open-telemetry · martincostello · Feb 14, 2026 · Feb 14, 2026 · Feb 14, 2026 · Feb 14, 2026
@@ -22,7 +22,7 @@ on:
         required: false
         type: string
       tfm-list:
-        default: '[ "net462", "net8.0", "net9.0", "net10.0" ]'
+        default: '[ "net462", "net10.0", "net11.0" ]'
         required: false
         type: string
       test-case-filter:

@@ -28,7 +28,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ windows-latest, ubuntu-24.04 ]
-        version: [ net462, net8.0, net10.0 ]
+        version: [ net462, net10.0, net11.0 ]
         exclude:
         - os: ubuntu-24.04
           version: net462

@@ -231,7 +231,7 @@ jobs:
     with:
       project-name: OpenTelemetry.Instrumentation.AspNetCore
       code-cov-name: Instrumentation.AspNetCore
-      tfm-list: '[ "net8.0", "net9.0", "net10.0" ]'
+      tfm-list: '[ "net10.0", "net11.0" ]'
 
   build-test-instrumentation-aws:
     needs: detect-changes
@@ -243,7 +243,7 @@ jobs:
     with:
       project-name: OpenTelemetry.Instrumentation.AWS
       code-cov-name: Instrumentation.AWS
-      tfm-list: '[ "net472", "net8.0", "net9.0", "net10.0" ]'
+      tfm-list: '[ "net472", "net10.0", "net11.0" ]'
 
   build-test-instrumentation-cassandra:
     needs: detect-changes
@@ -319,7 +319,7 @@ jobs:
     with:
       project-name: OpenTelemetry.Instrumentation.EventCounters
       code-cov-name: Instrumentation.EventCounters
-      tfm-list: '[ "net8.0", "net9.0", "net10.0" ]'
+      tfm-list: '[ "net10.0", "net11.0" ]'
 
   build-test-instrumentation-grpccore:
     needs: detect-changes

@@ -17,7 +17,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        version: [net8.0, net10.0]
+        version: [net10.0, net11.0]
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
@@ -32,7 +32,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        version: [net8.0, net10.0]
+        version: [net10.0, net11.0]
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 
@@ -47,7 +47,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        version: [net8.0, net10.0]
+        version: [net10.0, net11.0]
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
 

@@ -13,7 +13,7 @@ jobs:
       fail-fast: false # ensures the entire test matrix is run, even if one permutation fails
       matrix:
         os: [ ubuntu-24.04, windows-latest ]
-        version: [ net8.0, net9.0, net10.0 ]
+        version: [ net10.0, net11.0 ]
 
     runs-on: ${{ matrix.os }}
     steps:

@@ -44,8 +44,8 @@
   -->
   <ItemGroup Label="Production .NET packages">
     <PackageVersion Include="Microsoft.CodeAnalysis.PublicApiAnalyzers" Version="4.14.0" />
-    <PackageVersion Include="Microsoft.Extensions.Configuration" Version="[10.0.0,)" />
-    <PackageVersion Include="Microsoft.Extensions.Options" Version="[10.0.0,)" />
+    <PackageVersion Include="Microsoft.Extensions.Configuration" Version="[11.0.0-preview.2.26159.112,)" />
+    <PackageVersion Include="Microsoft.Extensions.Options" Version="[11.0.0-preview.2.26159.112,)" />
     <PackageVersion Include="Microsoft.Owin" Version="[4.2.2,)" />
     <PackageVersion Include="Microsoft.Win32.Registry" Version="[5.0.0,)" />
     <PackageVersion Include="System.Drawing.Common" Version="[4.7.2,)" />
@@ -56,21 +56,17 @@
     <PackageVersion Include="System.Security.Cryptography.Xml" Version="[4.7.1,)" />
     <PackageVersion Include="System.ServiceModel.Primitives" Version="[4.7.0,)" />
     <PackageVersion Include="System.Text.Encodings.Web" Version="[4.7.2,)" />
-    <PackageVersion Include="System.Text.Json" Version="[8.0.5,)" />
+    <PackageVersion Include="System.Text.Json" Version="[10.0.0,)" />
   </ItemGroup>
   <!-- Version overrides for specific netX.0 TFMs -->
-  <ItemGroup Condition="'$(TargetFramework)' == 'net8.0'">
-    <PackageVersion Update="Microsoft.Extensions.Configuration" Version="[8.0.0,)" />
-    <PackageVersion Update="Microsoft.Extensions.Options" Version="[8.0.0,)" />
-  </ItemGroup>
-  <ItemGroup Condition="'$(TargetFramework)' == 'net9.0'">
-    <PackageVersion Update="Microsoft.Extensions.Configuration" Version="[9.0.0,)" />
-    <PackageVersion Update="Microsoft.Extensions.Options" Version="[9.0.0,)" />
-  </ItemGroup>
   <ItemGroup Condition="'$(TargetFramework)' == 'net10.0'">
     <PackageVersion Update="Microsoft.Extensions.Configuration" Version="[10.0.0,)" />
     <PackageVersion Update="Microsoft.Extensions.Options" Version="[10.0.0,)" />
   </ItemGroup>
+  <ItemGroup Condition="'$(TargetFramework)' == 'net11.0'">
+    <PackageVersion Update="Microsoft.Extensions.Configuration" Version="[11.0.0-preview.2.26159.112,)" />
+    <PackageVersion Update="Microsoft.Extensions.Options" Version="[11.0.0-preview.2.26159.112,)" />
+  </ItemGroup>
 
   <ItemGroup Label="Production other packages">
     <PackageVersion Include="Amazon.Lambda.APIGatewayEvents" Version="[2.7.0,)" />
@@ -137,25 +133,24 @@
     <PackageVersion Include="Swashbuckle.AspNetCore" Version="10.1.7" />
     <PackageVersion Include="System.Reactive.Core" Version="6.1.0" />
     <PackageVersion Include="System.Reflection.DispatchProxy" Version="4.8.2" />
-    <!-- These WCF dependencies are pinned until we drop support for net8.0 and net9.0 -->
-    <PackageVersion Include="System.ServiceModel.Http" Version="[8.1.2,)" />
-    <PackageVersion Include="System.ServiceModel.NetTcp" Version="[8.1.2,)" />
+    <PackageVersion Include="System.ServiceModel.Http" Version="10.0.652802" />
+    <PackageVersion Include="System.ServiceModel.NetTcp" Version="10.0.652802" />
     <PackageVersion Include="Testcontainers.MsSql" Version="4.11.0" />
     <PackageVersion Include="Testcontainers.MySql" Version="4.11.0" />
     <PackageVersion Include="Testcontainers.PostgreSql" Version="4.11.0" />
     <PackageVersion Include="xunit" Version="2.9.3" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="[2.8.2,)" />
     <PackageVersion Include="Xunit.SkippableFact" Version="1.5.61" />
   </ItemGroup>
-  <ItemGroup Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net9.0'))" Label="Non-production packages, such as for examples and tests, for .NET 9">
-    <PackageVersion Update="Microsoft.AspNetCore.Mvc.Razor.RuntimeCompilation" Version="9.0.14" />
-    <PackageVersion Update="Microsoft.AspNetCore.Mvc.Testing" Version="9.0.14" />
-    <PackageVersion Update="Microsoft.AspNetCore.SignalR.Client" Version="9.0.14" />
-  </ItemGroup>
   <ItemGroup Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net10.0'))" Label="Non-production packages, such as for examples and tests, for .NET 10">
     <PackageVersion Update="Microsoft.AspNetCore.Mvc.Razor.RuntimeCompilation" Version="10.0.5" />
     <PackageVersion Update="Microsoft.AspNetCore.Mvc.Testing" Version="10.0.5" />
     <PackageVersion Update="Microsoft.AspNetCore.SignalR.Client" Version="10.0.5" />
   </ItemGroup>
+  <ItemGroup Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net11.0'))" Label="Non-production packages, such as for examples and tests, for .NET 11">
+    <PackageVersion Update="Microsoft.AspNetCore.Mvc.Razor.RuntimeCompilation" Version="11.0.0-preview.2.26159.112" />
+    <PackageVersion Update="Microsoft.AspNetCore.Mvc.Testing" Version="11.0.0-preview.2.26159.112" />
+    <PackageVersion Update="Microsoft.AspNetCore.SignalR.Client" Version="11.0.0-preview.2.26159.112" />
+  </ItemGroup>
 
 </Project>
@@ -21,7 +21,7 @@
 
   <PropertyGroup Label="Target frameworks used in by test projects">
     <!-- OmniSharp/VS Code requires TargetFrameworks to be in descending order for IntelliSense and analysis. -->
-    <SupportedNetTargets>net10.0;net9.0;net8.0</SupportedNetTargets>
+    <SupportedNetTargets>net11.0;net10.0</SupportedNetTargets>
   </PropertyGroup>
 
   <ItemGroup Condition="'$(IsTestProject)' == 'true'">

@@ -6,10 +6,10 @@
     <AssemblyOriginatorKeyFile>$(MSBuildThisFileDirectory)debug.snk</AssemblyOriginatorKeyFile>
     <EnforceCodeStyleInBuild>true</EnforceCodeStyleInBuild>
     <NetFrameworkMinimumSupportedVersion>net462</NetFrameworkMinimumSupportedVersion>
-    <NetMinimumSupportedVersion>net8.0</NetMinimumSupportedVersion>
+    <NetMinimumSupportedVersion>net10.0</NetMinimumSupportedVersion>
     <NetStandardMinimumSupportedVersion>netstandard2.0</NetStandardMinimumSupportedVersion>
     <!-- OmniSharp/VS Code requires TargetFrameworks to be in descending order for IntelliSense and analysis. -->
-    <TargetFrameworksForLibraries>net10.0;$(NetMinimumSupportedVersion);$(NetStandardMinimumSupportedVersion)</TargetFrameworksForLibraries>
+    <TargetFrameworksForLibraries>net11.0;$(NetMinimumSupportedVersion);$(NetStandardMinimumSupportedVersion)</TargetFrameworksForLibraries>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <AnalysisLevel>latest-all</AnalysisLevel>
     <Nullable>enable</Nullable>

@@ -6,4 +6,4 @@ services:
       args:
         PUBLISH_FRAMEWORK: net10.0
         TEST_SDK_VERSION: "10.0"
-        BUILD_SDK_VERSION: "10.0"
+        BUILD_SDK_VERSION: "11.0"
@@ -0,0 +1,9 @@
+version: '3.7'
+
+services:
+  tests:
+    build:
+      args:
+        PUBLISH_FRAMEWORK: net11.0
+        TEST_SDK_VERSION: "11.0"
+        BUILD_SDK_VERSION: "11.0"
@@ -39,23 +39,27 @@
     <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
       <dependentAssembly>
         <assemblyIdentity name="Microsoft.Bcl.AsyncInterfaces" culture="neutral" publicKeyToken="cc7b13ffcd2ddd51" />
-        <bindingRedirect oldVersion="0.0.0.0-10.0.0.0" newVersion="10.0.0.0" />
+        <bindingRedirect oldVersion="0.0.0.0-11.0.0.0" newVersion="11.0.0.0" />
       </dependentAssembly>
       <dependentAssembly>
         <assemblyIdentity name="Microsoft.Extensions.Configuration" culture="neutral" publicKeyToken="adb9793829ddae60" />
-        <bindingRedirect oldVersion="0.0.0.0-10.0.0.0" newVersion="10.0.0.0" />
+        <bindingRedirect oldVersion="0.0.0.0-11.0.0.0" newVersion="11.0.0.0" />
       </dependentAssembly>
       <dependentAssembly>
         <assemblyIdentity name="Microsoft.Extensions.Configuration.Abstractions" culture="neutral" publicKeyToken="adb9793829ddae60" />
-        <bindingRedirect oldVersion="0.0.0.0-10.0.0.0" newVersion="10.0.0.0" />
+        <bindingRedirect oldVersion="0.0.0.0-11.0.0.0" newVersion="11.0.0.0" />
       </dependentAssembly>
       <dependentAssembly>
         <assemblyIdentity name="Microsoft.Extensions.DependencyInjection.Abstractions" culture="neutral" publicKeyToken="adb9793829ddae60" />
-        <bindingRedirect oldVersion="0.0.0.0-10.0.0.0" newVersion="10.0.0.0" />
+        <bindingRedirect oldVersion="0.0.0.0-11.0.0.0" newVersion="11.0.0.0" />
       </dependentAssembly>
       <dependentAssembly>
         <assemblyIdentity name="Microsoft.Extensions.Options" culture="neutral" publicKeyToken="adb9793829ddae60" />
-        <bindingRedirect oldVersion="0.0.0.0-10.0.0.0" newVersion="10.0.0.0" />
+        <bindingRedirect oldVersion="0.0.0.0-11.0.0.0" newVersion="11.0.0.0" />
+      </dependentAssembly>
+      <dependentAssembly>
+        <assemblyIdentity name="Microsoft.Extensions.Primitives" culture="neutral" publicKeyToken="adb9793829ddae60" />
+        <bindingRedirect oldVersion="0.0.0.0-11.0.0.0" newVersion="11.0.0.0" />
       </dependentAssembly>
       <dependentAssembly>
         <assemblyIdentity name="Newtonsoft.Json" culture="neutral" publicKeyToken="30ad4fe6b2a6aeed" />

@@ -2,6 +2,6 @@
   "sdk": {
     "rollForward": "latestMajor",
     "allowPrerelease": false,
-    "version": "10.0.201"
+    "version": "11.0.100-preview.2.26159.112"
   }
 }
@@ -36,8 +36,7 @@
     <File Path="build/Common.targets" />
     <File Path="build/debug.snk" />
     <File Path="build/docker-compose.net10.0.yml" />
-    <File Path="build/docker-compose.net8.0.yml" />
-    <File Path="build/docker-compose.net9.0.yml" />
+    <File Path="build/docker-compose.net11.0.yml" />
     <File Path="build/opentelemetry-icon-color.png" />
     <File Path="build/OpenTelemetryContrib.prod.ruleset" />
     <File Path="build/OpenTelemetryContrib.test.ruleset" />

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Suppressions xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
+    <Suppression>
+        <DiagnosticId>CP0008</DiagnosticId>
+        <Target>T:OpenTelemetry.Exporter.Geneva.EventNameExportMode</Target>
+        <Left>lib/net8.0/OpenTelemetry.Exporter.Geneva.dll</Left>
+        <Right>lib/netstandard2.0/OpenTelemetry.Exporter.Geneva.dll</Right>
+        <IsBaselineSuppression>true</IsBaselineSuppression>
+    </Suppression>
+    <Suppression>
+        <DiagnosticId>CP0008</DiagnosticId>
+        <Target>T:OpenTelemetry.Exporter.Geneva.ExceptionStackExportMode</Target>
+        <Left>lib/net8.0/OpenTelemetry.Exporter.Geneva.dll</Left>
+        <Right>lib/netstandard2.0/OpenTelemetry.Exporter.Geneva.dll</Right>
+        <IsBaselineSuppression>true</IsBaselineSuppression>
+    </Suppression>
+</Suppressions>
@@ -41,7 +41,12 @@ public ConnectionStringBuilder([NotNull] string? connectionString)
 #else
             var index = token.IndexOf(EqualSign);
 #endif
+
+#if NET11_0_OR_GREATER
+            if (index == -1 || index != token.LastIndexOf(EqualSign, StringComparison.Ordinal))
+#else
             if (index == -1 || index != token.LastIndexOf(EqualSign))
+#endif
             {
                 continue;
             }

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Suppressions xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
+    <Suppression>
+        <DiagnosticId>CP0008</DiagnosticId>
+        <Target>T:OpenTelemetry.Exporter.OneCollector.OneCollectorExporterSerializationExceptionStackTraceHandlingType</Target>
+        <Left>lib/net8.0/OpenTelemetry.Exporter.OneCollector.dll</Left>
+        <Right>lib/netstandard2.1/OpenTelemetry.Exporter.OneCollector.dll</Right>
+        <IsBaselineSuppression>true</IsBaselineSuppression>
+    </Suppression>
+</Suppressions>
@@ -25,19 +25,14 @@
     <PackageReference Include="OpenTelemetry" />
   </ItemGroup>
 
-  <ItemGroup Condition="!$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net8.0'))">
+  <ItemGroup Condition="!$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net10.0'))">
     <PackageReference Include="System.Text.Json" VersionOverride="[6.0.10,)" />
   </ItemGroup>
 
   <ItemGroup>
     <Reference Include="System.Net.Http" Condition="'$([MSBuild]::GetTargetFrameworkIdentifier(`$(TargetFramework)`))' == '.NETFramework'" />
   </ItemGroup>
 
-  <!-- This package is explicitly upgraded for .NET 8 to fix native AoT compatibility issues -->
-  <ItemGroup Condition="'$(TargetFramework)' == 'net8.0'">
-    <PackageReference Include="Microsoft.Extensions.Configuration.Binder" VersionOverride="8.0.2" />
-  </ItemGroup>
-
   <ItemGroup>
     <Compile Include="$(RepoRoot)\src\Shared\ExceptionExtensions.cs" Link="Includes\ExceptionExtensions.cs" />
     <Compile Include="$(RepoRoot)\src\Shared\Guard.cs" Link="Includes\Guard.cs" />

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Suppressions xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
+    <Suppression>
+        <DiagnosticId>CP0002</DiagnosticId>
+        <Target>M:OpenTelemetry.Extensions.AWS.AWSXRayIdGenerator.ReplaceTraceId</Target>
+        <Left>lib/net8.0/OpenTelemetry.Extensions.AWS.dll</Left>
+        <Right>lib/netstandard2.0/OpenTelemetry.Extensions.AWS.dll</Right>
+        <IsBaselineSuppression>true</IsBaselineSuppression>
+    </Suppression>
+    <Suppression>
+        <DiagnosticId>CP0002</DiagnosticId>
+        <Target>M:OpenTelemetry.Extensions.AWS.AWSXRayIdGenerator.ReplaceTraceId(OpenTelemetry.Trace.Sampler)</Target>
+        <Left>lib/net8.0/OpenTelemetry.Extensions.AWS.dll</Left>
+        <Right>lib/netstandard2.0/OpenTelemetry.Extensions.AWS.dll</Right>
+        <IsBaselineSuppression>true</IsBaselineSuppression>
+    </Suppression>
+</Suppressions>
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Suppressions xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
+    <Suppression>
+        <DiagnosticId>CP0008</DiagnosticId>
+        <Target>T:OpenTelemetry.Instrumentation.AWS.SemanticConventionVersion</Target>
+        <Left>lib/net8.0/OpenTelemetry.Instrumentation.AWS.dll</Left>
+        <Right>lib/netstandard2.0/OpenTelemetry.Instrumentation.AWS.dll</Right>
+        <IsBaselineSuppression>true</IsBaselineSuppression>
+    </Suppression>
+</Suppressions>
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Suppressions xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
+    <Suppression>
+        <DiagnosticId>CP0008</DiagnosticId>
+        <Target>T:OpenTelemetry.Instrumentation.AWSLambda.SemanticConventionVersion</Target>
+        <Left>lib/net8.0/OpenTelemetry.Instrumentation.AWSLambda.dll</Left>
+        <Right>lib/netstandard2.0/OpenTelemetry.Instrumentation.AWSLambda.dll</Right>
+        <IsBaselineSuppression>true</IsBaselineSuppression>
+    </Suppression>
+</Suppressions>
@@ -106,7 +106,11 @@ internal static PropagationContext ExtractParentContext(SNSEvent.SNSMessage? mes
         var body = sqsMessage.Body;
         if (body != null &&
 #if NET
+#if NET11_0_OR_GREATER
+            body.TrimStart().StartsWith('{', StringComparison.Ordinal) &&
+#else
             body.TrimStart().StartsWith('{') &&
+#endif
             body.Contains(SnsMessageAttributes, StringComparison.Ordinal))
 #else
             body.TrimStart().StartsWith("{", StringComparison.Ordinal) &&

@@ -29,7 +29,7 @@
     <PackageReference Include="System.Text.Json" />
   </ItemGroup>
 
-  <ItemGroup Condition="!$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net8.0'))">
+  <ItemGroup Condition="!$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net10.0'))">
     <PackageReference Update="System.Text.Json" VersionOverride="[6.0.10,)" />
   </ItemGroup>
 

@@ -21,7 +21,6 @@ internal static class HttpContextExtensions
         var endpoint = GetOriginalEndpoint(context);
         var route = endpoint?.Metadata.GetMetadata<IRouteDiagnosticsMetadata>()?.Route;
 
-#if !NET11_0_OR_GREATER
         if (string.IsNullOrEmpty(route))
         {
             // For Razor Pages, the route template may be empty (e.g., for the Index page mapped to root "/").
@@ -32,7 +31,6 @@ internal static class HttpContextExtensions
                 return pageValue;
             }
         }
-#endif
 
         return route is not null ? ResolveHttpRoute(route) : null;
     }