This is a tiny update that just contains a fresh build of the game from the lastest version of Unity, thereby closing the possible security hole CVE-2025-59489 discovered in the Unity engine. There is no evidence that this bug has been exploited, and now it never will be.
Hotfix 1
Source: Steam Community (opens in a new tab)
Build and release context
Steam update times within 24 hours of this post. Matching dates do not confirm which build it describes.
Build 20366976 · public branch
Steam updated · First observed