Dev Blogs
.NET Conf returns November 10-12, 2026, with three days of sessions, community, and the launch of .NET 11.
C# 15 ships with .NET 11. It adds union types, closed hierarchies, a preview of the updated unsafe model, and a few smaller changes that remove everyday ceremony.
Find out about the new features in .NET 11 Preview 7 across libraries, runtime, SDK, C#, ASP.NET Core, .NET MAUI, Entity Framework Core, F#, and Windows Forms.
Find out about the new features in .NET 11 Preview 6 across runtime, SDK, libraries, ASP.NET Core, .NET MAUI, C#, Entity Framework Core, F#, and container images.
Find out about the new features in .NET 11 Preview 5 across the .NET runtime, SDK, libraries, ASP.NET Core, .NET MAUI, C#, Entity Framework Core, and more!
Catch up on all the .NET sessions from Microsoft Build 2026 covering .NET 11, union types in C#, AI building blocks, the agentic web, .NET MAUI, and more!
The `unsafe` keyword is being redesigned to mark caller-facing contracts rather than just syntax. Safety obligations between callers and callees become visible and reviewable. The model is motivated by the rise of AI-assisted code generation and arrives as a preview in .NET 11.
.NET MAUI apps on Android, iOS, and Mac Catalyst now run on CoreCLR by default in .NET 11, unifying the runtime across all of .NET.
Find out about the new features in .NET 11 Preview 4 across the .NET runtime, SDK, libraries, ASP.NET Core, .NET MAUI, C#, Entity Framework Core, and more!
.NET MAUI 11 adds pin clustering to the Map control, automatically grouping nearby pins into cluster markers. Learn how to enable clustering, create separate clustering groups, and handle cluster taps on Android and iOS.