Here is a summary of what's new in Windows 11 Insider Preview Build 27902 (Canary Channel), based on the official announcement:
Major Points
Changes and Improvements
The build brings a small set of improvements and fixes to enhance the experience for Insiders.
Fixes
File Explorer: Fixed an issue where view changes (such as icon positions and sizes) might not persist, causing desktop icons to reset.
Camera: Fixed an issue where the Camera app could freeze after switching between front and back cameras on some PCs.
Known Issues
IMPORTANT for Copilot+ PCs: Joining Canary Channel from another branch (Dev, Release Preview, or retail) may cause loss of Windows Hello PIN and biometric sign-in, giving error 0xd0000225. You can fix this by recreating your PIN.
Bugchecks: Some users may experience repeated bugchecks ("KERNEL_SECURITY_CHECK_FAILURE") after upgrading, especially when connecting to VPN.
Blast from the past: This build temporarily plays the Windows Vista boot sound instead of the Windows 11 boot sound. This will be fixed in a future build.
Settings: The Settings app might crash when interacting with options under System > Power & Battery, and some apostrophes may display as random characters.
Remote Desktop: Severe graphical distortion and rendering issues may occur using Remote Desktop on ARM64 PCs.
Notes for Insiders (Reminders)
Canary Channel builds are very early platform builds not tied to any specific Windows release; features may come, go, or never ship in retail.
Features are rolled out to subsets of users first, using "Control Feature Rollout" (CFR) technology.
Some features may show up in other Insider channels first.
Some features may not be fully localized; report any language/translation issues you see.
To leave the Canary Channel, a clean install of Windows 11 will be required.
A desktop watermark is normal for these pre-release builds.