Windows 11 23H2 build 22621.9346 (KB5126424) — release notes, downloads, known issues

Windows 11 · 23H2 · .NET Framework update

Cumulative Update for .NET Framework for Windows 11, version 23H2 - KB5126424 (22621.9346)

Windows 11 23H2: Home/Pro servicing ended November 2025

This is a .NET Framework package for Windows 11 23H2, not an operating-system build. Its history below lists other .NET packages on the 22621 base.

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