.NET 9 Preview 1

Welcome to .NET 9! We're happy to deliver the first preview of .NET 9 and share in-depth release notes that provide varied and impressive improvements for the first preview out of the gate. We also published [Our Vision for .NET 9](https://aka.ms/dotnet/9/vision), which describes some of the broad areas we intend to deliver on by the final November 2024 release.

You can find [detailed release notes about the new features in .NET 9 Preview 1](https://github.com/dotnet/core/tree/main/release-notes/9.0/preview/preview1) and up-to-date [What's new in .NET 9](https://learn.microsoft.com/dotnet/core/whats-new/dotnet-9/overview) in [.NET docs](https://learn.microsoft.com/dotnet/core/introduction).

The latest .NET 9 release is always available at [dotnet.microsoft.com](https://dotnet.microsoft.com/download/dotnet/9.0) and [.NET 9 Releases](https://github.com/dotnet/core/blob/main/release-notes/9.0/README.md).

You may be surprised to be reading about our release on GitHub Discussions. Check out [Welcome to .NET Release News on GitHub Discussions!](https://github.com/dotnet/core/discussions/9131) to learn more about how we're approaching documenting and sharing preview releases.

## Team Announcements

Check out the team announcements.

* .NET 9: [Announcement](https://github.com/dotnet/core/discussions/9167)
* .NET Data and EF Core: [Announcement](https://github.com/dotnet/efcore/issues/33030)
* .NET MAUI: [Announcement](https://github.com/dotnet/maui/discussions/20558)
* ASP.NET Core: [Announcement](https://github.com/dotnet/aspnetcore/discussions/54007)
* Libraries [Announcement](https://github.com/dotnet/runtime/discussions/98372)
* Runtime: [Announcement](https://github.com/dotnet/runtime/discussions/98372)
* Containers: [Announcement](https://github.com/dotnet/dotnet-docker/discussions/5198)

Please tell us what you think about the new release. There is lots more to come!

Start with the linked .NET 9 Preview 1 release notes and the .NET 9 What's new overview to understand the announcement's scope. There is no requested documentation change, file, test, or acceptance criterion in the issue, so completion cannot be determined from the payload.

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