The most effective way to remove this message is to manually change the version number in your game files so that the software recognizes it. Navigate to your Assetto Corsa root installation folder (usually located at C:\Program Files (x86)\Steam\steamapps\common\assettocorsa Find the file named changelog.txt changelog.txt with a text editor like At the very top of the file, you will likely see a line for Change the text and save the file. Content Manager . The "obsolete" message should now be gone. Alternative Solutions
This is the most reliable manual bypass. It tricks Content Manager into seeing the version it expects without actually changing any game files. assetto corsa is obsolete v1163 is required fix
Here is the conflict:
You might be asking, "Why do I have to downgrade? I want the latest version." The most effective way to remove this message
Certain versions of CSP (specifically versions 0.1.78 and 0.2.0) have bugs that misreport your game version to servers. Try rolling back to CSP or disabling CSP entirely for online racing. The "obsolete" message should now be gone