Microsoft's .NET 11 Preview 2 offers cleaner stack traces

"New overloads on TarFile.CreateFromDirectory accept a TarEntryFormat parameter, giving direct control over the archive format. Previously, CreateFromDirectory produced Pax archives. The new overloads support all four tar formats—Pax, Ustar, GNU, and V7—for compatibility with specific tools and environments."

"Kestrel's HTTP/1.1 request parser now uses a non-throwing code path for handling malformed requests. Instead of throwing BadHttpRequestException on each parse failure, the parser returns a result struct indicating success, incomplete, or error states. In scenarios with many malformed requests, this eliminates expensive exception-handling overhead while improving throughput by up to 20% to 40%."

"TypedBinding and SourceGeneratedBinding in .NET MAUI are approximately 29% faster with 50% less memory allocation per binding operation. New TypeConverter implementations for Location and MapSpan enable concise XAML syntax for map coordinates, eliminating the need for verbose x:Arguments markup."

"Entity Framework Core supports translating the LINQ MaxByAsync and MinByAsync methods and their synchronous counterparts. These methods allow developers to find the element with the maximum or minimum value for a given key selector, rather than just the maximum or minimum value itself."

.NET 11 Preview 2 delivers multiple enhancements across its ecosystem. TarFile.CreateFromDirectory now accepts a TarEntryFormat parameter enabling direct control over archive formats for compatibility with specific tools. ASP.NET Core's Kestrel HTTP/1.1 parser eliminates exception-throwing for malformed requests, improving throughput by 20-40% in high-traffic scenarios. F# simplifies Default Interface Member hierarchies and introduces overload resolution caching for repeated method calls. .NET MAUI adds TypeConverter implementations for map coordinates and accelerates binding operations by 29% with 50% less memory allocation. Entity Framework Core now translates LINQ MaxByAsync and MinByAsync methods, enabling efficient element retrieval based on key selectors.

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