Today’s .NET Blog announces \.NET 11, a faster and more productive release that accelerates modern application development. The update brings enhancements across C# 15, ASP.NET Core, .NET MAUI, and Windows tooling, with hundreds of runtime optimizations and a more responsive SDK. Developers can expect less wait time and more creation time, plus richer web and cross‑platform apps.
Key new features include C# 15’s union types and closed hierarchies, a Native AOT CLI host, a warm MSBuild server, and ASP.NET Core’s async validation, OpenAPI 3.2, and Blazor/SignalR improvements. Experimental Blazor AI components integrate with AG‑UI for agentic web experiences, while Microsoft Extensions AI (MEAI), MCP, and the Agent Framework enable AI‑powered, agentic applications. .NET Skills, MAUI Dev Flow, and the Upgrade canvas provide tooling for modernization and testing.
Support details: \.NET 11 is a Standard Term Support (STS) release with two years of support, matching LTS quality but with a shorter timeline. .NET 10 remains the LTS option. The release will be highlighted at \.NET Conf 2026 (Nov 10‑13), featuring product sessions and community tracks. Join the livestream or explore the session playlist to see the new capabilities in action.
Source: Hacker News · Summarized by HeadlinesBriefing