This error is highly common for PC sim racers, especially those who heavily mod their game. The good news is that your game files are rarely broken. This issue is almost always a communication breakdown between Steam, Content Manager, and your Custom Shaders Patch (CSP) installation.
In Content Manager, go to > Custom Shaders Patch > About & Updates .
How to Fix the "Assetto Corsa is Obsolete: v1.16.3 is Required" Error assetto corsa is obsolete v1163 is required fix hot
If you use Content Manager (CM) to launch Assetto Corsa, an outdated CM build can trigger false version mismatches. Launch . Click on Settings in the top-right corner. Select the Content Manager tab, then click General . Look for the Check for updates button. Update to the latest stable or untested build.
Preventive measures
Does this happen on or just specific modded ones? I can provide step-by-step guidance based on your setup. Share public link
If you cleared the obsolete error but your game crashes with a screen when loading a track, a mod component is broken. After Install Car Mod :: Assetto Corsa Discussões gerais This error is highly common for PC sim
If you encounter these symptoms, you'll need to take action rather than just ignoring the error.
Select the latest recommended version or click if it's missing. Verify Game Files Ensure your base game isn't actually corrupted. Open Steam Library . Right-click Assetto Corsa > Properties > Installed Files . Click Verify integrity of game files . Reset Content Manager In Content Manager, go to > Custom Shaders
If the text edit does not resolve the issue, consider these steps: Verify Integrity Steam Client
The most reliable and community-verified solution is to directly edit the changelog.txt file. This file is found in your main Assetto Corsa installation folder (the same folder that contains the assettocorsa.exe file).