json-api-dotnet · bkoelman · Feb 21, 2026 · Feb 20, 2026 · Feb 20, 2026 · Feb 20, 2026
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
@@ -50,6 +50,11 @@ 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: |
@@ -166,6 +171,11 @@ 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@v6
       with:
@@ -229,6 +239,11 @@ 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@v6
       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@v6
       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@v6
       with:

diff --git a/Directory.Build.props b/Directory.Build.props
@@ -14,6 +14,11 @@
     <OpenApiPreviewNumber>8</OpenApiPreviewNumber>
   </PropertyGroup>
 
+  <PropertyGroup>
+    <!-- .NET 11 Preview -->
+    <SuppressNETCoreSdkPreviewMessage>true</SuppressNETCoreSdkPreviewMessage>
+  </PropertyGroup>
+
   <PropertyGroup>
     <NoWarn>
       <!--

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/package-versions.props b/package-versions.props
@@ -5,7 +5,8 @@
     <DemystifierFrozenVersion>0.4.1</DemystifierFrozenVersion>
     <HumanizerFrozenVersion>2.14.1</HumanizerFrozenVersion>
     <NewtonsoftJsonFrozenVersion>13.0.4</NewtonsoftJsonFrozenVersion>
-    <SwashbuckleFrozenVersion>10.1.7</SwashbuckleFrozenVersion>
+    <SwashbuckleFrozenVersion_NET8_9>10.1.5</SwashbuckleFrozenVersion_NET8_9>
+    <SwashbuckleFrozenVersion_NET10_11>*-pr.3786.*</SwashbuckleFrozenVersion_NET10_11>
     <SystemTextRegularExpressionsFrozenVersion>4.3.1</SystemTextRegularExpressionsFrozenVersion>
 
     <!-- Non-published dependencies (these are safe to update, won't cause a breaking change) -->
@@ -20,50 +21,77 @@
     <GitHubActionsTestLoggerVersion>3.0.*</GitHubActionsTestLoggerVersion>
     <InheritDocVersion>2.0.*</InheritDocVersion>
     <KiotaVersion>1.*</KiotaVersion>
-    <MicrosoftApiServerVersion>10.0.*</MicrosoftApiServerVersion>
     <MiniValidationVersion>0.9.*</MiniValidationVersion>
     <NSwagApiClientVersion>14.7.*</NSwagApiClientVersion>
     <NewtonsoftJsonVersion>13.0.*</NewtonsoftJsonVersion>
     <PolyfillVersion>10.3.*</PolyfillVersion>
     <ReadableExpressionsVersion>4.1.*</ReadableExpressionsVersion>
     <ScalarAspNetCoreVersion>2.13.*</ScalarAspNetCoreVersion>
-    <SwashbuckleVersion>10.*-*</SwashbuckleVersion>
-    <SystemTextJsonVersion>10.0.*</SystemTextJsonVersion>
+    <SwashbuckleVersion_NET8_9>10.*-*</SwashbuckleVersion_NET8_9>
     <TestSdkVersion>18.4.*</TestSdkVersion>
     <XunitVersion>2.9.*</XunitVersion>
     <XunitVisualStudioVersion>3.1.*</XunitVisualStudioVersion>
   </PropertyGroup>
 
+  <PropertyGroup Condition="'$(TargetFramework)' == 'net11.0'">
+    <!-- Published dependencies (only update on major version change) -->
+    <EntityFrameworkCoreFrozenVersion>11.0.*-*</EntityFrameworkCoreFrozenVersion>
+    <SwashbuckleFrozenVersion>$(SwashbuckleFrozenVersion_NET10_11)</SwashbuckleFrozenVersion>
+
+    <!-- Non-published dependencies (these are safe to update, won't cause a breaking change) -->
+    <AspNetCoreVersion>11.0.*-*</AspNetCoreVersion>
+    <EntityFrameworkCoreVersion>11.0.*-*</EntityFrameworkCoreVersion>
+    <MicrosoftApiServerVersion>11.0.*-*</MicrosoftApiServerVersion>
+    <PomeloEntityFrameworkCoreVersion>
+      <!-- Temporary workaround: Unstable EF Core 10 package for Pomelo.EntityFrameworkCore.MySql is not available yet. -->
+      9.0.*
+    </PomeloEntityFrameworkCoreVersion>
+    <SwashbuckleVersion>$(SwashbuckleFrozenVersion)</SwashbuckleVersion>
+    <SystemTextJsonVersion>11.0.*-*</SystemTextJsonVersion>
+  </PropertyGroup>
+
   <PropertyGroup Condition="'$(TargetFramework)' == 'net10.0'">
     <!-- Published dependencies (only update on major version change) -->
     <EntityFrameworkCoreFrozenVersion>10.0.0</EntityFrameworkCoreFrozenVersion>
+    <SwashbuckleFrozenVersion>$(SwashbuckleFrozenVersion_NET10_11)</SwashbuckleFrozenVersion>
 
     <!-- Non-published dependencies (these are safe to update, won't cause a breaking change) -->
     <AspNetCoreVersion>10.0.*</AspNetCoreVersion>
     <EntityFrameworkCoreVersion>10.0.*-*</EntityFrameworkCoreVersion>
+    <MicrosoftApiServerVersion>11.0.*-*</MicrosoftApiServerVersion>
     <PomeloEntityFrameworkCoreVersion>
       <!-- Temporary workaround: Unstable EF Core 10 package for Pomelo.EntityFrameworkCore.MySql is not available yet. -->
       9.0.*
     </PomeloEntityFrameworkCoreVersion>
+    <SwashbuckleVersion>$(SwashbuckleFrozenVersion)</SwashbuckleVersion>
+    <SystemTextJsonVersion>10.0.*</SystemTextJsonVersion>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(TargetFramework)' == 'net9.0'">
     <!-- Published dependencies (only update on major version change) -->
     <EntityFrameworkCoreFrozenVersion>N/A</EntityFrameworkCoreFrozenVersion>
+    <SwashbuckleFrozenVersion>$(SwashbuckleFrozenVersion_NET8_9)</SwashbuckleFrozenVersion>
 
     <!-- Non-published dependencies (these are safe to update, won't cause a breaking change) -->
     <AspNetCoreVersion>9.0.*</AspNetCoreVersion>
     <EntityFrameworkCoreVersion>9.0.*</EntityFrameworkCoreVersion>
+    <MicrosoftApiServerVersion>10.0.*</MicrosoftApiServerVersion>
     <PomeloEntityFrameworkCoreVersion>$(EntityFrameworkCoreVersion)</PomeloEntityFrameworkCoreVersion>
+    <SwashbuckleVersion>$(SwashbuckleVersion_NET8_9)</SwashbuckleVersion>
+    <SystemTextJsonVersion>10.0.*</SystemTextJsonVersion>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(TargetFramework)' == 'net8.0'">
     <!-- Published dependencies (only update on major version change) -->
     <EntityFrameworkCoreFrozenVersion>8.0.0</EntityFrameworkCoreFrozenVersion>
+    <SwashbuckleFrozenVersion>$(SwashbuckleFrozenVersion_NET8_9)</SwashbuckleFrozenVersion>
 
     <!-- Non-published dependencies (these are safe to update, won't cause a breaking change) -->
     <AspNetCoreVersion>8.0.*</AspNetCoreVersion>
     <EntityFrameworkCoreVersion>8.0.*</EntityFrameworkCoreVersion>
+    <MicrosoftApiServerVersion>10.0.*</MicrosoftApiServerVersion>
     <PomeloEntityFrameworkCoreVersion>$(EntityFrameworkCoreVersion)</PomeloEntityFrameworkCoreVersion>
+    <SwashbuckleVersion>$(SwashbuckleVersion_NET8_9)</SwashbuckleVersion>
+    <SystemTextJsonVersion>10.0.*</SystemTextJsonVersion>
   </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" />

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>
     <OpenApiGenerateDocumentsOnBuild>true</OpenApiGenerateDocumentsOnBuild>
     <OpenApiDocumentsDirectory>GeneratedSwagger</OpenApiDocumentsDirectory>
   </PropertyGroup>

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/OpenApiKiotaClientExample/OpenApiKiotaClientExample.csproj b/src/Examples/OpenApiKiotaClientExample/OpenApiKiotaClientExample.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk.Worker">
   <PropertyGroup>
-    <TargetFramework>net10.0</TargetFramework>
+    <TargetFramework>net11.0</TargetFramework>
   </PropertyGroup>
 
   <Import Project="..\..\..\package-versions.props" />

diff --git a/src/Examples/OpenApiNSwagClientExample/OpenApiNSwagClientExample.csproj b/src/Examples/OpenApiNSwagClientExample/OpenApiNSwagClientExample.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Worker">
   <PropertyGroup>
     <!-- TargetFrameworks does not work, see https://github.com/domaindrivendev/Swashbuckle.AspNetCore/issues/2706 -->
-    <TargetFramework>net10.0</TargetFramework>
+    <TargetFramework>net11.0</TargetFramework>
   </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.OpenApi.Client.Kiota/JsonApiDotNetCore.OpenApi.Client.Kiota.csproj b/src/JsonApiDotNetCore.OpenApi.Client.Kiota/JsonApiDotNetCore.OpenApi.Client.Kiota.csproj
@@ -1,6 +1,6 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<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>
     <OpenApiGenerateDocuments>false</OpenApiGenerateDocuments>

diff --git a/src/JsonApiDotNetCore.OpenApi.Client.NSwag/JsonApiDotNetCore.OpenApi.Client.NSwag.csproj b/src/JsonApiDotNetCore.OpenApi.Client.NSwag/JsonApiDotNetCore.OpenApi.Client.NSwag.csproj
@@ -1,6 +1,6 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<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>
     <OpenApiGenerateDocuments>false</OpenApiGenerateDocuments>

diff --git a/src/JsonApiDotNetCore.OpenApi.Swashbuckle/JsonApiDotNetCore.OpenApi.Swashbuckle.csproj b/src/JsonApiDotNetCore.OpenApi.Swashbuckle/JsonApiDotNetCore.OpenApi.Swashbuckle.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>
     <OpenApiGenerateDocuments>false</OpenApiGenerateDocuments>

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/JsonApiDotNetCoreTests.csproj b/test/JsonApiDotNetCoreTests/JsonApiDotNetCoreTests.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/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/OpenApiKiotaEndToEndTests/AttributeTypes/AttributeTypeTests.cs b/test/OpenApiKiotaEndToEndTests/AttributeTypes/AttributeTypeTests.cs
@@ -500,8 +500,8 @@ 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), "The JSON value is not in a supported Version format.")]
-    [InlineData(nameof(TypeContainer.TestNullableVersion), "The JSON value is not in a supported Version format.")]
+    [InlineData(nameof(TypeContainer.TestVersion), "The JSON value could not be converted to System.Version.")]
+    [InlineData(nameof(TypeContainer.TestNullableVersion), "The JSON value could not be converted to System.Version.")]
     public async Task Cannot_update_resource_with_attribute_set_to_invalid_value(string propertyName, string innerParseError)
     {
         // Arrange

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

diff --git a/test/OpenApiNSwagClientTests/OpenApiNSwagClientTests.csproj b/test/OpenApiNSwagClientTests/OpenApiNSwagClientTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <!-- TargetFrameworks does not work, see https://github.com/domaindrivendev/Swashbuckle.AspNetCore/issues/2706 -->
-    <TargetFramework>net10.0</TargetFramework>
+    <TargetFramework>net11.0</TargetFramework>
   </PropertyGroup>
 
   <Import Project="..\..\package-versions.props" />

diff --git a/test/OpenApiNSwagEndToEndTests/AttributeTypes/AttributeTypeTests.cs b/test/OpenApiNSwagEndToEndTests/AttributeTypes/AttributeTypeTests.cs
@@ -493,8 +493,8 @@ 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), "The JSON value is not in a supported Version format.")]
-    [InlineData(nameof(TypeContainer.TestNullableVersion), "The JSON value is not in a supported Version format.")]
+    [InlineData(nameof(TypeContainer.TestVersion), "The JSON value could not be converted to System.Version.")]
+    [InlineData(nameof(TypeContainer.TestNullableVersion), "The JSON value could not be converted to System.Version.")]
     public async Task Cannot_update_resource_with_attribute_set_to_invalid_value(string propertyName, string innerParseError)
     {
         // Arrange

diff --git a/test/OpenApiNSwagEndToEndTests/OpenApiNSwagEndToEndTests.csproj b/test/OpenApiNSwagEndToEndTests/OpenApiNSwagEndToEndTests.csproj
@@ -1,7 +1,7 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <!-- TargetFrameworks does not work, see https://github.com/domaindrivendev/Swashbuckle.AspNetCore/issues/2706 -->
-    <TargetFramework>net10.0</TargetFramework>
+    <TargetFramework>net11.0</TargetFramework>
   </PropertyGroup>
 
   <Import Project="..\..\package-versions.props" />