diff --git a/.github/workflows/Codecov.yml b/.github/workflows/Codecov.yml
index 3bb263b..359e4f2 100644
--- a/.github/workflows/Codecov.yml
+++ b/.github/workflows/Codecov.yml
@@ -95,9 +95,12 @@ jobs:
       - name: setting dotnet version
         uses: actions/setup-dotnet@v1
         with:
-          dotnet-version: |
-            10.0.x
-            8.0.x
+          dotnet-version: |            
+            6.x
+            7.x
+            8.x
+            9.x
+            10.x            
 
           include-prerelease: true
 
diff --git a/.github/workflows/pr_run_test_ci.yml b/.github/workflows/pr_run_test_ci.yml
index 3f5cce1..e15ad7a 100644
--- a/.github/workflows/pr_run_test_ci.yml
+++ b/.github/workflows/pr_run_test_ci.yml
@@ -38,8 +38,11 @@ jobs:
         uses: actions/setup-dotnet@v1
         with:
           dotnet-version: |
-            10.0.x
-            8.0.x
+            6.x
+            7.x
+            8.x
+            9.x
+            10.x            
 
           include-prerelease: true
 
diff --git a/Directory.Build.props b/Directory.Build.props
index b7c2d83..eadcf39 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -1,16 +1,28 @@
 <Project>
 	<PropertyGroup>
-		<TargetFrameworks>net8.0;net10.0</TargetFrameworks>
+		<TargetFrameworks>net6.0;net7.0;net8.0;net9.0;net10.0</TargetFrameworks>
+		<MicrosoftPackageVersion Condition="'$(TargetFramework)' == 'net6.0'">6.*</MicrosoftPackageVersion>
+		<MicrosoftPackageVersion Condition="'$(TargetFramework)' == 'net7.0'">7.*</MicrosoftPackageVersion>
 		<MicrosoftPackageVersion Condition="'$(TargetFramework)' == 'net8.0'">8.*</MicrosoftPackageVersion>
+		<MicrosoftPackageVersion Condition="'$(TargetFramework)' == 'net9.0'">9.*</MicrosoftPackageVersion>
 		<MicrosoftPackageVersion Condition="'$(TargetFramework)' == 'net10.0'">10.*</MicrosoftPackageVersion>
 
+		<MSTestPackageVersion Condition="'$(TargetFramework)' == 'net6.0'">3.8.2</MSTestPackageVersion>
+		<MSTestPackageVersion Condition="'$(TargetFramework)' == 'net7.0'">3.8.2</MSTestPackageVersion>
 		<MSTestPackageVersion Condition="'$(TargetFramework)' == 'net8.0'">4.2.3</MSTestPackageVersion>
+		<MSTestPackageVersion Condition="'$(TargetFramework)' == 'net9.0'">4.2.3</MSTestPackageVersion>
 		<MSTestPackageVersion Condition="'$(TargetFramework)' == 'net10.0'">4.2.3</MSTestPackageVersion>
 
+		<MicrosoftTeskSdkPackageVersion Condition="'$(TargetFramework)' == 'net6.0'">17.13.0</MicrosoftTeskSdkPackageVersion>
+		<MicrosoftTeskSdkPackageVersion Condition="'$(TargetFramework)' == 'net7.0'">17.13.0</MicrosoftTeskSdkPackageVersion>
 		<MicrosoftTeskSdkPackageVersion Condition="'$(TargetFramework)' == 'net8.0'">18.5.1</MicrosoftTeskSdkPackageVersion>
+		<MicrosoftTeskSdkPackageVersion Condition="'$(TargetFramework)' == 'net9.0'">18.5.1</MicrosoftTeskSdkPackageVersion>
 		<MicrosoftTeskSdkPackageVersion Condition="'$(TargetFramework)' == 'net10.0'">18.5.1</MicrosoftTeskSdkPackageVersion>
 
+		<CoverletPackageVersion Condition="'$(TargetFramework)' == 'net6.0'">6.0.4</CoverletPackageVersion>
+		<CoverletPackageVersion Condition="'$(TargetFramework)' == 'net7.0'">6.0.4</CoverletPackageVersion>
 		<CoverletPackageVersion Condition="'$(TargetFramework)' == 'net8.0'">10.0.1</CoverletPackageVersion>
+		<CoverletPackageVersion Condition="'$(TargetFramework)' == 'net9.0'">10.0.1</CoverletPackageVersion>
 		<CoverletPackageVersion Condition="'$(TargetFramework)' == 'net10.0'">10.0.1</CoverletPackageVersion>
 
 		<MasaFrameworkPackageVersion>1.2.0-preview.*</MasaFrameworkPackageVersion>