Warning: This may overwrite some manual UI mods, so back up your root folder if you've customized it heavily. Does this happen with a specific car or just when you turn on
Assetto Corsa is Obsolete: How to Fix the "v1.16.3 is Required" and "Extra Quality" Errors Warning: This may overwrite some manual UI mods,
Sometimes the "obsolete" error is real if Steam failed to install a patch correctly. Right-click Assetto Corsa Properties Installed Files Verify integrity of game files 3. Essential Prerequisites Warning: This may overwrite some manual UI mods,
Verify integrity: