diff --git a/.github/workflows/all_solutions.yml b/.github/workflows/all_solutions.yml
index edbf6d624..a6cd12ab0 100644
--- a/.github/workflows/all_solutions.yml
+++ b/.github/workflows/all_solutions.yml
@@ -79,12 +79,6 @@ jobs:
         with:
           fetch-depth: 0
 
-      - name: Setup .NET 9 Preview
-        uses: actions/setup-dotnet@3e891b0cb619bf60e2c25674b222b8940e2c1c25 # v4.1.0
-        with:
-          dotnet-version: '9.0.x'
-          dotnet-quality: 'preview'
-
       - name: Build FullAgent.sln
         run: |
           Write-Host "dotnet build --force --configuration Release -p:AllowUnsafeBlocks=true ${{ env.fullagent_solution_path }}"
@@ -175,12 +169,6 @@ jobs:
         with:
           vs-prerelease: true
 
-      - name: Setup .NET 9 Preview
-        uses: actions/setup-dotnet@3e891b0cb619bf60e2c25674b222b8940e2c1c25 # v4.1.0
-        with:
-          dotnet-version: '9.0.x'
-          dotnet-quality: 'preview'
-
       - name: List SDKS
         run: dotnet --list-sdks
         shell: powershell
@@ -223,12 +211,6 @@ jobs:
         with:
           vs-prerelease: true
 
-      - name: Setup .NET 9 Preview
-        uses: actions/setup-dotnet@3e891b0cb619bf60e2c25674b222b8940e2c1c25 # v4.1.0
-        with:
-          dotnet-version: '9.0.x'
-          dotnet-quality: 'preview'
-
       - name: Build UnboundedIntegrationTests.sln
         run: |
           Write-Host "List NuGet Sources"
@@ -394,12 +376,6 @@ jobs:
           choco install azure-functions-core-tools -y --params "'/x64'"
         shell: powershell
 
-      - name: Setup .NET 9 Preview
-        uses: actions/setup-dotnet@3e891b0cb619bf60e2c25674b222b8940e2c1c25 # v4.1.0
-        with:
-          dotnet-version: '9.0.x'
-          dotnet-quality: 'preview'
-
       - name: Run Integration Tests
         run: |
           if ($Env:enhanced_logging -eq $True) {
@@ -544,12 +520,6 @@ jobs:
 #          Start-CosmosDbEmulator
 #        shell: pwsh
 
-      - name: Setup .NET 9 Preview
-        uses: actions/setup-dotnet@3e891b0cb619bf60e2c25674b222b8940e2c1c25 # v4.1.0
-        with:
-          dotnet-version: '9.0.x'
-          dotnet-quality: 'preview'
-
       - name: Run Unbounded Integration Tests
         run: |
           if ($Env:enhanced_logging -eq $True) {
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 7152e5bf2..9a1601b2d 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -56,12 +56,6 @@ jobs:
       with:
         languages: csharp
 
-    - name: Setup .NET 9 Preview
-      uses: actions/setup-dotnet@3e891b0cb619bf60e2c25674b222b8940e2c1c25 # v4.1.0
-      with:
-        dotnet-version: '9.0.x'
-        dotnet-quality: 'preview'
-
     - name: Build .NET Agent Solution
       run: |
         dotnet build ${{ env.fullagent_solution_path }}
diff --git a/.github/workflows/run_linux_container_tests.yml b/.github/workflows/run_linux_container_tests.yml
index cbee87582..3c41db5ad 100644
--- a/.github/workflows/run_linux_container_tests.yml
+++ b/.github/workflows/run_linux_container_tests.yml
@@ -76,12 +76,11 @@ jobs:
           INTEGRATION_TEST_SECRETS: ${{ secrets.TEST_SECRETS }}
         run: |
           echo $INTEGRATION_TEST_SECRETS | dotnet user-secrets set --project ${{ env.integration_tests_shared_project }}
-  
-      - name: Setup .NET 9 Preview
-        uses: actions/setup-dotnet@3e891b0cb619bf60e2c25674b222b8940e2c1c25 # v4.1.0
+
+      - name: Install .NET 9
+        uses: actions/setup-dotnet@6bd8b7f7774af54e05809fcc5431931b3eb1ddee # v4.0.1
         with:
           dotnet-version: '9.0.x'
-          dotnet-quality: 'preview'
-
+  
       - name: Build & Run Linux Container Integration Tests
         run: dotnet test ./tests/Agent/IntegrationTests/ContainerIntegrationTests/ContainerIntegrationTests.csproj --framework net9.0
diff --git a/.github/workflows/run_unit_tests.yml b/.github/workflows/run_unit_tests.yml
index 3ec511271..46d2b9a9a 100644
--- a/.github/workflows/run_unit_tests.yml
+++ b/.github/workflows/run_unit_tests.yml
@@ -47,12 +47,6 @@ jobs:
         with:
           fetch-depth: 0
 
-      - name: Setup .NET 9 Preview
-        uses: actions/setup-dotnet@3e891b0cb619bf60e2c25674b222b8940e2c1c25 # v4.1.0
-        with:
-          dotnet-version: '9.0.x'
-          dotnet-quality: 'preview'
-
       - name: Restore NuGet Packages
         run: dotnet restore
 
diff --git a/Directory.Build.targets b/Directory.Build.targets
index 55cf2f2b5..c409f045d 100644
--- a/Directory.Build.targets
+++ b/Directory.Build.targets
@@ -1,27 +1,3 @@
 <Project>
   <Import Project="$(MSBuildThisFileDirectory)\build\Versioning.targets" Condition="Exists('$(MSBuildThisFileDirectory)\build\Versioning.targets')" />
-  <!-- BEGIN workaround for https://github.com/dotnet/sdk/issues/43339; remove after updated to VS 17.12 or a future 17.11 patch -->
-  <Target Name="WorkaroundDotnetSdk43339" BeforeTargets="ResolvePackageAssets" Condition=" '$(MSBuildRuntimeType)' == 'Full' and $([MSBuild]::VersionLessThan($(MSBuildVersion), 17.12.0))">
-    <PrimeSystemTextJson804 />
-  </Target>
-  <UsingTask
-    TaskName="PrimeSystemTextJson804"
-    TaskFactory="RoslynCodeTaskFactory"
-    AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.Core.dll" >
-    <Task>
-      <Code Type="Fragment" Language="cs">
-<![CDATA[
-try
-{
-    System.Reflection.Assembly.LoadFrom(@"$(MicrosoftNETBuildTasksDirectoryRoot)\..\..\..\DotnetTools\dotnet-format\BuildHost-net472\System.Text.Json.dll");
-}
-catch
-{
-    // Best effort: if something moves in the SDK don't break the build.
-}
-]]>
-      </Code>
-    </Task>
-  </UsingTask>
-  <!-- END workaround for https://github.com/dotnet/sdk/issues/43339 -->
 </Project>
diff --git a/tests/Agent/IntegrationTests/ContainerIntegrationTests/Tests/LinuxContainerTests.cs b/tests/Agent/IntegrationTests/ContainerIntegrationTests/Tests/LinuxContainerTests.cs
index ed240919f..0ea0a0bfd 100644
--- a/tests/Agent/IntegrationTests/ContainerIntegrationTests/Tests/LinuxContainerTests.cs
+++ b/tests/Agent/IntegrationTests/ContainerIntegrationTests/Tests/LinuxContainerTests.cs
@@ -82,22 +82,21 @@ public UbuntuArm64ContainerTest(UbuntuArm64ContainerTestFixture fixture, ITestOu
     }
 }
 
-// Temporarily disabled until Centos updates their package repos to include .NET 9 GA
-//public class CentosX64ContainerTest : LinuxContainerTest<CentosX64ContainerTestFixture>
+public class CentosX64ContainerTest : LinuxContainerTest<CentosX64ContainerTestFixture>
+{
+    public CentosX64ContainerTest(CentosX64ContainerTestFixture fixture, ITestOutputHelper output) : base(fixture, output)
+    {
+    }
+}
+
+// temporarily disabled until QEMU issue is resolved
+//public class CentosArm64ContainerTest : LinuxContainerTest<CentosArm64ContainerTestFixture>
 //{
-//    public CentosX64ContainerTest(CentosX64ContainerTestFixture fixture, ITestOutputHelper output) : base(fixture, output)
+//    public CentosArm64ContainerTest(CentosArm64ContainerTestFixture fixture, ITestOutputHelper output) : base(fixture, output)
 //    {
 //    }
 //}
 
-// temporarily disabled until the checksum issue is resolved
-// public class CentosArm64ContainerTest : LinuxContainerTest<CentosArm64ContainerTestFixture>
-// {
-//     public CentosArm64ContainerTest(CentosArm64ContainerTestFixture fixture, ITestOutputHelper output) : base(fixture, output)
-//     {
-//     }
-// }
-
 public class AmazonX64ContainerTest : LinuxContainerTest<AmazonX64ContainerTestFixture>
 {
     public AmazonX64ContainerTest(AmazonX64ContainerTestFixture fixture, ITestOutputHelper output) : base(fixture, output)