Microsoft Windows 11 26H1 Update Version OS Build 28000.2113
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Update Summary
KB5089548 updates Windows 11, version 26H1 to OS Build 28000.2113 with the latest security fixes, non-security improvements from prior preview releases, and servicing stack updates. It also improves SSDP reliability and game compatibility. Reference IDs: KB5083768, KB5083806, KB5092761.
Update Details
Security
- Includes the latest security fixes and addresses security vulnerabilities documented in the May 2026 Security Updates guide.
Bug Fixes
- Improves the reliability of Simple Service Discovery Protocol (SSDP) notifications to help prevent the service from becoming unresponsive.
- Improves compatibility for some games that use embedded web content and reduces the impact of JavaScript errors on in-game features.
Known Issues
- Microsoft is not currently aware of any issues with this update.
Hints
- If previous updates are already installed, only the new updates in this package will be downloaded and installed.
- Includes non-security updates from KB5083768 and KB5083806.
- Includes Windows 11 servicing stack update KB5092761 for OS Build 28000.2103.
Links
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KB5089548 release notes
https://support.microsoft.com/help/5089548
Product Information
Vendor: Microsoft
Product: Windows 11
Product type: Software
Application category: Utilities
Platform: Windows
Variant: 26H1
Version: OS Build 28000.2113
Vendor information published: May 12, 2026
Original release notes: View on vendor site
Published on updatealert.io: Jun 3, 2026
Description: Client operating system for modern desktop and enterprise environments.