SkyAPM · wu-sheng · Jan 4, 2022 · Jan 2, 2022 · Jan 2, 2022 · Jan 2, 2022
diff --git a/README.md b/README.md
@@ -28,7 +28,7 @@ SkyAPM C#/.NET instrument agent
 > MyGet feed URL https://www.myget.org/F/skyapm-dotnet/api/v3/index.json
 
 # Supported
-- This project currently supports apps targeting netcoreapp2.0/netframework4.6.1 or higher.
+- This project currently supports apps targeting netcoreapp3.1、net5.0、net6.0 or higher.
 - [Supported middlewares, frameworks and libraries.](docs/Supported-list.md)
 
 # Features

diff --git a/appveyor.yml b/appveyor.yml
@@ -1,5 +1,5 @@
 version: '{build}'
-os: Visual Studio 2019
+os: Visual Studio 2022
 branches:
   only:
   - master

diff --git a/benchmark/SkyApm.Benchmark/SkyApm.Benchmark.csproj b/benchmark/SkyApm.Benchmark/SkyApm.Benchmark.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFrameworks>netcoreapp2.1</TargetFrameworks>
+    <TargetFrameworks>netcoreapp3.1;net5.0;net6.0</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>

diff --git a/sample/SkyApm.Sample.AspNet/App_Start/RouteConfig.cs b/sample/SkyApm.Sample.AspNet/App_Start/RouteConfig.cs
diff --git a/sample/SkyApm.Sample.AspNet/App_Start/WebApiConfig.cs b/sample/SkyApm.Sample.AspNet/App_Start/WebApiConfig.cs
diff --git a/sample/SkyApm.Sample.AspNet/Controllers/ValuesController.cs b/sample/SkyApm.Sample.AspNet/Controllers/ValuesController.cs
diff --git a/sample/SkyApm.Sample.AspNet/Global.asax b/sample/SkyApm.Sample.AspNet/Global.asax
diff --git a/sample/SkyApm.Sample.AspNet/Global.asax.cs b/sample/SkyApm.Sample.AspNet/Global.asax.cs
diff --git a/sample/SkyApm.Sample.AspNet/Properties/AssemblyInfo.cs b/sample/SkyApm.Sample.AspNet/Properties/AssemblyInfo.cs