Windows 11 · 25H2 · .NET Framework update

.NET Framework Security Update for Windows 11 - KB5127690 (26200.9363)

Windows 11 25H2: Home/Pro supported through 2027-10-12; Enterprise/Education through 2028-10-10

Microsoft release information · Verified Oct 13, 2026

This is a .NET Framework package for Windows 11 25H2, not an operating-system build. Its history below lists other .NET packages on the 26200 base.

AI summary

This is the Release-channel Windows 11, version 25H2 entry for .NET Framework Security Update KB5127690, OS build 26200.9363 (revision 3). I couldn’t verify specific changes for this exact build, so I’m summarizing only its release identity.

Generated from the package's release notes and forum coverage. Verify against Microsoft's release-health page before acting on it.

Known issues — reported on the forum

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