[release-notes] ASP.NET Core in .NET 11 GA

release-notes/11.0/11.0.0/aspnetcore.md

@@ -1,3 +1,34 @@
 # ASP.NET Core in .NET 11 - Release Notes
 
-<!-- TODO: Add release notes or confirm there are no noteworthy changes. -->
+The final ASP.NET Core updates for .NET 11 focus on quality and stability.
+
+For features introduced throughout the release, see [What's new in ASP.NET Core in .NET 11](https://learn.microsoft.com/aspnet/core/release-notes/aspnetcore-11?view=aspnetcore-11.0).
+
+## Breaking changes and migration
+
+Before upgrading an existing app, review [Breaking changes in ASP.NET Core in .NET 11](https://learn.microsoft.com/aspnet/core/breaking-changes/11/overview?view=aspnetcore-11.0).
+
+## Bug fixes
+
+### Data Protection
+
+- [Reduce managed encryption and decryption allocations for SHA-256 and SHA-512 validation](https://github.com/dotnet/aspnetcore/pull/69789)
+
+### Validation
+
+- [Validate attributes on active union cases in MVC](https://github.com/dotnet/aspnetcore/pull/69834)
+- [Honor skipped validation and traverse union cases in Minimal API collections](https://github.com/dotnet/aspnetcore/pull/69870)
+
+### Hosting and caching
+
+- [Honor custom output-cache policies that explicitly allow already-authenticated users](https://github.com/dotnet/aspnetcore/pull/69724)
+- [Fix first-request HTTP 404 errors for IIS in-process apps hosted in virtual directories](https://github.com/dotnet/aspnetcore/pull/69837)
+
+### SignalR
+
+- [Bind SignalR connection tokens to their originating endpoint mapping, preventing reuse across separately mapped endpoints](https://github.com/dotnet/aspnetcore/pull/69835)
+
+## Community contributors
+
+- [@marcominerva](https://github.com/marcominerva): [Output caching fix](https://github.com/dotnet/aspnetcore/pull/69724)
+- [@Souheyl7Gouadria](https://github.com/Souheyl7Gouadria): [IIS startup routing fix](https://github.com/dotnet/aspnetcore/pull/69837)