diff --git a/README.md b/README.md
index beddb3251..68635c8c7 100644
--- a/README.md
+++ b/README.md
@@ -1,9 +1,9 @@
-# GitHub Actions Runner
-
+# GitHub Actions Runner
+
[](https://github.com/actions/runner/actions)
The runner is the application that runs a job from a GitHub Actions workflow. The runner can run on the [hosted machine pools](https://github.com/actions/virtual-environments) or run on [self-hosted environments](https://help.github.com/en/actions/automating-your-workflow-with-github-actions/about-self-hosted-runners).
diff --git a/docs/start/envlinux.md b/docs/start/envlinux.md
index f7927783d..4e27cf2ec 100644
--- a/docs/start/envlinux.md
+++ b/docs/start/envlinux.md
@@ -28,7 +28,7 @@ Execute ./bin/installdependencies.sh to install any missing Dotnet Core 3.0 depe
```
You can easily correct the problem by executing `./bin/installdependencies.sh`.
The `installdependencies.sh` script should install all required dependencies on all supported Linux versions
-> Note: The `installdependencies.sh` script will try to use the default package management mechanism on your Linux flavor (ex. `yum`/`apt-get`/`apt`). You might need to deal with error coming from the package management mechanism related to your setup, like [#1353](https://github.com/Microsoft/vsts-agent/issues/1353)
+> Note: The `installdependencies.sh` script will try to use the default package management mechanism on your Linux flavor (ex. `yum`/`apt-get`/`apt`).
### Full dependencies list
diff --git a/images/arm/Dockerfile b/images/arm/Dockerfile
deleted file mode 100644
index 233468fd0..000000000
--- a/images/arm/Dockerfile
+++ /dev/null
@@ -1,7 +0,0 @@
-FROM mcr.microsoft.com/dotnet/core/runtime-deps:2.1
-
-RUN apt-get update \
- && apt-get install -y --no-install-recommends \
- curl \
- git \
- && rm -rf /var/lib/apt/lists/*
diff --git a/images/centos6/Dockerfile b/images/centos6/Dockerfile
deleted file mode 100644
index 8270e68b9..000000000
--- a/images/centos6/Dockerfile
+++ /dev/null
@@ -1,150 +0,0 @@
-FROM centos:6
-
-# Install dependencies
-
-RUN yum install -y \
- centos-release-SCL \
- epel-release \
- wget \
- unzip \
- && \
- rpm --import http://linuxsoft.cern.ch/cern/slc6X/x86_64/RPM-GPG-KEY-cern && \
- wget -O /etc/yum.repos.d/slc6-devtoolset.repo http://linuxsoft.cern.ch/cern/devtoolset/slc6-devtoolset.repo && \
- yum install -y \
- "perl(Time::HiRes)" \
- autoconf \
- cmake \
- cmake3 \
- devtoolset-2-toolchain \
- doxygen \
- expat-devel \
- gcc \
- gcc-c++ \
- gdb \
- gettext-devel \
- krb5-devel \
- libedit-devel \
- libidn-devel \
- libmetalink-devel \
- libnghttp2-devel \
- libssh2-devel \
- libunwind-devel \
- libuuid-devel \
- lttng-ust-devel \
- lzma \
- ncurses-devel \
- openssl-devel \
- perl-devel \
- python-argparse \
- python27 \
- readline-devel \
- swig \
- xz \
- zlib-devel \
- && \
- yum clean all
-
-# Build and install clang and lldb 3.9.1
-
-RUN wget ftp://sourceware.org/pub/binutils/snapshots/binutils-2.29.1.tar.xz && \
- wget http://releases.llvm.org/3.9.1/cfe-3.9.1.src.tar.xz && \
- wget http://releases.llvm.org/3.9.1/llvm-3.9.1.src.tar.xz && \
- wget http://releases.llvm.org/3.9.1/lldb-3.9.1.src.tar.xz && \
- wget http://releases.llvm.org/3.9.1/compiler-rt-3.9.1.src.tar.xz && \
- \
- tar -xf binutils-2.29.1.tar.xz && \
- tar -xf llvm-3.9.1.src.tar.xz && \
- mkdir llvm-3.9.1.src/tools/clang && \
- mkdir llvm-3.9.1.src/tools/lldb && \
- mkdir llvm-3.9.1.src/projects/compiler-rt && \
- tar -xf cfe-3.9.1.src.tar.xz --strip 1 -C llvm-3.9.1.src/tools/clang && \
- tar -xf lldb-3.9.1.src.tar.xz --strip 1 -C llvm-3.9.1.src/tools/lldb && \
- tar -xf compiler-rt-3.9.1.src.tar.xz --strip 1 -C llvm-3.9.1.src/projects/compiler-rt && \
- rm binutils-2.29.1.tar.xz && \
- rm cfe-3.9.1.src.tar.xz && \
- rm lldb-3.9.1.src.tar.xz && \
- rm llvm-3.9.1.src.tar.xz && \
- rm compiler-rt-3.9.1.src.tar.xz && \
- \
- mkdir llvmbuild && \
- cd llvmbuild && \
- scl enable python27 devtoolset-2 \
- ' \
- cmake3 \
- -DCMAKE_CXX_COMPILER=/opt/rh/devtoolset-2/root/usr/bin/g++ \
- -DCMAKE_C_COMPILER=/opt/rh/devtoolset-2/root/usr/bin/gcc \
- -DCMAKE_LINKER=/opt/rh/devtoolset-2/root/usr/bin/ld \
- -DCMAKE_BUILD_TYPE=Release \
- -DLLVM_LIBDIR_SUFFIX=64 \
- -DLLVM_ENABLE_EH=1 \
- -DLLVM_ENABLE_RTTI=1 \
- -DLLVM_BINUTILS_INCDIR=../binutils-2.29.1/include \
- ../llvm-3.9.1.src \
- && \
- make -j $(($(getconf _NPROCESSORS_ONLN)+1)) && \
- make install \
- ' && \
- cd .. && \
- rm -r llvmbuild && \
- rm -r llvm-3.9.1.src && \
- rm -r binutils-2.29.1
-
-# Build and install curl 7.45.0
-
-RUN wget https://curl.haxx.se/download/curl-7.45.0.tar.lzma && \
- tar -xf curl-7.45.0.tar.lzma && \
- rm curl-7.45.0.tar.lzma && \
- cd curl-7.45.0 && \
- scl enable python27 devtoolset-2 \
- ' \
- ./configure \
- --disable-dict \
- --disable-ftp \
- --disable-gopher \
- --disable-imap \
- --disable-ldap \
- --disable-ldaps \
- --disable-libcurl-option \
- --disable-manual \
- --disable-pop3 \
- --disable-rtsp \
- --disable-smb \
- --disable-smtp \
- --disable-telnet \
- --disable-tftp \
- --enable-ipv6 \
- --enable-optimize \
- --enable-symbol-hiding \
- --with-ca-bundle=/etc/pki/tls/certs/ca-bundle.crt \
- --with-nghttp2 \
- --with-gssapi \
- --with-ssl \
- --without-librtmp \
- && \
- make install \
- ' && \
- cd .. && \
- rm -r curl-7.45.0
-
-# Install ICU 57.1
-
-RUN wget http://download.icu-project.org/files/icu4c/57.1/icu4c-57_1-RHEL6-x64.tgz && \
- tar -xf icu4c-57_1-RHEL6-x64.tgz -C / && \
- rm icu4c-57_1-RHEL6-x64.tgz
-
-# Compile and install a version of the git that supports the features that cli repo build needs
-# NOTE: The git needs to be built after the curl so that it can use the libcurl to add https
-# protocol support.
-RUN \
- wget https://www.kernel.org/pub/software/scm/git/git-2.9.5.tar.gz && \
- tar -xf git-2.9.5.tar.gz && \
- rm git-2.9.5.tar.gz && \
- cd git-2.9.5 && \
- make configure && \
- ./configure --prefix=/usr/local --without-tcltk && \
- make -j $(nproc --all) all && \
- make install && \
- cd .. && \
- rm -r git-2.9.5
-
-ENV LD_LIBRARY_PATH=/usr/local/lib