diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 00000000..04d1f1a0
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,67 @@
+name: build
+
+on:
+  push:
+    branches: [ dev, rel/* ]
+    tags: [ '*' ]
+  pull_request:
+    branches: [ dev, rel/* ]
+
+jobs:
+  build:
+    name: ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ macos-latest, ubuntu-latest, windows-latest ]
+        include:
+          - os: macos-latest
+            os_name: macos
+          - os: ubuntu-latest
+            os_name: linux
+          - os: windows-latest
+            os_name: windows
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v2
+
+    - name: Setup .NET Core SDK
+      uses: actions/setup-dotnet@v1
+
+    - name: Build, test and pack
+      run: eng\common\CIBuild.cmd -configuration Release -prepareMachine -integrationTest
+      if: ${{ runner.os == 'Windows' }}
+
+    - name: Build, test and pack
+      shell: pwsh
+      run: ./eng/common/cibuild.sh -configuration Release -prepareMachine -integrationTest
+      if: ${{ runner.os != 'Windows' }}
+
+    - name: Publish logs
+      uses: actions/upload-artifact@v1
+      with:
+        name: logs-${{ matrix.os_name }}
+        path: ./artifacts/log/Release
+
+    - name: Publish NuGet packages
+      uses: actions/upload-artifact@v1
+      with:
+        name: packages-${{ matrix.os_name }}
+        path: ./artifacts/packages/Release/Shipping
+
+    - name: Publish test results
+      uses: actions/upload-artifact@v1
+      with:
+        name: testresults-${{ matrix.os_name }}
+        path: ./artifacts/TestResults/Release
+
+    - name: Push NuGet packages to MyGet.org
+      run: dotnet nuget push "artifacts\packages\Release\Shipping\*.nupkg" --api-key ${{ secrets.MYGET_API_KEY }} --skip-duplicate --source https://www.myget.org/F/openiddict/ --symbol-source https://www.myget.org/F/openiddict/
+      if: ${{ github.repository_owner == 'openiddict' && (github.ref == 'refs/heads/dev' || startsWith(github.ref, 'refs/tags/')) && runner.os == 'Windows' }}
+
+    - name: Push NuGet packages to NuGet.org
+      run: dotnet nuget push "artifacts\packages\Release\Shipping\*.nupkg" --api-key ${{ secrets.NUGET_API_KEY }} --skip-duplicate --source https://api.nuget.org/v3/index.json
+      if: ${{ github.repository_owner == 'openiddict' && startsWith(github.ref, 'refs/tags/') && runner.os == 'Windows' }}
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index d0a4d5bb..00000000
--- a/.travis.yml
+++ /dev/null
@@ -1,22 +0,0 @@
-language: csharp
-mono: none
-dist: xenial
-addons:
-  apt:
-    packages:
-    - gettext
-    - libcurl4-openssl-dev
-    - libicu-dev
-    - libssl-dev
-    - libunwind8
-    - zlib1g
-env:
-  global:
-    - DOTNET_SKIP_FIRST_TIME_EXPERIENCE: true
-    - DOTNET_CLI_TELEMETRY_OPTOUT: 1
-os:
-  - linux
-  - osx
-osx_image: xcode8.2
-script:
-  - ./eng/common/cibuild.sh -configuration Release -prepareMachine -integrationTest
\ No newline at end of file
diff --git a/Directory.Build.props b/Directory.Build.props
index d3047adb..8470e50a 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -49,21 +49,21 @@
   </PropertyGroup>
 
   <!--
-    Arcade only allows the revision to contain up to two characters, and AppVeyor does not roll-over
+    Arcade only allows the revision to contain up to two characters, and GitHub Actions does not roll-over
     build numbers every day like Azure DevOps does. To balance these two requirements, set the official
     build ID to be the same format as the built-in default from Arcade, except with the revision number
     being the number of the quarter hour of the current time of day (24 * 4 = 96, which is less than 100).
     So a build between 00:00 and 00:14 would have a revision of 1, and a build between 23:45 and 23:59:59
     would have a revision of 97.
   -->
-  <PropertyGroup Condition=" '$(APPVEYOR)' == 'True' AND '$(APPVEYOR_PULL_REQUEST_NUMBER)' == '' ">
+  <PropertyGroup Condition=" '$(GITHUB_ACTIONS)' == 'true' AND '$(GITHUB_REF.StartsWith(`refs/pull/`))' == 'false' ">
     <_Hours>$([MSBuild]::Multiply($([System.DateTime]::Now.ToString(HH)), 4))</_Hours>
     <_QuarterHours>$([MSBuild]::Divide($([System.DateTime]::Now.ToString(mm)), 15))</_QuarterHours>
     <_QuarterHours>$([System.Math]::Floor($(_QuarterHours)))</_QuarterHours>
-    <_AppVeyorBuildRevision>$([MSBuild]::Add($(_Hours), $(_QuarterHours)))</_AppVeyorBuildRevision>
-    <_AppVeyorBuildRevision>$([MSBuild]::Add($(_AppVeyorBuildRevision), 1))</_AppVeyorBuildRevision>
+    <_GitHubActionsBuildRevision>$([MSBuild]::Add($(_Hours), $(_QuarterHours)))</_GitHubActionsBuildRevision>
+    <_GitHubActionsBuildRevision>$([MSBuild]::Add($(_GitHubActionsBuildRevision), 1))</_GitHubActionsBuildRevision>
     <OfficialBuild>true</OfficialBuild>
-    <OfficialBuildId>$([System.DateTime]::Now.ToString(yyyyMMdd)).$(_AppVeyorBuildRevision)</OfficialBuildId>
+    <OfficialBuildId>$([System.DateTime]::Now.ToString(yyyyMMdd)).$(_GitHubActionsBuildRevision)</OfficialBuildId>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/README.md b/README.md
index 0dbe3e65..1fb945a4 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,7 @@
 # OpenIddict
 ### The OpenID Connect stack you'll be addicted to.
 
-[![Build status](https://ci.appveyor.com/api/projects/status/46ofo2eusje0hcw2/branch/dev?svg=true)](https://ci.appveyor.com/project/openiddict/openiddict-core/branch/dev)
-[![Build status](https://travis-ci.org/openiddict/openiddict-core.svg?branch=dev)](https://travis-ci.org/openiddict/openiddict-core)
+[![Build status](https://github.com/openiddict/openiddict-core/workflows/build/badge.svg?branch=dev&event=push)](https://github.com/openiddict/openiddict-core/actions?query=workflow%3Abuild+branch%3Adev+event%3Apush)
 
 ## What's OpenIddict?
 
diff --git a/appveyor.yml b/appveyor.yml
deleted file mode 100644
index b4edc7e5..00000000
--- a/appveyor.yml
+++ /dev/null
@@ -1,19 +0,0 @@
-version: '{build}'
-image: Visual Studio 2017
-
-build_script:
-- cmd: eng\common\cibuild.cmd -configuration Release -prepareMachine -integrationTest
-
-test: off
-
-artifacts:
-- path: artifacts\packages\Release\Shipping\*.nupkg
-  name: NuGet
-
-deploy:
-- provider: NuGet
-  server: https://www.myget.org/F/openiddict/api/v2/package
-  api_key:
-    secure: 0ZVg9vnH4PzTu0CXjTZyDmvvzPMt1R8Yl1ObxleO8dAMk6M1AqmU3YmoaQkc2VNi
-  skip_symbols: false
-  symbol_server: https://www.myget.org/F/openiddict/api/v2/package
\ No newline at end of file