May 12, 2026—KB5089548 (OS Build 28000.2113)
Applies To
Windows 11 version 26H1, all editions
Release Date:
5/12/2026
Version:
OS Build 28000.2113
This cumulative update for Windows 11, version 26H1 (KB5089548) includes the latest security fixes and improvements, along with non-security updates from last month's optional preview release.
Visit the Windows release health dashboard for the latest status on this release.
This update includes new features and quality improvements that were part of the following update:
This update addresses security vulnerabilities documented in the following guide:
The following summary outlines key quality improvements addressed by this update. The bold text within the brackets indicates the item or area of the change .
[Connectivity] This update improves the reliability of Simple Service Discovery Protocol (SSDP) notifications to help prevent the service from becoming unresponsive.
[Gaming] This update improves compatibility for some games that use embedded web content and helps reduce the impact of JavaScript errors on in‑game features.
If you've already installed previous updates, your device will download and install only the new updates included in this package.
This release updates the following AI components:
| | | | --- | --- | | AI Component | Version | | Image Search | 1.2603.377.0 | | Content Extraction | 1.2603.377.0 | | Semantic Analysis | 1.2603.377.0 | | Settings Model | 1.2603.377.0...
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