diff --git a/.github/workflows/abi.yml b/.github/workflows/abi.yml
new file mode 100644
index 00000000..18f0f502
--- /dev/null
+++ b/.github/workflows/abi.yml
@@ -0,0 +1,41 @@
+---
+name: abi
+
+on:
+  push:
+    branches:
+      - patches-2.1
+    tags:
+      - release-*
+
+jobs:
+  abi:
+    runs-on: ubuntu-18.04
+    if: "!contains(github.event.head_commit.message, 'ci skip')"
+    strategy:
+      fail-fast: false
+
+    steps:
+      - uses: actions/checkout@v2.0.0
+
+      - name: Install Dependencies
+        run:
+          sudo apt install
+            abi-tracker
+            abi-monitor
+            abi-dumper
+            abi-compliance-checker
+            pkgdiff
+            vtable-dumper
+
+      - name: Generate
+        shell: bash
+        run: |
+          ./extra/abi-check/abi_check.sh
+        env:
+          ABI_CHECK_ROOT: /tmp/le-abi-root
+
+      - uses: actions/upload-artifact@v1
+        with:
+          name: build
+          path: /tmp/le-abi-root/work/abi-check
diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
new file mode 100644
index 00000000..45b1292e
--- /dev/null
+++ b/.github/workflows/linux.yml
@@ -0,0 +1,210 @@
+---
+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 }}
+    if: "!contains(github.event.head_commit.message, 'ci skip')"
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-18.04]
+        EVENT_MATRIX:
+          - DIST
+          - NONE
+          - DISABLE_OPENSSL
+          - DISABLE_THREAD_SUPPORT
+          - DISABLE_DEBUG_MODE
+          - DISABLE_MM_REPLACEMENT
+          - COMPILER_CLANG
+          - TEST_EXPORT_STATIC
+          - TEST_EXPORT_SHARED
+          - ASAN
+          - TSAN
+          - UBSAN
+
+    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 }}-v2
+      - name: Cache Dist Build
+        uses: actions/cache@v1.1.0
+        with:
+          path: dist
+          key: ${{ matrix.os }}-cmake-dist-${{ matrix.EVENT_MATRIX }}-v2
+
+      - name: Build And Test
+        shell: bash
+        run: |
+          if [ "${{ matrix.EVENT_MATRIX }}" == "DIST" ]; then
+            ./autogen.sh
+            mkdir -p dist
+            cd dist
+            ../configure
+            rm -fr *.tar.gz
+            make dist
+            archive=$(echo *.tar.gz)
+            tar -vxf $archive
+            cd $(basename $archive .tar.gz)
+          fi
+
+          export TSAN_OPTIONS=suppressions=$PWD/extra/tsan.supp
+          export LSAN_OPTIONS=suppressions=$PWD/extra/lsan.supp
+
+          if [ "${{ 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"
+          elif [ "${{ matrix.EVENT_MATRIX }}" == "ASAN" ]; then
+            EVENT_CMAKE_OPTIONS="-DCMAKE_C_FLAGS=-fsanitize=address -DCMAKE_C_COMPILER=clang"
+          elif [ "${{ matrix.EVENT_MATRIX }}" == "TSAN" ]; then
+            EVENT_CMAKE_OPTIONS="-DCMAKE_C_FLAGS=-fsanitize=thread -DCMAKE_C_COMPILER=clang"
+          elif [ "${{ matrix.EVENT_MATRIX }}" == "UBSAN" ]; then
+            EVENT_CMAKE_OPTIONS="-DCMAKE_C_FLAGS=-fsanitize=undefined -DCMAKE_C_COMPILER=clang"
+          else
+            EVENT_CMAKE_OPTIONS=""
+          fi
+
+          #run build and test
+          JOBS=20
+          export CTEST_PARALLEL_LEVEL=$JOBS
+          export CTEST_OUTPUT_ON_FAILURE=1
+          mkdir -p build
+          cd build
+          echo [cmake]: cmake .. $EVENT_CMAKE_OPTIONS
+          cmake .. $EVENT_CMAKE_OPTIONS || (rm -rf * && 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
+      - uses: actions/upload-artifact@v1
+        if: failure()
+        with:
+          name: ${{ matrix.os }}-cmake-${{ matrix.EVENT_MATRIX }}-dist
+          path: dist
+
+  autotools:
+    runs-on: ${{ matrix.os }}
+    if: "!contains(github.event.head_commit.message, 'ci skip')"
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-18.04]
+        EVENT_MATRIX:
+          - DIST
+          - 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 }}-v2
+      - name: Cache Dist Build
+        uses: actions/cache@v1.1.0
+        with:
+          path: dist
+          key: ${{ matrix.os }}-autotools-dist-${{ matrix.EVENT_MATRIX }}-v2
+
+      - 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 [ "${{ matrix.EVENT_MATRIX }}" == "COMPILER_CLANG" ]; then
+            EVENT_CONFIGURE_OPTIONS=""
+            export CC=clang
+
+          else
+            EVENT_CONFIGURE_OPTIONS=""
+          fi
+
+          #run build and test
+          JOBS=20
+          ./autogen.sh
+
+          if [ "${{ matrix.EVENT_MATRIX }}" == "DIST" ]; then
+            mkdir -p dist
+            cd dist
+            rm -fr *.tar.gz
+            ../configure $EVENT_CONFIGURE_OPTIONS
+            make dist
+            archive=$(echo *.tar.gz)
+            tar -vxf $archive
+            cd $(basename $archive .tar.gz)
+          fi
+
+          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
+      - uses: actions/upload-artifact@v1
+        if: failure()
+        with:
+          name: ${{ matrix.os }}-autotools-${{ matrix.EVENT_MATRIX }}-dist
+          path: dist
diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
new file mode 100644
index 00000000..910a627a
--- /dev/null
+++ b/.github/workflows/macos.yml
@@ -0,0 +1,168 @@
+---
+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: ${{ matrix.os }}
+    if: "!contains(github.event.head_commit.message, 'ci skip')"
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-latest]
+        EVENT_MATRIX:
+          - NONE
+          - DISABLE_OPENSSL
+          - DISABLE_THREAD_SUPPORT
+          - DISABLE_DEBUG_MODE
+          - DISABLE_MM_REPLACEMENT
+          - TEST_EXPORT_STATIC
+          - TEST_EXPORT_SHARED
+          - OPENSSL_1_1
+
+    steps:
+      - uses: actions/checkout@v2.0.0
+
+      - name: Cache Build
+        uses: actions/cache@v1.1.0
+        with:
+          path: build
+          key: macos-10.15-cmake-${{ matrix.EVENT_MATRIX }}-v2
+
+      - 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 || (rm -rf * && 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 }}
+    if: "!contains(github.event.head_commit.message, 'ci skip')"
+    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 }}-v2
+
+      - 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..a297e8ca
--- /dev/null
+++ b/.github/workflows/mingw.yml
@@ -0,0 +1,170 @@
+---
+name: mingw
+
+on:
+  pull_request:
+    types: [opened, synchronize]
+    paths-ignore:
+      - '**.md'
+      - '.mailmap'
+      - 'ChangeLog*'
+      - 'whatsnew*'
+      - 'LICENSE'
+  push:
+    paths-ignore:
+      - '**.md'
+      - '.mailmap'
+      - 'ChangeLog*'
+      - 'whatsnew*'
+      - 'LICENSE'
+
+jobs:
+  autotools:
+    runs-on: windows-2019
+    if: "!contains(github.event.head_commit.message, 'ci skip')"
+    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@v1.1.2
+        with:
+          path: D:\a\_temp\msys
+          key: windows-mingw
+
+      - name: Cache Build
+        uses: actions/cache@v1.1.2
+        with:
+          path: build
+          key: mingw-autotools-${{ matrix.EVENT_MATRIX }}-v2
+
+      - 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 autoconf automake libtool mingw-w64-x86_64-openssl
+
+      - 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/mingw64/lib" CFLAGS="-I/mingw64/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
+
+  cmake:
+    runs-on: windows-2019
+    if: "!contains(github.event.head_commit.message, 'ci skip')"
+    strategy:
+      fail-fast: false
+      matrix:
+        EVENT_MATRIX:
+          - NONE
+          - DISABLE_OPENSSL
+          - DISABLE_THREAD_SUPPORT
+          - DISABLE_DEBUG_MODE
+          - DISABLE_MM_REPLACEMENT
+
+    steps:
+      - uses: actions/checkout@v2.0.0
+
+      - name: Cache MinGW
+        id: cache-mingw-cmake
+        uses: actions/cache@v1.1.2
+        with:
+          path: D:\a\_temp\msys
+          key: windows-mingw-cmake
+
+      - name: Cache Build
+        uses: actions/cache@v1.1.2
+        with:
+          path: build
+          key: mingw-cmake-${{ matrix.EVENT_MATRIX }}-v2
+
+      - uses: numworks/setup-msys2@v1
+        if: steps.cache-mingw-cmake.outputs.cache-hit != 'true'
+        with:
+          msystem: MINGW64
+
+      - name: Install Dependes
+        if: steps.cache-mingw-cmake.outputs.cache-hit != 'true'
+        run: |
+          msys2do pacman -S --noconfirm mingw-w64-x86_64-gcc mingw-w64-x86_64-openssl
+
+      - name: Build And Test
+        shell: powershell
+        run: |
+          $EVENT_CONFIGURE_OPTIONS=""
+          if ( "${{ matrix.EVENT_MATRIX }}" -ne "NONE" ) {
+            $EVENT_CONFIGURE_OPTIONS="-DEVENT__${{ matrix.EVENT_MATRIX }}=ON"
+          }
+          $env:PATH="D:\a\_temp\msys\msys64\mingw64\bin;D:\a\_temp\msys\msys64\usr\bin;$env:PATH"
+          mkdir build -ea 0
+          cd build
+          function cmake_configure($retry)
+          {
+            $errcode=0
+            try {
+              cmake .. -G "MSYS Makefiles" $EVENT_CONFIGURE_OPTIONS -DCMAKE_C_FLAGS=-w
+              $errcode=$LastExitCode
+            }
+            catch {
+              $errcode=1
+            }
+            finally {
+              if ($errcode -ne 0) {
+                if ($retry -eq 0) {
+                  $host.SetShouldExit($LastExitCode)
+                } else {
+                  echo "Remove all entries in build directory"
+                  rm -r -fo *
+                  cmake_configure 0
+                }
+              }
+            }
+          }
+          cmake_configure 1
+          cmake --build .
+          ctest -V
+
+      - 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..b30038a0
--- /dev/null
+++ b/.github/workflows/windows.yml
@@ -0,0 +1,256 @@
+---
+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 }}
+    if: "!contains(github.event.head_commit.message, 'ci skip')"
+    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 }}-v3
+
+      - 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"
+
+          mkdir build -ea 0
+          cd build
+
+          $CMAKE_CMD="cmake -G 'Visual Studio 15 2017 Win64' .."
+          function cmake_configure($retry)
+          {
+            $errcode=0
+            try {
+              if ($retry -eq 0) {
+                echo "[cmake configure retry] $CMAKE_CMD"
+              } else {
+                echo "[cmake configure] $CMAKE_CMD"
+              }
+              Invoke-Expression $CMAKE_CMD
+              $errcode=$LastExitCode
+            }
+            catch {
+              $errcode=1
+            }
+            finally {
+              if ($errcode -ne 0) {
+                if ($retry -eq 0) {
+                  $host.SetShouldExit($LastExitCode)
+                } else {
+                  echo "Remove all entries in build directory"
+                  rm -r -fo *
+                  cmake_configure 0
+                }
+              }
+            }
+          }
+          cmake_configure 1
+
+          try {
+            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 $EVENT_TESTS_PARALLEL
+              if ($LastExitCode -ne 0) { $host.SetShouldExit($LastExitCode) }
+            }
+          } catch {
+            $host.SetShouldExit($LastExitCode)
+          }
+
+      - uses: actions/upload-artifact@v1
+        if: failure()
+        with:
+          name: ${{ matrix.os }}-${{ matrix.EVENT_MATRIX }}-build
+          path: build
+
+  vs2019:
+    runs-on: ${{ matrix.os }}
+    if: "!contains(github.event.head_commit.message, 'ci skip')"
+    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 }}-v3
+
+      - 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 {
+            $EVENT_CMAKE_OPTIONS=""
+          }
+
+          mkdir build -ea 0
+          cd build
+
+          if ("${{ matrix.os }}" -eq "windows-2016") {
+            $CMAKE_CMD="cmake -G 'Visual Studio 15 2017 Win64' .."
+          }
+          else { # windows-2019
+            $CMAKE_CMD="cmake -G 'Visual Studio 16 2019' -A x64 .. $EVENT_CMAKE_OPTIONS"
+          }
+          function cmake_configure($retry)
+          {
+            $errcode=0
+            try {
+              if ($retry -eq 0) {
+                echo "[cmake configure retry] $CMAKE_CMD"
+              } else {
+                echo "[cmake configure] $CMAKE_CMD"
+              }
+              Invoke-Expression $CMAKE_CMD
+              $errcode=$LastExitCode
+            }
+            catch {
+              $errcode=1
+            }
+            finally {
+              if ($errcode -ne 0) {
+                if ($retry -eq 0) {
+                  $host.SetShouldExit($LastExitCode)
+                } else {
+                  echo "Remove all entries in build directory"
+                  rm -r -fo *
+                  cmake_configure 0
+                }
+              }
+            }
+          }
+          cmake_configure 1
+
+          try {
+            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 $EVENT_TESTS_PARALLEL
+              if ($LastExitCode -ne 0) { $host.SetShouldExit($LastExitCode) }
+            }
+          } catch {
+            $host.SetShouldExit($LastExitCode)
+          }
+
+      - uses: actions/upload-artifact@v1
+        if: failure()
+        with:
+          name: ${{ matrix.os }}-${{ matrix.EVENT_MATRIX }}-build
+          path: build
diff --git a/extra/lsan.supp b/extra/lsan.supp
new file mode 100644
index 00000000..c1b130bf
--- /dev/null
+++ b/extra/lsan.supp
@@ -0,0 +1,3 @@
+# TODO: temporary, until tests itself will be fixed
+leak:libcrypto.so
+leak:libssl.so
diff --git a/extra/tsan.supp b/extra/tsan.supp
new file mode 100644
index 00000000..414a12c1
--- /dev/null
+++ b/extra/tsan.supp
@@ -0,0 +1,2 @@
+# https://github.com/libevent/libevent/issues/777
+race:event_debug_mode_too_late