v1.2.1 Update Details
A patch has been applied to address the "security vulnerability in games and applications built with Unity version 2017.1 and later," which was announced by Unity Technologies on October 3, 2025.
v1.2.1 Update: Addressing Unity Engine Security Vulnerability
Build and release context
Steam update times within 24 hours of this post. Matching dates do not confirm which build it describes.
Build 20759111 · public branch
Steam updated · First observed