Windows 11 · 26H2 · Release Preview
Windows 11, version 26H2 (26300.9911)
- Release Preview
- amd64
Windows 11 26H2: Current annual release; availability depends on device eligibility and rollout
Microsoft release information · Verified Nov 10, 2026
AI summary
Windows 11, version 26H2 (build 26300.9911) is identified here as a Release Preview build. The matching Microsoft update notes describe security improvements but give no specific feature changes for this build. (support.microsoft.com)
Generated from the package's release notes and forum coverage. Verify against Microsoft's release-health page before acting on it.
Known issues — reported on the forum
No problems reported on the forum for this build yet. Threads that name 26300.9911 and describe a fault appear here automatically.
In the news
- Coverage CVE-2026-105582: Windows DWM Core Library Elevation of Privilege Vulnerability
- Coverage Windows 11 26H2 Beta Rebuilds Search with Quick Settings Actions
- Fix Windows 11 26H2 Settings Backup: Default-On Policy, ESR Management and Restore Summary
- Coverage Windows 11 26H2 Beta Build 26320.9876 Adds New Search and Windows Hello Low-Light Sign-In
Discussed on the forum
No member thread names 26300.9911 yet.