core/release-notes/9.0/preview/preview4

.NET 9 Preview 4 - Release Notes

.NET 9 Preview 4 was released on May 21st, 2024. Find more information on new features released in .NET 9 Preview 4 by browsing through the release notes below:

• Libraries
• Runtime
• .NET Data and EF Core
• .NET MAUI
• ASP.NET Core
• WPF
• API diff

Get Started

Instructions on getting started with .NET 9 can be found in the getting started guide. Installers and binaries for .NET 9 Preview 4 can be found here on GitHub.

Announcements & Discussions

Discuss this release with the product teams on GitHub through the announcements for this release.

• .NET 9 Preview 4
• .NET MAUI
• ASP.NET Core
• Libraries & Runtime

Stay up-to-date

You can find a detailed overview of all new features in .NET 9:

• What's new in .NET 9
• What's new in ASP.NET Core
• What's new in .NET MAUI
• What's new in EF Core

The latest .NET 9 release is always available at dotnet.microsoft.com and .NET 9 Releases.