If you are a sim racer who enjoys modded content for Assetto Corsa, you have likely encountered one of the most infamous and confusing error messages in the community: “Assetto Corsa is obsolete – v1163 is required” (often accompanied by a missing or broken link).
This error typically appears when trying to join a multiplayer server, launching a specific modded career mode, or running custom shaders through Content Manager. It can be frustrating, especially when you are sure you updated the game through Steam.
In this long-form article, we will break down exactly what this error means, why it happens, how to fix it step-by-step, and most importantly—what the “required link” refers to.
Since its release, Assetto Corsa has seen numerous updates, each aimed at improving the game's performance, adding new features, and expanding its content. These updates have included new cars, tracks, and game modes, among other enhancements. The community has also played a significant role in the game's longevity, with many talented modders creating custom content that has significantly enriched the gaming experience.
If the user utilizes the popular "Content Manager" (CM) plugin: