Assetto Corsa Is Obsolete V1163 Is Required Fix Hot Jun 2026

Some modded servers require a specific file. Download the official Steamworks SDK Redistributable (v1.163 compatible) and place steam_api64.dll into your root assettocorsa folder, overwriting the old one.

The permanent solution is to update Custom Shaders Patch to a version that properly recognizes game version 1.16.4. Here's how:

Sometimes Assetto Corsa is fully updated, but the text file that tracks the version number is corrupted. You can fix this manually.

Did this error start appearing after installing a ? assetto corsa is obsolete v1163 is required fix hot

He didn't waste a second. He loaded the track. The asphalt looked sharper, the shadows deeper. He pushed the Supra into the first corner, the tires screaming at the edge of the new physics limit. He wasn't just racing against the clock anymore; he was racing against the obsolescence of the machine itself.

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A checksum mismatch occurs when a file on the client PC and on the server are not identical. This is particularly common after game updates. When players get this error, the most frequent cause is that a recent Assetto Corsa update has not been applied to either the client or server. Some modded servers require a specific file

The core issue is a version mismatch between your base game and some of its popular third-party modifications.

"Obsolete?" Kael whispered, his grip tightening on his direct-drive wheel. "I was just on the Nordschleife an hour ago."

This is a community-made, comprehensive mod that almost every modern Assetto Corsa player uses. It massively overhauls the graphics, physics, and weather, and is essential for running many of the game's most popular car and track mods. It is managed through a separate launcher called . Here's how: Sometimes Assetto Corsa is fully updated,

The steps are the same as above for locating your Assetto Corsa folder. Once you are there:

: Go to assettocorsa\content\cars or \tracks and delete the offending mod folder.

Here is the direct to resolve this issue immediately.

If an update is available, install it and restart the application. Phase 3: The Custom Shaders Patch (CSP) Fix