For each version released, a change log is available on the PixelExperience homepage
https://download.pixelexperience.org/alioth
Version: PixelExperience_alioth-12.1-20220624-0151-OFFICIAL.zip
PixelExperience changes:
- June security patch
- Updated translations
- Fixed video playback issues on some devices
- Fixed styling issues on DocumentsUI
- Fixed location indicator showing when no apps running
- Fixed app font on Pixel Launcher
- Other minor issues have been fix
Device changes:
- Switched to ArrowOS kernel
- Kernel updated to 4.19.246
*Hotfix*
- Fix status bar icons being too close to the top of the screen