December 12, 2023—KB5033375 (OS Builds 22621.2861 and 22631.2861) - Microsoft Support

The December 2023 security update is now available for Windows 11.

Windows 11 release notes:

Highlights for Windows 11, versions 22H2 & 23H2:

  • Addresses security issues for your Windows operating system
  • Enables Conditional Access (CA) scenarios for Microsoft Defender for Endpoint (MDE)

Reminders:

  • Due to reduced operations during the holidays, there won’t be a non-security preview release this month.
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