You can find full information about the update on KVS forum: KVS 4.0.4 update
What's new in 4.0.4:
Bugs that have been fixed:
- Player not working on new Android 9 phones. This issue is critical and affects all KVS versions starting from 3.9.0.
- Push notifications JS file updated as required by advertiser.
- Grabbers plugin will show better progress indicator when grabbing a big set of videos or albums from a single list URL.
- Background tasks that deleted video format or timeline screenshots iterated through all videos and could result in long operation time for slow storage server connection.
- Removed 200 characters limit when configuring storage servers load balancing by countries.