Project Zomboid 42.22.1 pre-release hotfix fixes a certificate vulnerability and adds Java integrity checks
The Indie Stone's Project Zomboid 42.22.1 pre-release hotfix fixes a certificate vulnerability and adds Java Runtime Environment integrity checks.

The Indie Stone has released the 42.22.1 pre-release hotfix for Project Zomboid on PC. It’s a small, behind-the-scenes update focused on security and housekeeping rather than new gameplay.
The developer says the update shouldn’t break saves. If you hit a bug, it asks you to confirm you can reproduce it on a fresh save with no mods installed before reporting it.
Technical and debug changes
- Fixed a vulnerability related to eMudhra digital certificate validation.
- Added integrity checks for the Java Runtime Environment (JRE). If something has modified it, the change will show up in the version watermark.
- Updated the third-party software licence acknowledgements in the credits and licence documentation.
Discussion of the update is pinned on the Project Zomboid discussion forums, according to The Indie Stone.


