Today I pushed a new version, which actually only fixes a bug in the MEGA65 interpreter. If you're playing on a different system, you don't need to updated to the latest version. I mean... you can but there's no benefit for you in doing so. For the MEGA65 community on the other hand I strongly recommend doing the update as there was a problem when restoring a saved game sometimes. Thanks to RetroCombs and Edilbert aka BitShifter for their assistance and support!