Assetto Corsa Is Obsolete V1.16.3 Is Required Fix

launcher and recent Steam updates. Despite the error message, your game is likely up-to-date (typically v1.16.4) than what the mod expects. Quick Fix: Edit the Changelog

: Look at the very top entry. If it says 1.16.4 or 1.16 , change it to exactly 1.16.3 . assetto corsa is obsolete v1.16.3 is required fix

If the error persists, you may need to clear CM's temporary data. launcher and recent Steam updates

Some mods have their own internal version check written into encrypted Lua scripts. The mod creator may have locked it to a specific CSP version, not just the AC version. not just the AC version.