diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..8bb04b2
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,17 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://help.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: "nuget" # See documentation for possible values
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "daily"
+
+ # Maintain dependencies for GitHub Actions
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "daily"
diff --git a/.github/workflows/CI_build.yml b/.github/workflows/CI_build.yml
new file mode 100644
index 0000000..8dca648
--- /dev/null
+++ b/.github/workflows/CI_build.yml
@@ -0,0 +1,52 @@
+name: CI_build
+
+on: [push, pull_request]
+
+jobs:
+  build:
+
+    runs-on: windows-latest
+    strategy:
+      max-parallel: 6
+      matrix:
+        build_configuration: [Release]
+        build_platform: [Any CPU]
+        build_boost_version: [1_72_0]
+        build_boost_version_dot: [1.72.0]
+        build_msvc_version_dot: [14.2, 14.1]
+    steps:
+    - name: Checkout repo
+      uses: actions/checkout@v2
+
+    - name: Setup Nuget.exe
+      uses: nuget/setup-nuget@v1
+
+    - name: restore input nuget packages
+      working-directory: builder\
+      run: |
+           nuget restore builder\packages.config -PackagesDirectory packages
+           nuget restore builderTest\packages.config -PackagesDirectory packages
+
+    - name: Setup to add MSBuild.exe to path
+      uses: microsoft/setup-msbuild@v1
+
+    - name: MSBuild of builder
+      working-directory: builder\
+      run: |
+           msbuild builder.sln /m /verbosity:minimal /t:restore /p:configuration="${{ matrix.build_configuration }}" /p:platform="${{ matrix.build_platform }}"
+           msbuild builder.sln /m /p:configuration="${{ matrix.build_configuration }}" /p:platform="${{ matrix.build_platform }}"
+      
+    - name: boost download
+      working-directory: .
+      run: |
+          Set-Location -Path 'D:\a'
+          New-Item -ItemType directory -Path D:\a\boost
+          Set-Location -Path 'D:\a\boost'
+          (New-Object System.Net.WebClient).DownloadFile("https://dl.bintray.com/boostorg/release/${{ matrix.build_boost_version_dot }}/binaries/boost_${{ matrix.build_boost_version }}-msvc-${{ matrix.build_msvc_version_dot }}-64.exe", "D:\a\boost\boost_${{ matrix.build_boost_version }}-msvc-${{ matrix.build_msvc_version_dot }}-64.exe")
+          (New-Object System.Net.WebClient).DownloadFile("https://dl.bintray.com/boostorg/release/${{ matrix.build_boost_version_dot }}/binaries/boost_${{ matrix.build_boost_version }}-msvc-${{ matrix.build_msvc_version_dot }}-32.exe", "D:\a\boost\boost_${{ matrix.build_boost_version }}-msvc-${{ matrix.build_msvc_version_dot }}-32.exe")
+          .\boost_${{ matrix.build_boost_version }}-msvc-${{ matrix.build_msvc_version_dot }}-64.exe /SILENT /DIR=D:\a\boost\boost | Out-Null
+          .\boost_${{ matrix.build_boost_version }}-msvc-${{ matrix.build_msvc_version_dot }}-32.exe /SILENT /DIR=D:\a\boost\boost | Out-Null
+
+    - name: run builder
+      working-directory: builder\builder\bin\Release\
+      run: .\builder.exe
diff --git a/.gitignore b/.gitignore
index 833cf5f..aff241d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -48,6 +48,6 @@ builder/packages/repositories.config
 *.suo
 /log.txt
 /builder/packages/Framework.G1.1.0.13.0
-/builder/packages/NuGet.CommandLine.2.8.3
+/builder/packages/NuGet.CommandLine.2.8.6
 /builder/builderTest/bin/Debug
 .vs/
\ No newline at end of file
diff --git a/appveyor.yml b/appveyor.yml
new file mode 100644
index 0000000..e7c4a49
--- /dev/null
+++ b/appveyor.yml
@@ -0,0 +1,76 @@
+version: 1.72.{build}
+
+
+environment:
+  matrix:
+  #- PlatformToolset: v141
+  #  APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+
+  - PlatformToolset: v142
+    APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
+    BUILD_BOOST_VERSION: 1_72_0
+    BUILD_BOOST_VERSION_DOT: 1.72.0
+    BUILD_MSVC_VERSION_DOT: 14.2
+
+configuration:
+    - Release
+    #- Debug
+
+platform:
+    - Any CPU
+
+install:
+    - if "%platform%"=="Any CPU" set archi=amd64
+    - if "%platform%"=="Any CPU" set platform_input=Any CPU
+
+
+    - if "%PlatformToolset%"=="v140" call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" %archi%
+    - if "%PlatformToolset%"=="v141" call "C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvarsall.bat" %archi%
+    - if "%PlatformToolset%"=="v142" call "C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Auxiliary\Build\vcvarsall.bat" %archi%
+
+    - cd "%APPVEYOR_BUILD_FOLDER%"\..\..
+    - mkdir boost
+    - cd boost
+    #  build from source, but fails due to runtime limitation as each build takes ~ 40min
+    #- appveyor DownloadFile https://dl.bintray.com/boostorg/release/%BUILD_BOOST_VERSION_DOT%/source/boost_%BUILD_BOOST_VERSION%.7z
+    #- boost.bat
+    #  complete zip, but fails due to storage limitations on appveyor (bintray download is much faster than sourceforge)
+    #- appveyor DownloadFile https://dl.bintray.com/boostorg/release/%BUILD_BOOST_VERSION_DOT%/binaries/boost_%BUILD_BOOST_VERSION%-bin-msvc-all-32-64.7z
+    #- appveyor DownloadFile https://sourceforge.net/projects/boost/files/boost-binaries/%BUILD_BOOST_VERSION_DOT%/boost_%BUILD_BOOST_VERSION%-bin-msvc-all-32-64.7z
+    #- 7z x -y boost_%BUILD_BOOST_VERSION%-bin-msvc-all-32-64.7z > nul
+    #- rename boost_%BUILD_BOOST_VERSION%-bin-msvc-all-32-64 boost
+    - appveyor DownloadFile https://dl.bintray.com/boostorg/release/%BUILD_BOOST_VERSION_DOT%/binaries/boost_%BUILD_BOOST_VERSION%-msvc-%BUILD_MSVC_VERSION_DOT%-32.exe
+    - appveyor DownloadFile https://dl.bintray.com/boostorg/release/%BUILD_BOOST_VERSION_DOT%/binaries/boost_%BUILD_BOOST_VERSION%-msvc-%BUILD_MSVC_VERSION_DOT%-64.exe
+    - boost_%BUILD_BOOST_VERSION%-msvc-%BUILD_MSVC_VERSION_DOT%-64.exe /SILENT /DIR=C:\boost\boost
+    - boost_%BUILD_BOOST_VERSION%-msvc-%BUILD_MSVC_VERSION_DOT%-32.exe /SILENT /DIR=C:\boost\boost
+
+    - nuget restore "%APPVEYOR_BUILD_FOLDER%"\builder\builder\packages.config -PackagesDirectory "%APPVEYOR_BUILD_FOLDER%"\builder\packages
+    - nuget restore "%APPVEYOR_BUILD_FOLDER%"\builder\builderTest\packages.config -PackagesDirectory "%APPVEYOR_BUILD_FOLDER%"\builder\packages
+
+
+build_script:
+    - cd "%APPVEYOR_BUILD_FOLDER%"\builder
+    - msbuild builder.sln /m /verbosity:minimal /t:restore /p:configuration="%configuration%" /p:platform="%platform_input%" /logger:"C:\Program Files\AppVeyor\BuildAgent\Appveyor.MSBuildLogger.dll"
+    - msbuild builder.sln /m /verbosity:minimal /p:configuration="%configuration%" /p:platform="%platform_input%" /logger:"C:\Program Files\AppVeyor\BuildAgent\Appveyor.MSBuildLogger.dll"
+    - cd "%APPVEYOR_BUILD_FOLDER%"
+
+after_build:
+    - cd "%APPVEYOR_BUILD_FOLDER%"\builder\builder\bin\Release\
+    - call builder.exe
+
+artifacts:
+    #- path: installer\build\**\*.*
+    #  name: releases
+
+deploy:
+    provider: GitHub
+    auth_token:
+        secure: #!TODO!
+    artifact: releases
+    draft: false
+    prerelease: false
+    force_update: true
+    on:
+        appveyor_repo_tag: true
+        PlatformToolset: v142
+        configuration: Release
diff --git a/boost.bat b/boost.bat
index 2dea952..38b0114 100644
--- a/boost.bat
+++ b/boost.bat
@@ -3,15 +3,15 @@ cd ..\boost\
 
 call bootstrap.bat
 
-b2 headers
+b2 -j%NUMBER_OF_PROCESSORS% headers
 
 rem add 'call :link XX.X' if you need to run for specific version of Visual C++ compiler.
 
 call :link 14.0
-call :link 12.0
-call :link 11.0
-call :link 10.0
-call :link 9.0
+rem call :link 12.0
+rem call :link 11.0
+rem call :link 10.0
+rem call :link 9.0
 
 goto :eof
 
@@ -41,7 +41,7 @@ echo link=%2
 echo runtime-link=%3
 echo threading=%4
 echo }
-call :build %1 %2 %3 %4 32
+rem call :build %1 %2 %3 %4 32
 call :build %1 %2 %3 %4 64
 goto :eof
 
@@ -54,5 +54,5 @@ echo threading=%4
 echo address-model=%5
 echo }
 rem change this line if you need to specify additional options to compiler.
-b2 architecture=x86 link=%2 runtime-link=%3 threading=%4 address-model=%5 stage --stagedir=address-model-%5 --toolset=msvc-%1 --without-python
+b2 -j%NUMBER_OF_PROCESSORS% architecture=x86 link=%2 runtime-link=%3 threading=%4 address-model=%5 stage --stagedir=address-model-%5 --toolset=msvc-%1 --without-python
 goto :eof
diff --git a/builder/builder/Nuspec.cs b/builder/builder/Nuspec.cs
index 2b69c4b..cff60dc 100644
--- a/builder/builder/Nuspec.cs
+++ b/builder/builder/Nuspec.cs
@@ -84,7 +84,7 @@ private static void CreateNuspec(
             nuspec.CreateDocument().Save(nuspecFile);
             Process.Start(
                 new ProcessStartInfo(
-                    @"..\..\..\packages\NuGet.CommandLine.2.8.3\tools\nuget.exe", 
+                    @"..\..\..\packages\NuGet.CommandLine.2.8.6\tools\nuget.exe", 
                     "pack " + nuspecFile)
                 {
                     UseShellExecute = false,
diff --git a/builder/builder/packages.config b/builder/builder/packages.config
index 0b1f4c1..52403d3 100644
--- a/builder/builder/packages.config
+++ b/builder/builder/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Framework.G1" version="1.0.13.0" targetFramework="net45" userInstalled="true" />
-  <package id="NuGet.CommandLine" version="2.8.3" targetFramework="net45" userInstalled="true" />
+  <package id="NuGet.CommandLine" version="2.8.6" targetFramework="net45" userInstalled="true" />
 </packages>
\ No newline at end of file