diff --git a/images/linux/scripts/installers/1604/dotnetcore-sdk.sh b/images/linux/scripts/installers/1604/dotnetcore-sdk.sh
index e772d924..9baa83e9 100644
--- a/images/linux/scripts/installers/1604/dotnetcore-sdk.sh
+++ b/images/linux/scripts/installers/1604/dotnetcore-sdk.sh
@@ -34,11 +34,6 @@ for latest_package in ${LATEST_DOTNET_PACKAGES[@]}; do
     echo "Determing if .NET Core ($latest_package) is installed"
     if ! IsInstalled $latest_package; then
         echo "Could not find .NET Core ($latest_package), installing..."
-        curl https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor > microsoft.gpg
-        mv microsoft.gpg /etc/apt/trusted.gpg.d/microsoft.gpg
-        sh -c 'echo "deb [arch=amd64] https://packages.microsoft.com/repos/microsoft-ubuntu-bionic-prod bionic main" > /etc/apt/sources.list.d/dotnetdev.list'
-        apt-get install apt-transport-https
-        apt-get update
         apt-get install $latest_package -y
     else
         echo ".NET Core ($latest_package) is already installed"
diff --git a/images/linux/scripts/installers/1604/kubernetes-tools.sh b/images/linux/scripts/installers/1604/kubernetes-tools.sh
index 934fe92c..448ecd05 100644
--- a/images/linux/scripts/installers/1604/kubernetes-tools.sh
+++ b/images/linux/scripts/installers/1604/kubernetes-tools.sh
@@ -17,7 +17,7 @@ apt-get update
 apt-get install -y kubectl
 
 # Install Helm
-curl -L https://git.io/get_helm.sh | bash
+curl -L https://raw.githubusercontent.com/helm/helm/master/scripts/get | bash
 
 # Run tests to determine that the software installed as expected
 echo "Testing to make sure that script performed as expected, and basic scenarios work"
diff --git a/images/linux/scripts/installers/1804/dotnetcore-sdk.sh b/images/linux/scripts/installers/1804/dotnetcore-sdk.sh
index e772d924..3b80d2cb 100644
--- a/images/linux/scripts/installers/1804/dotnetcore-sdk.sh
+++ b/images/linux/scripts/installers/1804/dotnetcore-sdk.sh
@@ -30,6 +30,9 @@ mksamples()
 
 set -e
 
+# Disable telemetry
+export DOTNET_CLI_TELEMETRY_OPTOUT=1
+
 for latest_package in ${LATEST_DOTNET_PACKAGES[@]}; do
     echo "Determing if .NET Core ($latest_package) is installed"
     if ! IsInstalled $latest_package; then
diff --git a/images/linux/scripts/installers/1804/kubernetes-tools.sh b/images/linux/scripts/installers/1804/kubernetes-tools.sh
index b0a6f43f..ba6f0aa0 100644
--- a/images/linux/scripts/installers/1804/kubernetes-tools.sh
+++ b/images/linux/scripts/installers/1804/kubernetes-tools.sh
@@ -19,7 +19,7 @@ apt-get update
 apt-get install -y kubectl
 
 # Install Helm
-curl -L https://git.io/get_helm.sh | bash
+curl -L https://raw.githubusercontent.com/helm/helm/master/scripts/get | bash
 
 # Run tests to determine that the software installed as expected
 echo "Testing to make sure that script performed as expected, and basic scenarios work"
diff --git a/images/linux/scripts/installers/clang.sh b/images/linux/scripts/installers/clang.sh
index b8e5fa40..0a7f2252 100644
--- a/images/linux/scripts/installers/clang.sh
+++ b/images/linux/scripts/installers/clang.sh
@@ -1,31 +1,61 @@
 #!/bin/bash
 ################################################################################
-##  File:  example.sh
-##  Desc:  This is an example script that can be copied to add a new software
-##         installer to the image
+##  File:  clang.sh
+##  Desc:  Installs Clang compiler (versions: 6, 8 and 9)
 ################################################################################
 
 # Source the helpers for use with the script
 source $HELPER_SCRIPTS/document.sh
 source $HELPER_SCRIPTS/apt.sh
 
+function InstallClang {
+    version=$1
+
+    echo "Installing clang-$version..."
+    # Clang 6.0 is not supported by automatic installation script (`llvm.sh`)
+    # Thus we have to install it explicitly
+    if [[ $version == 6* ]]; then
+        apt-get install -y "clang-$version" "lldb-$version" "lld-$version"
+    else
+        ./llvm.sh $version
+    fi
+
+    # Run tests to determine that the software installed as expected
+    echo "Testing to make sure that script performed as expected, and basic scenarios work"
+    for cmd in clang-$version clang++-$version; do
+        if ! command -v $cmd; then
+            echo "$cmd was not installed"
+            exit 1
+        fi
+    done
+
+    # Document what was added to the image
+    echo "Documenting clang-$version..."
+    DocumentInstalledItem "Clang $version ($(clang-$version --version | head -n 1 | cut -d ' ' -f 3 | cut -d '-' -f 1))"
+}
+
+# Install Clang compiler
 wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | apt-key add -
 apt-add-repository "deb http://apt.llvm.org/$(lsb_release -cs)/ llvm-toolchain-$(lsb_release -cs)-6.0 main"
-apt-get update
-apt-get install -y clang-6.0 lldb-6.0 lld-6.0
+apt-get update -y
 
-update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-6.0 100
-update-alternatives --install /usr/bin/clang clang /usr/bin/clang-6.0 100
+# Download script for automatic installation
+wget https://apt.llvm.org/llvm.sh
+chmod +x llvm.sh
 
-# Run tests to determine that the software installed as expected
-echo "Testing to make sure that script performed as expected, and basic scenarios work"
-for cmd in clang clang++ clang-6.0 clang++-6.0; do
-    if ! command -v $cmd; then
-        echo "$cmd was not installed"
-        exit 1
-    fi
+versions=(
+    "6.0"
+    "8"
+    "9"
+)
+
+for version in ${versions[*]}
+do
+    InstallClang $version
 done
 
-# Document what was added to the image
-echo "Lastly, documenting what we added to the metadata file"
-DocumentInstalledItem "Clang 6.0 ($(clang-6.0 --version | head -n 1 | sed 's/~/\\~/g'))"
+rm llvm.sh
+
+# Make Clang 9 default
+update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-9 100
+update-alternatives --install /usr/bin/clang clang /usr/bin/clang-9 100
diff --git a/images/linux/scripts/installers/dpkg-config.sh b/images/linux/scripts/installers/dpkg-config.sh
new file mode 100644
index 00000000..e92e4270
--- /dev/null
+++ b/images/linux/scripts/installers/dpkg-config.sh
@@ -0,0 +1,19 @@
+#!/bin/bash
+
+# This is the anti-frontend. It never interacts with you  at  all,
+# and  makes  the  default  answers  be used for all questions. It
+# might mail error messages to root, but that's it;  otherwise  it
+# is  completely  silent  and  unobtrusive, a perfect frontend for
+# automatic installs. If you are using this front-end, and require
+# non-default  answers  to questions, you will need to preseed the
+# debconf database
+echo 'DEBIAN_FRONTEND=noninteractive' | tee -a /etc/environment
+
+# dpkg can be instructed not to ask for confirmation
+# when replacing a configuration file (with the --force-confdef --force-confold options)
+cat <<EOF >> /etc/apt/apt.conf.d/10dpkg-options
+Dpkg::Options {
+  "--force-confdef";
+  "--force-confold";
+}
+EOF
\ No newline at end of file
diff --git a/images/linux/scripts/installers/gcc.sh b/images/linux/scripts/installers/gcc.sh
index 328d5c76..86575568 100644
--- a/images/linux/scripts/installers/gcc.sh
+++ b/images/linux/scripts/installers/gcc.sh
@@ -7,19 +7,35 @@
 # Source the helpers for use with the script
 source $HELPER_SCRIPTS/document.sh
 
+function InstallGcc {
+    version=$1
+
+    echo "Installing $version..."
+    apt-get install $version -y
+
+    # Run tests to determine that the software installed as expected
+    echo "Testing to make sure that script performed as expected, and basic scenarios work"
+    if ! command -v $version; then
+        echo "$version was not installed"
+        exit 1
+    fi
+
+    # Document what was added to the image
+    echo "Documenting $version..."
+    DocumentInstalledItem "GNU C++ $($version --version | head -n 1 | cut -d ' ' -f 4)"
+}
+
 # Install GNU C++ compiler
 add-apt-repository ppa:ubuntu-toolchain-r/test -y
 apt-get update -y
-apt-get install g++-7 -y
 
+versions=(
+    "g++-7"
+    "g++-8"
+    "g++-9"
+)
 
-# Run tests to determine that the software installed as expected
-echo "Testing to make sure that script performed as expected, and basic scenarios work"
-if ! command -v g++-7; then
-    echo "GNU C++ was not installed"
-    exit 1
-fi
-
-# Document what was added to the image
-echo "Lastly, documenting what we added to the metadata file"
-DocumentInstalledItem "GNU C++ $(g++-7 --version | head -n 1 | cut -d ' ' -f 4)"
+for version in ${versions[*]}
+do
+    InstallGcc $version
+done
diff --git a/images/linux/scripts/installers/gfortran.sh b/images/linux/scripts/installers/gfortran.sh
new file mode 100644
index 00000000..1e392839
--- /dev/null
+++ b/images/linux/scripts/installers/gfortran.sh
@@ -0,0 +1,40 @@
+#!/bin/bash
+################################################################################
+##  File:  gfortran.sh
+##  Desc:  Installs GNU Fortran
+################################################################################
+
+# Source the helpers for use with the script
+source $HELPER_SCRIPTS/document.sh
+
+function InstallFortran {
+    version=$1
+
+    echo "Installing $version..."
+    apt-get install $version -y
+
+    # Run tests to determine that the software installed as expected
+    echo "Testing to make sure that script performed as expected, and basic scenarios work"
+    if ! command -v $version; then
+        echo "$version was not installed"
+        exit 1
+    fi
+
+    # Document what was added to the image
+    echo "Documenting $version..."
+    DocumentInstalledItem "GNU Fortran $($version --version | head -n 1 | cut -d ' ' -f 5)"
+}
+
+# Install GNU Fortran compiler
+add-apt-repository ppa:ubuntu-toolchain-r/test -y
+apt-get update -y
+
+versions=(
+    "gfortran-8"
+    "gfortran-9"
+)
+
+for version in ${versions[*]}
+do
+    InstallFortran $version
+done
diff --git a/images/linux/scripts/installers/google-chrome.sh b/images/linux/scripts/installers/google-chrome.sh
index 20396e2a..5d19a0f4 100644
--- a/images/linux/scripts/installers/google-chrome.sh
+++ b/images/linux/scripts/installers/google-chrome.sh
@@ -39,11 +39,14 @@ wget "https://chromedriver.storage.googleapis.com/$LATEST_CHROMEDRIVER_VERSION/c
 unzip chromedriver_linux64.zip
 rm chromedriver_linux64.zip
 
-CHROMEDRIVER_BIN="/usr/bin/chromedriver"
+CHROMEDRIVER_DIR="/usr/local/share/chrome_driver"
+CHROMEDRIVER_BIN="$CHROMEDRIVER_DIR/chromedriver"
+
+mkdir -p $CHROMEDRIVER_DIR
 mv "chromedriver" $CHROMEDRIVER_BIN
-chown root:root $CHROMEDRIVER_BIN
 chmod +x $CHROMEDRIVER_BIN
-echo "CHROMEWEBDRIVER=$CHROMEDRIVER_BIN" | tee -a /etc/environment
+ln -s "$CHROMEDRIVER_BIN" /usr/bin/
+echo "CHROMEWEBDRIVER=$CHROMEDRIVER_DIR" | tee -a /etc/environment
 
 # Run tests to determine that the chromedriver installed as expected
 echo "Testing to make sure that script performed as expected, and basic scenarios work"
diff --git a/images/linux/scripts/installers/nodejs.sh b/images/linux/scripts/installers/nodejs.sh
index c4d6296e..5b4777a6 100644
--- a/images/linux/scripts/installers/nodejs.sh
+++ b/images/linux/scripts/installers/nodejs.sh
@@ -8,7 +8,7 @@
 source $HELPER_SCRIPTS/document.sh
 
 # Install LTS Node.js and related build tools
-curl -sL https://git.io/n-install | bash -s -- -ny -
+curl -sL https://raw.githubusercontent.com/mklement0/n-install/stable/bin/n-install | bash -s -- -ny -
 ~/n/bin/n lts
 npm install -g grunt gulp n parcel-bundler typescript
 npm install -g --save-dev webpack webpack-cli
diff --git a/images/linux/ubuntu1604.json b/images/linux/ubuntu1604.json
index 30f25d9a..6cef1b7f 100644
--- a/images/linux/ubuntu1604.json
+++ b/images/linux/ubuntu1604.json
@@ -133,6 +133,7 @@
                 "{{template_dir}}/scripts/installers/erlang.sh",
                 "{{template_dir}}/scripts/installers/firefox.sh",
                 "{{template_dir}}/scripts/installers/gcc.sh",
+                "{{template_dir}}/scripts/installers/gfortran.sh",
                 "{{template_dir}}/scripts/installers/git.sh",
                 "{{template_dir}}/scripts/installers/1604/go.sh",
                 "{{template_dir}}/scripts/installers/google-chrome.sh",
@@ -162,7 +163,9 @@
                 "{{template_dir}}/scripts/installers/subversion.sh",
                 "{{template_dir}}/scripts/installers/terraform.sh",
                 "{{template_dir}}/scripts/installers/vcpkg.sh",
-                "{{template_dir}}/scripts/installers/zeit-now.sh"
+                "{{template_dir}}/scripts/installers/zeit-now.sh",
+                "{{template_dir}}/scripts/installers/dpkg-config.sh"
+
             ],
             "environment_vars": [
                 "METADATA_FILE={{user `metadata_file`}}",
diff --git a/images/linux/ubuntu1804.json b/images/linux/ubuntu1804.json
index 2b128c0c..fde3d240 100644
--- a/images/linux/ubuntu1804.json
+++ b/images/linux/ubuntu1804.json
@@ -136,6 +136,7 @@
                 "{{template_dir}}/scripts/installers/erlang.sh",
                 "{{template_dir}}/scripts/installers/firefox.sh",
                 "{{template_dir}}/scripts/installers/gcc.sh",
+                "{{template_dir}}/scripts/installers/gfortran.sh",
                 "{{template_dir}}/scripts/installers/git.sh",
                 "{{template_dir}}/scripts/installers/1804/go.sh",
                 "{{template_dir}}/scripts/installers/google-chrome.sh",
@@ -165,7 +166,8 @@
                 "{{template_dir}}/scripts/installers/subversion.sh",
                 "{{template_dir}}/scripts/installers/terraform.sh",
                 "{{template_dir}}/scripts/installers/vcpkg.sh",
-                "{{template_dir}}/scripts/installers/zeit-now.sh"
+                "{{template_dir}}/scripts/installers/zeit-now.sh",
+                "{{template_dir}}/scripts/installers/dpkg-config.sh"
             ],
             "environment_vars": [
                 "METADATA_FILE={{user `metadata_file`}}",
diff --git a/images/macos/macos-10.15-Readme.md b/images/macos/macos-10.15-Readme.md
index 2a3e9b49..83d6c3a2 100644
--- a/images/macos/macos-10.15-Readme.md
+++ b/images/macos/macos-10.15-Readme.md
@@ -1,34 +1,34 @@
 ---
 title: GitHub Hosted Github Mojave 10.15 VM Image Updates
 description: Software used on build machines
-date: Week 4
+date: Week 6
 ---
 
-#### ⚠️ We are going to change the default Xcode to 11.3.1 next week.
-#### Xcode 11.2.1 set by default
+#### Xcode 11.3.1 set by default
 ## Operating System
 
-- OS X 10.15.2 (19C57) **Catalina**
+- OS X 10.15.3 (19D76) **Catalina**
 
 ## Installed Software
 ### Language and Runtime
 - Java 1.7: (Zulu 7.36.0.5-CA-macosx) (build 1.7.0_252-b10)
-- Java 1.8: (Zulu 8.44.0.9-CA-macosx) (build 1.8.0_242-b20) (default)
+- Java 1.8: (Zulu 8.44.0.11-CA-macosx) (build 1.8.0_242-b20) (default)
 - Java 11: Zulu11.37+17-CA (build 11.0.6+10-LTS)
 - Java 12: Zulu12.3+11-CA (build 12.0.2+3)
 - Java 13: Zulu13.29+9-CA (build 13.0.2+6-MTS)
+- Rust 1.41.0
 - Node.js v12.14.1
 - NVM 0.33.11
-- NVM - Cached node versions: v6.17.1 v8.17.0 v10.18.1 v12.14.1 v13.6.0
-- PowerShell 6.2.3
+- NVM - Cached node versions: v6.17.1 v8.17.0 v10.18.1 v12.14.1 v13.7.0
+- PowerShell 6.2.4
 - Python 2.7.17
 - Python 3.7.6
 - Ruby 2.6.5p114
-- Rust 1.40.0
 - .NET SDK 2.0.0 3.0.100 3.0.101 3.0.102 3.1.100 3.1.101
-- Go 1.13.6
+- Go 1.13.7
 
 ### Package Management
+- Rustup 1.21.1
 - Bundler version 2.1.4
 - Carthage 0.34.0
 - CocoaPods 1.8.4
@@ -38,34 +38,35 @@ date: Week 4
 - NuGet 5.3.1.6268
 - Pip 19.3.1 (python 2.7)
 - Pip 19.3.1 (python 3.7)
-- Rustup 1.21.1
 - Miniconda 4.7.12
 - RubyGems 3.1.2
 
 ### Project Management
 - Apache Maven 3.6.3
-- Gradle 6.1
+- Gradle 6.1.1
 
 ### Utilities
 - Curl 7.68.0
 - Git: 2.25.0
-- Git LFS: 2.9.2
+- Git LFS: 2.10.0
 - GNU Wget 1.20.3
 - Subversion (SVN) 1.13.0
-- GNU parallel 20191222
+- GNU parallel 20200122
 - OpenSSL 1.0.2t  10 Sep 2019
 - jq 1.6
 - gpg (GnuPG) 2.2.19
 
 ### Tools
-- Fastlane 2.140.0
-- Cmake 3.16.2
+- Fastlane 2.141.0
+- Cmake 3.16.3
 - App Center CLI 2.3.3
 - Azure CLI 2.0.80
 
 ### Browsers
 - Google Chrome 79.0.3945.130
 - ChromeDriver 79.0.3945.36
+- Microsoft Edge 79.0.309.71
+- MSEdgeDriver 79.0.309.71
 
 ### Toolcache
 #### Ruby
@@ -82,12 +83,12 @@ date: Week 4
 - 3.8.1
 
 #### PyPy
-- 2.7.13
+- 2.7.17
 - 3.6.9
 
 ### Xamarin
 #### Visual Studio for Mac
-- 8.4.1.4
+- 8.4.3.12
 
 #### Mono
 - 6.6.0.155
@@ -115,7 +116,7 @@ date: Week 4
 ### Xcode
 | Version                        | Build                          | Path                           |
 | ------------------------------ | ------------------------------ | ------------------------------ |
-| 11.3.1                         | 11C505                         | /Applications/Xcode_11.3.1.app |
+| 11.3.1 (default)               | 11C505                         | /Applications/Xcode_11.3.1.app |
 | 11.3                           | 11C29                          | /Applications/Xcode_11.3.app   |
 | 11.2.1                         | 11B500                         | /Applications/Xcode_11.2.1.app |
 | 11.2                           | 11B52                          | /Applications/Xcode_11.2.app   |
@@ -209,6 +210,7 @@ date: Week 4
 | build-tools-29.0.0                       | Android SDK Build-Tools, Revision 29.0.0 |
 | build-tools-29.0.1                       | Android SDK Build-Tools, Revision 29.0.1 |
 | build-tools-29.0.2                       | Android SDK Build-Tools, Revision 29.0.2 |
+| build-tools-29.0.3                       | Android SDK Build-Tools, Revision 29.0.3 |
 
 #### Android Utils
 | Package Name     | Version          |
diff --git a/images/win/Windows2019-Readme.md b/images/win/Windows2019-Readme.md
index 47089227..28c15342 100644
--- a/images/win/Windows2019-Readme.md
+++ b/images/win/Windows2019-Readme.md
@@ -125,7 +125,8 @@ _Environment:_
 
 ## .NET 4.8
 
-_Version:_ 4.8.03761
+_Version:_ 4.8.03761
+_Path:_ C:\Program Files (x86)\Microsoft SDKs\Windows\v10.0A\bin\NETFX 4.8 Tools
 
 ## Windows Driver Kit
 
diff --git a/images/win/scripts/Installers/Install-NodeLts.ps1 b/images/win/scripts/Installers/Install-NodeLts.ps1
index 2490cdfe..e98e7f39 100644
--- a/images/win/scripts/Installers/Install-NodeLts.ps1
+++ b/images/win/scripts/Installers/Install-NodeLts.ps1
@@ -31,3 +31,4 @@ npm install -g gulp-cli
 npm install -g parcel-bundler
 npm install -g --save-dev webpack webpack-cli
 npm install -g yarn
+npm install -g lerna
diff --git a/images/win/scripts/Installers/Validate-NET48.ps1 b/images/win/scripts/Installers/Validate-NET48.ps1
index d48565bf..a0b43c1c 100644
--- a/images/win/scripts/Installers/Validate-NET48.ps1
+++ b/images/win/scripts/Installers/Validate-NET48.ps1
@@ -22,6 +22,7 @@ $SoftwareName = ".NET 4.8"
 
 $Description = @"
 _Version:_ $version
+_Path:_ ${Env:ProgramFiles(x86)}\Microsoft SDKs\Windows\v10.0A\bin\NETFX 4.8 Tools
 "@
 
 Add-SoftwareDetailsToMarkdown -SoftwareName $SoftwareName -DescriptionMarkdown $Description
diff --git a/images/win/scripts/Installers/Validate-NodeLts.ps1 b/images/win/scripts/Installers/Validate-NodeLts.ps1
index f2c86faf..7d42a040 100644
--- a/images/win/scripts/Installers/Validate-NodeLts.ps1
+++ b/images/win/scripts/Installers/Validate-NodeLts.ps1
@@ -26,6 +26,16 @@ else
     exit 1
 }
 
+if(Get-Command -Name 'lerna')
+{
+    Write-Host "lerna $(lerna --version) on path"
+}
+else
+{
+    Write-Host "lerna is not on path"
+    exit 1
+}
+
 
 
 if( $(node --version) -match  'v(?<version>.*)' )