KB5077231


Microsoft has released cumulative update KB5077231 for Windows 11, version 25H2 for insiders on the Beta channel – Windows 11 Insider Preview Quality Update (26220.7872). Beta channel users will now receive Windows 11, version 25H2 updates, which are available via the enablement package KB5066383 (build 26220.xxx).

Installation is done through Windows Update: go to Settings > Windows Update and click Check for updates. A computer restart is required to complete the installation.

The Windows Insider Program Beta channel is intended for testing features and improvements that are closer to the final release and are based on Windows 11 version 25H2. Many features in the Beta channel are rolled out using Control Feature Rollout technology: they first become available to a limited number of insiders, after which their distribution gradually expands as feedback and stability are analyzed.

Features and capabilities included in Beta channel builds may change during testing, be removed, or never make it to the final release. Microsoft uses this channel to test near-final concepts and gather feedback. Some of these features may appear in future versions of Windows when fully completed.

Also, some features under active development may be temporarily unavailable or not fully localized in all languages. Localization will be refined as development progresses. If you notice translation issues, report them through the Feedback Hub.

Feature / Change Performance Increase or Decrease Optimization PC Speed Gaming Optimization
Context menu icon for .exe, .bat, .cmd ⚪ No measurable impact 🟢 Minor UI consistency optimization ⚪ No impact ⚪ No impact
Settings – Device Information Card ⚪ No measurable impact 🟡 Minor navigation optimization ⚪ No impact ⚪ No impact
Settings – About System section ⚪ No measurable impact 🟡 Minor information accessibility optimization ⚪ No impact ⚪ No impact
Taskbar and system tray hover animations 🟢 Negligible to slight positive (smoother rendering) 🟢 Minor animation optimization 🟢 Slightly smoother UI interaction ⚪ No direct impact

Official announcement on the Microsoft website.

The last 10 Windows updates:

Update Build Version Windows Channel Date
KB5126657 19045.7807 22H2 (ESU) Windows 10 Stable 2026-10-13
KB5126653 22631.7652 23H2 Windows 11 Stable 2026-10-13
KB5127646 28000.3231 26H1 Windows 11 Stable 2026-10-13
KB5127648 26300.9711 26H2 Windows 11 Stable 2026-10-13
KB5127757 28120.3181 26H1 Windows 11 Experimental 2026-10-07
KB5127758 26220.9606 25H2 Windows 11 Beta 2026-10-07
KB5127754 28020.3172 26H1 Windows 11 Beta 2026-10-07
KB5127753 26340.9616 26H2 Windows 11 Experimental 2026-10-07
KB5124192 28120.3151 26H1 Windows 11 Experimental 2026-10-02
KB5124196 28020.3142 26H1 Windows 11 Beta 2026-10-02