diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
new file mode 100644
index 00000000..3a34fbe5
--- /dev/null
+++ b/.github/workflows/coverage.yml
@@ -0,0 +1,51 @@
+---
+name: coverage
+
+on:
+  push:
+    branches:
+      - master
+    paths-ignore:
+      - '**.md'
+      - '.mailmap'
+      - 'ChangeLog*'
+      - 'whatsnew*'
+      - 'LICENSE'
+
+jobs:
+  linux:
+    runs-on: ubuntu-16.04
+    steps:
+      - uses: actions/checkout@v2.0.0
+      - name: Cache
+        uses: actions/cache@v1.0.3
+        with:
+          path: build
+          key: ${{ matrix.os }}-coverage
+
+      - name: Install Depends
+        run: sudo apt install zlib1g-dev libssl-dev build-essential lcov
+
+      - name: Build And Test
+        shell: bash
+        run: |
+            export JOBS=20
+            export CTEST_PARALLEL_LEVEL=$JOBS
+            export CTEST_OUTPUT_ON_FAILURE=1
+            mkdir -p build
+            cd build
+            cmake .. -DEVENT__COVERAGE=ON -DCMAKE_BUILD_TYPE=Debug
+            make -j $JOBS
+            make verify_coverage
+
+      - name: Coveralls GitHub Action
+        uses: coverallsapp/github-action@v1.0.1
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          path-to-lcov: ./build/coverage.info.cleaned
+
+      - uses: actions/upload-artifact@v1
+        if: failure()
+        with:
+          name: coverage-build
+          path: build
diff --git a/.github/workflows/doxygen.yml b/.github/workflows/doxygen.yml
new file mode 100644
index 00000000..a03c2410
--- /dev/null
+++ b/.github/workflows/doxygen.yml
@@ -0,0 +1,58 @@
+---
+name: doxygen
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  Doxygen:
+    runs-on: ubuntu-18.04
+    strategy:
+      fail-fast: false
+
+    steps:
+      - uses: actions/checkout@v2.0.0
+      - name: Install Depends
+        run: |
+          sudo apt install doxygen
+
+      - name: Generate Doxygen
+        shell: bash
+        run: |
+          mkdir build
+          cd build
+          cmake -DEVENT__DOXYGEN=ON ..
+          make doxygen
+
+      - name: Deploy Documentation
+        env:
+          LIBEVENT_DEPLOY_PRI: ${{ secrets.LIBEVENT_DEPLOY_PRI }}
+          COMMIT_ID: ${{ github.sha }}
+        run: |
+          [[ -n $LIBEVENT_DEPLOY_PRI ]] || exit 0
+
+          mkdir -p ~/.ssh
+          echo "$LIBEVENT_DEPLOY_PRI" > ~/.ssh/id_rsa
+          chmod 600 ~/.ssh/id_rsa
+          ssh-keyscan github.com >> ~/.ssh/known_hosts
+
+          user_name="${{ github.event.head_commit.author.name }}"
+          user_email="${{ github.event.head_commit.author.email }}"
+          short_commit_id="${COMMIT_ID:0:7}"
+          owner_name="${{ github.event.repository.owner.name }}"
+
+          cd ./build/doxygen/html
+          git init
+          git config --local user.name $user_name
+          git config --local user.email $user_email
+          git add -f .
+          git commit -m "Update documentation (libevent/libevent@$short_commit_id)"
+          git push -f git@github.com:$owner_name/doc master
+
+      - uses: actions/upload-artifact@v1
+        if: failure()
+        with:
+          name: doxygen-build
+          path: build
diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
new file mode 100644
index 00000000..a9bf4220
--- /dev/null
+++ b/.github/workflows/linux.yml
@@ -0,0 +1,157 @@
+---
+name: linux
+
+on:
+  pull_request:
+    types: [opened, synchronize]
+    paths-ignore:
+      - '**.md'
+      - '.mailmap'
+      - 'ChangeLog*'
+      - 'whatsnew*'
+      - 'LICENSE'
+  push:
+    paths-ignore:
+      - '**.md'
+      - '.mailmap'
+      - 'ChangeLog*'
+      - 'whatsnew*'
+      - 'LICENSE'
+
+jobs:
+  cmake:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-18.04]
+        EVENT_MATRIX:
+          - NONE
+          - DISABLE_OPENSSL
+          - DISABLE_THREAD_SUPPORT
+          - DISABLE_DEBUG_MODE
+          - DISABLE_MM_REPLACEMENT
+          - COMPILER_CLANG
+          - TEST_EXPORT_STATIC
+          - TEST_EXPORT_SHARED
+
+    steps:
+      - uses: actions/checkout@v2.0.0
+      - name: Cache Build
+        uses: actions/cache@v1.1.0
+        with:
+          path: build
+          key: ${{ matrix.os }}-cmake-${{ matrix.EVENT_MATRIX }}
+
+      - name: Build And Test
+        shell: bash
+        run: |
+          if [ "${{ matrix.EVENT_MATRIX }}" == "DISABLE_OPENSSL" ]; then
+            EVENT_CMAKE_OPTIONS="-DEVENT__DISABLE_OPENSSL=ON"
+
+          elif [ "${{ matrix.EVENT_MATRIX }}" == "DISABLE_THREAD_SUPPORT" ]; then
+            EVENT_CMAKE_OPTIONS="-DEVENT__DISABLE_THREAD_SUPPORT=ON"
+
+          elif [ "${{ matrix.EVENT_MATRIX }}" == "DISABLE_DEBUG_MODE" ]; then
+            EVENT_CMAKE_OPTIONS="-DEVENT__DISABLE_DEBUG_MODE=ON"
+
+          elif [ "${{ matrix.EVENT_MATRIX }}" == "DISABLE_MM_REPLACEMENT" ]; then
+            EVENT_CMAKE_OPTIONS="-DEVENT__DISABLE_MM_REPLACEMENT=ON"
+
+          elif [ "${{ matrix.EVENT_MATRIX }}" == "COMPILER_CLANG" ]; then
+            EVENT_CMAKE_OPTIONS=""
+            export CC=clang
+
+          elif [ "${{ matrix.EVENT_MATRIX }}" == "TEST_EXPORT_STATIC" ]; then
+            EVENT_CMAKE_OPTIONS="-DEVENT__LIBRARY_TYPE=STATIC -DEVENT__DISABLE_TESTS=ON -DEVENT__DISABLE_SAMPLES=ON"
+
+          elif [ "${{ matrix.EVENT_MATRIX }}" == "TEST_EXPORT_SHARED" ]; then
+            EVENT_CMAKE_OPTIONS="-DEVENT__LIBRARY_TYPE=SHARED -DEVENT__DISABLE_TESTS=ON -DEVENT__DISABLE_SAMPLES=ON"
+
+          else
+            EVENT_CMAKE_OPTIONS=""
+          fi
+
+          #run build and test
+          JOBS=20
+          export CTEST_PARALLEL_LEVEL=$JOBS
+          export CTEST_OUTPUT_ON_FAILURE=1
+          mkdir -p build
+          cd build
+          echo [cmake]: cmake .. $EVENT_CMAKE_OPTIONS
+          cmake .. $EVENT_CMAKE_OPTIONS
+          cmake --build .
+          if [ "${{ matrix.EVENT_MATRIX }}" == "TEST_EXPORT_STATIC" ]; then
+            sudo python3 ../test-export/test-export.py static
+          elif [ "${{ matrix.EVENT_MATRIX }}" == "TEST_EXPORT_SHARED" ]; then
+            sudo python3 ../test-export/test-export.py shared
+          else
+            cmake --build . --target verify
+          fi
+
+      - uses: actions/upload-artifact@v1
+        if: failure()
+        with:
+          name: ${{ matrix.os }}-cmake-${{ matrix.EVENT_MATRIX }}-build
+          path: build
+
+  autotools:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-18.04]
+        EVENT_MATRIX:
+          - NONE
+          - DISABLE_OPENSSL
+          - DISABLE_THREAD_SUPPORT
+          - DISABLE_DEBUG_MODE
+          - DISABLE_MM_REPLACEMENT
+          - COMPILER_CLANG
+
+    steps:
+      - uses: actions/checkout@v2.0.0
+      - name: Cache Build
+        uses: actions/cache@v1.1.0
+        with:
+          path: build
+          key: ${{ matrix.os }}-autotools-${{ matrix.EVENT_MATRIX }}
+
+      - name: Build And Test
+        shell: bash
+        run: |
+          if [ "${{ matrix.EVENT_MATRIX }}" == "DISABLE_OPENSSL" ]; then
+            EVENT_CONFIGURE_OPTIONS="--disable-openssl"
+
+          elif [ "${{ matrix.EVENT_MATRIX }}" == "DISABLE_THREAD_SUPPORT" ]; then
+            EVENT_CONFIGURE_OPTIONS="--disable-thread-support"
+
+          elif [ "${{ matrix.EVENT_MATRIX }}" == "DISABLE_DEBUG_MODE" ]; then
+            EVENT_CONFIGURE_OPTIONS="--disable-debug-mode"
+
+          elif [ "${{ matrix.EVENT_MATRIX }}" == "DISABLE_MM_REPLACEMENT" ]; then
+            EVENT_CONFIGURE_OPTIONS="--disable-malloc-replacement"
+
+          elif [ "${{ matrix.EVENT_MATRIX }}" == "COMPILER_CLANG" ]; then
+            EVENT_CONFIGURE_OPTIONS=""
+            export CC=clang
+
+          else
+            EVENT_CONFIGURE_OPTIONS=""
+          fi
+
+          #run build and test
+          JOBS=20
+          ./autogen.sh
+          mkdir -p build
+          cd build
+          echo [configure]: ../configure $EVENT_CONFIGURE_OPTIONS
+          ../configure $EVENT_CONFIGURE_OPTIONS
+          make
+          make -j $JOBS verify
+
+      - uses: actions/upload-artifact@v1
+        if: failure()
+        with:
+          name: ${{ matrix.os }}-autotools-${{ matrix.EVENT_MATRIX }}-build
+          path: build
diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
new file mode 100644
index 00000000..fc5c3703
--- /dev/null
+++ b/.github/workflows/macos.yml
@@ -0,0 +1,166 @@
+---
+name: macos
+
+on:
+  pull_request:
+    types: [opened, synchronize]
+    paths-ignore:
+      - '**.md'
+      - '.mailmap'
+      - 'ChangeLog*'
+      - 'whatsnew*'
+      - 'LICENSE'
+  push:
+    paths-ignore:
+      - '**.md'
+      - '.mailmap'
+      - 'ChangeLog*'
+      - 'whatsnew*'
+      - 'LICENSE'
+
+jobs:
+  cmake:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-latest]
+        EVENT_MATRIX:
+          - NONE
+          - DISABLE_OPENSSL
+          - DISABLE_THREAD_SUPPORT
+          - DISABLE_DEBUG_MODE
+          - DISABLE_MM_REPLACEMENT
+          - TEST_EXPORT_STATIC
+          - TEST_EXPORT_SHARED
+          - OPENSSL_1_1
+
+    steps:
+      - uses: actions/checkout@v2.0.0
+
+      - name: Cache Build
+        uses: actions/cache@v1.1.0
+        with:
+          path: build
+          key: macos-10.15-cmake-${{ matrix.EVENT_MATRIX }}
+
+      - name: Build And Test
+        shell: bash
+        run: |
+          if [ "${{ matrix.EVENT_MATRIX }}" == "OPENSSL_1_1" ]; then
+            export OPENSSL_ROOT_DIR=/usr/local/opt/openssl@1.1
+          else
+            export OPENSSL_ROOT_DIR=/usr/local/opt/openssl
+          fi
+
+          if [ "${{ matrix.EVENT_MATRIX }}" == "DISABLE_OPENSSL" ]; then
+            EVENT_CMAKE_OPTIONS="-DEVENT__DISABLE_OPENSSL=ON"
+
+          elif [ "${{ matrix.EVENT_MATRIX }}" == "DISABLE_THREAD_SUPPORT" ]; then
+            EVENT_CMAKE_OPTIONS="-DEVENT__DISABLE_THREAD_SUPPORT=ON"
+
+          elif [ "${{ matrix.EVENT_MATRIX }}" == "DISABLE_DEBUG_MODE" ]; then
+            EVENT_CMAKE_OPTIONS="-DEVENT__DISABLE_DEBUG_MODE=ON"
+
+          elif [ "${{ matrix.EVENT_MATRIX }}" == "DISABLE_MM_REPLACEMENT" ]; then
+            EVENT_CMAKE_OPTIONS="-DEVENT__DISABLE_MM_REPLACEMENT=ON"
+
+          elif [ "${{ matrix.EVENT_MATRIX }}" == "TEST_EXPORT_STATIC" ]; then
+            EVENT_CMAKE_OPTIONS="-DEVENT__LIBRARY_TYPE=STATIC -DEVENT__DISABLE_TESTS=ON -DEVENT__DISABLE_SAMPLES=ON"
+
+          elif [ "${{ matrix.EVENT_MATRIX }}" == "TEST_EXPORT_SHARED" ]; then
+            EVENT_CMAKE_OPTIONS="-DEVENT__LIBRARY_TYPE=SHARED -DEVENT__DISABLE_TESTS=ON -DEVENT__DISABLE_SAMPLES=ON"
+
+          else
+            EVENT_CMAKE_OPTIONS=""
+          fi
+
+          #run build and test
+          JOBS=1
+          export CTEST_PARALLEL_LEVEL=$JOBS
+          export CTEST_OUTPUT_ON_FAILURE=1
+          mkdir -p build
+          cd build
+          echo [cmake]: cmake .. $EVENT_CMAKE_OPTIONS
+          cmake .. $EVENT_CMAKE_OPTIONS
+          cmake --build .
+          if [ "${{ matrix.EVENT_MATRIX }}" == "TEST_EXPORT_STATIC" ]; then
+            sudo python3 ../test-export/test-export.py static
+          elif [ "${{ matrix.EVENT_MATRIX }}" == "TEST_EXPORT_SHARED" ]; then
+            sudo python3 ../test-export/test-export.py shared
+          else
+            cmake --build . --target verify
+          fi
+
+      - uses: actions/upload-artifact@v1
+        if: failure()
+        with:
+          name: ${{ matrix.os }}-cmake-${{ matrix.EVENT_MATRIX }}-build
+          path: build
+
+  autotools:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-latest]
+        EVENT_MATRIX:
+          - NONE
+          - DISABLE_OPENSSL
+          - DISABLE_THREAD_SUPPORT
+          - DISABLE_DEBUG_MODE
+          - DISABLE_MM_REPLACEMENT
+          - OPENSSL_1_1
+
+    steps:
+      - uses: actions/checkout@v2.0.0
+
+      - name: Cache Build
+        uses: actions/cache@v1.1.0
+        with:
+          path: build
+          key: ${{ matrix.os }}-autotools-${{ matrix.EVENT_MATRIX }}
+
+      - name: Install Depends
+        run: brew install autoconf automake libtool pkg-config
+
+      - name: Build And Test
+        shell: bash
+        run: |
+          if [ "${{ matrix.EVENT_MATRIX }}" == "OPENSSL_1_1" ]; then
+            export PKG_CONFIG_PATH="/usr/local/opt/openssl@1.1/lib/pkgconfig:$PKG_CONFIG_PATH"
+          else
+            export PKG_CONFIG_PATH="/usr/local/opt/openssl/lib/pkgconfig:$PKG_CONFIG_PATH"
+          fi
+
+          if [ "${{ matrix.EVENT_MATRIX }}" == "DISABLE_OPENSSL" ]; then
+            EVENT_CONFIGURE_OPTIONS="--disable-openssl"
+
+          elif [ "${{ matrix.EVENT_MATRIX }}" == "DISABLE_THREAD_SUPPORT" ]; then
+            EVENT_CONFIGURE_OPTIONS="--disable-thread-support"
+
+          elif [ "${{ matrix.EVENT_MATRIX }}" == "DISABLE_DEBUG_MODE" ]; then
+            EVENT_CONFIGURE_OPTIONS="--disable-debug-mode"
+
+          elif [ "${{ matrix.EVENT_MATRIX }}" == "DISABLE_MM_REPLACEMENT" ]; then
+            EVENT_CONFIGURE_OPTIONS="--disable-malloc-replacement"
+
+          else
+            EVENT_CONFIGURE_OPTIONS=""
+          fi
+
+          #run build and test
+          JOBS=1
+          ./autogen.sh
+          mkdir -p build
+          cd build
+          echo [configure]: ../configure $EVENT_CONFIGURE_OPTIONS
+          ../configure $EVENT_CONFIGURE_OPTIONS
+          make
+          make -j $JOBS verify
+
+      - uses: actions/upload-artifact@v1
+        if: failure()
+        with:
+          name: ${{ matrix.os }}-autotools-${{ matrix.EVENT_MATRIX }}-build
+          path: build
diff --git a/.github/workflows/mingw.yml b/.github/workflows/mingw.yml
new file mode 100644
index 00000000..4624f054
--- /dev/null
+++ b/.github/workflows/mingw.yml
@@ -0,0 +1,88 @@
+---
+name: mingw
+
+on:
+  pull_request:
+    types: [opened, synchronize]
+    paths-ignore:
+      - '**.md'
+      - '.mailmap'
+      - 'ChangeLog*'
+      - 'whatsnew*'
+      - 'LICENSE'
+  push:
+    paths-ignore:
+      - '**.md'
+      - '.mailmap'
+      - 'ChangeLog*'
+      - 'whatsnew*'
+      - 'LICENSE'
+
+jobs:
+  windows:
+    runs-on: windows-2016
+    strategy:
+      fail-fast: false
+      matrix:
+        EVENT_MATRIX:
+          - none
+          - disable-openssl
+          - disable-thread-support
+          - disable-debug-mode
+          - disable-malloc-replacement
+
+    steps:
+      - uses: actions/checkout@v2.0.0
+
+      - name: Cache MingW
+        id: cache-mingw
+        uses: actions/cache@v1.0.3
+        with:
+          path: D:\a\_temp\msys
+          key: windows-mingw
+
+      - name: Cache Build
+        uses: actions/cache@v1.0.3
+        with:
+          path: build
+          key: mingw-${{ matrix.EVENT_MATRIX }}
+
+      - uses: numworks/setup-msys2@v1
+        if: steps.cache-mingw.outputs.cache-hit != 'true'
+        with:
+          msystem: MINGW64
+
+      - name: Install Dependes
+        if: steps.cache-mingw.outputs.cache-hit != 'true'
+        run: |
+          msys2do pacman -S --noconfirm mingw-w64-x86_64-gcc make autoconf automake libtool openssl-devel
+
+      - name: Build And Test
+        shell: powershell
+        run: |
+          $env:EVENT_CONFIGURE_OPTIONS=""
+          if ( "${{ matrix.EVENT_MATRIX }}" -ne "none" ) {
+            $env:EVENT_CONFIGURE_OPTIONS="--${{ matrix.EVENT_MATRIX }}"
+          }
+          $env:EVENT_TESTS_PARALLEL=1
+          $env:EVENT_BUILD_PARALLEL=10
+
+          $script='
+          export PATH="/mingw64/bin:/usr/bin:/bin:/usr/local/bin:/opt/bin:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl:$PATH"
+          ./autogen.sh 2>&1 3>&1
+          [[ $? -ne 0 ]] && exit 1
+          mkdir -p build
+          cd build
+          [[ $? -ne 0 ]] && exit 1
+          LDFLAGS="-L/usr/lib" CFLAGS="-I/usr/include" ../configure $EVENT_CONFIGURE_OPTIONS 2>&1
+          [[ $? -ne 0 ]] && exit 1
+          make -j $EVENT_BUILD_PARALLEL 2>&1
+          [[ $? -ne 0 ]] && exit 1
+          make verify -j $EVENT_TESTS_PARALLEL 2>&1 '
+          D:\a\_temp\msys\msys64\usr\bin\bash.exe -c $script
+
+      - uses: actions/upload-artifact@v1
+        if: failure()
+        with:
+          name: mingw-${{ matrix.EVENT_MATRIX }}-build
+          path: build
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
new file mode 100644
index 00000000..9eea22f9
--- /dev/null
+++ b/.github/workflows/windows.yml
@@ -0,0 +1,233 @@
+---
+name: windows
+
+on:
+  pull_request:
+    types: [opened, synchronize]
+    paths-ignore:
+      - '**.md'
+      - '.mailmap'
+      - 'ChangeLog*'
+      - 'whatsnew*'
+      - 'LICENSE'
+  push:
+    paths-ignore:
+      - '**.md'
+      - '.mailmap'
+      - 'ChangeLog*'
+      - 'whatsnew*'
+      - 'LICENSE'
+
+jobs:
+  vs2017:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [windows-2016]
+        EVENT_MATRIX: [NONE]
+
+    steps:
+      - uses: actions/checkout@v2.0.0
+
+      - name: Cache Depends
+        id: cache-depends
+        uses: actions/cache@v1.0.3
+        with:
+          path: C:\vcpkg\installed
+          key: ${{ matrix.os }}-vcpkg
+
+      - name: Cache Build
+        uses: actions/cache@v1.0.3
+        with:
+          path: build
+          key: ${{ matrix.os }}-${{ matrix.EVENT_MATRIX }}
+
+      - name: Install Depends
+        if: steps.cache-depends.outputs.cache-hit != 'true'
+        shell: powershell
+        run: |
+          vcpkg install openssl:x64-windows
+          vcpkg install zlib:x64-windows
+
+      - name: Build And Test
+        shell: powershell
+        run: |
+          $OPENSSL_ROOT_DIR="C:\vcpkg\installed\x64-windows"
+          $EVENT_BUILD_PARALLEL=10
+          $EVENT_TESTS_PARALLEL=1
+          $env:PATH="$OPENSSL_ROOT_DIR/bin;$env:PATH"
+
+          if ( "${{ matrix.EVENT_MATRIX }}" -eq "LIBRARY_TYPE_STATIC" ) {
+            $EVENT_CMAKE_OPTIONS="-DEVENT__LIBRARY_TYPE=STATIC"
+          }
+          elseif ( "${{ matrix.EVENT_MATRIX }}" -eq "DISABLE_OPENSSL" ) {
+            $EVENT_CMAKE_OPTIONS="-DEVENT__DISABLE_OPENSSL=ON"
+          }
+          elseif ( "${{ matrix.EVENT_MATRIX }}" -eq "DISABLE_THREAD_SUPPORT" ) {
+            $EVENT_CMAKE_OPTIONS="-DEVENT__DISABLE_THREAD_SUPPORT=ON"
+          }
+          elseif ( "${{ matrix.EVENT_MATRIX }}" -eq "DISABLE_DEBUG_MODE" ) {
+            $EVENT_CMAKE_OPTIONS="-DEVENT__DISABLE_DEBUG_MODE=ON"
+          }
+          elseif ( "${{ matrix.EVENT_MATRIX }}" -eq "DISABLE_MM_REPLACEMENT" ) {
+            $EVENT_CMAKE_OPTIONS="-DEVENT__DISABLE_MM_REPLACEMENT=ON"
+          }
+          elseif ( "${{ matrix.EVENT_MATRIX }}" -eq "UNICODE" ) {
+            $EVENT_CMAKE_OPTIONS="-DCMAKE_C_FLAGS='-DUNICODE -D_UNICODE'"
+          }
+          elseif ( "${{ matrix.EVENT_MATRIX }}" -eq "TEST_EXPORT_SHARED" ) {
+            $EVENT_CMAKE_OPTIONS="-DEVENT__DISABLE_TESTS=ON -DEVENT__DISABLE_SAMPLES=ON"
+          }
+          elseif ( "${{ matrix.EVENT_MATRIX }}" -eq "TEST_EXPORT_STATIC" ) {
+            $EVENT_CMAKE_OPTIONS="-DEVENT__LIBRARY_TYPE=STATIC -DEVENT__DISABLE_TESTS=ON -DEVENT__DISABLE_SAMPLES=ON"
+          }
+          else {
+            $EVENT_CMAKE_OPTIONS=""
+          }
+
+          if (-not (Test-Path -Path "./build")){
+            mkdir build
+          }
+          cd build
+          if ($LastExitCode -ne 0) { $host.SetShouldExit($LastExitCode) }
+
+          if ("${{ matrix.os }}" -eq "windows-2016") {
+            $CMAKE_CMD="cmake -G 'Visual Studio 15 2017 Win64' .. $EVENT_CMAKE_OPTIONS"
+          }
+          else { # windows-2019
+            $CMAKE_CMD="cmake -G 'Visual Studio 16 2019' -A x64 .. $EVENT_CMAKE_OPTIONS"
+          }
+          echo "[cmake] $CMAKE_CMD"
+          Invoke-Expression $CMAKE_CMD
+          if ($LastExitCode -ne 0) { $host.SetShouldExit($LastExitCode) }
+
+          cmake --build . -j $EVENT_BUILD_PARALLEL -- /nologo /verbosity:minimal
+          if ($LastExitCode -ne 0) { $host.SetShouldExit($LastExitCode) }
+
+          if ("${{ matrix.EVENT_MATRIX }}" -eq "TEST_EXPORT_STATIC") {
+            python ../test-export/test-export.py static
+          }
+          elseif ("${{ matrix.EVENT_MATRIX }}" -eq "TEST_EXPORT_SHARED") {
+            python ../test-export/test-export.py shared
+          }
+          else {
+            ctest --output-on-failure -j $EVENT_TESTS_PARALLEL
+          }
+
+      - uses: actions/upload-artifact@v1
+        if: failure()
+        with:
+          name: ${{ matrix.os }}-${{ matrix.EVENT_MATRIX }}-build
+          path: build
+
+  vs2019:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [windows-2019]
+        EVENT_MATRIX:
+          - NONE
+          - LIBRARY_TYPE_STATIC
+          - DISABLE_OPENSSL
+          - DISABLE_THREAD_SUPPORT
+          - DISABLE_DEBUG_MODE
+          - DISABLE_MM_REPLACEMENT
+          - DUNICODE
+          - TEST_EXPORT_SHARED
+          - TEST_EXPORT_STATIC
+
+    steps:
+      - uses: actions/checkout@v2.0.0
+
+      - name: Cache Depends
+        id: cache-depends
+        uses: actions/cache@v1.1.0
+        with:
+          path: C:\vcpkg\installed
+          key: ${{ matrix.os }}-vcpkg
+
+      - name: Cache Build
+        uses: actions/cache@v1.1.0
+        with:
+          path: build
+          key: ${{ matrix.os }}-${{ matrix.EVENT_MATRIX }}-build
+
+      - name: Install Depends
+        if: steps.cache-depends.outputs.cache-hit != 'true'
+        shell: powershell
+        run: |
+          vcpkg install openssl:x64-windows
+          vcpkg install zlib:x64-windows
+
+      - name: Build And Test
+        shell: powershell
+        run: |
+          $OPENSSL_ROOT_DIR="C:\vcpkg\installed\x64-windows"
+          $EVENT_BUILD_PARALLEL=10
+          $EVENT_TESTS_PARALLEL=1
+          $env:PATH="$OPENSSL_ROOT_DIR/bin;$env:PATH"
+
+          if ( "${{ matrix.EVENT_MATRIX }}" -eq "LIBRARY_TYPE_STATIC" ) {
+            $EVENT_CMAKE_OPTIONS="-DEVENT__LIBRARY_TYPE=STATIC"
+          }
+          elseif ( "${{ matrix.EVENT_MATRIX }}" -eq "DISABLE_OPENSSL" ) {
+            $EVENT_CMAKE_OPTIONS="-DEVENT__DISABLE_OPENSSL=ON"
+          }
+          elseif ( "${{ matrix.EVENT_MATRIX }}" -eq "DISABLE_THREAD_SUPPORT" ) {
+            $EVENT_CMAKE_OPTIONS="-DEVENT__DISABLE_THREAD_SUPPORT=ON"
+          }
+          elseif ( "${{ matrix.EVENT_MATRIX }}" -eq "DISABLE_DEBUG_MODE" ) {
+            $EVENT_CMAKE_OPTIONS="-DEVENT__DISABLE_DEBUG_MODE=ON"
+          }
+          elseif ( "${{ matrix.EVENT_MATRIX }}" -eq "DISABLE_MM_REPLACEMENT" ) {
+            $EVENT_CMAKE_OPTIONS="-DEVENT__DISABLE_MM_REPLACEMENT=ON"
+          }
+          elseif ( "${{ matrix.EVENT_MATRIX }}" -eq "UNICODE" ) {
+            $EVENT_CMAKE_OPTIONS="-DCMAKE_C_FLAGS='-DUNICODE -D_UNICODE'"
+          }
+          elseif ( "${{ matrix.EVENT_MATRIX }}" -eq "TEST_EXPORT_SHARED" ) {
+            $EVENT_CMAKE_OPTIONS="-DEVENT__DISABLE_TESTS=ON -DEVENT__DISABLE_SAMPLES=ON"
+          }
+          elseif ( "${{ matrix.EVENT_MATRIX }}" -eq "TEST_EXPORT_STATIC" ) {
+            $EVENT_CMAKE_OPTIONS="-DEVENT__LIBRARY_TYPE=STATIC -DEVENT__DISABLE_TESTS=ON -DEVENT__DISABLE_SAMPLES=ON"
+          }
+          else {
+            $EVENT_CMAKE_OPTIONS=""
+          }
+
+          if (-not (Test-Path -Path "./build")){
+            mkdir build
+          }
+          cd build
+          if ($LastExitCode -ne 0) { $host.SetShouldExit($LastExitCode) }
+
+          if ("${{ matrix.os }}" -eq "windows-2016") {
+            $CMAKE_CMD="cmake -G 'Visual Studio 15 2017 Win64' .. $EVENT_CMAKE_OPTIONS"
+          }
+          else { # windows-2019
+            $CMAKE_CMD="cmake -G 'Visual Studio 16 2019' -A x64 .. $EVENT_CMAKE_OPTIONS"
+          }
+          echo "[cmake] $CMAKE_CMD"
+          Invoke-Expression $CMAKE_CMD
+          if ($LastExitCode -ne 0) { $host.SetShouldExit($LastExitCode) }
+
+          cmake --build . -j $EVENT_BUILD_PARALLEL -- /nologo /verbosity:minimal
+          if ($LastExitCode -ne 0) { $host.SetShouldExit($LastExitCode) }
+
+          if ("${{ matrix.EVENT_MATRIX }}" -eq "TEST_EXPORT_STATIC") {
+            python ../test-export/test-export.py static
+          }
+          elseif ("${{ matrix.EVENT_MATRIX }}" -eq "TEST_EXPORT_SHARED") {
+            python ../test-export/test-export.py shared
+          }
+          else {
+            ctest --output-on-failure -j $EVENT_TESTS_PARALLEL
+          }
+
+      - uses: actions/upload-artifact@v1
+        if: failure()
+        with:
+          name: ${{ matrix.os }}-${{ matrix.EVENT_MATRIX }}-build
+          path: build
diff --git a/.travis.yml b/.travis.yml
index 89891493..a2f35ac1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -39,9 +39,9 @@ matrix:
     - os: linux
       env: EVENT_BUILD_METHOD=autotools EVENT_CONFIGURE_OPTIONS=""
       compiler: clang
-    # coveralls
-    - os: linux
-      env: EVENT_BUILD_METHOD=cmake EVENT_CMAKE_OPTIONS="-DEVENT__COVERAGE=ON -DCMAKE_BUILD_TYPE=debug" COVERALLS=yes
+    ## coveralls
+    #- os: linux
+    #  env: EVENT_BUILD_METHOD=cmake EVENT_CMAKE_OPTIONS="-DEVENT__COVERAGE=ON -DCMAKE_BUILD_TYPE=debug" COVERALLS=yes
     # test-export
     - os: linux
       env: EVENT_BUILD_METHOD=cmake EVENT_CMAKE_OPTIONS="-DEVENT__LIBRARY_TYPE=STATIC -DEVENT__DISABLE_TESTS=ON -DEVENT__DISABLE_SAMPLES=ON" TEST_EXPORT=STATIC
@@ -51,22 +51,22 @@ matrix:
     - os: linux
       dist: bionic
       env: EVENT_BUILD_METHOD=cmake EVENT_CMAKE_OPTIONS="" OPENSSL_1_1=yes
-    # deploy documentation to github pages
-    - os: linux
-      env: TOOL=doxygen
-      addons:
-        apt:
-          packages:
-            - doxygen
-            - doxygen-doc
-            - doxygen-latex
-            - doxygen-gui
-            - graphviz
-            - cmake
-      branches:
-        only:
-          - master
-      if: repo = libevent/libevent AND branch = master AND type != pull_request
+    ## deploy documentation to github pages
+    #- os: linux
+    #  env: TOOL=doxygen
+    #  addons:
+    #    apt:
+    #      packages:
+    #        - doxygen
+    #        - doxygen-doc
+    #        - doxygen-latex
+    #        - doxygen-gui
+    #        - graphviz
+    #        - cmake
+    #  branches:
+    #    only:
+    #      - master
+    #  if: repo = libevent/libevent AND branch = master AND type != pull_request
   fast_finish: true
 
 language: c
diff --git a/.yamllint b/.yamllint
index 6946975e..90d9514b 100644
--- a/.yamllint
+++ b/.yamllint
@@ -7,3 +7,5 @@ rules:
         level: warning
         indent-sequences: consistent
     line-length: disable
+    # github-actions "on:"
+    truthy: disable
diff --git a/cmake/AddEventLibrary.cmake b/cmake/AddEventLibrary.cmake
index 75225500..04f5837e 100644
--- a/cmake/AddEventLibrary.cmake
+++ b/cmake/AddEventLibrary.cmake
@@ -158,7 +158,8 @@ macro(add_event_library LIB_NAME)
                 "${LIB_NAME}_shared" PROPERTIES
                 OUTPUT_NAME "${LIB_NAME}-${EVENT_PACKAGE_RELEASE}"
                 VERSION "${CURRENT_MINUS_AGE}.${EVENT_ABI_LIBVERSION_AGE}.${EVENT_ABI_LIBVERSION_REVISION}"
-                SOVERSION "${CURRENT_MINUS_AGE}")
+                SOVERSION "${CURRENT_MINUS_AGE}"
+                INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib")
         endif()
 
         if (NOT WIN32)
diff --git a/cmake/CodeCoverage.cmake b/cmake/CodeCoverage.cmake
index eba85b3f..673d4fe3 100644
--- a/cmake/CodeCoverage.cmake
+++ b/cmake/CodeCoverage.cmake
@@ -74,16 +74,11 @@ ENDIF() # NOT GCOV_PATH
 IF(NOT CMAKE_COMPILER_IS_GNUCC)
 	# Clang version 3.0.0 and greater now supports gcov as well.
 	MESSAGE(WARNING "Compiler is not GNU gcc! Clang Version 3.0.0 and greater supports gcov as well, but older versions don't.")
-	
-	IF(NOT "${CMAKE_C_COMPILER_ID}" STREQUAL "Clang")
+	IF(NOT "${CMAKE_C_COMPILER_ID}" STREQUAL "Clang" AND NOT "${CMAKE_C_COMPILER_ID}" STREQUAL "AppleClang")
 		MESSAGE(FATAL_ERROR "Compiler is not GNU gcc! Aborting...")
 	ENDIF()
 ENDIF() # NOT CMAKE_COMPILER_IS_GNUCC
 
-IF ( NOT CMAKE_BUILD_TYPE STREQUAL "Debug" )
-  MESSAGE( WARNING "Code coverage results with an optimized (non-Debug) build may be misleading" )
-ENDIF() # NOT CMAKE_BUILD_TYPE STREQUAL "Debug"
-
 
 # Param _targetname     The name of new the custom make target
 # Param _testrunner     The name of the target which runs the tests.
@@ -108,15 +103,15 @@ FUNCTION(SETUP_TARGET_FOR_COVERAGE _targetname _testrunner _outputname)
 		
 		# Cleanup lcov
 		${LCOV_PATH} --directory . --zerocounters
-		
+		COMMAND ${CMAKE_COMMAND} -E remove ${_outputname}.info ${_outputname}.info.cleaned
+
 		# Run tests
 		COMMAND ${_testrunner} ${ARGV3}
 		
 		# Capturing lcov counters and generating report
 		COMMAND ${LCOV_PATH} --directory . --capture --output-file ${_outputname}.info
-		COMMAND ${LCOV_PATH} --remove ${_outputname}.info 'tests/*' '/usr/*' --output-file ${_outputname}.info.cleaned
+		COMMAND ${LCOV_PATH} --remove ${_outputname}.info '*/test/*' '/usr/*' --output-file ${CMAKE_BINARY_DIR}/${_outputname}.info.cleaned
 		COMMAND ${GENHTML_PATH} -o ${_outputname} ${_outputname}.info.cleaned
-		COMMAND ${CMAKE_COMMAND} -E remove ${_outputname}.info ${_outputname}.info.cleaned
 		
 		WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
 		COMMENT "Resetting code coverage counters to zero.\nProcessing code coverage counters and generating report."
diff --git a/test-export/test-export.py b/test-export/test-export.py
index 3be8193f..d71e5dba 100644
--- a/test-export/test-export.py
+++ b/test-export/test-export.py
@@ -48,11 +48,11 @@ def link_and_run(link, code):
         Returns 0 if links and runs successfully, otherwise 1.
     """
     exec_cmd("cmake --build . --target clean", True)
-    generator = ''
+    arch = ''
     if platform.system() == "Windows":
-        generator = '-G "Visual Studio 15 2017 Win64"'
+        arch = '-A x64'
     cmd = 'cmake .. %s -DEVENT__LINK_COMPONENT=%s -DEVENT__CODE_COMPONENT=%s' % (
-        generator, link, code)
+        arch, link, code)
     if link_type == "static":
         cmd = "".join([cmd, " -DLIBEVENT_STATIC_LINK=1"])
     r = exec_cmd(cmd, True)
diff --git a/test/regress.c b/test/regress.c
index dce58d5d..cf5060c0 100644
--- a/test/regress.c
+++ b/test/regress.c
@@ -3454,7 +3454,7 @@ struct testcase_t main_testcases[] = {
 	  TT_FORK|TT_NEED_BASE|TT_RETRIABLE, &basic_setup, NULL },
 	LEGACY(priorities, TT_FORK|TT_NEED_BASE),
 	BASIC(priority_active_inversion, TT_FORK|TT_NEED_BASE),
-	{ "common_timeout", test_common_timeout, TT_FORK|TT_NEED_BASE,
+	{ "common_timeout", test_common_timeout, TT_FORK|TT_NEED_BASE|TT_RETRIABLE,
 	  &basic_setup, NULL },
 
 	/* These legacy tests may not all need all of these flags. */