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Windows 11 23H2 Reaches End of Support with Final Patch

First seen 10 Nov 2026, 21:50 UTC • •
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ThreatCluster •November 10, 2026 at 21:51 UTC
  • •Windows 11 23H2 Enterprise and Education reached end of updates on November 10, 2026.
  • •Organizations are advised to upgrade to Windows 11 25H2 to maintain security updates.
  • •The final update includes security fixes but no further updates will be provided for 23H2.

On November 10, 2026, Microsoft released the final cumulative update for Windows 11 23H2 Enterprise and Education editions, marking the end of updates for these versions. Organizations still using these editions are urged to upgrade to Windows 11 25H2 to continue receiving security updates. The update includes security fixes and non-security updates from the previous month. Devices running Windows 11 23H2 will no longer receive monthly security updates, leaving them vulnerable to new threats. Microsoft is also transitioning Secure Boot certificates for eligible devices. The urgency for organizations to upgrade is emphasized due to the lack of ongoing support for the outdated versions.

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Timeline

2026-11-10
Final update for Windows 11 23H2 released
Microsoft released the last cumulative update for Windows 11 23H2 Enterprise and Education, ending support for these editions.
support.microsoft.com

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Common questions

What happens if I don't upgrade?
Devices running Windows 11 23H2 will no longer receive security updates, increasing vulnerability to threats.
How do I upgrade to Windows 11 25H2?
Eligible devices can upgrade via Windows Update or by using installation media from Microsoft's website.
What security fixes are included in the final update?
The final update includes the latest security fixes and improvements from the previous month's optional preview release.