A bug related to the flying of aircraft in ground battles, where aircraft guns would be in an overheated state when spawning, has been fixed (source).

Some rare errors related to the game lagging/hanging have been fixed.

The current provided changelog reflects the major changes within the game as part of this Update. Some updates, additions and fixes may not be listed in the provided notes. War Thunder is constantly improving and specific fixes may be implemented without the client being updated.