This conflict often arises just after the base game has been updated via Steam, particularly during small hotfixes that increment the version number but don't fundamentally alter the core game files the CSP relies on. This is why the game itself continues to run perfectly; the CSP just hasn't been updated by its developer to include the new version in its approved list.
If the above doesn't work, right-click Assetto Corsa in your Steam Library, go to , and select Verify integrity of game files . Manual CSP Reinstall:
Sometimes, the issue is with an unstable or preview version of CSP. The official recommendation for stability is to use the of CSP, not the latest. assetto corsa is obsolete v1.16.3 is required fix
The "Assetto Corsa is obsolete v1.16.3 is required" error is just a sign that your simulation is ready for a refresh. By forcing a Steam update and keeping your Custom Shaders Patch updated in Content Manager, you will resolve this issue instantly.
Leo sighs. He’s seen this a hundred times. Steam auto-updated her game to a later "final" patch that broke more than it fixed. The 1.16.3 requirement isn’t just a version number — it’s a key . Without it, the server’s handshake protocol fails. No cars load. No laps count. This conflict often arises just after the base
Don’t let a version check end your hotlap. One number stands between you and tire smoke at 200 km/h.
Once done, launch the vanilla game (not Content Manager) once, just to confirm it works. Then close it. Manual CSP Reinstall: Sometimes, the issue is with
Sometimes the error occurs because an older version of CSP doesn't understand newer game builds.
: The Custom Shaders Patch (CSP) relies on precise hooks within the game's executable files. If those links break during an automatic installation or a server check, the system defaults to this legacy error template. Step-by-Step Fixes 1. Update Content Manager and Force a Re-check
If the path is different, click and select the correct folder.
You can resolve this error using one of the following methods, ranked from simplest to most thorough: Installed Custom Shaders Patch is obsolete - OverTake.gg