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ASP.NET Core is a cross-platform .NET framework for building modern cloud-based web applications on Windows, Mac, or Linux.

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### Is there an existing issue for this? - [x] I have searched the existing issues ### Describe the bug We have an ASP.NET application providing a number of gRPC...

feature-iis
area-grpc

### Is there an existing issue for this? - [x] I have searched the existing issues ### Describe the bug Steps: 1. Create "Blazor Web Assembly Standalone App" via new...

investigate
area-blazor

Backport of #62358 and partial #62369 (fixing CI) to release/10.0-preview6 /cc @ilonatommy # Flip switch for controlling navigation flow on SSR Flips the App switch for controlling the navigation flow...

area-blazor

### Describe the bug The MessageHandler relies on the Middleware to initialize `HeaderPropagationValues.Headers` to detect misconfiguration. However this means the Messagehandler can not be used outside of an http request...

enhancement
affected-few
severity-major
area-middleware

- Replace [Components/WebAssembly/WebAssembly/src/HotReload](https://github.com/dotnet/aspnetcore/tree/main/src/Components/WebAssembly/WebAssembly/src/HotReload) with Microsoft.DotNet.HotReload.Agent.nupkg from the dotnet/sdk repo. - Ensure the implementation works for .NET WebAssembly scenarios. Where there are mismatches, update the source package to benefit all workloads....

area-blazor

### Is there an existing issue for this? - [X] I have searched the existing issues ### Describe the bug I have some polymorphic types ```cs [JsonPolymorphic(TypeDiscriminatorPropertyName = "$dis")] [JsonDerivedType(typeof(Cat),...

area-mvc
feature-openapi
area-minimal

## Failing Test(s) - Microsoft.AspNetCore.Components.E2ETest.ServerExecutionTests.ServerFormsTest.CanWireUpINotifyPropertyChangedToEditContext ## Error Message ```text OpenQA.Selenium.NoSuchElementException : no such element: Unable to locate element: {"method":"css selector","selector":".user\-name"} (Session info: chrome=137.0.7151.68); For documentation on this error, please visit:...

test-failure
needs-area-label

# `IHttpRequestBodyDetectionFeature` for HTTP/3 GET requests `IHttpRequestBodyDetectionFeature` returns false for HTTP/3 (bodyless) GET requests ## Description - Implementation follows the HTTP/2 structure. - Updated `IHttpRequestBodyDetectionFeature` to include HTTP/3 descriptions for...

community-contribution
area-networking

This pull request updates the following dependencies [marker]: (Begin:4f4b0ddb-c5f4-4ab0-0eac-08db9e40a4f0) ## From https://github.com/dotnet/arcade - **Subscription**: [4f4b0ddb-c5f4-4ab0-0eac-08db9e40a4f0](https://maestro.dot.net/subscriptions?search=4f4b0ddb-c5f4-4ab0-0eac-08db9e40a4f0) - **Build**: [20250610.3](https://dev.azure.com/dnceng/internal/_build/results?buildId=2727308) - **Date Produced**: June 10, 2025 10:07:55 PM UTC - **Commit**: [2ce3f8c7b2614c2b19985b669ffcd934bc39ffd1](https://github.com/dotnet/arcade/commit/2ce3f8c7b2614c2b19985b669ffcd934bc39ffd1)...

area-infrastructure
Type: Dependency Update :arrow_up_small:

Before this change, Kestrel had a narrow race where it could fail to trigger the RequestAborted token despite the underlying connection closing. Because CancellationTokenSource.TryReset() is not thread-safe, concurrent calls to...

area-networking