Microsoft has released Patch Tuesday updates for Windows 11 24H2, 23H2, and 22H2. The 24H2 update is provided via KB5063878, while the 23H2 and 22H2 updates are delivered via KB5063875. You will be on builds 26100.4946 on 24H2, 22631.5768 on 23H2, and 22621.5768 on 22H2, respectively, after applying the updates.
The changelog for KB5063878 is given below:
Highlights
- This update addresses security issues for your Windows operating system.
Improvements
This security update contains fixes and quality improvements from KB5062660 (released July 22, 2025). The following summary outlines key issues addressed by the KB update after you install it. Also, included are the available new features. The bold text within the brackets indicates the item or area of the change.
- [Authentication] Fixed: This update addresses an issue that caused delays during sign-in on new devices. The delay was due to certain preinstalled packages.
Microsoft says there are no known issues on either.
These updates will be available from Windows Update and should install automatically in most cases. If you would like to download these updates for offline installation, you can get them from the Microsoft Catalog website. You can find the update for 24H2 here, and for 23H2/22H2 here.