Assetto Corsa Is Obsolete V1163 Is Required Fix

Modded leagues like ACFL (Formula 1 mods) or old SRS plugins sometimes use custom anti-cheat DLLs that specifically look for a hex-edit hash of acs.exe . If you have a legitimate v1.16.3 but the anti-cheat expects a modified one, you get the obsolete error.

Click on in the left sidebar, then select General . Look for the Check for updates button. assetto corsa is obsolete v1163 is required fix

This error appears deceptively simple but can be a nightmare to troubleshoot. It prevents you from joining online races, locks you out of leagues, and makes it seem like your game is permanently broken. Modded leagues like ACFL (Formula 1 mods) or