microsoft · ceciliaavila · Mar 19, 2025 · Mar 20, 2025 · Mar 20, 2025 · Mar 21, 2025
diff --git a/Directory.Build.props b/Directory.Build.props
@@ -20,11 +20,15 @@
     <CodeAnalysisRuleSet>$(MSBuildThisFileDirectory)BotBuilder-DotNet.ruleset</CodeAnalysisRuleSet>
     <RunSettingsFilePath>$(MSBuildThisFileDirectory)\CodeCoverage.runsettings</RunSettingsFilePath>
   </PropertyGroup>
-  
+
   <ItemGroup>
     <PackageReference Include="StyleCop.Analyzers" Version="1.1.118" PrivateAssets="all" />
   </ItemGroup>
 
+  <ItemGroup>
+    <PackageReference Update="Microsoft.CodeAnalysis.NetAnalyzers" Version="9.0.0" PrivateAssets="all" />
+  </ItemGroup>
+
   <PropertyGroup>
     <Company>Microsoft</Company>
 

diff --git a/...lTests/Microsoft.Bot.Builder.FunctionalTests/Microsoft.Bot.Builder.FunctionalTests.csproj b/...lTests/Microsoft.Bot.Builder.FunctionalTests/Microsoft.Bot.Builder.FunctionalTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <IsPackable>false</IsPackable>
     <Configurations>Debug;Release;</Configurations>
   </PropertyGroup>

diff --git a/build/onebranch/ci-api-validation-steps.yml b/build/onebranch/ci-api-validation-steps.yml
@@ -2,7 +2,7 @@ steps:
 - task: DownloadPipelineArtifact@2
   displayName: 'Download BotBuilderDLLs from Artifacts'
   inputs:
-    artifactName: 'BotBuilderDLLs-Debug-Windows-net8'
+    artifactName: 'BotBuilderDLLs-Debug-Windows-net9'
     targetPath: '$(System.ArtifactsDirectory)/OutputDlls'
 
 - task: DownloadPipelineArtifact@2

diff --git a/build/onebranch/ci-test-steps.yml b/build/onebranch/ci-test-steps.yml
@@ -20,32 +20,32 @@ steps:
     customCommand: 'install -g @microsoft/botframework-cli@next'
 
 - task: UseDotNet@2
-  displayName: "Install .NET Core 6.0"
+  displayName: "Install .NET Core 8.0"
   continueOnError: true
   inputs:
     packageType: "sdk"
-    version: 6.x
-  condition: and(succeeded(), eq(variables['BuildConfiguration'],'Release-Windows'), eq(variables['BuildTarget'],'net6'))
+    version: 8.x
+  condition: and(succeeded(), eq(variables['BuildConfiguration'],'Release-Windows'), eq(variables['BuildTarget'],'net8'))
 
 - task: DotNetCoreCLI@2
-  displayName: 'dotnet test (release) 6.0'
+  displayName: 'dotnet test (release) 8.0'
   inputs:
     command: test
     projects: |
      Tests/**/*Tests.csproj
 
-    arguments: '-v n  -f net6.0 --configuration release --no-build --no-restore --filter "TestCategory!=IgnoreInAutomatedBuild&TestCategory!=FunctionalTests" --collect:"Code Coverage" --settings $(Build.SourcesDirectory)\CodeCoverage.runsettings'
-  condition: and(succeeded(), eq(variables['BuildConfiguration'],'Release-Windows'), eq(variables['BuildTarget'],'net6'))
+    arguments: '-v n  -f net8.0 --configuration release --no-build --no-restore --filter "TestCategory!=IgnoreInAutomatedBuild&TestCategory!=FunctionalTests" --collect:"Code Coverage" --settings $(Build.SourcesDirectory)\CodeCoverage.runsettings'
+  condition: and(succeeded(), eq(variables['BuildConfiguration'],'Release-Windows'), eq(variables['BuildTarget'],'net8'))
 
 - task: DotNetCoreCLI@2
-  displayName: 'dotnet test (release) 8.0'
+  displayName: 'dotnet test (release) 9.0'
   inputs:
     command: test
     projects: |
      Tests/**/*Tests.csproj
 
-    arguments: '-v n  -f net8.0 --configuration release --no-build --no-restore --filter "TestCategory!=IgnoreInAutomatedBuild&TestCategory!=FunctionalTests" --collect:"Code Coverage" --settings $(Build.SourcesDirectory)\CodeCoverage.runsettings'
-  condition: and(succeeded(), eq(variables['BuildConfiguration'],'Release-Windows'), eq(variables['BuildTarget'],'net8'))
+    arguments: '-v n  -f net9.0 --configuration release --no-build --no-restore --filter "TestCategory!=IgnoreInAutomatedBuild&TestCategory!=FunctionalTests" --collect:"Code Coverage" --settings $(Build.SourcesDirectory)\CodeCoverage.runsettings'
+  condition: and(succeeded(), eq(variables['BuildConfiguration'],'Release-Windows'), eq(variables['BuildTarget'],'net9'))
 
 - powershell: |
    # This task copies the code coverage file created by dotnet test into a well known location. In all

diff --git a/build/onebranch/pr.yml b/build/onebranch/pr.yml
@@ -42,34 +42,34 @@ variables:
 stages:
 - stage: Build
   jobs:
-  - job: Debug_Windows_Configuration_6
+  - job: Debug_Windows_Configuration_8
     variables:
       BuildConfiguration: Debug-Windows
-      BuildTarget: 'net6' # set the TargetFramework property for tests to use net6.0
+      BuildTarget: 'net8' # set the TargetFramework property for tests to use net8.0
     steps:
     - template: ci-build-steps.yml
     - template: ci-test-steps.yml
     - template: ci-component-detection-steps.yml
-  - job: Debug_Windows_Configuration_8
+  - job: Debug_Windows_Configuration_9
     variables:
       BuildConfiguration: Debug-Windows
-      BuildTarget: 'net8' # set the TargetFramework property for tests to use net8.0
+      BuildTarget: 'net9' # set the TargetFramework property for tests to use net9.0
     steps:
     - template: ci-build-steps.yml
     - template: ci-test-steps.yml
     - template: ci-component-detection-steps.yml
-  - job: Release_Windows_Configuration_6
+  - job: Release_Windows_Configuration_8
     variables:
       BuildConfiguration: Release-Windows
-      BuildTarget: 'net6' # set the TargetFramework property for tests to use net6.0
+      BuildTarget: 'net8' # set the TargetFramework property for tests to use net8.0
     steps:
     - template: ci-build-steps.yml
     - template: ci-test-steps.yml
     - template: ci-component-detection-steps.yml
-  - job: Release_Windows_Configuration_8
+  - job: Release_Windows_Configuration_9
     variables:
       BuildConfiguration: Release-Windows
-      BuildTarget: 'net8' # set the TargetFramework property for tests to use net8.0
+      BuildTarget: 'net9' # set the TargetFramework property for tests to use net9.0
       PublishCoverage: true
     steps:
     - template: ci-build-steps.yml

diff --git a/build/yaml/botbuilder-dotnet-ci-mac.yml b/build/yaml/botbuilder-dotnet-ci-mac.yml
@@ -19,14 +19,14 @@ variables:
 steps:
 # Note: Template ci-build-steps.yml is not supported in macOS because it calls VSBuild@1 in order to build the Windows-only ASP.NET Desktop assemblies.
 - task: UseDotNet@2
-  displayName: 'Use .Net sdk 6.0'
+  displayName: 'Use .Net sdk 8.0'
   inputs:
-    version: 6.0.x
+    version: 8.0.x
 
 - task: UseDotNet@2
-  displayName: 'Use .Net sdk 8.0'
+  displayName: 'Use .Net sdk 9.0'
   inputs:
-    version: 8.0.x
+    version: 9.0.x
 
 - powershell: 'gci env:* | sort-object name | Format-Table -AutoSize -Wrap'
   displayName: 'Display env vars'

diff --git a/build/yaml/botbuilder-dotnet-ci.yml b/build/yaml/botbuilder-dotnet-ci.yml
@@ -42,31 +42,31 @@ variables:
 stages:
 - stage: Build
   jobs:
-  - job: Debug_Windows_Configuration_6
+  - job: Debug_Windows_Configuration_8
     variables:
       BuildConfiguration: Debug-Windows
-      BuildTarget: 'net6' # set the TargetFramework property for tests to use net6.0
+      BuildTarget: 'net8' # set the TargetFramework property for tests to use net8.0
     steps:
     - template: ci-build-steps.yml
     - template: ci-test-steps.yml
-  - job: Debug_Windows_Configuration_8
+  - job: Debug_Windows_Configuration_9
     variables:
       BuildConfiguration: Debug-Windows
-      BuildTarget: 'net8' # set the TargetFramework property for tests to use net8.0
+      BuildTarget: 'net9' # set the TargetFramework property for tests to use net9.0
     steps:
     - template: ci-build-steps.yml
     - template: ci-test-steps.yml
-  - job: Release_Windows_Configuration_6
+  - job: Release_Windows_Configuration_8
     variables:
       BuildConfiguration: Release-Windows
-      BuildTarget: 'net6' # set the TargetFramework property for tests to use net6.0
+      BuildTarget: 'net8' # set the TargetFramework property for tests to use net8.0
     steps:
     - template: ci-build-steps.yml
     - template: ci-test-steps.yml
-  - job: Release_Windows_Configuration_8
+  - job: Release_Windows_Configuration_9
     variables:
       BuildConfiguration: Release-Windows
-      BuildTarget: 'net8' # set the TargetFramework property for tests to use net8.0
+      BuildTarget: 'net9' # set the TargetFramework property for tests to use net9.0
       PublishCoverage: true
     steps:
     - template: ci-build-steps.yml

diff --git a/build/yaml/ci-api-validation-steps.yml b/build/yaml/ci-api-validation-steps.yml
@@ -2,7 +2,7 @@ steps:
 - task: DownloadPipelineArtifact@2
   displayName: 'Download BotBuilderDLLs from Artifacts'
   inputs:
-    artifactName: 'BotBuilderDLLs-Debug-Windows-net8'
+    artifactName: 'BotBuilderDLLs-Debug-Windows-net9'
     targetPath: '$(System.ArtifactsDirectory)/OutputDlls'
 
 - task: DownloadPipelineArtifact@2

diff --git a/build/yaml/ci-test-steps.yml b/build/yaml/ci-test-steps.yml
@@ -20,32 +20,32 @@ steps:
     customCommand: 'install -g @microsoft/botframework-cli@next'
 
 - task: UseDotNet@2
-  displayName: "Install .NET Core 6.0"
+  displayName: "Install .NET Core 8.0"
   continueOnError: true
   inputs:
     packageType: "sdk"
-    version: 6.x
-  condition: and(succeeded(), eq(variables['BuildConfiguration'],'Release-Windows'), eq(variables['BuildTarget'],'net6'))
+    version: 8.x
+  condition: and(succeeded(), eq(variables['BuildConfiguration'],'Release-Windows'), eq(variables['BuildTarget'],'net8'))
 
 - task: DotNetCoreCLI@2
-  displayName: 'dotnet test (release) 6.0'
+  displayName: 'dotnet test (release) 8.0'
   inputs:
     command: test
     projects: |
      Tests/**/*Tests.csproj
 
-    arguments: '-v n  -f net6.0 --configuration release --no-build --no-restore --filter "TestCategory!=IgnoreInAutomatedBuild&TestCategory!=FunctionalTests" --collect:"Code Coverage" --settings $(Build.SourcesDirectory)\CodeCoverage.runsettings'
-  condition: and(succeeded(), eq(variables['BuildConfiguration'],'Release-Windows'), eq(variables['BuildTarget'],'net6'))
+    arguments: '-v n  -f net8.0 --configuration release --no-build --no-restore --filter "TestCategory!=IgnoreInAutomatedBuild&TestCategory!=FunctionalTests" --collect:"Code Coverage" --settings $(Build.SourcesDirectory)\CodeCoverage.runsettings'
+  condition: and(succeeded(), eq(variables['BuildConfiguration'],'Release-Windows'), eq(variables['BuildTarget'],'net8'))
 
 - task: DotNetCoreCLI@2
-  displayName: 'dotnet test (release) 8.0'
+  displayName: 'dotnet test (release) 9.0'
   inputs:
     command: test
     projects: |
      Tests/**/*Tests.csproj
 
-    arguments: '-v n  -f net8.0 --configuration release --no-build --no-restore --filter "TestCategory!=IgnoreInAutomatedBuild&TestCategory!=FunctionalTests" --collect:"Code Coverage" --settings $(Build.SourcesDirectory)\CodeCoverage.runsettings'
-  condition: and(succeeded(), eq(variables['BuildConfiguration'],'Release-Windows'), eq(variables['BuildTarget'],'net8'))
+    arguments: '-v n  -f net9.0 --configuration release --no-build --no-restore --filter "TestCategory!=IgnoreInAutomatedBuild&TestCategory!=FunctionalTests" --collect:"Code Coverage" --settings $(Build.SourcesDirectory)\CodeCoverage.runsettings'
+  condition: and(succeeded(), eq(variables['BuildConfiguration'],'Release-Windows'), eq(variables['BuildTarget'],'net9'))
 
 - powershell: |
    # This task copies the code coverage file created by dotnet test into a well known location. In all

diff --git a/build/yaml/functional-test-setup-steps.yml b/build/yaml/functional-test-setup-steps.yml
@@ -8,7 +8,7 @@ steps:
     command: publish
     publishWebProjects: false
     projects: '$(System.DefaultWorkingDirectory)\tests\Microsoft.Bot.Builder.TestBot\Microsoft.Bot.Builder.TestBot.csproj'
-    arguments: '-r linux-x64 --output $(System.DefaultWorkingDirectory)\tests\Microsoft.Bot.Builder.TestBot\PublishedBot --configuration $(TestConfiguration) --framework net8.0'
+    arguments: '-r linux-x64 --output $(System.DefaultWorkingDirectory)\tests\Microsoft.Bot.Builder.TestBot\PublishedBot --configuration $(TestConfiguration) --framework net9.0'
 
 - task: CopyFiles@2
   displayName: 'Copy root Directory.Build.props to staging'

diff --git a/...ries/Microsoft.Bot.AdaptiveExpressions.Core/Microsoft.Bot.AdaptiveExpressions.Core.csproj b/...ries/Microsoft.Bot.AdaptiveExpressions.Core/Microsoft.Bot.AdaptiveExpressions.Core.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;net6.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>netstandard2.0;net8.0;net9.0</TargetFrameworks>
     <Version Condition=" '$(ReleasePackageVersion)' == '' ">$(LocalPackageVersion)</Version>
     <Version Condition=" '$(ReleasePackageVersion)' != '' ">$(ReleasePackageVersion)</Version>
     <PackageVersion Condition=" '$(ReleasePackageVersion)' == '' ">$(LocalPackageVersion)</PackageVersion>

diff --git a/...ot.Builder.Dialogs.Adaptive.Runtime/Microsoft.Bot.Builder.Dialogs.Adaptive.Runtime.csproj b/...ot.Builder.Dialogs.Adaptive.Runtime/Microsoft.Bot.Builder.Dialogs.Adaptive.Runtime.csproj
@@ -10,7 +10,7 @@
   </PropertyGroup>
 
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;net6.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>netstandard2.0;net8.0;net9.0</TargetFrameworks>
     <PackageId>Microsoft.Bot.Builder.Dialogs.Adaptive.Runtime</PackageId>
     <Description>Library for building Adaptive Runtime bots using the Bot Framework SDK</Description>
     <Summary>Library for building Adaptive Runtime bots using the Bot Framework SDK</Summary>
@@ -22,11 +22,7 @@
     <DebugSymbols>true</DebugSymbols>
   </PropertyGroup>
 
-  <ItemGroup Condition="'$(TargetFramework)' == 'net6.0'">
-    <FrameworkReference Include="Microsoft.AspNetCore.App" />
-  </ItemGroup>
-
-  <ItemGroup Condition="'$(TargetFramework)' == 'net8.0'">
+  <ItemGroup Condition="'$(TargetFramework)' == 'net8.0' Or '$(TargetFramework)' == 'net9.0'">
     <FrameworkReference Include="Microsoft.AspNetCore.App" />
   </ItemGroup>
 

diff --git a/libraries/Microsoft.Bot.Streaming/Microsoft.Bot.Streaming.csproj b/libraries/Microsoft.Bot.Streaming/Microsoft.Bot.Streaming.csproj
@@ -11,7 +11,7 @@
   </PropertyGroup>
 
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;net6.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>netstandard2.0;net8.0;net9.0</TargetFrameworks>
     <PackageId>Microsoft.Bot.Streaming</PackageId>
     <Description>Streaming library for the Bot Framework SDK</Description>
     <Summary>Streaming library for the Bot Framework SDK</Summary>
@@ -30,11 +30,7 @@
     <PackageReference Include="Microsoft.Net.Http.Headers" Version="2.1.0" />
   </ItemGroup>
 
-  <ItemGroup Condition="'$(TargetFramework)' == 'net6.0'">
-    <FrameworkReference Include="Microsoft.AspNetCore.App" />
-  </ItemGroup>
-
-  <ItemGroup Condition="'$(TargetFramework)' == 'net8.0'">
+  <ItemGroup Condition="'$(TargetFramework)' == 'net8.0' Or '$(TargetFramework)' == 'net9.0'">
 	  <FrameworkReference Include="Microsoft.AspNetCore.App" />
   </ItemGroup>
 

diff --git a/...pplicationInsights.Core/Microsoft.Bot.Builder.Integration.ApplicationInsights.Core.csproj b/...pplicationInsights.Core/Microsoft.Bot.Builder.Integration.ApplicationInsights.Core.csproj
@@ -9,7 +9,7 @@
   </PropertyGroup>
 
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;net6.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>netstandard2.0;net8.0;net9.0</TargetFrameworks>
     <PackageId>Microsoft.Bot.Builder.Integration.ApplicationInsights.Core</PackageId>
     <Description>This library integrates the Microsoft Bot Builder SDK with Application Insights.</Description>
     <Summary>This library provides integration between the Microsoft Bot Builder SDK and Application Insights.</Summary>
@@ -20,15 +20,7 @@
     <DebugSymbols>true</DebugSymbols>
   </PropertyGroup>
 
-  <ItemGroup Condition="'$(TargetFramework)' == 'net6.0'">
-    <FrameworkReference Include="Microsoft.AspNetCore.App" />
-    <PackageReference Include="System.Drawing.Common" Version="8.0.7" />
-    <PackageReference Include="Microsoft.ApplicationInsights.AspNetCore" Version="2.22.0" />    
-    <!-- Force Microsoft.AspNetCore.Http to a safe version. -->
-    <PackageReference Include="Microsoft.AspNetCore.Http" Version="2.2.2" />
-  </ItemGroup>
-
-  <ItemGroup Condition="'$(TargetFramework)' == 'net8.0'">
+  <ItemGroup Condition="'$(TargetFramework)' == 'net8.0' Or '$(TargetFramework)' == 'net9.0'">
     <FrameworkReference Include="Microsoft.AspNetCore.App" />
     <PackageReference Include="System.Drawing.Common" Version="8.0.7" />
     <PackageReference Include="Microsoft.ApplicationInsights.AspNetCore" Version="2.22.0" />    

diff --git a/....Bot.Builder.Integration.AspNet.Core/Microsoft.Bot.Builder.Integration.AspNet.Core.csproj b/....Bot.Builder.Integration.AspNet.Core/Microsoft.Bot.Builder.Integration.AspNet.Core.csproj
@@ -9,7 +9,7 @@
   </PropertyGroup>
 
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;net6.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>netstandard2.0;net8.0;net9.0</TargetFrameworks>
     <Description>This library integrates the Microsoft Bot Builder SDK with ASP.NET Core. It offers idiomatic configuration APIs in addition to providing all the plumbing to direct incoming bot messages to a configured bot.</Description>
     <Summary>This library provides integration between the Microsoft Bot Builder SDK and ASP.NET Core.</Summary>
   </PropertyGroup>
@@ -19,11 +19,7 @@
     <DebugSymbols>true</DebugSymbols>
   </PropertyGroup>
 
-  <ItemGroup Condition="'$(TargetFramework)' == 'net6.0'">
-    <FrameworkReference Include="Microsoft.AspNetCore.App" />
-  </ItemGroup>
-
-  <ItemGroup Condition="'$(TargetFramework)' == 'net8.0'">
+  <ItemGroup Condition="'$(TargetFramework)' == 'net8.0' Or '$(TargetFramework)' == 'net9.0'">
     <FrameworkReference Include="Microsoft.AspNetCore.App" />
   </ItemGroup>
 

diff --git a/...ers.Facebook.PrimaryTestBot/Microsoft.Bot.Builder.Adapters.Facebook.PrimaryTestBot.csproj b/...ers.Facebook.PrimaryTestBot/Microsoft.Bot.Builder.Adapters.Facebook.PrimaryTestBot.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <UserSecretsId>594af4a1-e396-4609-8198-d665eb0c1f78</UserSecretsId>
   </PropertyGroup>
 

diff --git a/...Facebook.SecondaryTestBot/Microsoft.Bot.Builder.Adapters.Facebook.SecondaryTestBot.csproj b/...Facebook.SecondaryTestBot/Microsoft.Bot.Builder.Adapters.Facebook.SecondaryTestBot.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <UserSecretsId>dae2bae8-b3c8-4b83-8b3c-4022669c7a20</UserSecretsId>
   </PropertyGroup>
 

diff --git a/....Bot.Builder.Adapters.Facebook.Tests/Microsoft.Bot.Builder.Adapters.Facebook.Tests.csproj b/....Bot.Builder.Adapters.Facebook.Tests/Microsoft.Bot.Builder.Adapters.Facebook.Tests.csproj
@@ -1,9 +1,9 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework Condition="'$(BuildTarget)' == 'net6'">net6.0</TargetFramework>
     <TargetFramework Condition="'$(BuildTarget)' == 'net8'">net8.0</TargetFramework>
-    <TargetFrameworks Condition="'$(BuildTarget)' == ''">net6.0;net8.0</TargetFrameworks>
+    <TargetFramework Condition="'$(BuildTarget)' == 'net9'">net9.0</TargetFramework>
+    <TargetFrameworks Condition="'$(BuildTarget)' == ''">net8.0;net9.0</TargetFrameworks>
 
     <IsPackable>false</IsPackable>
 

diff --git a/...ft.Bot.Builder.Adapters.Slack.TestBot/Microsoft.Bot.Builder.Adapters.Slack.TestBot.csproj b/...ft.Bot.Builder.Adapters.Slack.TestBot/Microsoft.Bot.Builder.Adapters.Slack.TestBot.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <!-- The SlackAPI package isn't signed, so supress the warning. There seems to not be a way to supress this for ONLY SlackAPI. -->
     <NoWarn>$(NoWarn),CS8002</NoWarn>
     <UserSecretsId>3c783a33-e2a5-4acd-99dd-581d563d47e3</UserSecretsId>

diff --git a/...rosoft.Bot.Builder.Adapters.Slack.Tests/Microsoft.Bot.Builder.Adapters.Slack.Tests.csproj b/...rosoft.Bot.Builder.Adapters.Slack.Tests/Microsoft.Bot.Builder.Adapters.Slack.Tests.csproj
@@ -1,9 +1,9 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework Condition="'$(BuildTarget)' == 'net6'">net6.0</TargetFramework>
     <TargetFramework Condition="'$(BuildTarget)' == 'net8'">net8.0</TargetFramework>
-    <TargetFrameworks Condition="'$(BuildTarget)' == ''">net6.0;net8.0</TargetFrameworks>
+    <TargetFramework Condition="'$(BuildTarget)' == 'net9'">net9.0</TargetFramework>
+    <TargetFrameworks Condition="'$(BuildTarget)' == ''">net8.0;net9.0</TargetFrameworks>
     <IsPackable>false</IsPackable>
   </PropertyGroup>
 

diff --git a/....Bot.Builder.Adapters.Twilio.TestBot/Microsoft.Bot.Builder.Adapters.Twilio.TestBot.csproj b/....Bot.Builder.Adapters.Twilio.TestBot/Microsoft.Bot.Builder.Adapters.Twilio.TestBot.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net9.0</TargetFramework>
     <LangVersion>latest</LangVersion>
   </PropertyGroup>