diff --git a/.azure-pipelines/ci-build.yml b/.azure-pipelines/ci-build.yml
index 45d360f7..a73f960d 100644
--- a/.azure-pipelines/ci-build.yml
+++ b/.azure-pipelines/ci-build.yml
@@ -42,9 +42,9 @@ extends:
               version: 6.x
 
           - task: UseDotNet@2
-            displayName: 'Use .NET 8'
+            displayName: 'Use .NET 9'
             inputs:
-              version: 8.x
+              version: 9.x
           
           - task: PowerShell@2
             displayName: 'Enable signing'
@@ -84,7 +84,7 @@ extends:
             inputs:
               command: test
               projects: '$(Build.SourcesDirectory)\Microsoft.Kiota.sln'
-              arguments: '--configuration $(BuildConfiguration) --no-build --framework net8.0'
+              arguments: '--configuration $(BuildConfiguration) --no-build --framework net9.0'
 
           - task: EsrpCodeSigning@5
             displayName: 'ESRP DLL Strong Name'
diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml
index f9bf65fc..c9278be2 100644
--- a/.github/workflows/build-and-test.yml
+++ b/.github/workflows/build-and-test.yml
@@ -22,7 +22,7 @@ jobs:
       - name: Setup .NET
         uses: actions/setup-dotnet@v4
         with:
-          dotnet-version: 8.x
+          dotnet-version: 9.x
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v3
         with:
@@ -35,7 +35,7 @@ jobs:
         run: dotnet build ${{ env.solutionName }} --no-restore /p:UseSharedCompilation=false
       - name: Test for net462
         run: dotnet test ${{ env.solutionName }} --no-build --verbosity normal --framework net462
-      - name: Test for net8.0 and collect coverage
-        run: dotnet test ${{ env.solutionName }} --no-build --verbosity normal /p:CollectCoverage=true /p:CoverletOutput=TestResults/ /p:CoverletOutputFormat=opencover --framework net8.0
+      - name: Test for net9.0 and collect coverage
+        run: dotnet test ${{ env.solutionName }} --no-build --verbosity normal /p:CollectCoverage=true /p:CoverletOutput=TestResults/ /p:CoverletOutputFormat=opencover --framework net9.0
       - name: Perform CodeQL Analysis
         uses: github/codeql-action/analyze@v3
diff --git a/.github/workflows/sonarcloud.yml b/.github/workflows/sonarcloud.yml
index f11beac3..2ef3c749 100644
--- a/.github/workflows/sonarcloud.yml
+++ b/.github/workflows/sonarcloud.yml
@@ -43,7 +43,7 @@ jobs:
         with: # At the moment the scanner requires dotnet 5 https://www.nuget.org/packages/dotnet-sonarscanner
           dotnet-version: |
             5.x 
-            8.x
+            9.x
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0 # Shallow clones should be disabled for a better relevancy of analysis
@@ -62,8 +62,8 @@ jobs:
           CoverletOutputFormat: "opencover" # https://github.com/microsoft/vstest/issues/4014#issuecomment-1307913682
         shell: pwsh
         run: |
-          dotnet tool run dotnet-sonarscanner begin /k:"microsoft_kiota-abstractions-dotnet" /o:"microsoft" /d:sonar.token="${{ secrets.SONAR_TOKEN }}" /d:sonar.host.url="https://sonarcloud.io" /d:sonar.cs.opencover.reportsPaths="tests/abstractions/coverage.net8.0.opencover.xml,tests/authentication/azure/coverage.net8.0.opencover.xml,tests/http/httpClient/coverage.net8.0.opencover.xml,tests/serialization/json/coverage.net8.0.opencover.xml,tests/serialization/text/coverage.net8.0.opencover.xml,tests/serialization/form/coverage.net8.0.opencover.xml,tests/serialization/multipart/coverage.net8.0.opencover.xml,tests/bundle/coverage.net8.0.opencover.xml"
+          dotnet tool run dotnet-sonarscanner begin /k:"microsoft_kiota-abstractions-dotnet" /o:"microsoft" /d:sonar.token="${{ secrets.SONAR_TOKEN }}" /d:sonar.host.url="https://sonarcloud.io" /d:sonar.cs.opencover.reportsPaths="tests/abstractions/coverage.net9.0.opencover.xml,tests/authentication/azure/coverage.net9.0.opencover.xml,tests/http/httpClient/coverage.net9.0.opencover.xml,tests/serialization/json/coverage.net9.0.opencover.xml,tests/serialization/text/coverage.net9.0.opencover.xml,tests/serialization/form/coverage.net9.0.opencover.xml,tests/serialization/multipart/coverage.net9.0.opencover.xml,tests/bundle/coverage.net9.0.opencover.xml"
           dotnet workload restore
           dotnet build
-          dotnet test Microsoft.Kiota.sln --no-build --verbosity normal /p:CollectCoverage=true /p:CoverletOutputFormat=opencover --framework net8.0
+          dotnet test Microsoft.Kiota.sln --no-build --verbosity normal /p:CollectCoverage=true /p:CoverletOutputFormat=opencover --framework net9.0
           dotnet tool run dotnet-sonarscanner end /d:sonar.token="${{ secrets.SONAR_TOKEN }}"
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2f5f00d1..754e90a4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [1.15.0] - 2024-11-13
+
+### Added
+
+- Added support for `net9.0`.
+
 ## [1.14.0] - 2024-11-06
 
 ### Added
diff --git a/Directory.Build.props b/Directory.Build.props
index a0dfeef6..c3fc775a 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -1,7 +1,7 @@
 <Project>
   <!-- Common default project properties for ALL projects-->
   <PropertyGroup>
-    <VersionPrefix>1.14.0</VersionPrefix>
+    <VersionPrefix>1.15.0</VersionPrefix>
     <VersionSuffix></VersionSuffix>
     <!-- This is overidden in test projects by setting to true-->
     <IsTestProject>false</IsTestProject>
diff --git a/src/abstractions/Microsoft.Kiota.Abstractions.csproj b/src/abstractions/Microsoft.Kiota.Abstractions.csproj
index 7db14fc5..84eff2f3 100644
--- a/src/abstractions/Microsoft.Kiota.Abstractions.csproj
+++ b/src/abstractions/Microsoft.Kiota.Abstractions.csproj
@@ -19,6 +19,6 @@
 
   <!-- NET 5 target to be removed on next major version-->
   <ItemGroup Condition="'$(TargetFramework)' == 'net5.0' or '$(TargetFramework)'== 'netStandard2.0' or '$(TargetFramework)' == 'netStandard2.1'">
-      <PackageReference Include="System.Diagnostics.DiagnosticSource" Version="[6.0,9.0)" />
+      <PackageReference Include="System.Diagnostics.DiagnosticSource" Version="[6.0,10.0)" />
   </ItemGroup>
 </Project>
diff --git a/src/authentication/azure/Microsoft.Kiota.Authentication.Azure.csproj b/src/authentication/azure/Microsoft.Kiota.Authentication.Azure.csproj
index cde2cebd..8925ac3c 100644
--- a/src/authentication/azure/Microsoft.Kiota.Authentication.Azure.csproj
+++ b/src/authentication/azure/Microsoft.Kiota.Authentication.Azure.csproj
@@ -20,6 +20,6 @@
 
   <!-- NET 5 target to be removed on next major version-->
   <ItemGroup Condition="'$(TargetFramework)' == 'net5.0' or '$(TargetFramework)'== 'netStandard2.0' or '$(TargetFramework)' == 'netStandard2.1'">
-    <PackageReference Include="System.Diagnostics.DiagnosticSource" Version="[6.0.1,9.0)" />
+    <PackageReference Include="System.Diagnostics.DiagnosticSource" Version="[6.0.1,10.0)" />
   </ItemGroup>
 </Project>
diff --git a/src/http/httpClient/Microsoft.Kiota.Http.HttpClientLibrary.csproj b/src/http/httpClient/Microsoft.Kiota.Http.HttpClientLibrary.csproj
index 9de13f58..5f3543c2 100644
--- a/src/http/httpClient/Microsoft.Kiota.Http.HttpClientLibrary.csproj
+++ b/src/http/httpClient/Microsoft.Kiota.Http.HttpClientLibrary.csproj
@@ -15,11 +15,11 @@
     <!-- suppressed because of this CVE https://github.com/advisories/GHSA-hh2w-p6rv-4g7w 
      The target application is the one which will resolve the correct version
      when the version range is updated to > 8.0.4 in the future, remove the nowarn suppression -->
-    <PackageReference Include="System.Text.Json" Version="[6.0,9.0)" NoWarn="NU1903" />
+    <PackageReference Include="System.Text.Json" Version="[6.0,10.0)" NoWarn="NU1903" />
   </ItemGroup>
 
   <ItemGroup Condition="'$(TargetFramework)' == 'net462'">
-    <PackageReference Include="System.Net.Http.WinHttpHandler" Version="[6.0,9.0)" />
+    <PackageReference Include="System.Net.Http.WinHttpHandler" Version="[6.0,10.0)" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/src/serialization/json/Microsoft.Kiota.Serialization.Json.csproj b/src/serialization/json/Microsoft.Kiota.Serialization.Json.csproj
index 75a4983c..526f7d4c 100644
--- a/src/serialization/json/Microsoft.Kiota.Serialization.Json.csproj
+++ b/src/serialization/json/Microsoft.Kiota.Serialization.Json.csproj
@@ -16,7 +16,7 @@
     <!-- suppressed because of this CVE https://github.com/advisories/GHSA-hh2w-p6rv-4g7w
      The target application is the one which will resolve the correct version
      when the version range is updated to > 8.0.4 in the future, remove the nowarn suppression -->
-    <PackageReference Include="System.Text.Json" Version="[6.0,9.0)" NoWarn="NU1903" />
+    <PackageReference Include="System.Text.Json" Version="[6.0,10.0)" NoWarn="NU1903" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/tests/Directory.Build.props b/tests/Directory.Build.props
index 106042dc..efbf5188 100644
--- a/tests/Directory.Build.props
+++ b/tests/Directory.Build.props
@@ -1,7 +1,7 @@
 <Project>
 	<Import Project="$([MSBuild]::GetPathOfFileAbove('Directory.Build.props', '$(MSBuildThisFileDirectory)../'))" />
 	<PropertyGroup>
-		<TargetFrameworks>net8.0;net462</TargetFrameworks>
+		<TargetFrameworks>net9.0;net462</TargetFrameworks>
 		<IsTestProject>true</IsTestProject>
 		<ImplicitUsings>true</ImplicitUsings>
 		<LangVersion>latest</LangVersion>
diff --git a/tests/trimming/Microsoft.Kiota.Trimming.Validation/Microsoft.Kiota.Trimming.Validation.csproj b/tests/trimming/Microsoft.Kiota.Trimming.Validation/Microsoft.Kiota.Trimming.Validation.csproj
index 8d197b98..6eb852ff 100644
--- a/tests/trimming/Microsoft.Kiota.Trimming.Validation/Microsoft.Kiota.Trimming.Validation.csproj
+++ b/tests/trimming/Microsoft.Kiota.Trimming.Validation/Microsoft.Kiota.Trimming.Validation.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFrameworks>net6.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net6.0;net9.0</TargetFrameworks>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
@@ -10,7 +10,7 @@
     <IsPackable>false</IsPackable>
   </PropertyGroup>
   <PropertyGroup
-    Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net8.0'))">
+    Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net9.0'))">
     <PublishAot>true</PublishAot>
   </PropertyGroup>
   <PropertyGroup