Microsoft Ships .NET 11 Preview 6 Ahead of November Release
Updated
Updated · InfoWorld · Jul 15
Microsoft Ships .NET 11 Preview 6 Ahead of November Release
3 articles · Updated · InfoWorld · Jul 15
Summary
July 15 brought .NET 11 Preview 6, adding updates across the runtime, libraries, frameworks, and the C# and F# languages before a planned general release in November.
Runtime-async got another speed boost: async continuations can skip ExecutionContext capture and restore, and the JIT now compiles a dedicated async path instead of routing task-returning methods through an extra thunk.
System.Text.Json now supports the new C# union types, with serialization and deserialization via JsonTypeInfoKind.Union plus new customization APIs including JsonUnionAttribute and JsonUnionCaseInfo.
C# extension members now include indexers, completing a feature set that .NET 10 had started with extension methods and properties.
.NET MAUI and ASP.NET Core also advanced, with MAUI dropping the Xamarin.Forms compatibility package and ASP.NET Core minimal API validation gaining end-to-end asynchronous validator support.