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Releasing .NET Framework 4.8.1 to the Release Preview Channel

Written By published June 13, 2023

Hello Windows Insiders, today we’re releasing .NET Framework 4.8.1 (KB5011048) to Insiders in the Release Preview Channel on Windows 11, version 21H2 (original release), Windows 10, version 21H2 (LTSC), and Windows 10, version 22H2.

.NET Framework 4.8.1 includes native support for the Arm64 architecture (on Windows 11 only), as well as accessibility improvements and other improvements. You can see the complete list of improvements in the .NET Framework 4.8.1 release notes and the original .NET Framework 4.8.1 release announcement, here: Announcing .NET Framework 4.8.1 – .NET Blog (

.NET Framework 4.8.1 will also soon be available on Windows Update and Catalog. You can find more information about this upcoming release availability here: Upcoming availability of .NET Framework 4.8.1 on Windows Update and Catalog – .NET Blog (

Windows Insider Program Team