To fix the error Assetto Corsa is obsolete (v1.16.3 is required)" you don't actually need to downgrade your game . This error usually occurs because Content Manager (CM) Custom Shaders Patch (CSP)
The most effective and common fix is to manually tell the game it is running the correct version by editing its internal text file.
If non-Western characters exist, move your Steam library or rename the containing folder to use standard English alphanumeric characters.
The " Assetto Corsa is obsolete (v1.16.3 is required)" error typically occurs because a recent minor update (to v1.16.4) caused a version mismatch in Content Manager (CM) or Custom Shaders Patch (CSP).
If it says 1.16 or 1.16.4 , manually change it to exactly 1.16.3 . the file and restart Content Manager. Alternative Fixes assetto corsa is obsolete v1163 is required fix
is a common bug where Content Manager (CM) or the Custom Shaders Patch (CSP) fails to recognize a recent minor update from Kunos. Paradoxically, your game is likely version 1.16.4, which is
Corrupted or missing system files frequently trigger version mismatches. Steam can automatically scan and replace these broken files. Completely close and Steam . Relaunch Steam as an Administrator. Navigate to your Library and right-click Assetto Corsa . Select Properties , then click the Installed Files tab. Click Verify integrity of game files .
Click on the address bar at the top of your Windows File Explorer window.
In this case, the solution is:
To properly configure CM for v1163:
This comprehensive guide will help you understand why this happens and walk you through step-by-step methods to fix it. Why Are You Seeing This Error?
Follow these steps in order to resolve the error. Most users find success within the first two methods. 1. Verify Integrity of Game Files (Most Likely Fix)
Absolutely not. Even with the release of in 2025, the original Assetto Corsa is far from dead. To fix the error Assetto Corsa is obsolete (v1
If you’ve recently tried to join an online server in , you might have been met with a frustrating pop-up: "Assetto Corsa is obsolete. Version 1.16.3 is required."
If you installed the game on an external drive or secondary SSD, click and manually navigate to the correct assettocorsa folder containing the acs.exe file. 4. Run Content Manager and Assetto Corsa as Administrator
Right-click , select Manage , and click Browse local files .
If you are a dedicated Assetto Corsa racer, especially one utilizing Content Manager and Custom Shaders Patch (CSP), you may have encountered the frustrating error message: . The " Assetto Corsa is obsolete (v1
Navigate to your (usually SteamLibrary\steamapps\common\assettocorsa ). Locate the file named changelog.txt . Open it with Notepad.
