A new patch for the PlayStation 4 version of Battlefield 4 is rolling out today with the intention of improving stability and reducing save file corruption, among a handful of other problems, according to a post on Battlelog.
In addition to tweaking general stability "that should remove a large amount of the client crashes" frequently occurring for PS4 users, the patch will also reduce the probability of save files becoming corrupted by preventing the saves from occurring while quitting multiplayer.
The patch will also fix ambient sound audio drop issues occurring on large maps, including the Golmud Railway map in Conquest mode while 64 players were present. Blur effects on soldiers appearing while Commanders use EMP attacks have also been fixed and solutions for crashes occurring during round transitions, when destroying vehicles and while using BattleScreen are being issued. Minor terrain destruction issues have also been rectified.
The post notes that players may have to restart Battlefield 4 in order to have the update install. Further updates on persisting issues can be followed on the Battlefield 4 Top Issue Tracker.