Assetto Corsa Is Obsolete V1163 Is Required Fix Hot -

Assetto Corsa remains a beloved racing-simulation title with a dedicated modding community, but players sometimes encounter startup errors that block the game from launching. One common message is “Assetto Corsa is obsolete — v1163 is required,” which typically means the game client or one of its components is out of date relative to what a launcher, mod, or multiplayer service expects. This essay explains likely causes, step-by-step fixes, and preventive measures so players regain access quickly and avoid similar interruptions.

Causes and context

Step-by-step fixes

Preventive measures

Conclusion The “Assetto Corsa is obsolete — v1163 is required” message is a version‑mismatch safeguard: the fix is to update the game (or the required mods/launchers), verify file integrity, or remove incompatible third‑party files. Start with Steam’s verification and a clean launch, then isolate mods or custom tools if problems persist. With those steps, most players restore a working client quickly and can return to racing without further interruption.

Related search suggestions (you can use these terms to look up troubleshooting guides and mod updates):

Assetto Corsa is obsolete (v1.16.3 is required)" error is a common glitch in Content Manager (CM) that occurs because the software misreads your game's version number, often after a minor Steam update. Quick Fixes

The Text File Trick: This is the most popular community fix: assetto corsa is obsolete v1163 is required fix hot

Go to your Assetto Corsa root folder (usually steamapps\common\assettocorsa). Find and open the changelog.txt file.

Find the very first version number at the top. If it says 1.16.4, manually change it to 1.16.3. Save the file and restart Content Manager.

Run via Steam First: Launch the game once through the Standard Steam Launcher instead of Content Manager. This often triggers a small first-run installation that syncs the version for CM.

Update Custom Shaders Patch (CSP): Outdated versions of CSP can trigger "obsolete" errors. In Content Manager, go to Settings > Custom Shaders Patch > About & Update and select the latest "Recommended" or "Latest" version. Assetto Corsa (2026 Perspective) Review

Assetto Corsa remains a cornerstone of sim racing, though its "obsolete" status is more about its aging engine than its relevance.

Longevity & Community: Despite being technically replaced by newer titles, the community-driven Content Manager and Custom Shaders Patch have effectively "remastered" the game, adding modern features like rain, day/night cycles, and advanced physics.

Modding Scene: It is arguably the best-supported racing sim in history. From the Shutoko Revival Project for street racing to high-fidelity GT3 cars, the variety is unmatched.

Physics & VR: While newer sims might have more complex aero models, AC’s tire feel and VR implementation remain top-tier for mid-range PC setups.

The Verdict: While you may encounter "obsolete" version errors or "race cancelled" glitches due to mod conflicts, the game is far from dead. It is a must-own for any PC sim racer who values variety and community-led innovation over a polished, out-of-the-box AAA experience. error assetto corsa is obsolete - help - Steam Community

The error message Assetto Corsa is obsolete (v1.16.3 is required)" a common bug encountered by players using Content Manager (CM) Custom Shaders Patch (CSP)

This typically happens because a minor game update—such as the one for the Ferrari Esports event—bumped the official version to

, but your version of CSP does not yet recognize this newer release as valid. How to Fix the "Obsolete" Error

You do not need to downgrade your game. Instead, you can "trick" the software into recognizing your current version as the required one using these steps: Edit the Changelog (Easiest Fix) Navigate to your Assetto Corsa root installation folder SteamLibrary\steamapps\common\assettocorsa Find the file named changelog.txt

Open it with Notepad and locate the very top entry, which likely says and save the file. Restart Content Manager; the error should disappear. Alternative File Methods If editing doesn't work, you can try changelog.txt changelog.txt.bak

it. CSP will often stop reporting the error if it cannot find the version number in that file. Update Content Manager & CSP Check for updates within Content Manager under Settings > Content Manager > General

Update your Custom Shaders Patch to the latest recommended or "untested" version under Settings > Custom Shaders Patch > About & Updates Is it Safe to Ignore? Yes. For most users, this is purely a visual error Assetto Corsa remains a beloved racing-simulation title with

in the Content Manager interface. The game and its mods generally continue to function normally even if the "obsolete" message is displayed.

The error message " Assetto Corsa is obsolete v1.16.3 is required" typically occurs when the Content Manager (CM) launcher or the Custom Shaders Patch (CSP) fails to recognize a minor update to the base game. Despite the alarming "obsolete" wording, your game version is likely already higher (e.g., v1.16.4), and the issue can usually be bypassed with a simple text edit. Quick Fix: Modify changelog.txt

This is the most common community-verified solution to force the software to recognize the "required" version.

Locate Root Folder: Go to your Assetto Corsa installation directory (typically SteamLibrary\steamapps\common\assettocorsa).

Open Changelog: Find the file named changelog.txt and open it with Notepad.

Edit Version: Look for the very first version number at the top of the file (likely 1.16.4). Change this number back to 1.16.3. Save and Launch: Save the file and restart Content Manager.

The error " Assetto Corsa is obsolete (v1.16.3 is required)" is a common false-positive notification typically encountered by users of the Content Manager (CM) Custom Shaders Patch (CSP)

mods. This message often appears because the modding software fails to correctly identify minor game updates, such as the transition from version 1.16.3 to 1.16.4. Understanding the Version Discrepancy

The issue primarily stems from the way Content Manager reads the game's version information. When Kunos Simulazioni released small updates (such as the Ferrari esports event or minor hotfixes), the version number often bumped to

. Because many CSP versions were hard-coded to look for exactly

, they flag any different number—even a newer one—as "obsolete". Core Solutions to Fix the Error

You can resolve this error using one of the following methods: Ignore the Message

: In most cases, this error is purely visual and does not impact gameplay or mod functionality. Many users continue to run the game without any issues despite the warning. Edit the Changelog File

: You can trick Content Manager into seeing the "correct" version by manually editing a text file in your game directory.

Navigate to your Assetto Corsa root installation folder (usually SteamApps\common\assettocorsa Find and open the file named changelog.txt Locate the line that says and change it back to Save the file and restart Content Manager. Update CSP to the Latest Version : Ensure you are using a modern version of Custom Shaders Patch

(e.g., v0.1.79 or newer), as these versions are better equipped to handle the 1.16.4 update without flagging it. Verify Game Files Steam Verify Integrity Step-by-step fixes

tool to ensure your base game files are correctly installed and that no official updates were missed or corrupted. General Troubleshooting Tips error assetto corsa is obsolete - help - Steam Community

Assetto Corsa is obsolete (v1.16.3 is required)" error is a common version-mismatch bug within Content Manager (CM) Custom Shaders Patch (CSP)

. It typically occurs because a minor game update (to v1.16.4) changed the version number in the game files, which older versions of CSP do not recognize. Immediate Hot Fix

The most effective solution is to manually trick the software into seeing the required version number. Locate Root Folder : Go to your Assetto Corsa installation directory (usually steamapps/common/assettocorsa/ Open Changelog : Find the file named changelog.txt Edit Version

: Open the file and look for the very first line (the latest version). If it says , manually change it to Save and Restart

: Save the text file and restart Content Manager. The "obsolete" error should vanish. Alternative Solutions If editing the text file does not work, try these steps: Update CSP : Open Content Manager, navigate to Settings > Custom Shaders Patch > About & Updates , and install the latest recommended latest preview version. Newer versions are designed to recognize v1.16.4. Rename Changelog : Some users resolve the issue by simply renaming changelog.txt changelog.txt.bak or moving it out of the folder entirely. Verify Files

: In Steam, right-click Assetto Corsa > Properties > Installed Files > Verify integrity of game files to ensure your base version is correctly installed.

: In most cases, this error is purely visual and does not actually prevent the game from launching if you ignore it. manually update Custom Shaders Patch to the latest version to prevent this in the future?

This is the most common solution. The steam_api64.dll file is the bridge between your game and the mod validation system.

Why this works: Corrupted mod installers sometimes overwrite this critical DLL with a generic one. Steam restores the authentic signature.

The legendary sim racing title Assetto Corsa is over a decade old. But is it finally obsolete? For thousands of players, the recent "v1163 is required" error message suggests the end may be near—or at least, that Kunos Simulazioni has left a ticking time bomb in their code.

Over the past several months, a growing number of sim racers have been locked out of online servers. The dreaded pop-up appears the moment they try to join a lobby:

"Checksum failed. Assetto Corsa is obsolete. v1163 is required."

For a game that stopped receiving major updates years ago, this message is both confusing and infuriating. What does it mean? And more importantly, is Assetto Corsa truly obsolete, or is there a fix?

If the error persists, manually swap the file:

Assetto Corsa’s final official game version is v1.16.3 (often shortened to v1163).
The error means one of two things:

Assetto Corsa is a popular racing simulation game developed by Kunos Simulazioni. Since its release, the game has received numerous updates, expansions, and mods, which have enhanced its gameplay, graphics, and overall experience. The version 1.16.3 you're referring to is likely one of these updates.