The latest update resulted in a 0.71-star decline in average ratings on iOS, dropping from 4.16 to 3.45. While the release targeted display and platform compatibility, users report critical regressions in server connectivity and missing in-car streaming support. The overall impact is negative due to the loss of core functionality.

Version 4.0.2:
- Fixed wrong cover art is sometimes shown in player or table cells
- Fixed missing Player and Equalizer icons on iOS 13

Version 4.0.1:
- Fixed crash when sharing app logs
- Improved visibility of Jukebox mode
- Fixed a few small user interface issues in Settings

Version 4.0.0:
- Fully compatible with iOS 14 including Dark Mode
- Native support for all of the latest devices and screen sizes
- Fixed all reported crashes after extensive public beta testing
- Lots of little fixes and improvements
- Updated the internals to bring everything up to the latest iOS standards so that iSub will continue to function well on new iOS releases for many years to come