February 13, 2024—KB5034765 (OS Builds 22621.3155 and 22631.3155) - Microsoft Support

The February 2024 security update is now available for Windows 11.

Windows 11 release notes:

• Version 22H2 & 23H2 (KB5034765): https://support.microsoft.com/en-us/help/5034765
• Version 21H2 (KB5034766): https://support.microsoft.com/en-us/help/5034766

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

• Addresses security issues for your Windows operating system
• Addresses an issue that affects Narrator announcements. They are slow when you use Natural Voices.
• Addresses an issue that affects explorer.exe. It might stop responding when you restart or shut down a PC that has a controller accessory attached to it.
• The Copilot in Windows icon will appear on the right side of the system tray on the taskbar. Also, the display of Show desktop at the rightmost corner of the taskbar will be off by default.

The update includes improvements that were part of KB5034204 (released on January 23) https://prod.support.services.microsoft.com/en-us/help/5034204

Highlights for Windows 11, version 21H2

• This update addresses an issue that affects remote direct memory access (RDMA) performance counters. They do not return networking data on VMs in the right way.
• This update addresses an issue that affects fontdrvhost.exe. It stops responding when you use Compact Font Format version 2 (CFF2) fonts.

Reminders:

• After February 2024, there are no more optional, non-security preview releases for Windows 11, version 22H2