Assetto Corsa Is Obsolete V1.16.3 Is Required Patched Jun 2026

Find the version number at the very top (it may say 1.16.4 ). Change it to and save the file. Restart Content Manager . Secondary Fixes

At its core, the error message is a version mismatch alert. Many of the game's most essential mods, including the transformative Custom Shaders Patch, were built with a specific version of the game in mind. The official CSP page lists its core requirements as having "Installed Assetto Corsa v1.16.3/4 (64-bit only)". These mods, which are now the standard for the modern AC experience, rely on the stability and features introduced in these specific updates. Content Manager, the essential third-party launcher for Assetto Corsa, also utilizes the game's version data to ensure a stable connection with the game's executable files. When a discrepancy is found, it triggers the alert to prevent conflicts and crashes during the launch sequence.

If you see this error, don't uninstall. Download , let it handle the version switching, and enjoy the version of Assetto Corsa that the community perfected—because the developers sure didn't make the game this good on their own.

: Steam occasionally rolls out minor updates (such as shifting the game version internally from 1.16.3 to 1.16.4 ). Older versions of Content Manager fail to recognize 1.16.4 as a newer version, incorrectly flagging it as obsolete. assetto corsa is obsolete v1.16.3 is required

You try to join a multiplayer server or launch a new mod in Assetto Corsa. Instead of loading the track, the game crashes or kicks you back to the menu. A frustrating error message pops up:

: In many cases, this is purely a visual bug. If your game still launches and runs correctly through Content Manager, you can safely ignore the error. Edit the Changelog (Most Effective) :

If players can’t join your lobby, the version mismatch is usually within the mods, not the game client. Find the version number at the very top (it may say 1

is a third-party launcher that completely overhauls the game's interface, offering faster loading times, extensive mod management features, and a level of customization far beyond the original game's menus. It has become the default way for almost all serious AC players to launch and manage their game.

Find the very first version number listed at the top. If it says 1.16.4 , change it back to and save the file.

There is a dark side to "v1.16.3 is required." Some low-effort modders use this error as a fake DRM. Secondary Fixes At its core, the error message

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

Look at the top right corner for a green circle or notification icon. Click it to check for updates.

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

Fully close (Click Steam in the top left corner > Exit ).

Ensure no folders leading to assettocorsa contain accent marks, cyrillic characters, or specialized symbols.