Users often add custom launch parameters (e.g., for Content Manager or third-party launchers) which may conflict with version checks.
Navigate to your (usually steamapps\common\assettocorsa ). Locate the file named changelog.txt . Open it with Notepad. assetto corsa is obsolete v1163 is required link
This report addresses the common client-side error message encountered when launching Assetto Corsa: This error typically occurs when a user attempts to join an online server or launch the game with a version mismatch. It indicates that the local game version does not match the required version (v1163) established by the server or the current Steam branch. Users often add custom launch parameters (e
: Minor updates, such as the addition of promotional cars or esports events (e.g., Ferrari Esport events), can bump the version number without changing core files, causing this software "confusion". Troubleshooting Checklist changelog.txt fix does not work, try these steps: Open it with Notepad