While larger updates like introduced massive features such as the Dragon Ball Card Warriors mini-game, the 1.03.1 update is more specialized. It focuses on the technical "under-the-hood" improvements necessary for a seamless Action-RPG experience:
The "Card Warriors" mode was the major new feature added in the surrounding updates (part of the Season Pass/Power Through Time DLC). Version 1.03.1 specifically addresses game-breaking bugs within this mode: