Windows 11 Build 27950 is now available to Insiders in the Canary channel. It doesn't include new features, and comes with bugfixes only.
Recently, the branch name from which builds are released changed to BR_RELEASE. This is due to internal operating system development cycles. The Windows Insider team treats these builds the same as builds from the RS_PRERELEASE branch. However, due to the branch change, some features have been temporarily removed from Windows 11 Insider builds. Microsoft plans to bring them back in the future. BR_RELEASE builds do not represent any feature update for Windows 11.
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Changes and improvements
General
- This update includes a small number of improvements and fixes designed to improve the overall operating system experience.
Settings
- After updating to this build, the "Advanced options" page in the "System" section will temporarily be replaced by the old "For developers" page. The new page is expected to return in future updates.
Fixes
General
- Fixed an issue resulting in some Insiders experiencing a system rollback when attempting to install the latest build with errors 0xC1900101-0×20017 or 0xC1900101-0×30017.
Taskbar and system tray
- Fixed an issue that could cause the application thumbnail on the taskbar to shift (away from the icon the cursor hovers over) after changing the screen resolution.
File Explorer
- Fixed an issue where interacting with the context menu in File Explorer could cause the main window area to become unresponsive to mouse clicks.
- Fixed an issue that could cause some applications to freeze when opening the Open or Save dialog.
- Fixed an issue where, when installing some applications, right-clicking the context menu could switch between the standard view and the "Show advanced options" mode.
Graphics
- Fixed an issue resulting in some Insiders experiencing screen flickering when using the browser (and possibly other scenarios) in recent Canary builds.
Audio
- Fixed an issue where some users may have experienced no sound after installing the latest builds. However, audio issues can have various root causes. If you continue to experience issues, please submit feedback through the Feedback Hub.
Dynamic Lighting
- Fixed an issue with the Dynamic Lighting feature where the Dynamic Lighting Background Controller would sometimes create excessive CPU usage after unlocking the device.
Other
- Changes have been made to improve system performance when using the Game Bar and other overlays on top of a running game. This improvement may be particularly noticeable for users with multiple monitors with different refresh rates.
Known issues
General
- Working to fix an issue where some Insiders on ARM64-based PCs are experiencing a bug check with the IRQL_NOT_LESS_OR_EQUAL error.
For developers
- The PIX utility on Windows cannot play GPU recordings on this OS version. This issue will be resolved in the next PIX release, expected by the end of September. If necessary, you can contact the developers on the DirectX Discord server to obtain private builds of the utility.
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