Assetto Corsa Is Obsolete V1.16.3 Is Required Jun 2026

is obsolete (v1.16.3 is required)" is a confusing ghost from the past that suddenly haunts a modern setup. This error typically appears within or the Custom Shaders Patch (CSP) settings. While it sounds like your game is ancient, the reality is often the opposite: your game is actually too new for the mod's current detection logic. Why the Error Happens

Steam uses "appmanifest" files to track versions; if these are out of sync, CM may believe your installation is "obsolete" even if it is technically current. assetto corsa is obsolete v1.16.3 is required

If you check your Steam properties, the final public build of Assetto Corsa (including all DLC) is (or v1.16.3 for some legacy branches). Kunos Simulazioni stopped developing the title years ago to focus on Assetto Corsa Competizione . So why is a server demanding a version that is lower than the current Steam build? is obsolete (v1

version mismatch??? :: Assetto Corsa Загальні обговорення Why the Error Happens Steam uses "appmanifest" files