1.21.10b
Release build - 1.21.10b (2026-07-29)
Changed 1
- Updated Firefox to 153.0.1
Fixed 7
- Fixed various performance issues, RTX Super Resolution not working, and HDR video playback not working on Windows
- Fixed extra divider when urlbar has no results
- Fixed boost applying wrong size override
- Fixed crashes and hangs when creating new spaces
- Fixed non-tab drags allowing to switch Spaces
- Fixed essential tab reordering not working at maximum capacity
- Fixed compact sidebar activation at right screen edge
Zen Stable Release
New Features
- Updated Firefox to 153.0.1
Fixes
- Various performance fixes, RTX Super Resolution not working, and HDR video playback not working on Windows (#14292)
- Fixed extra divider when urlbar has no results (#14717)
- Fix boost applying wrong size override (#14461)
- Fixed crashes/hangs when creating new spaces (#14713)
- Fixed non-tab drags allowing to switch Spaces (#14724)
- Fixed essential tab reordering not working at maximum capacity (#14726)
- Fixed compact sidebar activation at right screen edge (#14409)
- Other bug fixes and improvements.