: Older versions of the Custom Shaders Patch were hard-coded to look specifically for "1.16.3." If it sees anything else—even a newer version—it flags the game as "obsolete". Top 3 Ways to Fix the Error 1. The "Changelog" Text Trick (Most Effective)
Click . This will force Steam to download any missing v1.16.3 components. Essential Links for Assetto Corsa Users assetto corsa is obsolete v1163 is required link
If you are seeing a message stating in Content Manager or when trying to run the Custom Shaders Patch (CSP), it can be incredibly frustrating. This error typically appears after a small game update that Content Manager doesn't yet recognize, or due to a mismatch in how your game's version is logged. : Older versions of the Custom Shaders Patch
If you haven't updated your mods in a while, installing the latest "Recommended" or "GitHub" version of CSP often resolves the check entirely. Open Content Manager. Go to > Custom Shaders Patch > About & Updates . This will force Steam to download any missing v1
If your game actually is missing files or stuck on an old version, use Steam's built-in repair tool. Right-click Assetto Corsa in Steam . Go to > Installed Files .
: You can also simply rename changelog.txt to changelog.txt.bak or delete it entirely, as CSP will often stop complaining once the file is gone. 2. Update Your Custom Shaders Patch (CSP)
If you are performing a clean install to fix this, ensure you use these official sources: