core/release-notes/9.0/README.md

.NET 9

.NET 9 is a Standard Term Support (STS) release and will be supported for 18 months, from November 12th, 2024 to May 13th, 2026. It is supported on multiple operating systems.

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• Supported OSes
• Known Issues
• Installation instructions

Release notes

Date	Release
2024/05/21	9.0.0 Preview 4
2024/04/11	9.0.0 Preview 3
2024/03/12	9.0.0 Preview 2
2024/02/13	9.0.0 Preview 1

.NET Libraries

• Preview 1
• Preview 2: No release notes
• Preview 3

.NET Runtime

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• Preview 2
• Preview 3

.NET SDK

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• Preview 2
• Preview 3

ASP.NET Core

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• Preview 2
• Preview 3

.NET MAUI

• Preview 1
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• Preview 3

Entity Framework Core

• Preview 1
• Preview 2
• Preview 3