httpClient.GetAsync(link))
-                                {
-                                    var requestId = UrlUtil.GetGitHubRequestId(response.Headers);
-                                    if (!string.IsNullOrEmpty(requestId))
-                                    {
-                                        Trace.Info($"Request URL: {link} X-GitHub-Request-Id: {requestId} Http Status: {response.StatusCode}");
+                            Trace.Info($"Found action archive '{cacheArchiveFile}' in cache directory '{actionArchiveCacheDir}'");
+                            File.Copy(cacheArchiveFile, archiveFile);
+                            useActionArchiveCache = true;
+                            executionContext.Debug($"Copied action archive '{cacheArchiveFile}' to '{archiveFile}'");
                        }
-
-                                    if (response.IsSuccessStatusCode)
+                        catch (Exception ex)
                        {
-                                        using (var result = await response.Content.ReadAsStreamAsync())
-                                        {
-                                            await result.CopyToAsync(fs, _defaultCopyBufferSize, actionDownloadCancellation.Token);
-                                            await fs.FlushAsync(actionDownloadCancellation.Token);
-
-                                            // download succeed, break out the retry loop.
-                                            break;
-                                        }
-                                    }
-                                    else if (response.StatusCode == HttpStatusCode.NotFound)
-                                    {
-                                        // It doesn't make sense to retry in this case, so just stop
-                                        throw new ActionNotFoundException(new Uri(link), requestId);
-                                    }
-                                    else
-                                    {
-                                        // Something else bad happened, let's go to our retry logic
-                                        response.EnsureSuccessStatusCode();
-                                    }
-                                }
-                            }
-                        }
-                        catch (OperationCanceledException) when (executionContext.CancellationToken.IsCancellationRequested)
-                        {
-                            Trace.Info("Action download has been cancelled.");
-                            throw;
-                        }
-                        catch (ActionNotFoundException)
-                        {
-                            Trace.Info($"The action at '{link}' does not exist");
-                            throw;
-                        }
-                        catch (Exception ex) when (retryCount < 2)
-                        {
-                            retryCount++;
-                            Trace.Error($"Fail to download archive '{link}' -- Attempt: {retryCount}");
-                            Trace.Error(ex);
-                            if (actionDownloadTimeout.Token.IsCancellationRequested)
-                            {
-                                // action download didn't finish within timeout
-                                executionContext.Warning($"Action '{link}' didn't finish download within {timeoutSeconds} seconds.");
-                            }
-                            else
-                            {
-                                executionContext.Warning($"Failed to download action '{link}'. Error: {ex.Message}");
+                            Trace.Error($"Failed to copy action archive '{cacheArchiveFile}' to '{archiveFile}'. Error: {ex}");
                        }
                    }
                }

-                    if (String.IsNullOrEmpty(Environment.GetEnvironmentVariable("_GITHUB_ACTION_DOWNLOAD_NO_BACKOFF")))
+                executionContext.Global.JobTelemetry.Add(new JobTelemetry()
                {
-                        var backOff = BackoffTimerHelper.GetRandomBackoff(TimeSpan.FromSeconds(10), TimeSpan.FromSeconds(30));
-                        executionContext.Warning($"Back off {backOff.TotalSeconds} seconds before retry.");
-                        await Task.Delay(backOff);
-                    }
-                }
+                    Type = JobTelemetryType.General,
+                    Message = $"Action archive cache usage: {downloadInfo.ResolvedNameWithOwner}@{downloadInfo.ResolvedSha} use cache {useActionArchiveCache} has cache {hasActionArchiveCache}"
+                });

-                ArgUtil.NotNullOrEmpty(archiveFile, nameof(archiveFile));
-                executionContext.Debug($"Download '{link}' to '{archiveFile}'");
+                if (!useActionArchiveCache)
+                {
+                    await DownloadRepositoryArchive(executionContext, link, downloadInfo.Authentication?.Token, archiveFile);
+                }

                var stagingDirectory = Path.Combine(tempDirectory, "_staging");
                Directory.CreateDirectory(stagingDirectory);
@@ -929,11 +850,13 @@ namespace GitHub.Runner.Worker
                // tar -xzf
                using (var processInvoker = HostContext.CreateService<IProcessInvoker>())
                {
+                    var tarOutputs = new List<string>();
                    processInvoker.OutputDataReceived += new EventHandler<ProcessDataReceivedEventArgs>((sender, args) =>
                    {
                        if (!string.IsNullOrEmpty(args.Data))
                        {
                            Trace.Info(args.Data);
+                            tarOutputs.Add($"STDOUT: {args.Data}");
                        }
                    });

@@ -942,13 +865,16 @@ namespace GitHub.Runner.Worker
                        if (!string.IsNullOrEmpty(args.Data))
                        {
                            Trace.Error(args.Data);
+                            tarOutputs.Add($"STDERR: {args.Data}");
                        }
                    });

                    int exitCode = await processInvoker.ExecuteAsync(stagingDirectory, tar, $"-xzf \"{archiveFile}\"", null, executionContext.CancellationToken);
                    if (exitCode != 0)
                    {
-                        throw new InvalidActionArchiveException($"Can't use 'tar -xzf' extract archive file: {archiveFile}. Action being checked out: {downloadInfo.NameWithOwner}@{downloadInfo.Ref}. return code: {exitCode}.");
+                        var fileInfo = new FileInfo(archiveFile);
+                        var sha256hash = await IOUtil.GetFileContentSha256HashAsync(archiveFile);
+                        throw new InvalidActionArchiveException($"Can't use 'tar -xzf' extract archive file: {archiveFile} (SHA256 '{sha256hash}', size '{fileInfo.Length}' bytes, tar outputs '{string.Join(' ', tarOutputs)}'). Action being checked out: {downloadInfo.NameWithOwner}@{downloadInfo.Ref}. return code: {exitCode}.");
                    }
                }
 #endif
@@ -966,7 +892,6 @@ namespace GitHub.Runner.Worker
                }

                Trace.Verbose("Create watermark file indicate action download succeed.");
-                string watermarkFile = GetWatermarkFilePath(destDirectory);
                File.WriteAllText(watermarkFile, DateTime.UtcNow.ToString());

                executionContext.Debug($"Archive '{archiveFile}' has been unzipped into '{destDirectory}'.");
@@ -991,29 +916,6 @@ namespace GitHub.Runner.Worker
            }
        }

-        private void ConfigureAuthorizationFromContext(IExecutionContext executionContext, HttpClient httpClient)
-        {
-            var authToken = Environment.GetEnvironmentVariable("_GITHUB_ACTION_TOKEN");
-            if (string.IsNullOrEmpty(authToken))
-            {
-                // TODO: Deprecate the PREVIEW_ACTION_TOKEN
-                authToken = executionContext.Global.Variables.Get("PREVIEW_ACTION_TOKEN");
-            }
-
-            if (!string.IsNullOrEmpty(authToken))
-            {
-                HostContext.SecretMasker.AddValue(authToken);
-                var base64EncodingToken = Convert.ToBase64String(Encoding.UTF8.GetBytes($"PAT:{authToken}"));
-                httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", base64EncodingToken);
-            }
-            else
-            {
-                var accessToken = executionContext.GetGitHubContext("token");
-                var base64EncodingToken = Convert.ToBase64String(Encoding.UTF8.GetBytes($"x-access-token:{accessToken}"));
-                httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", base64EncodingToken);
-            }
-        }
-
        private string GetWatermarkFilePath(string directory) => directory + ".completed";

        private ActionSetupInfo PrepareRepositoryActionAsync(IExecutionContext executionContext, Pipelines.ActionStep repositoryAction)
@@ -1116,13 +1018,6 @@ namespace GitHub.Runner.Worker
                        }
                    }

-                    foreach (var step in compositeAction.Steps)
-                    {
-                        if (string.IsNullOrEmpty(executionContext.Global.Variables.Get("DistributedTask.EnableCompositeActions")) && step.Reference.Type != Pipelines.ActionSourceType.Script)
-                        {
-                            throw new Exception("`uses:` keyword is not currently supported.");
-                        }
-                    }
                    return setupInfo;
                }
                else
@@ -1186,13 +1081,6 @@ namespace GitHub.Runner.Worker
            return $"{repositoryReference.Name}@{repositoryReference.Ref}";
        }

-        private static string GetDownloadInfoLookupKey(WebApi.ActionDownloadInfo info)
-        {
-            ArgUtil.NotNullOrEmpty(info.NameWithOwner, nameof(info.NameWithOwner));
-            ArgUtil.NotNullOrEmpty(info.Ref, nameof(info.Ref));
-            return $"{info.NameWithOwner}@{info.Ref}";
-        }
-
        private AuthenticationHeaderValue CreateAuthHeader(string token)
        {
            if (string.IsNullOrEmpty(token))
@@ -1204,6 +1092,104 @@ namespace GitHub.Runner.Worker
            HostContext.SecretMasker.AddValue(base64EncodingToken);
            return new AuthenticationHeaderValue("Basic", base64EncodingToken);
        }
+
+        private async Task DownloadRepositoryArchive(IExecutionContext executionContext, string downloadUrl, string downloadAuthToken, string archiveFile)
+        {
+            Trace.Info($"Save archive '{downloadUrl}' into {archiveFile}.");
+            int retryCount = 0;
+
+            // Allow up to 20 * 60s for any action to be downloaded from github graph.
+            int timeoutSeconds = 20 * 60;
+            while (retryCount < 3)
+            {
+                using (var actionDownloadTimeout = new CancellationTokenSource(TimeSpan.FromSeconds(timeoutSeconds)))
+                using (var actionDownloadCancellation = CancellationTokenSource.CreateLinkedTokenSource(actionDownloadTimeout.Token, executionContext.CancellationToken))
+                {
+                    try
+                    {
+                        //open zip stream in async mode
+                        using (FileStream fs = new(archiveFile, FileMode.Create, FileAccess.Write, FileShare.None, bufferSize: _defaultFileStreamBufferSize, useAsync: true))
+                        using (var httpClientHandler = HostContext.CreateHttpClientHandler())
+                        using (var httpClient = new HttpClient(httpClientHandler))
+                        {
+                            httpClient.DefaultRequestHeaders.Authorization = CreateAuthHeader(downloadAuthToken);
+
+                            httpClient.DefaultRequestHeaders.UserAgent.AddRange(HostContext.UserAgents);
+                            using (var response = await httpClient.GetAsync(downloadUrl))
+                            {
+                                var requestId = UrlUtil.GetGitHubRequestId(response.Headers);
+                                if (!string.IsNullOrEmpty(requestId))
+                                {
+                                    Trace.Info($"Request URL: {downloadUrl} X-GitHub-Request-Id: {requestId} Http Status: {response.StatusCode}");
+                                }
+
+                                if (response.IsSuccessStatusCode)
+                                {
+                                    using (var result = await response.Content.ReadAsStreamAsync())
+                                    {
+                                        await result.CopyToAsync(fs, _defaultCopyBufferSize, actionDownloadCancellation.Token);
+                                        await fs.FlushAsync(actionDownloadCancellation.Token);
+
+                                        // download succeed, break out the retry loop.
+                                        break;
+                                    }
+                                }
+                                else if (response.StatusCode == HttpStatusCode.NotFound)
+                                {
+                                    // It doesn't make sense to retry in this case, so just stop
+                                    throw new ActionNotFoundException(new Uri(downloadUrl), requestId);
+                                }
+                                else
+                                {
+                                    // Something else bad happened, let's go to our retry logic
+                                    response.EnsureSuccessStatusCode();
+                                }
+                            }
+                        }
+                    }
+                    catch (OperationCanceledException) when (executionContext.CancellationToken.IsCancellationRequested)
+                    {
+                        Trace.Info("Action download has been cancelled.");
+                        throw;
+                    }
+                    catch (OperationCanceledException ex) when (!executionContext.CancellationToken.IsCancellationRequested && retryCount >= 2)
+                    {
+                        Trace.Info($"Action download final retry timeout after {timeoutSeconds} seconds.");
+                        throw new TimeoutException($"Action '{downloadUrl}' download has timed out. Error: {ex.Message}");
+                    }
+                    catch (ActionNotFoundException)
+                    {
+                        Trace.Info($"The action at '{downloadUrl}' does not exist");
+                        throw;
+                    }
+                    catch (Exception ex) when (retryCount < 2)
+                    {
+                        retryCount++;
+                        Trace.Error($"Fail to download archive '{downloadUrl}' -- Attempt: {retryCount}");
+                        Trace.Error(ex);
+                        if (actionDownloadTimeout.Token.IsCancellationRequested)
+                        {
+                            // action download didn't finish within timeout
+                            executionContext.Warning($"Action '{downloadUrl}' didn't finish download within {timeoutSeconds} seconds.");
+                        }
+                        else
+                        {
+                            executionContext.Warning($"Failed to download action '{downloadUrl}'. Error: {ex.Message}");
+                        }
+                    }
+                }
+
+                if (String.IsNullOrEmpty(Environment.GetEnvironmentVariable("_GITHUB_ACTION_DOWNLOAD_NO_BACKOFF")))
+                {
+                    var backOff = BackoffTimerHelper.GetRandomBackoff(TimeSpan.FromSeconds(10), TimeSpan.FromSeconds(30));
+                    executionContext.Warning($"Back off {backOff.TotalSeconds} seconds before retry.");
+                    await Task.Delay(backOff);
+                }
+            }
+
+            ArgUtil.NotNullOrEmpty(archiveFile, nameof(archiveFile));
+            executionContext.Debug($"Download '{downloadUrl}' to '{archiveFile}'");
+        }
    }

    public sealed class Definition
--- a/src/Runner.Worker/ActionManifestManager.cs
+++ b/src/Runner.Worker/ActionManifestManager.cs
@@ -144,7 +144,7 @@ namespace GitHub.Runner.Worker
                    executionContext.Error(error.Message);
                }

-                throw new ArgumentException($"Fail to load {fileRelativePath}");
+                throw new ArgumentException($"Failed to load {fileRelativePath}");
            }

            if (actionDefinition.Execution == null)
--- a/src/Runner.Worker/Container/DockerCommandManager.cs
+++ b/src/Runner.Worker/Container/DockerCommandManager.cs
@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
+using System.Text;
 using System.Text.RegularExpressions;
 using System.Threading;
 using System.Threading.Channels;
@@ -46,7 +47,9 @@ namespace GitHub.Runner.Worker.Container
        {
            base.Initialize(hostContext);
            DockerPath = WhichUtil.Which("docker", true, Trace);
-            DockerInstanceLabel = IOUtil.GetSha256Hash(hostContext.GetDirectory(WellKnownDirectory.Root)).Substring(0, 6);
+            string path = Path.Combine(HostContext.GetDirectory(WellKnownDirectory.Root), ".runner");
+            string json = File.ReadAllText(path, Encoding.UTF8);
+            DockerInstanceLabel = IOUtil.GetSha256Hash(json).Substring(0, 6);
        }

        public async Task<DockerVersion> DockerVersion(IExecutionContext context)
--- a/src/Runner.Worker/ContainerOperationProvider.cs
+++ b/src/Runner.Worker/ContainerOperationProvider.cs
@@ -466,17 +466,39 @@ namespace GitHub.Runner.Worker
            {
                throw new InvalidOperationException($"Failed to create directory to store registry client credentials: {e.Message}");
            }
-            var loginExitCode = await _dockerManager.DockerLogin(
+
+            // Login docker with retry up to 3 times
+            int retryCount = 0;
+            int loginExitCode = 0;
+            while (retryCount < 3)
+            {
+                loginExitCode = await _dockerManager.DockerLogin(
                    executionContext,
                    configLocation,
                    container.RegistryServer,
                    container.RegistryAuthUsername,
                    container.RegistryAuthPassword);
+                if (loginExitCode == 0)
+                {
+                    break;
+                }
+                else
+                {
+                    retryCount++;
+                    if (retryCount < 3)
+                    {
+                        var backOff = BackoffTimerHelper.GetRandomBackoff(TimeSpan.FromSeconds(1), TimeSpan.FromSeconds(10));
+                        executionContext.Warning($"Docker login for '{container.RegistryServer}' failed with exit code {loginExitCode}, back off {backOff.TotalSeconds} seconds before retry.");
+                        await Task.Delay(backOff);
+                    }
+                }
+            }

-            if (loginExitCode != 0)
+            if (retryCount == 3 && loginExitCode != 0)
            {
                throw new InvalidOperationException($"Docker login for '{container.RegistryServer}' failed with exit code {loginExitCode}");
            }
+
            return configLocation;
        }

--- a/src/Runner.Worker/DiagnosticLogManager.cs
+++ b/src/Runner.Worker/DiagnosticLogManager.cs
@@ -91,13 +91,13 @@ namespace GitHub.Runner.Worker
            string phaseName = executionContext.Global.Variables.System_PhaseDisplayName ?? "UnknownPhaseName";

            // zip the files
-            string diagnosticsZipFileName = $"{buildName}-{phaseName}.zip";
+            string diagnosticsZipFileName = $"{buildName}-{IOUtil.ReplaceInvalidFileNameChars(phaseName)}.zip";
            string diagnosticsZipFilePath = Path.Combine(supportRootFolder, diagnosticsZipFileName);
            ZipFile.CreateFromDirectory(supportFilesFolder, diagnosticsZipFilePath);

            // upload the json metadata file
            executionContext.Debug("Uploading diagnostic metadata file.");
-            string metadataFileName = $"diagnostics-{buildName}-{phaseName}.json";
+            string metadataFileName = $"diagnostics-{buildName}-{IOUtil.ReplaceInvalidFileNameChars(phaseName)}.json";
            string metadataFilePath = Path.Combine(supportFilesFolder, metadataFileName);
            string phaseResult = GetTaskResultAsString(executionContext.Result);

@@ -108,6 +108,8 @@ namespace GitHub.Runner.Worker

            parentContext.QueueAttachFile(type: CoreAttachmentType.DiagnosticLog, name: diagnosticsZipFileName, filePath: diagnosticsZipFilePath);

+            parentContext.QueueDiagnosticLogFile(name: diagnosticsZipFileName, filePath: diagnosticsZipFilePath);
+
            executionContext.Debug("Diagnostic file upload complete.");
        }

--- a/src/Runner.Worker/ExecutionContext.cs
+++ b/src/Runner.Worker/ExecutionContext.cs
@@ -90,6 +90,7 @@ namespace GitHub.Runner.Worker
        long Write(string tag, string message);
        void QueueAttachFile(string type, string name, string filePath);
        void QueueSummaryFile(string name, string filePath, Guid stepRecordId);
+        void QueueDiagnosticLogFile(string name, string filePath);

        // timeline record update methods
        void Start(string currentOperation = null);
@@ -397,11 +398,11 @@ namespace GitHub.Runner.Worker

            if (recordOrder != null)
            {
-                child.InitializeTimelineRecord(_mainTimelineId, recordId, _record.Id, ExecutionContextType.Task, displayName, refName, recordOrder);
+                child.InitializeTimelineRecord(_mainTimelineId, recordId, _record.Id, ExecutionContextType.Task, displayName, refName, recordOrder, embedded: isEmbedded);
            }
            else
            {
-                child.InitializeTimelineRecord(_mainTimelineId, recordId, _record.Id, ExecutionContextType.Task, displayName, refName, ++_childTimelineRecordOrder);
+                child.InitializeTimelineRecord(_mainTimelineId, recordId, _record.Id, ExecutionContextType.Task, displayName, refName, ++_childTimelineRecordOrder, embedded: isEmbedded);
            }
            if (logger != null)
            {
@@ -432,7 +433,7 @@ namespace GitHub.Runner.Worker
            Dictionary<string, string> intraActionState = null,
            string siblingScopeName = null)
        {
-            return Root.CreateChild(_record.Id, _record.Name, _record.Id.ToString("N"), scopeName, contextName, stage, logger: _logger, isEmbedded: true, cancellationTokenSource: null, intraActionState: intraActionState, embeddedId: embeddedId, siblingScopeName: siblingScopeName, timeout: GetRemainingTimeout());
+            return Root.CreateChild(_record.Id, _record.Name, _record.Id.ToString("N"), scopeName, contextName, stage, logger: _logger, isEmbedded: true, cancellationTokenSource: null, intraActionState: intraActionState, embeddedId: embeddedId, siblingScopeName: siblingScopeName, timeout: GetRemainingTimeout(), recordOrder: _record.Order);
        }

        public void Start(string currentOperation = null)
@@ -982,6 +983,18 @@ namespace GitHub.Runner.Worker
            _jobServerQueue.QueueResultsUpload(stepRecordId, name, filePath, ChecksAttachmentType.StepSummary, deleteSource: false, finalize: true, firstBlock: true, totalLines: 0);
        }

+        public void QueueDiagnosticLogFile(string name, string filePath)
+        {
+            ArgUtil.NotNullOrEmpty(name, nameof(name));
+            ArgUtil.NotNullOrEmpty(filePath, nameof(filePath));
+
+            if (!File.Exists(filePath))
+            {
+                throw new FileNotFoundException($"Can't upload diagnostic log file: {filePath}. File does not exist.");
+            }
+            _jobServerQueue.QueueResultsUpload(_record.Id, name, filePath, CoreAttachmentType.ResultsDiagnosticLog, deleteSource: false, finalize: true, firstBlock: true, totalLines: 0);
+        }
+
        // Add OnMatcherChanged
        public void Add(OnMatcherChanged handler)
        {
@@ -1160,7 +1173,7 @@ namespace GitHub.Runner.Worker
            }
        }

-        private void InitializeTimelineRecord(Guid timelineId, Guid timelineRecordId, Guid? parentTimelineRecordId, string recordType, string displayName, string refName, int? order)
+        private void InitializeTimelineRecord(Guid timelineId, Guid timelineRecordId, Guid? parentTimelineRecordId, string recordType, string displayName, string refName, int? order, bool embedded = false)
        {
            _mainTimelineId = timelineId;
            _record.Id = timelineRecordId;
@@ -1186,8 +1199,12 @@ namespace GitHub.Runner.Worker
            var configuration = HostContext.GetService<IConfigurationStore>();
            _record.WorkerName = configuration.GetSettings().AgentName;

+            // We don't want to update the timeline record for embedded steps since they are not really represented in the UI.
+            if (!embedded)
+            {
                _jobServerQueue.QueueTimelineRecordUpdate(_mainTimelineId, _record);
            }
+        }

        private void JobServerQueueThrottling_EventReceived(object sender, ThrottlingEventArgs data)
        {
--- a/src/Runner.Worker/FileCommandManager.cs
+++ b/src/Runner.Worker/FileCommandManager.cs
@@ -244,7 +244,7 @@ namespace GitHub.Runner.Worker
                if (resultsReceiverEndpoint != null)
                {
                    Trace.Info($"Queueing results file ({filePath}) for attachment upload ({attachmentName})");
-                    var stepId = context.Id;
+                    var stepId = context.IsEmbedded ? context.EmbeddedId : context.Id;
                    // Attachments must be added to the parent context (job), not the current context (step)
                    context.Root.QueueSummaryFile(attachmentName, scrubbedFilePath, stepId);
                }
--- a/src/Runner.Worker/Handlers/ContainerActionHandler.cs
+++ b/src/Runner.Worker/Handlers/ContainerActionHandler.cs
@@ -223,6 +223,10 @@ namespace GitHub.Runner.Worker.Handlers
            {
                Environment["ACTIONS_CACHE_URL"] = cacheUrl;
            }
+            if (systemConnection.Data.TryGetValue("PipelinesServiceUrl", out var pipelinesServiceUrl) && !string.IsNullOrEmpty(pipelinesServiceUrl))
+            {
+                Environment["ACTIONS_RUNTIME_URL"] = pipelinesServiceUrl;
+            }
            if (systemConnection.Data.TryGetValue("GenerateIdTokenUrl", out var generateIdTokenUrl) && !string.IsNullOrEmpty(generateIdTokenUrl))
            {
                Environment["ACTIONS_ID_TOKEN_REQUEST_URL"] = generateIdTokenUrl;
--- a/src/Runner.Worker/Handlers/HandlerFactory.cs
+++ b/src/Runner.Worker/Handlers/HandlerFactory.cs
@@ -84,6 +84,45 @@ namespace GitHub.Runner.Worker.Handlers
                    }
                    nodeData.NodeVersion = "node16";
                }
+
+                var localForceActionsToNode20 = StringUtil.ConvertToBoolean(Environment.GetEnvironmentVariable(Constants.Variables.Agent.ManualForceActionsToNode20));
+                executionContext.Global.EnvironmentVariables.TryGetValue(Constants.Variables.Actions.ManualForceActionsToNode20, out var workflowForceActionsToNode20);
+                var enforceNode20Locally = !string.IsNullOrWhiteSpace(workflowForceActionsToNode20) ? StringUtil.ConvertToBoolean(workflowForceActionsToNode20) : localForceActionsToNode20;
+                if (string.Equals(nodeData.NodeVersion, "node16")
+                && ((executionContext.Global.Variables.GetBoolean("DistributedTask.ForceGithubJavascriptActionsToNode20") ?? false) || enforceNode20Locally))
+                {
+                    executionContext.Global.EnvironmentVariables.TryGetValue(Constants.Variables.Actions.AllowActionsUseUnsecureNodeVersion, out var workflowOptOut);
+                    var isWorkflowOptOutSet = !string.IsNullOrWhiteSpace(workflowOptOut);
+                    var isLocalOptOut = StringUtil.ConvertToBoolean(Environment.GetEnvironmentVariable(Constants.Variables.Actions.AllowActionsUseUnsecureNodeVersion));
+                    bool isOptOut = isWorkflowOptOutSet ? StringUtil.ConvertToBoolean(workflowOptOut) : isLocalOptOut;
+
+                    if (!isOptOut)
+                    {
+                        var repoAction = action as Pipelines.RepositoryPathReference;
+                        if (repoAction != null)
+                        {
+                            var warningActions = new HashSet<string>();
+                            if (executionContext.Global.Variables.TryGetValue(Constants.Runner.EnforcedNode16DetectedAfterEndOfLifeEnvVariable, out var node20ForceWarnings))
+                            {
+                                warningActions = StringUtil.ConvertFromJson<HashSet<string>>(node20ForceWarnings);
+                            }
+
+                            string repoActionFullName;
+                            if (string.IsNullOrEmpty(repoAction.Name))
+                            {
+                                repoActionFullName = repoAction.Path; // local actions don't have a 'Name'
+                            }
+                            else
+                            {
+                                repoActionFullName = $"{repoAction.Name}/{repoAction.Path ?? string.Empty}".TrimEnd('/') + $"@{repoAction.Ref}";
+                            }
+
+                            warningActions.Add(repoActionFullName);
+                            executionContext.Global.Variables.Set(Constants.Runner.EnforcedNode16DetectedAfterEndOfLifeEnvVariable, StringUtil.ConvertToJson(warningActions));
+                        }
+                        nodeData.NodeVersion = "node20";
+                    }
+                }
                (handler as INodeScriptActionHandler).Data = nodeData;
            }
            else if (data.ExecutionType == ActionExecutionType.Script)
--- a/src/Runner.Worker/Handlers/NodeScriptActionHandler.cs
+++ b/src/Runner.Worker/Handlers/NodeScriptActionHandler.cs
@@ -58,6 +58,10 @@ namespace GitHub.Runner.Worker.Handlers
            {
                Environment["ACTIONS_CACHE_URL"] = cacheUrl;
            }
+            if (systemConnection.Data.TryGetValue("PipelinesServiceUrl", out var pipelinesServiceUrl) && !string.IsNullOrEmpty(pipelinesServiceUrl))
+            {
+                Environment["ACTIONS_RUNTIME_URL"] = pipelinesServiceUrl;
+            }
            if (systemConnection.Data.TryGetValue("GenerateIdTokenUrl", out var generateIdTokenUrl) && !string.IsNullOrEmpty(generateIdTokenUrl))
            {
                Environment["ACTIONS_ID_TOKEN_REQUEST_URL"] = generateIdTokenUrl;
@@ -114,6 +118,11 @@ namespace GitHub.Runner.Worker.Handlers
            {
                Data.NodeVersion = "node16";
            }
+
+            if (forcedNodeVersion == "node20" && Data.NodeVersion != "node20")
+            {
+                Data.NodeVersion = "node20";
+            }
            var nodeRuntimeVersion = await StepHost.DetermineNodeRuntimeVersion(ExecutionContext, Data.NodeVersion);
            string file = Path.Combine(HostContext.GetDirectory(WellKnownDirectory.Externals), nodeRuntimeVersion, "bin", $"node{IOUtil.ExeExtension}");

@@ -134,6 +143,28 @@ namespace GitHub.Runner.Worker.Handlers
            // Remove environment variable that may cause conflicts with the node within the runner.
            Environment.Remove("NODE_ICU_DATA"); // https://github.com/actions/runner/issues/795

+            if (string.Equals(Data.NodeVersion, Constants.Runner.DeprecatedNodeVersion, StringComparison.OrdinalIgnoreCase) && (ExecutionContext.Global.Variables.GetBoolean(Constants.Runner.Features.Node16Warning) ?? false))
+            {
+                var repoAction = Action as RepositoryPathReference;
+                var warningActions = new HashSet<string>();
+                if (ExecutionContext.Global.Variables.TryGetValue(Constants.Runner.DeprecatedNodeDetectedAfterEndOfLifeActions, out var deprecatedNodeWarnings))
+                {
+                    warningActions = StringUtil.ConvertFromJson<HashSet<string>>(deprecatedNodeWarnings);
+                }
+
+                if (string.IsNullOrEmpty(repoAction.Name))
+                {
+                    // local actions don't have a 'Name'
+                    warningActions.Add(repoAction.Path);
+                }
+                else
+                {
+                    warningActions.Add($"{repoAction.Name}/{repoAction.Path ?? string.Empty}".TrimEnd('/') + $"@{repoAction.Ref}");
+                }
+
+                ExecutionContext.Global.Variables.Set(Constants.Runner.DeprecatedNodeDetectedAfterEndOfLifeActions, StringUtil.ConvertToJson(warningActions));
+            }
+
            using (var stdoutManager = new OutputManager(ExecutionContext, ActionCommandManager))
            using (var stderrManager = new OutputManager(ExecutionContext, ActionCommandManager))
            {
--- a/src/Runner.Worker/JobExtension.cs
+++ b/src/Runner.Worker/JobExtension.cs
@@ -127,6 +127,10 @@ namespace GitHub.Runner.Worker
                        }
                    }

+                    // Check OS warning
+                    var osWarningChecker = HostContext.GetService<IOSWarningChecker>();
+                    await osWarningChecker.CheckOSAsync(context, message.OSWarnings);
+
                    try
                    {
                        var tokenPermissions = jobContext.Global.Variables.Get("system.github.token.permissions") ?? "";
@@ -392,6 +396,18 @@ namespace GitHub.Runner.Worker
                        }
                    }

+                    // Register custom image creation post-job step if the "snapshot" token is present in the message.
+                    var snapshotRequest = templateEvaluator.EvaluateJobSnapshotRequest(message.Snapshot, jobContext.ExpressionValues, jobContext.ExpressionFunctions);
+                    if (snapshotRequest != null)
+                    {
+                        var snapshotOperationProvider = HostContext.GetService<ISnapshotOperationProvider>();
+                        jobContext.RegisterPostJobStep(new JobExtensionRunner(
+                            runAsync: (executionContext, _) => snapshotOperationProvider.CreateSnapshotRequestAsync(executionContext, snapshotRequest),
+                            condition: $"{PipelineTemplateConstants.Success}()",
+                            displayName: $"Create custom image",
+                            data: null));
+                    }
+
                    // Register Job Completed hook if the variable is set
                    var completedHookPath = Environment.GetEnvironmentVariable("ACTIONS_RUNNER_HOOK_JOB_COMPLETED");
                    if (!string.IsNullOrEmpty(completedHookPath))
--- a/src/Runner.Worker/JobRunner.cs
+++ b/src/Runner.Worker/JobRunner.cs
@@ -42,6 +42,7 @@ namespace GitHub.Runner.Worker
            Trace.Info("Job ID {0}", message.JobId);

            DateTime jobStartTimeUtc = DateTime.UtcNow;
+            _runnerSettings = HostContext.GetService<IConfigurationStore>().GetSettings();
            IRunnerService server = null;

            // add orchestration id to useragent for better correlation.
@@ -49,6 +50,9 @@ namespace GitHub.Runner.Worker
                !string.IsNullOrEmpty(orchestrationId.Value))
            {
                HostContext.UserAgents.Add(new ProductInfoHeaderValue("OrchestrationId", orchestrationId.Value));
+
+                // make sure orchestration id is in the user-agent header.
+                VssUtil.InitializeVssClientSettings(HostContext.UserAgents, HostContext.WebProxy);
            }

            ServiceEndpoint systemConnection = message.Resources.Endpoints.Single(x => string.Equals(x.Name, WellKnownServiceEndpointNames.SystemVssConnection, StringComparison.OrdinalIgnoreCase));
@@ -72,7 +76,7 @@ namespace GitHub.Runner.Worker
                    launchServer.InitializeLaunchClient(new Uri(launchReceiverEndpoint), accessToken);
                }
                _jobServerQueue = HostContext.GetService<IJobServerQueue>();
-                _jobServerQueue.Start(message, resultServiceOnly: true);
+                _jobServerQueue.Start(message, resultsServiceOnly: true);
            }
            else
            {
@@ -154,8 +158,6 @@ namespace GitHub.Runner.Worker

                jobContext.SetRunnerContext("os", VarUtil.OS);
                jobContext.SetRunnerContext("arch", VarUtil.OSArchitecture);
-
-                _runnerSettings = HostContext.GetService<IConfigurationStore>().GetSettings();
                jobContext.SetRunnerContext("name", _runnerSettings.AgentName);

                if (jobContext.Global.Variables.TryGetValue(WellKnownDistributedTaskVariables.RunnerEnvironment, out var runnerEnvironment))
@@ -276,12 +278,26 @@ namespace GitHub.Runner.Worker
        {
            jobContext.Debug($"Finishing: {message.JobDisplayName}");
            TaskResult result = jobContext.Complete(taskResult);
+            if (jobContext.Global.Variables.TryGetValue(Constants.Runner.DeprecatedNodeDetectedAfterEndOfLifeActions, out var deprecatedNodeWarnings))
+            {
+                var actions = string.Join(", ", StringUtil.ConvertFromJson<HashSet<string>>(deprecatedNodeWarnings));
+                jobContext.Warning(string.Format(Constants.Runner.DetectedNodeAfterEndOfLifeMessage, actions));
+            }
+
            if (jobContext.Global.Variables.TryGetValue(Constants.Runner.EnforcedNode12DetectedAfterEndOfLifeEnvVariable, out var node16ForceWarnings))
            {
                var actions = string.Join(", ", StringUtil.ConvertFromJson<HashSet<string>>(node16ForceWarnings));
                jobContext.Warning(string.Format(Constants.Runner.EnforcedNode12DetectedAfterEndOfLife, actions));
            }

+            if (jobContext.Global.Variables.TryGetValue(Constants.Runner.EnforcedNode16DetectedAfterEndOfLifeEnvVariable, out var node20ForceWarnings) && (jobContext.Global.Variables.GetBoolean("DistributedTask.ForceGithubJavascriptActionsToNode20") ?? false))
+            {
+                var actions = string.Join(", ", StringUtil.ConvertFromJson<HashSet<string>>(node20ForceWarnings));
+                jobContext.Warning(string.Format(Constants.Runner.EnforcedNode16DetectedAfterEndOfLife, actions));
+            }
+
+            await ShutdownQueue(throwOnFailure: false);
+
            // Make sure to clean temp after file upload since they may be pending fileupload still use the TEMP dir.
            _tempDirectoryManager?.CleanupTempDirectory();

@@ -375,15 +391,32 @@ namespace GitHub.Runner.Worker
                }
            }

+            if (jobContext.Global.Variables.TryGetValue(Constants.Runner.DeprecatedNodeDetectedAfterEndOfLifeActions, out var deprecatedNodeWarnings))
+            {
+                var actions = string.Join(", ", StringUtil.ConvertFromJson<HashSet<string>>(deprecatedNodeWarnings));
+                jobContext.Warning(string.Format(Constants.Runner.DetectedNodeAfterEndOfLifeMessage, actions));
+            }
+
            if (jobContext.Global.Variables.TryGetValue(Constants.Runner.EnforcedNode12DetectedAfterEndOfLifeEnvVariable, out var node16ForceWarnings))
            {
                var actions = string.Join(", ", StringUtil.ConvertFromJson<HashSet<string>>(node16ForceWarnings));
                jobContext.Warning(string.Format(Constants.Runner.EnforcedNode12DetectedAfterEndOfLife, actions));
            }

+            if (jobContext.Global.Variables.TryGetValue(Constants.Runner.EnforcedNode16DetectedAfterEndOfLifeEnvVariable, out var node20ForceWarnings))
+            {
+                var actions = string.Join(", ", StringUtil.ConvertFromJson<HashSet<string>>(node20ForceWarnings));
+                jobContext.Warning(string.Format(Constants.Runner.EnforcedNode16DetectedAfterEndOfLife, actions));
+            }
+
            try
            {
-                await ShutdownQueue(throwOnFailure: true);
+                var jobQueueTelemetry = await ShutdownQueue(throwOnFailure: true);
+                // include any job telemetry from the background upload process.
+                if (jobQueueTelemetry.Count > 0)
+                {
+                    jobContext.Global.JobTelemetry.AddRange(jobQueueTelemetry);
+                }
            }
            catch (Exception ex)
            {
@@ -485,7 +518,7 @@ namespace GitHub.Runner.Worker
            }
        }

-        private async Task ShutdownQueue(bool throwOnFailure)
+        private async Task<IList<JobTelemetry>> ShutdownQueue(bool throwOnFailure)
        {
            if (_jobServerQueue != null)
            {
@@ -493,6 +526,7 @@ namespace GitHub.Runner.Worker
                {
                    Trace.Info("Shutting down the job server queue.");
                    await _jobServerQueue.ShutdownAsync();
+                    return _jobServerQueue.JobTelemetries;
                }
                catch (Exception ex) when (!throwOnFailure)
                {
@@ -504,6 +538,8 @@ namespace GitHub.Runner.Worker
                    _jobServerQueue = null; // Prevent multiple attempts.
                }
            }
+
+            return Array.Empty<JobTelemetry>();
        }
    }
 }
--- a/src/Runner.Worker/OSWarningChecker.cs
+++ b/src/Runner.Worker/OSWarningChecker.cs
@@ -0,0 +1,87 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Threading.Tasks;
+using System.Text.RegularExpressions;
+using GitHub.DistributedTask.WebApi;
+using GitHub.DistributedTask.Pipelines;
+using GitHub.Runner.Common;
+using GitHub.Runner.Sdk;
+
+namespace GitHub.Runner.Worker
+{
+    [ServiceLocator(Default = typeof(OSWarningChecker))]
+    public interface IOSWarningChecker : IRunnerService
+    {
+        Task CheckOSAsync(IExecutionContext context, IList<OSWarning> osWarnings);
+    }
+
+#if OS_WINDOWS || OS_OSX
+    public sealed class OSWarningChecker : RunnerService, IOSWarningChecker
+    {
+        public Task CheckOSAsync(IExecutionContext context, IList<OSWarning> osWarnings)
+        {
+            ArgUtil.NotNull(context, nameof(context));
+            ArgUtil.NotNull(osWarnings, nameof(osWarnings));
+            return Task.CompletedTask;
+        }
+    }
+#else
+    public sealed class OSWarningChecker : RunnerService, IOSWarningChecker
+    {
+        private static readonly TimeSpan s_matchTimeout = TimeSpan.FromMilliseconds(100);
+        private static readonly RegexOptions s_regexOptions = RegexOptions.CultureInvariant | RegexOptions.IgnoreCase;
+
+        public async Task CheckOSAsync(IExecutionContext context, IList<OSWarning> osWarnings)
+        {
+            ArgUtil.NotNull(context, nameof(context));
+            ArgUtil.NotNull(osWarnings, nameof(osWarnings));
+            foreach (var osWarning in osWarnings)
+            {
+                if (string.IsNullOrEmpty(osWarning.FilePath))
+                {
+                    Trace.Error("The file path is not specified in the OS warning check.");
+                    continue;
+                }
+
+                if (string.IsNullOrEmpty(osWarning.RegularExpression))
+                {
+                    Trace.Error("The regular expression is not specified in the OS warning check.");
+                    continue;
+                }
+
+                if (string.IsNullOrEmpty(osWarning.Warning))
+                {
+                    Trace.Error("The warning message is not specified in the OS warning check.");
+                    continue;
+                }
+
+                try
+                {
+                    if (File.Exists(osWarning.FilePath))
+                    {
+                        var lines = await File.ReadAllLinesAsync(osWarning.FilePath, context.CancellationToken);
+                        var regex = new Regex(osWarning.RegularExpression, s_regexOptions, s_matchTimeout);
+                        foreach (var line in lines)
+                        {
+                            if (regex.IsMatch(line))
+                            {
+                                context.Warning(osWarning.Warning);
+                                context.Global.JobTelemetry.Add(new JobTelemetry() { Type = JobTelemetryType.General, Message = $"OS warning: {osWarning.Warning}" });
+                                return;
+                            }
+                        }
+                    }
+                }
+                catch (Exception ex)
+                {
+                    Trace.Error("An error occurred while checking OS warnings for file '{0}' and regex '{1}'.", osWarning.FilePath, osWarning.RegularExpression);
+                    Trace.Error(ex);
+                    context.Global.JobTelemetry.Add(new JobTelemetry() { Type = JobTelemetryType.General, Message = $"An error occurred while checking OS warnings for file '{osWarning.FilePath}' and regex '{osWarning.RegularExpression}': {ex.Message}" });
+                }
+            }
+        }
+    }
+#endif
+}
+
--- a/src/Runner.Worker/Runner.Worker.csproj
+++ b/src/Runner.Worker/Runner.Worker.csproj
@@ -1,11 +1,12 @@
 <Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
    <OutputType>Exe</OutputType>
    <RuntimeIdentifiers>win-x64;win-x86;linux-x64;linux-arm64;linux-arm;osx-x64;osx-arm64;win-arm64</RuntimeIdentifiers>
+    <SelfContained>true</SelfContained>
    <TargetLatestRuntimePatch>true</TargetLatestRuntimePatch>
-    <NoWarn>NU1701;NU1603</NoWarn>
+    <NoWarn>NU1701;NU1603;SYSLIB0050;SYSLIB0051</NoWarn>
    <Version>$(Version)</Version>
    <PredefinedCulturesOnly>false</PredefinedCulturesOnly>
    <PublishReadyToRunComposite>true</PublishReadyToRunComposite>
@@ -18,9 +19,9 @@
  </ItemGroup>

  <ItemGroup>
-    <PackageReference Include="System.Security.Cryptography.ProtectedData" Version="4.4.0" />
-    <PackageReference Include="System.ServiceProcess.ServiceController" Version="4.4.0" />
-    <PackageReference Include="System.Threading.Channels" Version="4.4.0" />
+    <PackageReference Include="System.Security.Cryptography.ProtectedData" Version="8.0.0" />
+    <PackageReference Include="System.ServiceProcess.ServiceController" Version="8.0.0" />
+    <PackageReference Include="System.Threading.Channels" Version="8.0.0" />
    <PackageReference Include="YamlDotNet.Signed" Version="5.3.0" />
  </ItemGroup>

--- a/src/Runner.Worker/SnapshotOperationProvider.cs
+++ b/src/Runner.Worker/SnapshotOperationProvider.cs
@@ -0,0 +1,32 @@
+#nullable enable
+using System.IO;
+using System.Threading.Tasks;
+using GitHub.DistributedTask.Pipelines;
+using GitHub.Runner.Common;
+using GitHub.Runner.Sdk;
+namespace GitHub.Runner.Worker;
+
+[ServiceLocator(Default = typeof(SnapshotOperationProvider))]
+public interface ISnapshotOperationProvider : IRunnerService
+{
+    Task CreateSnapshotRequestAsync(IExecutionContext executionContext, Snapshot snapshotRequest);
+}
+
+public class SnapshotOperationProvider : RunnerService, ISnapshotOperationProvider
+{
+    public Task CreateSnapshotRequestAsync(IExecutionContext executionContext, Snapshot snapshotRequest)
+    {
+        var snapshotRequestFilePath = Path.Combine(HostContext.GetDirectory(WellKnownDirectory.Root), ".snapshot", "request.json");
+        var snapshotRequestDirectoryPath = Path.GetDirectoryName(snapshotRequestFilePath);
+        if (snapshotRequestDirectoryPath != null)
+        {
+            Directory.CreateDirectory(snapshotRequestDirectoryPath);
+        }
+
+        IOUtil.SaveObject(snapshotRequest, snapshotRequestFilePath);
+        executionContext.Output($"Request written to: {snapshotRequestFilePath}");
+        executionContext.Output("This request will be processed after the job completes. You will not receive any feedback on the snapshot process within the workflow logs of this job.");
+        executionContext.Output("If the snapshot process is successful, you should see a new image with the requested name in the list of available custom images when creating a new GitHub-hosted Runner.");
+        return Task.CompletedTask;
+    }
+}
--- a/src/Runner.Worker/StepsRunner.cs
+++ b/src/Runner.Worker/StepsRunner.cs
@@ -295,7 +295,7 @@ namespace GitHub.Runner.Worker
                    !jobCancellationToken.IsCancellationRequested)
                {
                    Trace.Error($"Caught timeout exception from step: {ex.Message}");
-                    step.ExecutionContext.Error("The action has timed out.");
+                    step.ExecutionContext.Error($"The action '{step.DisplayName}' has timed out after {timeoutMinutes} minutes.");
                    step.ExecutionContext.Result = TaskResult.Failed;
                }
                else
--- a/src/Sdk/Common/Common/Authentication/NoOpCredentials.cs
+++ b/src/Sdk/Common/Common/Authentication/NoOpCredentials.cs
@@ -0,0 +1,22 @@
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace GitHub.Services.Common
+{
+    // Set of classes used to bypass token operations
+    // Results Service and External services follow a different auth model but
+    // we are required to pass in a credentials object to create a RawHttpMessageHandler
+    public class NoOpCredentials : FederatedCredential
+    {
+        public NoOpCredentials(IssuedToken initialToken) : base(initialToken)
+        {
+        }
+
+        public override VssCredentialsType CredentialType { get; }
+        protected override IssuedTokenProvider OnCreateTokenProvider(Uri serverUrl, IHttpResponse response)
+        {
+            return null;
+        }
+    }
+}
--- a/src/Sdk/Common/Common/Exceptions/PropertyExceptions.cs
+++ b/src/Sdk/Common/Common/Exceptions/PropertyExceptions.cs
@@ -34,6 +34,7 @@ namespace GitHub.Services.Common

        public String PropertyName { get; set; }

+        [Obsolete]
        [SecurityCritical]
        public override void GetObjectData(SerializationInfo info, StreamingContext context)
        {
--- a/src/Sdk/Common/Common/RawHttpHeaders.cs
+++ b/src/Sdk/Common/Common/RawHttpHeaders.cs
@@ -1,12 +1,11 @@
 using System;
 using System.ComponentModel;
-using System.Diagnostics.CodeAnalysis;

 namespace GitHub.Services.Common.Internal
 {
    [EditorBrowsable(EditorBrowsableState.Never)]
    public static class RawHttpHeaders
    {
-        public const String SessionHeader = "X-Runner-Session";
+        public const String SessionHeader = "X-Actions-Session";
    }
 }
--- a/src/Sdk/Common/Common/RawHttpMessageHandler.cs
+++ b/src/Sdk/Common/Common/RawHttpMessageHandler.cs
@@ -109,7 +109,7 @@ namespace GitHub.Services.Common
            lock (m_thisLock)
            {
                // Ensure that we attempt to use the most appropriate authentication mechanism by default.
-                if (m_tokenProvider == null)
+                if (m_tokenProvider == null && !(this.Credentials is NoOpCredentials))
                {
                    m_tokenProvider = this.Credentials.CreateTokenProvider(request.RequestUri, null, null);
                }
@@ -121,7 +121,8 @@ namespace GitHub.Services.Common
            HttpResponseMessageWrapper responseWrapper;

            Boolean lastResponseDemandedProxyAuth = false;
-            Int32 retries = m_maxAuthRetries;
+            // do not retry if we cannot recreate tokens
+            Int32 retries = this.Credentials is NoOpCredentials ? 0 : m_maxAuthRetries;
            try
            {
                tokenSource = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken);
@@ -137,9 +138,15 @@ namespace GitHub.Services.Common
                        response.Dispose();
                    }

+                    this.Settings.ApplyTo(request);
+
                    // Let's start with sending a token
-                    IssuedToken token = await m_tokenProvider.GetTokenAsync(null, tokenSource.Token).ConfigureAwait(false);
+                    IssuedToken token = null;
+                    if (m_tokenProvider != null)
+                    {
+                        token = await m_tokenProvider.GetTokenAsync(null, tokenSource.Token).ConfigureAwait(false);
                        ApplyToken(request, token, applyICredentialsToWebProxy: lastResponseDemandedProxyAuth);
+                    }

                    // The WinHttpHandler will chunk any content that does not have a computed length which is
                    // not what we want. By loading into a buffer up-front we bypass this behavior and there is
--- a/src/Sdk/Common/Common/VssException.cs
+++ b/src/Sdk/Common/Common/VssException.cs
@@ -127,6 +127,7 @@ namespace GitHub.Services.Common
            EventId = (int)info.GetValue("m_eventId", typeof(int));
        }

+        [Obsolete]
        [SecurityCritical]
        public override void GetObjectData(SerializationInfo info, StreamingContext context)
        {
--- a/src/Sdk/Common/Common/VssHttpMessageHandler.cs
+++ b/src/Sdk/Common/Common/VssHttpMessageHandler.cs
@@ -214,25 +214,7 @@ namespace GitHub.Services.Common
                    // ConfigureAwait(false) enables the continuation to be run outside any captured
                    // SyncronizationContext (such as ASP.NET's) which keeps things from deadlocking...

-                    var tmpResponse = await m_messageInvoker.SendAsync(request, tokenSource.Token).ConfigureAwait(false);
-                    if (Settings.AllowAutoRedirectForBroker && tmpResponse.StatusCode == HttpStatusCode.Redirect)
-                    {
-                        //Dispose of the previous response
-                        tmpResponse?.Dispose();
-
-                        var location = tmpResponse.Headers.Location;
-                        request = new HttpRequestMessage(HttpMethod.Get, location);
-
-                        // Reapply the token to new redirected request
-                        ApplyToken(request, token, applyICredentialsToWebProxy: lastResponseDemandedProxyAuth);
-
-                        // Resend the request
                    response = await m_messageInvoker.SendAsync(request, tokenSource.Token).ConfigureAwait(false);
-                    }
-                    else
-                    {
-                        response = tmpResponse;
-                    }

                    traceInfo?.TraceRequestSendTime();

--- a/src/Sdk/Common/Common/VssHttpRequestSettings.cs
+++ b/src/Sdk/Common/Common/VssHttpRequestSettings.cs
@@ -110,16 +110,6 @@ namespace GitHub.Services.Common
            set;
        }

-        /// <summary>
-        /// Gets or sets a value indicating whether or not HttpClientHandler should follow redirect on outgoing broker requests
-        /// This is special since this also sends token in the request, where as default AllowAutoRedirect does not
-        /// </summary>
-        public Boolean AllowAutoRedirectForBroker
-        {
-            get;
-            set;
-        }
-
        /// <summary>
        /// Gets or sets a value indicating whether or not compression should be used on outgoing requests.
        /// The default value is true.
--- a/src/Sdk/DTGenerated/Generated/TaskAgentHttpClientBase.cs
+++ b/src/Sdk/DTGenerated/Generated/TaskAgentHttpClientBase.cs
@@ -461,6 +461,9 @@ namespace GitHub.DistributedTask.WebApi
            long? lastMessageId = null,
            TaskAgentStatus? status = null,
            string runnerVersion = null,
+            string os = null,
+            string architecture = null,
+            bool? disableUpdate = null,
            object userState = null,
            CancellationToken cancellationToken = default)
        {
@@ -483,6 +486,21 @@ namespace GitHub.DistributedTask.WebApi
                queryParams.Add("runnerVersion", runnerVersion);
            }

+            if (os != null)
+            {
+                queryParams.Add("os", os);
+            }
+
+            if (architecture != null)
+            {
+                queryParams.Add("architecture", architecture);
+            }
+
+            if (disableUpdate != null)
+            {
+                queryParams.Add("disableUpdate", disableUpdate.Value.ToString().ToLower());
+            }
+
            return SendAsync<TaskAgentMessage>(
                httpMethod,
                locationId,
--- a/src/Sdk/DTLogging/Logging/ValueEncoders.cs
+++ b/src/Sdk/DTLogging/Logging/ValueEncoders.cs
@@ -122,10 +122,13 @@ namespace GitHub.DistributedTask.Logging
            {
                var secretSection = string.Empty;
                if (value.Contains("&+"))
+                {
+                    if (value.Length > value.IndexOf("&+") + "&+".Length + 1)
                    {
                        // +1 to skip the letter that got colored
                        secretSection = value.Substring(value.IndexOf("&+") + "&+".Length + 1);
                    }
+                }
                else
                {
                    secretSection = value.Substring(value.LastIndexOf("&") + "&".Length);
--- a/src/Sdk/DTPipelines/Pipelines/AgentJobRequestMessage.cs
+++ b/src/Sdk/DTPipelines/Pipelines/AgentJobRequestMessage.cs
@@ -43,6 +43,8 @@ namespace GitHub.DistributedTask.Pipelines
            TemplateToken jobOutputs,
            IList<TemplateToken> defaults,
            ActionsEnvironmentReference actionsEnvironment,
+            TemplateToken snapshot,
+            IList<OSWarning> osWarnings,
            String messageType = JobRequestMessageTypes.PipelineAgentJobRequest)
        {
            this.MessageType = messageType;
@@ -57,6 +59,7 @@ namespace GitHub.DistributedTask.Pipelines
            this.Workspace = workspaceOptions;
            this.JobOutputs = jobOutputs;
            this.ActionsEnvironment = actionsEnvironment;
+            this.Snapshot = snapshot;
            m_variables = new Dictionary<String, VariableValue>(variables, StringComparer.OrdinalIgnoreCase);
            m_maskHints = new List<MaskHint>(maskHints);
            m_steps = new List<JobStep>(steps);
@@ -71,6 +74,11 @@ namespace GitHub.DistributedTask.Pipelines
                m_defaults = new List<TemplateToken>(defaults);
            }

+            if (osWarnings?.Count > 0)
+            {
+                m_osWarnings = new List<OSWarning>(osWarnings);
+            }
+
            this.ContextData = new Dictionary<String, PipelineContextData>(StringComparer.OrdinalIgnoreCase);
            if (contextData?.Count > 0)
            {
@@ -237,6 +245,13 @@ namespace GitHub.DistributedTask.Pipelines
            set;
        }

+        [DataMember(EmitDefaultValue = false)]
+        public TemplateToken Snapshot
+        {
+            get;
+            set;
+        }
+
        /// <summary>
        /// Gets the collection of variables associated with the current context.
        /// </summary>
@@ -279,6 +294,18 @@ namespace GitHub.DistributedTask.Pipelines
            }
        }

+        public IList<OSWarning> OSWarnings
+        {
+            get
+            {
+                if (m_osWarnings == null)
+                {
+                    m_osWarnings = new List<OSWarning>();
+                }
+                return m_osWarnings;
+            }
+        }
+
        // todo: remove after feature-flag DistributedTask.EvaluateContainerOnRunner is enabled everywhere
        public void SetJobSidecarContainers(IDictionary<String, String> value)
        {
@@ -416,6 +443,11 @@ namespace GitHub.DistributedTask.Pipelines
            {
                JobContainer = new StringToken(null, null, null, m_jobContainerResourceAlias);
            }
+
+            if (m_osWarnings?.Count == 0)
+            {
+                m_osWarnings = null;
+            }
        }

        [DataMember(Name = "EnvironmentVariables", EmitDefaultValue = false)]
@@ -440,6 +472,9 @@ namespace GitHub.DistributedTask.Pipelines
        [DataMember(Name = "JobSidecarContainers", EmitDefaultValue = false)]
        private IDictionary<String, String> m_jobSidecarContainers;

+        [DataMember(Name = "OSWarnings", EmitDefaultValue = false)]
+        private List<OSWarning> m_osWarnings;
+
        // todo: remove after feature-flag DistributedTask.EvaluateContainerOnRunner is enabled everywhere
        [IgnoreDataMember]
        private string m_jobContainerResourceAlias;
--- a/src/Sdk/DTPipelines/Pipelines/OSWarning.cs
+++ b/src/Sdk/DTPipelines/Pipelines/OSWarning.cs
@@ -0,0 +1,44 @@
+using System;
+using System.ComponentModel;
+using System.Runtime.Serialization;
+
+namespace GitHub.DistributedTask.Pipelines
+{
+    /// <summary>
+    /// Information to check whether the OS is going to be deprecated soon
+    /// </summary>
+    [DataContract]
+    [EditorBrowsable(EditorBrowsableState.Never)]
+    public sealed class OSWarning
+    {
+        /// <summary>
+        /// Gets or sets the file to check
+        /// </summary>
+        [DataMember(EmitDefaultValue = false)]
+        public String FilePath
+        {
+            get;
+            set;
+        }
+
+        /// <summary>
+        /// Gets or sets the regular expression to match
+        /// </summary>
+        [DataMember(EmitDefaultValue = false)]
+        public String RegularExpression
+        {
+            get;
+            set;
+        }
+
+        /// <summary>
+        /// Gets or sets the warning annotation message, if the regular expression matches the content of the file
+        /// </summary>
+        [DataMember(EmitDefaultValue = false)]
+        public String Warning
+        {
+            get;
+            set;
+        }
+    }
+}
--- a/src/Sdk/DTPipelines/Pipelines/ObjectTemplating/PipelineTemplateConstants.cs
+++ b/src/Sdk/DTPipelines/Pipelines/ObjectTemplating/PipelineTemplateConstants.cs
@@ -29,6 +29,7 @@ namespace GitHub.DistributedTask.Pipelines.ObjectTemplating
        public const String Id = "id";
        public const String If = "if";
        public const String Image = "image";
+        public const String ImageName = "image-name";
        public const String Include = "include";
        public const String Inputs = "inputs";
        public const String Job = "job";
@@ -60,6 +61,7 @@ namespace GitHub.DistributedTask.Pipelines.ObjectTemplating
        public const String Services = "services";
        public const String Shell = "shell";
        public const String Skipped = "skipped";
+        public const String Snapshot = "snapshot";
        public const String StepEnv = "step-env";
        public const String StepIfResult = "step-if-result";
        public const String StepWith = "step-with";
--- a/src/Sdk/DTPipelines/Pipelines/ObjectTemplating/PipelineTemplateConverter.cs
+++ b/src/Sdk/DTPipelines/Pipelines/ObjectTemplating/PipelineTemplateConverter.cs
@@ -346,6 +346,39 @@ namespace GitHub.DistributedTask.Pipelines.ObjectTemplating
            return result;
        }

+        internal static Snapshot ConvertToJobSnapshotRequest(TemplateContext context, TemplateToken token)
+        {
+            string imageName = null;
+            if (token is StringToken snapshotStringLiteral)
+            {
+                imageName = snapshotStringLiteral.Value;
+            }
+            else
+            {
+                var snapshotMapping = token.AssertMapping($"{PipelineTemplateConstants.Snapshot}");
+                foreach (var snapshotPropertyPair in snapshotMapping)
+                {
+                    var propertyName = snapshotPropertyPair.Key.AssertString($"{PipelineTemplateConstants.Snapshot} key");
+                    switch (propertyName.Value)
+                    {
+                        case PipelineTemplateConstants.ImageName:
+                            imageName = snapshotPropertyPair.Value.AssertString($"{PipelineTemplateConstants.Snapshot} {propertyName}").Value;
+                            break;
+                        default:
+                            propertyName.AssertUnexpectedValue($"{PipelineTemplateConstants.Snapshot} key");
+                            break;
+                    }
+                }
+            }
+
+            if (String.IsNullOrEmpty(imageName))
+            {
+                return null;
+            }
+
+            return new Snapshot(imageName);
+        }
+
        private static ActionStep ConvertToStep(
            TemplateContext context,
            TemplateToken stepsItem,
--- a/src/Sdk/DTPipelines/Pipelines/ObjectTemplating/PipelineTemplateEvaluator.cs
+++ b/src/Sdk/DTPipelines/Pipelines/ObjectTemplating/PipelineTemplateEvaluator.cs
@@ -370,6 +370,32 @@ namespace GitHub.DistributedTask.Pipelines.ObjectTemplating
            return result;
        }

+        public Snapshot EvaluateJobSnapshotRequest(TemplateToken token,
+            DictionaryContextData contextData,
+            IList<IFunctionInfo> expressionFunctions)
+        {
+            var result = default(Snapshot);
+
+            if (token != null && token.Type != TokenType.Null)
+            {
+                var context = CreateContext(contextData, expressionFunctions);
+                try
+                {
+                    token = TemplateEvaluator.Evaluate(context, PipelineTemplateConstants.Snapshot, token, 0, null, omitHeader: true);
+                    context.Errors.Check();
+                    result = PipelineTemplateConverter.ConvertToJobSnapshotRequest(context, token);
+                }
+                catch (Exception ex) when (!(ex is TemplateValidationException))
+                {
+                    context.Errors.Add(ex);
+                }
+
+                context.Errors.Check();
+            }
+
+            return result;
+        }
+
        private TemplateContext CreateContext(
            DictionaryContextData contextData,
            IList<IFunctionInfo> expressionFunctions,
--- a/Show More
+++ b/Show More
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