.NET 9 is now generally available, read about the final release on the .NET Blog announcement.
This release was focused on quality improvements for the general availability of .NET 9. See the GitHub Release changelog for more information in changes between this release and RC 2.
ASP.NET Core updates in .NET 9:
- What's new in ASP.NET Core in .NET 9 documentation.
- Breaking changes
- Roadmap
.NET 9 Release: