Assetto Corsa is obsolete (v1.16.3 is required)" error is a common false-positive that occurs when Content Manager (CM) or the Custom Shaders Patch (CSP) fails to recognize a minor update from Steam. Even if your game is on a newer version like v1.16.4, the tools may misread your changelog.txt and prevent the game from launching correctly. Quick Fixes for Version Obsolete Error
You can resolve this by tricking the launcher into seeing the version it expects: Edit the Changelog (Most Effective):
Navigate to your Assetto Corsa root installation folder (usually SteamLibrary\steamapps\common\assettocorsa). Locate the file named changelog.txt.
Open it with Notepad, find the very first entry (likely labeled 1.16.4), and change it to 1.16.3. Save the file and restart Content Manager.
Rename or Delete the Changelog: If editing doesn't work, you can simply rename changelog.txt to changelog.txt.bak or delete it entirely. This prevents CSP from checking the version against that file.
Verify Steam Files: If your version is genuinely older than 1.16.3, right-click Assetto Corsa in your Steam Library, select Properties > Installed Files > Verify integrity of game files to force an update to the latest official version. Additional Maintenance Tips
If the version error persists or causes crashes, try these steps:
Update Custom Shaders Patch (CSP): Ensure you are on the latest recommended version of CSP. In Content Manager, go to Settings > Custom Shaders Patch > About & Updates and select the newest version from the list. assetto corsa is obsolete v1163 is required fix hot
Clear Launcher Cache: Sometimes the launcher gets stuck on old data. Deleting C:\Users\YOURUSERNAME\Documents\Assetto Corsa\cfg\launcher.ini can force the launcher to reset its configuration.
Ignore the Message: In some cases, the "obsolete" message is purely visual and does not actually stop the game from running. If the "Start" button still works, you can often safely ignore it until the next CSP update. Installed Custom Shaders Patch is obsolete - OverTake.gg
First, let’s decode the jargon. "v1163" refers to a specific build version of Assetto Corsa (version 1.16.3). This was the final official update released by Kunos Simulazioni before they shifted their full focus to Assetto Corsa Competizione.
The error occurs because the game performs a file integrity check (checksum) when connecting to a server. If even a single file—a car texture, a shader, a sound effect—does not match the server’s expected "vanilla" v1.16.3 standard, the server rejects you.
So, why is this happening now, years after the last patch?
Some modders hard-code the "obsolete" check into the car's data.acd file. You can force the game to ignore this.
Warning: This can cause physics instability if the car was truly made for a much newer engine, but for 99% of "v1163" errors, this bypasses a false positive. Assetto Corsa is obsolete (v1
To understand the fix, you must understand the architecture of modern Assetto Corsa.
Vanilla Assetto Corsa (the official version from Steam) stopped receiving major updates years ago. The current legitimate Steam build is version 1.16.3 (often shortened to v1163). However, thanks to Ilja Jusupovs (x4fab) and the Custom Shaders Patch (CSP), the game has evolved far beyond its original 2014 limitations.
When a modder creates a car, they pack it using a specific version of the Kunos editor or a third-party tool (like CSP's extended physics). If the modder packed the car using the "v1163" signature, your game must report to Windows that it is running exactly that version.
The Error Scenario: You are running a legitimate Assetto Corsa v1.16.3, but something is interfering with the Steam API hook. This could be:
steam_api64.dll.When the game loads the car, the mod checks the game’s version string. If it doesn’t see "1.16.3" or a valid CSP handshake, it throws the obsolete error.
Last Updated: October 2024
Target Game: Assetto Corsa (Steam)
Key Focus: v1163, CSP, Car Mods
If you are an avid Assetto Corsa modder, you have likely been greeted by a message that feels like a slap in the face from your own PC: "Assetto Corsa is obsolete. v1163 is required." In Content Manager, select the problematic car
You bought the game. You downloaded the latest Custom Shaders Patch (CSP). You installed that beautiful new hypercar mod from Patreon. Yet, when you try to launch the race, the screen freezes, the console spits out red text, and you are left wondering: How can my 2024 game be "obsolete"?
Do not panic. This error does not mean your game is broken forever. It means there is a version mismatch between the mod you are trying to use and the game engine’s expected signature.
This article will explain why this happens, and provide the definitive Hot Fix to get you back on the track in under five minutes.
You mentioned "fix hot" in your request. Be very careful if you are searching for this error on YouTube or Google.
.exe file or a "patch." Do not do this.The vanilla Kunos launcher is notoriously bad at handling CSP. Content Manager bypasses many of the legacy version locks.
You likely saw a message resembling: "Assetto Corsa is obsolete v1163 is required" or a pop-up saying a specific version of Content Manager is required.