.NET news, announcements, release notes, and more! - dotnet/core

ASP.NET Core planning for .NET 11 is now in progress! This roadmap is currently just a placeholder. We'll update the roadmap with specific planned features as planning progresses. This issue repres...

Discover the latest .NET MAUI 11 features, including CoreCLR, XAML improvements, Native AOT, navigation updates, and developer productivity enhancements.

.NET 11 Preview 1–4: Hard Links in System.IO und neue Process-APIs wie RunAsync, StartAndForget und ReadAllText im Überblick.

Here's a summary of what's new in ASP.NET Core in this preview release: EnvironmentBoundary component Label component for forms DisplayName component QuickGrid OnRowClick event Relative navigation ...

In this post I discuss the support for union types released in .NET 11, how they're implemented, the choices made, and how to create your own

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.

.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.

C# expressions in XAML arrive in .NET 11, helping .NET MAUI developers cut boilerplate, format UI data faster, and build cleaner, more maintainable app interfaces.

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!

Explore the .NET 11 updates available now in .NET MAUI, including map enhancements, long press recognition, animation improvements and more.

What's Changed [net11.0] Fix net11 iOS versions by @rmarinho in #32980 Enable CoreCLR iOS and MacCatalyst device tests by @kotlarmilos in #33015 Fix CoreCLR build by @kotlarmilos in #33211 [net11....

.NET 11 porta con sé centinaia di ottimizzazioni, ma la domanda interessante è: quanto può diventare più veloce il nostro codice senza che noi cambiamo nulla? In questa puntata parto dal gigantesco post annuale di Stephen Toub sulle performance di .NET 11 per capire cosa sta migliorando nel JIT e nel runtime, passando anche per Runtime Async e alcune ottimizzazioni che possono avere un impatto sulle normali applicazioni ASP.NET Core. Il punto però non è dire che ".NET 11 è il 20% più veloce": i benchmark misurano scenari specifici e il risultato reale dipende sempre dal nostro workload. Ma è interessante capire quanto lavoro riesca ormai a fare il runtime per ottimizzare automaticamente il codice che abbiamo già scritto.  - https://devblogs.microsoft.com/dotnet/performance-improvements-in-net-11/?utm_source=chatgpt.com - https://learn.microsoft.com/en-us/dotnet/core/whats-new/dotnet-11/runtime?utm_source=chatgpt.com - https://devblogs.microsoft.com/dotnet/performance-improvements-in-net-11/ #dotnet #dotnet11 #performance #runtime #jit #runtimeasync #aspnetcore #csharp #softwaredevelopment #developers #programming #dotnetdeveloper #dotnetinpillole #podcast

Here's a summary of what's new in ASP.NET Core in this preview release: Async validation for minimal APIs Automatic cross-origin (CSRF) protection Blazor Virtualize can scroll to an item Configure ...

Union types. Mads Torgersen explains how C# will let you model a closed set of unrelated types, create union values from them, and switch over them in a fully strongly typed way. It lands in C# 15…

Microsoft has released the fifth preview of .NET 11, with updates across the SDK, C#, ASP.NET Core, .NET MAUI, and EF Core. Highlights include file-based app improvements, new C# closed classes and un...

WarningWe DO NOT own the domain ilspy[.]org See #3709 Download ILSpy only from GitHub Releases! This release is based on .NET 10.0. Please make sure that you have it installed on your machine befo...

Last week Microsoft released .NET 11 Preview 7, with updates across C#, ASP.NET Core, .NET MAUI, Entity Framework Core, Windows Forms, and F#. C# adds labeled break and continue. ASP.NET Core brings B...

The second preview of the upcoming .NET version, .NET 11, is available as of March 10th, 2026. The official announcement blog is available, and it gives you some of the most striking changes as of Preview 2. Read the official announcement The following changes to the preview were made since the last preview: Generic GetTypeInfo for System.Text.Json: The GetTypeInfo() and TryGetTypeInfo() methods have earned their own generic variants, which allows you to return a strongly-typed metadata directly without having to go through a process of casting to the appropriate type.

Mature programming languages rarely receive a foundational structure the community has anticipated for years. Microsoft recently released the highly anticipated C# 15 preview version. This release officially introduces union types, strictly closed hierarchies, and revised protocols for managing unsafe code. The company schedules the official launch for November 2026, coinciding directly with the .NET 11 release. The Power of Union Types…