Assetto Corsa Is Obsolete V1163 Is Required Fix Extra Quality Now

The error message " Assetto Corsa is obsolete (v1.16.3 is required)" is a common false positive triggered by Content Manager (CM) after official game updates. It occurs because the latest base game version (typically v1.16.4) is slightly newer than what CM's version of the Custom Shaders Patch (CSP) expects. How to Fix the "Obsolete" Error

You can resolve this by either ignoring it or manually editing a text file to match the version numbers: Option 1: Edit the Changelog (Recommended)

Navigate to your Assetto Corsa root folder (right-click Assetto Corsa in Steam > Manage > Browse local files). Open the file named changelog.txt. Find the very first version number listed (usually 1.16.4). Change it to 1.16.3 and save the file. Restart Content Manager; the error should disappear.

Option 2: Ignore the MessageIn most cases, the game and mods will still function perfectly despite the warning. The message is simply CM failing to recognize the minor v1.16.4 patch. Fixing "Extra Quality" Issues

The "Extra Quality" settings (part of the Extra FX module in CSP) often cause performance drops or visual bugs if not configured correctly.

Assetto Corsa How To Install Custom Shaders Patch (CSP) in 2026 The error message " Assetto Corsa is obsolete (v1

It sounds like you're encountering an error or requirement related to Assetto Corsa needing version 1.16.3 (often written as v1163) for a specific mod, server, or tool (like Content Manager, Custom Shaders Patch, or SOL/CSP). The message indicates your current content is "obsolete."

Here’s how to fix it and ensure you have the correct, high-quality setup:

Fix: "Assetto Corsa is Obsolete – v1.163 is Required" – A Complete Guide to Restoring Extra Quality & Stability

If you are a sim racer who heavily mods Assetto Corsa, you have likely been greeted by a frustrating red wall of text in the Chat Box or Console:

"Assetto Corsa is obsolete – v1.163 is required"

Followed immediately by connection drops, missing cars turning into grey boxes, or the dreaded "Race Cancelled" screen. For many, this error also ushers in a cascade of visual and performance degradation—objects popping in late, textures failing to load (destroying the Extra Quality settings you paid good GPU silicon for), and overall instability. "Assetto Corsa is obsolete – v1

Why is this happening? Is your game truly "obsolete"?

Short answer: No. Your game is likely perfectly fine. The problem lies in a server-client version mismatch, combined with corrupted configuration files that kill your graphical fidelity.

This article will explain exactly what v1.163 means, why the game claims you are obsolete, and—most importantly—how to fix the error while restoring Extra Quality graphics.

The "Kn5" Mod Conflict

Some mod cars come with outdated kn5 encryption that tricks the server into thinking you have a different build.

• Fix: Go to assettocorsa/extension/textures/ and delete any file named obsolete_fix.dds. Then, in Content Manager, go to Content > Cars and click "Update all previews" – this forces a rescan of all models.

What Does "Assetto Corsa is Obsolete" Actually Mean?

First, let's decode the jargon. Kunos Simulazioni stopped officially updating Assetto Corsa years ago. The final official Steam build is v1.16.3 (commonly shortened to v1163). However, the modding community—specifically the brilliant minds behind Custom Shaders Patch (CSP) and Content Manager—have pushed the game far beyond its original limits. you get the obsolete error.

When you see "Assetto Corsa is obsolete," it does not mean your game is too old to run. It means the version of CSP you are trying to use (often versions 0.1.79 or 0.2.x) requires a specific, verified game executable that matches the behavior of v1163.

Why the "Extra Quality" Fix is Crucial The "Extra Quality" setting in CSP controls high-end visual features:

• Grass FX: Realistic 3D grass tufts.
• Smart Shadows: Dynamic shadow cascading.
• Lighting FX: True Global Illumination (GI).
• Rain FX: The immersive particles on your windshield.

When your game is "obsolete" (or rather, misaligned with CSP expectations), these features break. Cars may render with black windows, tracks may lose their surface, or the game may crash entirely. This is not a GPU issue; it is a version control issue.

Step 4: Server Version Mismatch (The "v1163" Specifics)

If you are trying to join a specific server and it says "v1163 is required":

• Scenario A: The Server is Old. If the server is running an old version (like actual 1.16.3), and you are on the newest Steam version, you cannot join easily. You would have to opt into the "legacy_1163" beta branch in Steam properties. However, this is rare now.
• Scenario B: The Server is New, You are "Old". If you pirated the game or haven't updated CSP in months, the server sees your client as outdated.
  • Fix: Follow Step 2 to update CSP to the latest version. Most servers display the required CSP version (e.g., "Requires CSP 0.1.79+"). If your version is lower, you get the obsolete error.