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:

• Version 22H2 & 23H2 (KB5033375): support.microsoft.com/help/5033375
• Version 21H2 (KB5033369): support.microsoft.com/help/5033369

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.