An update was pushed out that makes some minor changes to the English build of the game.
Update Notes for Sep 23
Build and release context
Steam update times within 24 hours of this post. Matching dates do not confirm which build it describes.
Build 12263374 · public branch
Steam updated · First observed
Recorded Steam release date:
Within one calendar day of this post (UTC). The listed date does not establish an exact launch time.