26 - 28 OCT 2026 Utrecht Netherlands

What's New In .NET 11

Room 12Tue 27 Oct • 11:15–12:15DevIntroductory and overview
.NET 11 ships this November at .NET Conf, and this session gives you a focused, developer‑ready survey of the top features you need to know. In one hour, we’ll cover the improvements that genuinely change how you build, modernize, and ship .NET applications - including new tooling, new language features, runtime upgrades, ASP.NET Core enhancements, AI‑ready capabilities, and major updates in .NET MAUI. You’ll see the new dotnetup installer in action, explore C# 15’s powerful new union types, learn what’s new in AI‑powered development with MEAI and the Microsoft Agent Framework, and walk through the most important updates in ASP.NET Core, the runtime, MAUI, and EF Core. In one hour, we’ll cover the features that truly matter for .NET developers: dotnetup - the new unified installer/updater that simplifies acquiring and managing .NET C# 15 union types - expressive domain modeling, safer APIs, and better pattern matching New AI features in MEAI + MAF - improved tool‑calling, richer pipelines, better agent orchestration, and tighter integration with .NET 11 hosting and diagnostics ASP.NET Core 11 updates - SSR improvements, QuickGrid SSR, validation updates, OpenTelemetry defaults, Zstandard compression, and more Runtime performance upgrades - GC tuning, JIT enhancements, faster startup, and container‑friendly improvements .NET MAUI improvements - better performance, improved hot reload, more reliable rendering, updated controls, and smoother mobile development workflows SDK & tooling updates - dotnet watch improvements including Aspire app‑host integration, automatic crash recovery, and device selection for MAUI/mobile projects New features in EF Core - performance boosts, new LINQ capabilities, improved interceptors, and tooling updates shipping alongside .NET 11 This session gives you the clear, no‑nonsense survey of the top .NET 11 features you need to be fully ready to evaluate and adopt .NET 11.

About the speaker

Jon Galloway

Jon is a Program Manager on the Microsoft Developer Division community team. He’s been developing software professionally since the late 1990’s, and over the years has written several books, popular .NET tutorials and samples, a top speaker on Microsoft Virtual Academy, and worked behind the scenes on large Microsoft keynote demonstrations. He’s helped run the Herding Code podcast for 10 years, and tweets as @jongalloway.