modabas · modabas · Jul 21, 2025 · Jul 20, 2025 · Jul 21, 2025
diff --git a/Directory.Build.props b/Directory.Build.props
@@ -18,6 +18,6 @@
     <PackageLicenseExpression>MIT</PackageLicenseExpression>
     <PackageRequireLicenseAcceptance>True</PackageRequireLicenseAcceptance>
 
-    <Version>1.3.4</Version>
+    <Version>1.3.5</Version>
   </PropertyGroup>
 </Project>
diff --git a/samples/ServiceEndpointClient/ServiceEndpointClient.csproj b/samples/ServiceEndpointClient/ServiceEndpointClient.csproj
@@ -6,8 +6,8 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.Hosting" Version="9.0.6" />
-    <PackageReference Include="Microsoft.Extensions.Http.Polly" Version="9.0.6" />
+    <PackageReference Include="Microsoft.Extensions.Hosting" Version="9.0.7" />
+    <PackageReference Include="Microsoft.Extensions.Http.Polly" Version="9.0.7" />
   </ItemGroup>
 
   <ItemGroup>

diff --git a/samples/ShowcaseWebApi/ShowcaseWebApi.csproj b/samples/ShowcaseWebApi/ShowcaseWebApi.csproj
@@ -5,8 +5,8 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="9.0.6" />
-    <PackageReference Include="Swashbuckle.AspNetCore" Version="8.1.4" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="9.0.7" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="9.0.3" />
     <PackageReference Include="FluentValidation.DependencyInjectionExtensions" Version="12.0.0" />
     <PackageReference Include="Asp.Versioning.Http" Version="8.1.0" />
     <PackageReference Include="Asp.Versioning.Mvc.ApiExplorer" Version="8.1.0" />

diff --git a/samples/WeatherForecastWebApi/WeatherForecastWebApi.csproj b/samples/WeatherForecastWebApi/WeatherForecastWebApi.csproj
@@ -7,8 +7,8 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="9.0.6" />
-    <PackageReference Include="Scalar.AspNetCore" Version="2.4.13" />
+    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="9.0.7" />
+    <PackageReference Include="Scalar.AspNetCore" Version="2.6.3" />
   </ItemGroup>
 
   <ItemGroup>

diff --git a/src/ModEndpoints.RemoteServices/ModEndpoints.RemoteServices.csproj b/src/ModEndpoints.RemoteServices/ModEndpoints.RemoteServices.csproj
@@ -21,8 +21,8 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.Http" Version="9.0.6" />
-    <PackageReference Include="ModResults" Version="1.0.1" />
+    <PackageReference Include="Microsoft.Extensions.Http" Version="9.0.7" />
+    <PackageReference Include="ModResults" Version="1.0.2" />
   </ItemGroup>
 
   <ItemGroup>

diff --git a/src/ModEndpoints/ModEndpoints.csproj b/src/ModEndpoints/ModEndpoints.csproj
@@ -21,7 +21,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="ModResults.MinimalApis" Version="1.0.1" />
+    <PackageReference Include="ModResults.MinimalApis" Version="1.0.2" />
   </ItemGroup>
 
   <ItemGroup>

diff --git a/src/ModEndpoints/[WebResultEndpoint]/DefaultPreferredSuccessStatusCodeCacheForResult.cs b/src/ModEndpoints/[WebResultEndpoint]/DefaultPreferredSuccessStatusCodeCacheForResult.cs
@@ -40,7 +40,19 @@ public class DefaultPreferredSuccessStatusCodeCacheForResult : IPreferredSuccess
         var producesList = endpoint
           .Metadata
           .GetOrderedMetadata<IProducesResponseTypeMetadata>();
-        if (producesList is null || producesList.Count == 0)
+#if NET9_0
+        // Exclude IResult responses with application/json content type for StatusCodes.Status200OK
+        // .NET 9.0 adds it by default, so we filter it out while determining preferred status code
+        // see https://github.com/dotnet/aspnetcore/issues/57801
+        producesList = producesList.Where(p =>
+          (p.StatusCode == StatusCodes.Status200OK &&
+          p.ContentTypes.Count() == 1 &&
+          p.ContentTypes.First() == "application/json" &&
+          p.Type == typeof(IResult)) == false)
+        .ToList()
+        .AsReadOnly();
+#endif
+        if (producesList.Count == 0)
         {
           return null;
         }

diff --git a/src/ModEndpoints/[WebResultEndpoint]/DefaultPreferredSuccessStatusCodeCacheForResultOfT.cs b/src/ModEndpoints/[WebResultEndpoint]/DefaultPreferredSuccessStatusCodeCacheForResultOfT.cs
@@ -40,7 +40,19 @@ public class DefaultPreferredSuccessStatusCodeCacheForResultOfT : IPreferredSucc
         var producesList = endpoint
           .Metadata
           .GetOrderedMetadata<IProducesResponseTypeMetadata>();
-        if (producesList is null || producesList.Count == 0)
+#if NET9_0
+        // Exclude IResult responses with application/json content type for StatusCodes.Status200OK
+        // .NET 9.0 adds it by default, so we filter it out while determining preferred status code
+        // see https://github.com/dotnet/aspnetcore/issues/57801
+        producesList = producesList.Where(p =>
+          (p.StatusCode == StatusCodes.Status200OK &&
+          p.ContentTypes.Count() == 1 &&
+          p.ContentTypes.First() == "application/json" &&
+          p.Type == typeof(IResult)) == false)
+        .ToList()
+        .AsReadOnly();
+#endif
+        if (producesList.Count == 0)
         {
           return null;
         }

diff --git a/tests/ModEndpoints.TestServer.Customers/ModEndpoints.TestServer.Customers.csproj b/tests/ModEndpoints.TestServer.Customers/ModEndpoints.TestServer.Customers.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFrameworks>net8.0;net9.0</TargetFrameworks>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>

diff --git a/tests/ModEndpoints.TestServer/ModEndpoints.TestServer.csproj b/tests/ModEndpoints.TestServer/ModEndpoints.TestServer.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFrameworks>net8.0;net9.0</TargetFrameworks>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>

diff --git a/tests/ModEndpoints.Tests/ModEndpoints.Tests.csproj b/tests/ModEndpoints.Tests/ModEndpoints.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFrameworks>net8.0;net9.0</TargetFrameworks>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
 
@@ -14,17 +14,23 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="8.0.17" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
     <PackageReference Include="NSubstitute" Version="5.3.0" />
-    <PackageReference Include="System.Linq.Async" Version="6.0.1" />
+    <PackageReference Include="System.Linq.Async" Version="6.0.3" />
     <PackageReference Include="xunit" Version="2.9.3" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="3.1.1">
+    <PackageReference Include="xunit.runner.visualstudio" Version="3.1.3">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
   </ItemGroup>
 
+  <ItemGroup Condition="$(TargetFramework) == 'net8.0'">
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="8.0.18" />
+  </ItemGroup>
+  <ItemGroup Condition="$(TargetFramework) == 'net9.0'">
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="9.0.7" />
+  </ItemGroup>
+
   <ItemGroup>
     <ProjectReference Include="..\ModEndpoints.TestServer\ModEndpoints.TestServer.csproj" />
   </ItemGroup>