Assetto Corsa Is Obsolete V1163 Is Required Fix [TOP]

Does this happen on , or just one specific server ? Do you have Custom Shaders Patch (CSP) installed?

Navigate to your mod folder: .../Assetto Corsa/content/cars/[Name_Of_The_Car_Mod] .

Assetto Corsa is Obsolete: v1.16.3 is Required - Quick Fix Guide (2026 Updated)

Windows permission restrictions can block Content Manager from reading the acs.exe version data. assetto corsa is obsolete v1163 is required fix

It was 2:00 AM. The world was asleep, but Elias was awake, chasing the perfect lap on the Nordschleife. He navigated to the Content Manager, the sleek, third-party launcher that had breathed new life into the aging simulator for a decade. He was ready to click the "Drive" button, his hands hovering over his Fanatec wheel.

It feels like a strange error—Assetto Corsa hasn't had a major official update in years, so why is your game suddenly "obsolete"? This issue usually stems from a mismatch between your local game files and the server’s requirements, often triggered by mods or a corrupted Steam update.

This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. Does this happen on , or just one specific server

The most confusing part of this error is that your game is likely completely up to date—usually running version 1.16.4 or later on Steam . The error occurs because or your installed Custom Shaders Patch (CSP) is failing to recognize the newer version of the game. It misinterprets your modern version as an old, incompatible build, completely halting the loading screen. 🛠️ The Step-by-Step Fixes Fix 1: Edit the changelog.txt File (The Quickest Bypass)

If you purchased Assetto Corsa outside of Steam, check the official website or the platform you purchased it from (e.g., GOG, Epic Games Store) for any update patches.

Do you have (CSP) installed through Content Manager? I can give you a more specific fix based on that! Share public link Assetto Corsa is Obsolete: v1

If a file like acs.exe or acs.pdb is genuinely corrupted, Steam can repair it automatically. Open your . Right-click Assetto Corsa > Properties . Go to the Installed Files tab. Click Verify integrity of game files .

If you have an older version of the game installed (common if you haven't updated in a while) or if a recent, small "sneaky" update from Steam hasn't fully registered, CSP will refuse to work, triggering the "obsolete" message 2.2.4 . 1. The Primary Fix: Update via Steam (Most Common Solution)

The error message you see is a simple performed by a piece of software called the Custom Shaders Patch (CSP) . In simple terms, CSP is trying to confirm you have the correct version of the base game before it loads. However, it has gotten confused and is providing what is essentially a "false positive".

Default Steam path: C:\Program Files (x86)\Steam\steamapps\common\assettocorsa Locate the file named changelog.txt . Open it with Notepad. Change the top entry (which likely says ) to . Save the file and close it. Restart Content Manager. Method 2: Reinstall/Verify via Steam