This error usually pops up in Content Manager (CM) because of a minor version mismatch between your game files and what the Custom Shaders Patch (CSP) expects. Even though you likely have v1.16.4 (the latest Steam version), CM sometimes gets confused and thinks it's "obsolete" because it's looking for v1.16.3 .
Navigate to your Assetto Corsa root folder (usually steamapps\common\assettocorsa). Open the file named changelog.txt .
Step 5: The Config Check (The Forgotten Fix)
If the error persists, the issue is not the EXE but a corrupt track/car config.
Disable Incompatible Settings: Go to Settings > Custom Shaders Patch > Extra Brightness. If you are using "Pure" or "Sol," ensure "Modify brightness" is handled by the weather script, not CSP, to avoid conflicts.
Step 2: Force Steam to Download v1163 (The Clean Fix)
Even if Steam says you are up to date, force a verification:
If you have a paid "Preview" version (for rain/extra features), ensure you have manually installed it by dragging the zip into CM. 2. Verify Game Integrity
He clicked Drive.
through Content Manager (CM) and were hit with a red error claiming your game is "obsolete" and requires version 1.16.3, you aren't alone. This confusing message often appears even if your Steam version is actually 1.16.4—a newer release.
" in Content Manager (CM) is typically a version-detection bug that occurs when the Custom Shaders Patch (CSP) fails to recognize your game version. Quick Fix: Edit the Changelog