json-api-dotnet · bkoelman · Feb 21, 2026 · Feb 20, 2026 · Sep 4, 2026 · Sep 16, 2026
diff --git a/.config/dotnet-tools.json b/.config/dotnet-tools.json
@@ -3,7 +3,7 @@
   "isRoot": true,
   "tools": {
     "jetbrains.resharper.globaltools": {
-      "version": "2026.2.2",
+      "version": "2026.3.0-eap02",
       "commands": [
         "jb"
       ],

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
@@ -52,6 +52,11 @@ jobs:
           8.0.*
           9.0.*
           10.0.*
+    - name: Setup .NET 11 Preview
+      uses: actions/setup-dotnet@v5
+      with:
+        dotnet-version: 11.0.*
+        dotnet-quality: preview
     - name: Show installed versions
       shell: pwsh
       run: |
@@ -161,6 +166,11 @@ jobs:
           8.0.*
           9.0.*
           10.0.*
+    - name: Setup .NET 11 Preview
+      uses: actions/setup-dotnet@v5
+      with:
+        dotnet-version: 11.0.*
+        dotnet-quality: preview
     - name: Git checkout
       uses: actions/checkout@v7
       with:
@@ -219,6 +229,11 @@ jobs:
           8.0.*
           9.0.*
           10.0.*
+    - name: Setup .NET 11 Preview
+      uses: actions/setup-dotnet@v5
+      with:
+        dotnet-version: 11.0.*
+        dotnet-quality: preview
     - name: Git checkout
       uses: actions/checkout@v7
       with:

diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
@@ -33,6 +33,11 @@ jobs:
           8.0.*
           9.0.*
           10.0.*
+    - name: Setup .NET 11 Preview
+      uses: actions/setup-dotnet@v5
+      with:
+        dotnet-version: 11.0.*
+        dotnet-quality: preview
     - name: Git checkout
       uses: actions/checkout@v7
       with:

diff --git a/.github/workflows/qodana.yml b/.github/workflows/qodana.yml
@@ -30,6 +30,11 @@ jobs:
           8.0.*
           9.0.*
           10.0.*
+    - name: Setup .NET 11 Preview
+      uses: actions/setup-dotnet@v5
+      with:
+        dotnet-version: 11.0.*
+        dotnet-quality: preview
     - name: Git checkout
       uses: actions/checkout@v7
       with:

diff --git a/Directory.Build.props b/Directory.Build.props
@@ -13,6 +13,14 @@
     <VersionSuffix>pre</VersionSuffix>
   </PropertyGroup>
 
+  <PropertyGroup>
+    <!-- .NET 11 Preview -->
+    <SuppressNETCoreSdkPreviewMessage>true</SuppressNETCoreSdkPreviewMessage>
+
+    <!-- NU1608: Detected package version outside of dependency constraint (not all EF Core providers already offer preview 7 packages) -->
+    <NoWarn>$(NoWarn);NU1608</NoWarn>
+  </PropertyGroup>
+
   <PropertyGroup>
     <!--
       Disabled IDE analyzers for "Use collection expression" because they are dangerous in a subtle way.

diff --git a/benchmarks/Benchmarks.csproj b/benchmarks/Benchmarks.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net10.0</TargetFramework>
+    <TargetFramework>net11.0</TargetFramework>
     <ServerGarbageCollection>true</ServerGarbageCollection>
   </PropertyGroup>
 

diff --git a/nuget.config b/nuget.config
@@ -3,10 +3,6 @@
   <packageSources>
     <clear />
     <add key="nuget.org" value="https://api.nuget.org/v3/index.json" />
+    <add key="dotnet11" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet11/nuget/v3/index.json" />
   </packageSources>
-  <packageSourceMapping>
-    <packageSource key="nuget.org">
-      <package pattern="*" />
-    </packageSource>
-  </packageSourceMapping>
 </configuration>
diff --git a/package-versions.props b/package-versions.props
@@ -22,13 +22,24 @@
     <XunitVisualStudioVersion>4.0.*</XunitVisualStudioVersion>
   </PropertyGroup>
 
+  <PropertyGroup Condition="'$(TargetFramework)' == 'net11.0'">
+    <!-- Published dependencies (only update on major version change) -->
+    <EntityFrameworkCoreFrozenVersion>11.0.*-*</EntityFrameworkCoreFrozenVersion>
+
+    <!-- Non-published dependencies (these are safe to update, won't cause a breaking change) -->
+    <AspNetCoreVersion>11.0.*-*</AspNetCoreVersion>
+    <EntityFrameworkCoreVersion>11.0.*-*</EntityFrameworkCoreVersion>
+    <EntityFrameworkCoreMySqlVersion>10.0.*</EntityFrameworkCoreMySqlVersion>
+  </PropertyGroup>
+
   <PropertyGroup Condition="'$(TargetFramework)' == 'net10.0'">
     <!-- Published dependencies (only update on major version change) -->
     <EntityFrameworkCoreFrozenVersion>10.0.0</EntityFrameworkCoreFrozenVersion>
 
     <!-- Non-published dependencies (these are safe to update, won't cause a breaking change) -->
     <AspNetCoreVersion>10.0.*</AspNetCoreVersion>
     <EntityFrameworkCoreVersion>10.0.*-*</EntityFrameworkCoreVersion>
+    <EntityFrameworkCoreMySqlVersion>$(EntityFrameworkCoreVersion)</EntityFrameworkCoreMySqlVersion>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(TargetFramework)' == 'net9.0'">
@@ -38,6 +49,7 @@
     <!-- Non-published dependencies (these are safe to update, won't cause a breaking change) -->
     <AspNetCoreVersion>9.0.*</AspNetCoreVersion>
     <EntityFrameworkCoreVersion>9.0.*</EntityFrameworkCoreVersion>
+    <EntityFrameworkCoreMySqlVersion>$(EntityFrameworkCoreVersion)</EntityFrameworkCoreMySqlVersion>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(TargetFramework)' == 'net8.0'">
@@ -47,5 +59,6 @@
     <!-- Non-published dependencies (these are safe to update, won't cause a breaking change) -->
     <AspNetCoreVersion>8.0.*</AspNetCoreVersion>
     <EntityFrameworkCoreVersion>8.0.*</EntityFrameworkCoreVersion>
+    <EntityFrameworkCoreMySqlVersion>$(EntityFrameworkCoreVersion)</EntityFrameworkCoreMySqlVersion>
   </PropertyGroup>
 </Project>
diff --git a/src/Examples/DapperExample/DapperExample.csproj b/src/Examples/DapperExample/DapperExample.csproj
@@ -1,6 +1,6 @@
-<Project Sdk="Microsoft.NET.Sdk.Web">
+<Project Sdk="Microsoft.NET.Sdk.Web">
   <PropertyGroup>
-    <TargetFrameworks>net10.0;net9.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net11.0;net10.0;net9.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <Import Project="..\..\..\package-versions.props" />
@@ -15,7 +15,7 @@
     <PackageReference Include="Dapper" Version="$(DapperVersion)" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Relational" Version="$(EntityFrameworkCoreVersion)" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="$(EntityFrameworkCoreVersion)" />
-    <PackageReference Include="Microting.EntityFrameworkCore.MySql" Condition="'$(TargetFramework)' != 'net9.0' And '$(TargetFramework)' != 'net8.0'" Version="$(EntityFrameworkCoreVersion)" />
+    <PackageReference Include="Microting.EntityFrameworkCore.MySql" Condition="'$(TargetFramework)' != 'net9.0' And '$(TargetFramework)' != 'net8.0'" Version="$(EntityFrameworkCoreMySqlVersion)" />
     <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="$(EntityFrameworkCoreVersion)" />
     <PackageReference Include="Pomelo.EntityFrameworkCore.MySql" Condition="'$(TargetFramework)' == 'net9.0' Or '$(TargetFramework)' == 'net8.0'" Version="$(EntityFrameworkCoreVersion)" />
   </ItemGroup>

diff --git a/src/Examples/DatabasePerTenantExample/DatabasePerTenantExample.csproj b/src/Examples/DatabasePerTenantExample/DatabasePerTenantExample.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
   <PropertyGroup>
-    <TargetFrameworks>net10.0;net9.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net11.0;net10.0;net9.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <Import Project="..\..\..\package-versions.props" />

diff --git a/src/Examples/GettingStarted/GettingStarted.csproj b/src/Examples/GettingStarted/GettingStarted.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
   <PropertyGroup>
-    <TargetFrameworks>net10.0;net9.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net11.0;net10.0;net9.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <Import Project="..\..\..\package-versions.props" />

diff --git a/src/Examples/JsonApiDotNetCoreExample/JsonApiDotNetCoreExample.csproj b/src/Examples/JsonApiDotNetCoreExample/JsonApiDotNetCoreExample.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
   <PropertyGroup>
-    <TargetFrameworks>net10.0;net9.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net11.0;net10.0;net9.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <Import Project="..\..\..\package-versions.props" />

diff --git a/src/Examples/MultiDbContextExample/MultiDbContextExample.csproj b/src/Examples/MultiDbContextExample/MultiDbContextExample.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
   <PropertyGroup>
-    <TargetFrameworks>net10.0;net9.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net11.0;net10.0;net9.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <Import Project="..\..\..\package-versions.props" />

diff --git a/src/Examples/NoEntityFrameworkExample/NoEntityFrameworkExample.csproj b/src/Examples/NoEntityFrameworkExample/NoEntityFrameworkExample.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
   <PropertyGroup>
-    <TargetFrameworks>net10.0;net9.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net11.0;net10.0;net9.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <Import Project="..\..\..\package-versions.props" />

diff --git a/src/Examples/ReportsExample/ReportsExample.csproj b/src/Examples/ReportsExample/ReportsExample.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
   <PropertyGroup>
-    <TargetFrameworks>net10.0;net9.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net11.0;net10.0;net9.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <Import Project="..\..\..\package-versions.props" />

diff --git a/src/JsonApiDotNetCore.Annotations/JsonApiDotNetCore.Annotations.csproj b/src/JsonApiDotNetCore.Annotations/JsonApiDotNetCore.Annotations.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>net10.0;net8.0;netstandard1.0</TargetFrameworks>
+    <TargetFrameworks>net11.0;net10.0;net8.0;netstandard1.0</TargetFrameworks>
     <IsPackable>true</IsPackable>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
     <RootNamespace>JsonApiDotNetCore</RootNamespace>

diff --git a/src/JsonApiDotNetCore/JsonApiDotNetCore.csproj b/src/JsonApiDotNetCore/JsonApiDotNetCore.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>net10.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net11.0;net10.0;net8.0</TargetFrameworks>
     <IsPackable>true</IsPackable>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
   </PropertyGroup>

diff --git a/test/AnnotationTests/AnnotationTests.csproj b/test/AnnotationTests/AnnotationTests.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>net10.0;net9.0;net8.0;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>net11.0;net10.0;net9.0;net8.0;netstandard2.0</TargetFrameworks>
   </PropertyGroup>
 
   <Import Project="..\..\package-versions.props" />

diff --git a/test/DapperTests/DapperTests.csproj b/test/DapperTests/DapperTests.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>net10.0;net9.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net11.0;net10.0;net9.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <Import Project="..\..\package-versions.props" />

diff --git a/test/DiscoveryTests/DiscoveryTests.csproj b/test/DiscoveryTests/DiscoveryTests.csproj
@@ -1,6 +1,6 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>net10.0;net9.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net11.0;net10.0;net9.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <Import Project="..\..\package-versions.props" />

diff --git a/test/DiscoveryTests/ServiceDiscoveryFacadeTests.cs b/test/DiscoveryTests/ServiceDiscoveryFacadeTests.cs
@@ -124,6 +124,13 @@ public override DbContextOptions WithExtension<TExtension>(TExtension extension)
             {
                 return this;
             }
+
+#if NET11_0_OR_GREATER
+            public override DbContextOptions WithoutExtension<TExtension>()
+            {
+                return this;
+            }
+#endif
         }
     }
 }
diff --git a/test/JsonApiDotNetCoreTests/IntegrationTests/AttributeTypes/AttributeTypeWriteTests.cs b/test/JsonApiDotNetCoreTests/IntegrationTests/AttributeTypes/AttributeTypeWriteTests.cs
@@ -532,8 +532,8 @@ await _testContext.RunOnDatabaseAsync(async dbContext =>
     [InlineData(nameof(TypeContainer.TestNullableIPAddress), "An invalid IP address was specified.")]
     [InlineData(nameof(TypeContainer.TestIPNetwork), "An invalid IP network was specified.")]
     [InlineData(nameof(TypeContainer.TestNullableIPNetwork), "An invalid IP network was specified.")]
-    [InlineData(nameof(TypeContainer.TestVersion), $"{ErrorPrefixJsonSupport}Version format.")]
-    [InlineData(nameof(TypeContainer.TestNullableVersion), $"{ErrorPrefixJsonSupport}Version format.")]
+    [InlineData(nameof(TypeContainer.TestVersion), $"{ErrorPrefixJsonConvert}System.Version.")]
+    [InlineData(nameof(TypeContainer.TestNullableVersion), $"{ErrorPrefixJsonConvert}System.Version.")]
     public async Task Cannot_update_resource_with_attribute_set_to_invalid_value(string propertyName, string innerParseError)
     {
         // Arrange

diff --git a/test/JsonApiDotNetCoreTests/IntegrationTests/Endpoints/MinimalApis/MinimalApiTests.cs b/test/JsonApiDotNetCoreTests/IntegrationTests/Endpoints/MinimalApis/MinimalApiTests.cs
@@ -1,5 +1,4 @@
 using System.Net;
-using System.Net.Http.Json;
 using FluentAssertions;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.AspNetCore.Mvc;

diff --git a/test/JsonApiDotNetCoreTests/JsonApiDotNetCoreTests.csproj b/test/JsonApiDotNetCoreTests/JsonApiDotNetCoreTests.csproj
@@ -1,6 +1,6 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>net10.0;net9.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net11.0;net10.0;net9.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <Import Project="..\..\package-versions.props" />
@@ -22,4 +22,8 @@
     <PackageReference Include="MiniValidation" Version="$(MiniValidationVersion)" />
     <PackageReference Include="System.Text.Json" Version="$(SystemTextJsonVersion)" />
   </ItemGroup>
+
+  <ItemGroup Condition="'$(TargetFramework)' != 'net11.0'">
+    <Using Include="System.Net.Http.Json" />
+  </ItemGroup>
 </Project>
diff --git a/test/MultiDbContextTests/MultiDbContextTests.csproj b/test/MultiDbContextTests/MultiDbContextTests.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>net10.0;net9.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net11.0;net10.0;net9.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <Import Project="..\..\package-versions.props" />

diff --git a/test/NoEntityFrameworkTests/NoEntityFrameworkTests.csproj b/test/NoEntityFrameworkTests/NoEntityFrameworkTests.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>net10.0;net9.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net11.0;net10.0;net9.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <Import Project="..\..\package-versions.props" />

diff --git a/test/NoEntityFrameworkTests/NullSafeExpressionRewriterTests.cs b/test/NoEntityFrameworkTests/NullSafeExpressionRewriterTests.cs
@@ -206,7 +206,9 @@ public void Can_rewrite_where_clause_with_any_comparison()
         TestResource lastInDataSource = dataSource.Last();
 
         Expression<Func<IEnumerable<TestResource>, IEnumerable<TestResource>>> expression = source =>
+#pragma warning disable CA1860 // Avoid using 'Enumerable.Any()' extension method
             source.Where(resource => resource.Parent!.Parent!.Children.Any());
+#pragma warning restore CA1860 // Avoid using 'Enumerable.Any()' extension method
 
         var rewriter = new NullSafeExpressionRewriter();
 

diff --git a/test/SourceGeneratorTests/SourceGeneratorTests.csproj b/test/SourceGeneratorTests/SourceGeneratorTests.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>net10.0;net9.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net11.0;net10.0;net9.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <Import Project="..\..\package-versions.props" />

diff --git a/test/TestBuildingBlocks/TestBuildingBlocks.csproj b/test/TestBuildingBlocks/TestBuildingBlocks.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>net10.0;net9.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net11.0;net10.0;net9.0;net8.0</TargetFrameworks>
   </PropertyGroup>
 
   <Import Project="..\..\package-versions.props" />