Announcing .NET 9 - .NET Blog
Announcing .NET 9 - .NET Blog
Announcing the release of .NET 9, the most productive, modern, secure, intelligent, and performant release of .NET yet. With updates across ASP.NET Core, C#, .NET MAUI, .NET Aspire, and so much more.
- What's new in .NET 9
- What's new in ASP.NET Core 9.0
- What's New in EF Core 9
- What's new in Windows Forms for .NET 9
- What's new in WPF for .NET 9
- What's new in .NET MAUI for .NET 9
- Latest stable channel release notes for the Windows App SDK
- What's new in C# 13
- What's new in F# 9
- Visual Studio 2022 version 17.12 announcement, release notes
Great to see OpenAPI being even more embraced. It truly is fantastic for multi-team engineering
Semi auto properties and params collection are long overdue. Great to see them in there.
System.Text.Json respecting nullability is also great. But may break some things if you didn't realise you were relying on the old behaviour.
LoggerMessage source gen using primary constructors fixes a minor pain.
EF generating SQL at compile time is also pretty sweet. Better query performance from precompiled and better startup performance from not having to precompile at runtime.
All in all it looks pretty good.