ASP.NET Core updates in .NET 11 Preview 4

[danroth27]

Here's a summary of what's new in ASP.NET Core in this preview release:

• HTTP QUERY in generated OpenAPI documents
• SupplyParameterFromTempData for Blazor
• Server-initiated Blazor Server circuit pause
• Virtualize keeps the viewport stable when content above it changes
• Virtualize AnchorMode for stable viewports during prepend and append
• Blazor WebAssembly service defaults template
• MCP Server template ships with the .NET SDK
• Blazor Web Worker template updates
• TLS handshake observability in Kestrel
• Response compression always emits Vary: Accept-Encoding
• File result types appear in OpenAPI documents
• Endpoint filters observe parameter-binding failures
• Smaller Blazor WebAssembly publish output
• Runtime-async enabled for shared framework libraries

ASP.NET Core updates in .NET 11:

• What's new in ASP.NET Core in .NET 11
• Roadmap