Assetto Corsa Is Obsolete V1.16.3 Is Required: __full__
Even though the base game was officially released back in 2014, the introduction of tools like and Custom Shaders Patch (often paired with the Pure weather script) has kept Assetto Corsa at the forefront of PC simulation racing.
You have CSP installed, but it is the wrong preview version. For example: You are running CSP 0.2.4-preview, but the server requires CSP 0.1.80 (which reports as 1.16.3). Because the shader patch alters network packets, a mismatch causes a de-sync, flagged as an "obsolete client."
Go to Settings → Content Manager → General – ensure the game path points to the correct Steam installation.
By understanding the distinction between a harmless parser error and a critical multiplayer lockout, you'll be well-equipped to diagnose and fix the issue. So fire up Content Manager, join that server, and enjoy one of the most realistic and expansive racing simulators ever created. The track is waiting. assetto corsa is obsolete v1.16.3 is required
Find the very first version number listed at the top. If it says 1.16.4 , change it back to and save the file.
Because the Custom Shaders Patch was specifically coded to look for v1.16.3, it sees v1.16.4 and assumes your game is "obsolete" or unrecognized, even though you technically have a How to Fix the "Obsolete" Error
If players can’t join your lobby, the version mismatch is usually within the mods, not the game client. Even though the base game was officially released
In many cases, this error is purely cosmetic and does not prevent the game from running. You can often proceed with your race unless the game actually crashes. Additional Troubleshooting
Have you fixed the "v1.16.3 is required" error using version spoofing, or did you downgrade your Steam build? Let us know in the comments below.
Here is the exact breakdown of why this error happens and the step-by-step methods to fix it. 🔍 Why Are You Seeing This Error? Because the shader patch alters network packets, a
The days of browsing the in-game server list are gone. Modern leagues and casual servers use Content Manager to instantly download required tracks and cars to join races. 4. How to Modernize Your Assetto Corsa To stop using the obsolete version, follow these steps:
A recent mod installation broke the core version verification files.
Even if it looks correct, click and manually re-select your main Assetto Corsa installation folder (usually found under Steam\steamapps\common\assettocorsa ). 5. Update or Reinstall Custom Shaders Patch (CSP)
is obsolete. (V1.16.3 is required)" , you are likely a PC user attempting to run Assetto Corsa using or the Custom Shaders Patch (CSP) . Despite the confusing phrasing, this error usually occurs even when you are already running the latest version of the game. Why This Error Occurs
