Assetto Corsa Is Obsolete V1163 Is Required Fix 2021

The error message Assetto Corsa is obsolete (v1.16.3 is required)"

is a common bug where Content Manager (CM) or the Custom Shaders Patch (CSP) fails to recognize a recent minor update from Kunos. Paradoxically, your game is likely version 1.16.4, which is

than the required version, but the modding tools don't understand the change. The Story of the Obsolescence Glitch

Imagine you've just sat down for a weekend racing session. You fire up Content Manager

, ready to tear up the Nordschleife, but instead of the roar of an engine, you’re met with a cold, digital rejection: Assetto Corsa is obsolete.

It feels like the end of the road, but it’s actually just a communication breakdown. Kunos released a tiny, unannounced update (version 1.16.4) that changed just enough to confuse the Custom Shaders Patch

. The tools are looking for a specific "v1.16.3" signature that no longer exists in the way they expect. How to Fix the "Obsolete" Error

You can resolve this in less than two minutes by tricking the software into seeing the version it wants. Locate the Changelog

: Go to your Assetto Corsa root installation folder (usually SteamLibrary\steamapps\common\assettocorsa Edit the Version : Find the file named changelog.txt . Open it with Notepad. The "Downgrade" Trick : At the very top of the file, you will see VERSION 1.16.4 . Simply change the so it reads VERSION 1.16.3 and save the file. assetto corsa is obsolete v1163 is required fix

: Close and reopen Content Manager. The error should vanish, and you can head back to the track. Alternatively, many users reported that simply ignoring the message

works fine, as the game still launches and runs perfectly despite the warning. latest CSP preview to ensure your graphics mods are fully up to date?

The error " Assetto Corsa is obsolete (v1.16.3 is required)"

typically occurs because of a mismatch between the game's actual version (often ) and what Content Manager (CM) Custom Shaders Patch (CSP) expects to see

. This usually happens after a small official update that the third-party launcher does not yet recognize. Common Fixes

This message appears to be a technical error or mod requirement notice for the racing simulation game Assetto Corsa.

Here’s a breakdown and review of what it likely means:

Translation of the error:
The game or a mod is telling you that your current version of Assetto Corsa is “obsolete” (outdated) and that you specifically need version 1.16.3 installed to proceed. The error message Assetto Corsa is obsolete (v1

Key points:

Likely causes of the error:

  1. Pirated copy – Many cracked versions are based on older builds (e.g., 1.15.x) and don’t match 1.16.3.
  2. Steam offline mode – Sometimes Steam fails to update the executable properly.
  3. Manual install conflict – A mod overwrote the acs.exe with an older version.
  4. Corrupted installation – Missing or mismatched game files.

Fixes to try:

  1. Verify game files on Steam (Right-click Assetto Corsa → Properties → Installed Files → Verify integrity).
  2. Check acs.exe properties → Details → File version should be 1.16.3.
  3. Reinstall the game if verification doesn’t work.
  4. Avoid “no-steam” cracks – They almost always trigger this error.

Bottom line:
The error is legitimate and correct – the game needs 1.16.3. If you own a legal Steam copy, verifying files will fix it. If you’re using an unofficial version, the “fix” is to buy the game (often on sale for ~$5). The message itself is not a bug; it’s a version check doing its job.

Assetto Corsa is obsolete (v1.16.3 is required)" error is a common version-mismatch bug typically triggered within Content Manager (CM) after small base game updates. It often occurs because the game's actual version (e.g., v1.16.4) is higher than what a specific version of Custom Shaders Patch (CSP) or Content Manager expects. Immediate Fixes

Change the Changelog Version (Recommended):Manually tricking the software into seeing the "correct" version is the most effective direct fix.

Navigate to your Assetto Corsa root directory (usually Steam\steamapps\common\assettocorsa). Locate and open changelog.txt.

Find the very first line indicating the version number (e.g., 1.16.4). Change it to 1.16.3 and save the file. Version 1

Ignore the Warning:In many cases, this is a "false positive" reporting error. If the game still launches and plays without crashing, the warning can simply be ignored.

Update or Reinstall Custom Shaders Patch (CSP):Outdated or corrupted CSP versions often cause this conflict.

In Content Manager, go to Settings > Custom Shaders Patch > About & Updates.

Select a newer "preview" or "recommended" version from the list to trigger an update. If already on the latest version, click "Reinstall CSP". Secondary Troubleshooting

If the game fails to launch ("Race Cancelled" error) after seeing this message:

Here’s a structured write-up based on your statement. It’s written in a technical, community-facing style suitable for forums, patch notes, or modding discussions.

Title: On the Obsolescence of Assetto Corsa and the Critical Need for Version 1163 (Required Fix)

3) Verify integrity of game files (Steam)

  1. Library → right‑click Assetto Corsa → Properties → Local Files.
  2. Click “Verify integrity of game files.”
  3. Wait for verification and any missing/corrupt files to be re‑downloaded.
  4. Launch game and check error.

Why This Error is So Confusing (The "Steam Lie")

The most common reason for frustration is that Steam says your game is fine, but the server disagrees.

You open Steam, right-click Assetto Corsa > Properties > Local Files > Verify integrity of game files. Steam tells you: "Successfully validated 100% of files." You launch the game, yet the error persists.

Why? Because Steam only checks official vanilla files. It does not check:

Simply put: Your Steam validation passed, but your server handshake failed. You have a mismatch.