Microsoft Windows 11 26H1 Update Version Windows 11, version 26H1
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Update Summary
Windows 11, version 26H1 is for new devices with select silicon starting early 2026. Microsoft says devices on earlier Windows 11 versions will not be offered 26H1 through Windows Update or as an in-place upgrade.
Update Details
Security
- Installing the latest update also includes all previous updates, including important security fixes.
New Features
- Supports device innovations expected in 2026, with newer silicon for better performance and longer battery life.
Known Issues
- Microsoft is not currently aware of any issues with this update.
Hints
- Available only on new devices with select new silicon starting early 2026.
- Devices running earlier Windows 11 versions will not be offered an update to version 26H1 through Windows Update.
- Version 26H1 cannot be installed as an in-place update on existing devices.
- To check the installed version, go to Start > Settings > System > About or run
winver.
Product Information
Vendor: Microsoft
Product: Windows 11
Product type: Software
Application category: Utilities
Platform: Windows
Variant: 26H1
Version: Windows 11, version 26H1
Vendor release date: Aug 29, 2026
Original release notes: View on vendor site
Published on updatealert.io: Aug 29, 2026
Description: Client operating system for modern desktop and enterprise environments.