Official updates typically follow standard numbering, such as:
The Dragon Ball Z Kakarot Update v1.031 Codex Exclusive is arguably the definitive way to experience the base game and first season pass if you are playing offline. It resolves annoying technical debt—from the memory leak in the tournament mode to the Ki-blast collision bugs—that official patches neglected for months. dragon ball z kakarot update v1031codex exclusive
CODEX was a prominent warez group known for cracking video games, effectively bypassing their digital rights management (DRM) protection (such as Denuvo or Steam DRM). In the context of the title you posted, this refers to a cracked executable file that allows the game to be played without an official license. General Information on Game Updates