If you are a sim racer who thrives on modded content, you have likely seen it. You spend an hour downloading a high-quality Porsche 992 GT3 Cup mod or a stunning recreation of a Japanese mountain pass. You extract the files, drop them into your content folder, and launch the game with anticipation.
Then, the dream dies.
A black box appears. A single, frustrating sentence glares at you: "Assetto Corsa is obsolete v1.16.3 is required."
Your heart sinks. Is your game broken? Is the mod a scam? Does this mean you need to buy a new game?
No. This is simply the most misunderstood error message in the Assetto Corsa modding universe. This article will explain exactly why this happens, why the game isn't actually obsolete, and the step-by-step methods to get back on the track.
If you are reading this while staring at the error box, do this right now:
Do not argue with the mod. Do not try to manually hex-edit the acs.exe. You will only break your 300-car mod collection. Respect the v1.16.3.
Your sim racing experience depends on it.
This error message typically appears when Content Manager (CM) or a specific mod (like Custom Shaders Patch
) cannot find the necessary core game files or when your installation is outdated or corrupted
. Even though the "v1.16.3" refers to the final official version of Assetto Corsa , modern mods require this specific build to function. Common Fixes Verify Game Files on Steam : This is the most effective fix for "obsolete" errors. Right-click Assetto Corsa in your Steam Library. Properties Installed Files
The message Assetto Corsa is obsolete (v1.16.3 is required)"
a common technical "glitch" within the modding community, specifically occurring when using Content Manager (CM) Custom Shaders Patch (CSP) The Backstory: A Version Confusion
Despite the ominous wording, this error usually doesn't mean your game is actually broken or out of date. Instead, it is typically caused by a mismatch in how third-party mods read the game's version file. The Conflict: Assetto Corsa's official development ended years ago, with
(released in January 2018) being the long-standing final stable version. The "Small Update" Trigger:
Occasionally, Kunos Simulazioni (the developers) releases tiny, unannounced updates—such as one for a Ferrari esports event—which bumps the internal version number to The Error:
Because the Custom Shaders Patch was specifically coded to look for v1.16.3, it sees v1.16.4 and assumes your game is "obsolete" or unrecognized, even though you technically have a How to Fix the "Obsolete" Error
You can resolve this without a full reinstall by tricking the software into seeing the version it expects.
It sounds like you’re hitting a version mismatch error! In the world of Assetto Corsa
, staying on the latest stable build (v1.16.3) is essential for server compatibility and running modern mods like CSP (Custom Shaders Patch).
Here are a few ways to phrase this, depending on where you're posting it: Option 1: The "Direct & Helpful" (Best for Discord/Forums) Subject: Action Required: Update Assetto Corsa to v1.16.3
"Heads up, drivers! If you’re getting an 'Obsolete' error, it’s because your game version is out of date. To join our servers and ensure your mods work correctly, you must be on v1.16.3 How to fix: Restart Steam to trigger the update. If it doesn't start, right-click Assetto Corsa > Properties > Installed Files > Verify integrity of game files
Make sure you aren't opted into any old 'Beta' branches in the Beta tab." Option 2: The "Short & Punchy" (Best for Server MOTD) VERSION ERROR: Your AC build is obsolete. v1.16.3 is required
to join. Please update via Steam and restart Content Manager before trying to reconnect." Option 3: The "Modder’s Note" (Technical Context) assetto corsa is obsolete v1.16.3 is required
"Warning: This configuration requires Assetto Corsa v1.16.3. Older versions are considered obsolete and lack the physics engine updates necessary for current tire models and CSP features. Please verify your game files on Steam to reach the latest build." Quick Tip:
If you're already on v1.16.3 but still see the error, it's often a Content Manager
glitch—try pointing CM to your root folder again or checking for a CM update. Are you seeing this error while trying to join a specific server , or did it pop up after installing a
Assetto Corsa is obsolete (v1.16.3 is required)" error is a common glitch that occurs when Content Manager or the Custom Shaders Patch (CSP) fails to recognize a minor game update. Ironically, this error often appears even if you have a newer version (like v1.16.4) installed. You can fix this quickly using the following methods: 1. Manual File Edit (Fastest Fix)
This method tricks the software into recognizing the version it expects without actually changing your game files.
Navigate to your Assetto Corsa root folder (usually SteamLibrary\steamapps\common\assettocorsa). Locate and open the file named changelog.txt with Notepad.
Change the top version number from 1.16.4 (or whatever it currently says) to 1.16.3. Save the file and restart Content Manager. 2. Standard Launcher Refresh
Sometimes the game needs to finalize an update through its official channel before third-party launchers work correctly. Close Content Manager.
Launch Assetto Corsa directly through the Steam Library using the standard launcher.
Let it reach the main menu, then exit and try opening Content Manager again. 3. Update Custom Shaders Patch (CSP)
Old versions of CSP may not be compatible with newer Steam updates. In Content Manager, go to Settings > Custom Shaders Patch.
Check for updates and install the latest "Recommended" or "Tested" version.
Alternatively, you can download the latest patch manually from the official Custom Shaders Patch website and drag it into Content Manager to install. 4. Verify Game Integrity
If files are genuinely missing or corrupt, Steam's built-in repair tool can fix them.
The error " Assetto Corsa is obsolete (v1.16.3 is required)" is a known bug in Content Manager (CM) and the Custom Shaders Patch (CSP). It typically occurs because the current version of the game (v1.16.4) is actually newer than what the patch expects, causing a version mismatch. Recommended Fixes
You can resolve this issue using one of the following methods: Edit the Changelog (Quickest Fix):
Navigate to your Assetto Corsa root installation folder (usually SteamApps\common\assettocorsa). Open the changelog.txt file.
Change the version number at the top from 1.16.4 back to 1.16.3. Save the file and restart Content Manager. Enable Untested Updates in Content Manager: Open Content Manager and go to Settings at the top.
Click on the Content Manager tab on the left, then select General.
Find the "Test access" section and enable "Update to untested version". Restart Content Manager to see if it clears the error. Update or Reinstall Custom Shaders Patch (CSP):
The error is often tied to an older version of CSP. In Settings > Custom Shaders Patch > About & Updates, try installing the latest available version (e.g., v1.79 or newer) instead of the "Recommended" one.
If problems persist, you can select "Delete patch" and perform a clean reinstall of CSP through Content Manager.
Despite this error message appearing, many users find that the game and mods still function normally if the message is simply ignored. The "Assetto Corsa is Obsolete" Error: Why v1
Are you experiencing any actual gameplay crashes, or does the error just appear as a notification when you launch? Installed Custom Shaders Patch is obsolete - OverTake.gg
Title: The "Obsolete" Error: A Misleading Headline for the King of Mods
If you spend any time in the Assetto Corsa modding community, you have likely seen the dreaded phrase: "Assetto Corsa is obsolete. v1.16.3 is required."
At first glance, this error message—often encountered when trying to join a server or launch a mod—is infuriating. It implies that your game is outdated, that you need to download a specific, older patch, and that the "current" version of the game on Steam isn't good enough. It feels like a step backward.
However, if you dig a little deeper, this error represents the single greatest strength of Assetto Corsa: its unmatched longevity.
The "Problem" The confusion stems from the fact that the official game on Steam has progressed past version 1.16.3. When modders and server hosts create content, they often anchor it to specific builds to ensure stability. When the game updated to newer versions (like 1.17 or the final 1.16.4 on Steam), it broke compatibility with certain mods. As a result, a massive portion of the community voluntarily rolled back their game or used tools like "Content Manager" to force the game to run as if it were v1.16.3.
When you see this error, it isn't telling you the game is dead; it’s telling you that you are trying to access the "Golden Era" of modding without the right key.
The Review of the Ecosystem While annoying for a newcomer, the requirement for v1.16.3 highlights a unique phenomenon in gaming. Unlike other titles that die when the developer stops updating them, Assetto Corsa was taken over by the community.
The Verdict "Assetto Corsa is obsolete v1.16.3 is required" is the most ironic error message in simulation racing. It suggests obsolescence, but it actually proves timelessness. The fact that thousands of players are still arguing over a specific patch version from years ago proves that this game isn't going anywhere.
If you see this error, don't uninstall. Download Content Manager, let it handle the version switching, and enjoy the version of Assetto Corsa that the community perfected—because the developers sure didn't make the game this good on their own.
Score: 9/10 for the community keeping it alive, 2/10 for the confusing error messaging.
The error message is hyperbolic but poignant. Assetto Corsa is a decade old. The fact that we are manually spoofing version numbers to keep it alive is proof of its obsolescence—and simultaneously, its immortality.
v1.16.3 is required isn't a bug; it's a handshake between two eras of modding. The game is technically "obsolete," but the community has built a life-support system so robust that it outpaces modern sims in features.
If you see this error again, don't panic. Don't uninstall. Just open Content Manager, update your CSP, and spoof the number. You’ll be back on the Nordschleife in traffic within two minutes.
Final verdict: Your copy of Assetto Corsa is not obsolete. The error message is just a cry from an older server that needs a little white lie to let you in.
Have you fixed the "v1.16.3 is required" error using version spoofing, or did you downgrade your Steam build? Let us know in the comments below.
In the world of sim racing, the error message Assetto Corsa is obsolete: v1.16.3 is required"
isn't just a technical glitch—it's a gatekeeper. Here is the "story" of why you are seeing it and how to fix it. The Background
Assetto Corsa stopped receiving official content updates years ago, with (the "Bonus Pack 3" update) being the final official stable build released by Kunos Simulazioni. Because the modding community (via Content Manager Custom Shaders Patch
) has essentially rebuilt the game's engine, almost all modern mods, shaders, and online servers are built specifically for this final version. If your game is even one minor decimal point behind, the modern tools will flag it as "obsolete" because they can't hook into the necessary game files. Why It Happens Steam Sync Issues:
Sometimes Steam fails to download the very last tiny patch, leaving you on v1.16.2. Cracked Versions:
Unofficial or "repack" versions of the game are often stuck on older builds (like v1.14 or v1.15) which do not support modern mods. Beta Branches:
You might accidentally be opted into an older "beta" branch in your Steam settings. How to Fix the "Story" Open Content Manager
To get back on the track, follow these steps to ensure you are on the required version: Verify Game Files: Right-click Assetto Corsa in your Steam Library > Properties Installed Files Verify integrity of game files
. Steam will detect if you're missing the v1.16.3 files and download them. Check Beta Branches: In the same Properties menu, go to the tab. Ensure "Beta Participation" is set to Update Content Manager:
If your game is actually v1.16.3 but you still see the error, update your Content Manager reinstall the Custom Shaders Patch (CSP)
Are you trying to join a specific modded server, or does this error pop up as soon as you launch the game? Assetto Corsa Update 1.16 and Bonus Pack 3 Released
Troubleshooting " Assetto Corsa Is Obsolete (v1.16.3 Is Required)" If you have encountered the error message " Assetto Corsa
is obsolete. (V1.16.3 is required)", you are likely a PC user attempting to run Assetto Corsa using Content Manager (CM) or the Custom Shaders Patch (CSP). Despite the confusing phrasing, this error usually occurs even when you are already running the latest version of the game. Why This Error Occurs
The "obsolete" message is typically a communication error between Content Manager and the game files rather than an actual version conflict. It often arises from:
Pathing Issues: Content Manager cannot correctly locate your Assetto Corsa root folder.
Folder Names: Having non-western or special characters in the root folder path can confuse the launcher.
Broken Mods: A corrupted installation of the Custom Shaders Patch (CSP) or a conflict with a specific car or track mod. Proven Fixes If you are seeing this error, try these steps in order:
Verify Game Files: Right-click Assetto Corsa in your Steam library, select Properties > Installed Files, and click Verify integrity of game files. This ensures you truly are on version 1.16.3.
Run the Base Game Once: Before launching through Content Manager, launch the game directly via Steam. Load into a track with a vanilla car, then exit and try Content Manager again.
Check Root Folder Path: Open Content Manager and go to Settings > Content Manager > General. Ensure the "Assetto Corsa root folder" path is correct and contains no special characters.
The "Changelog" Hack: If the game is functioning but the error persists, some users found success by opening changelog.txt in the game's root directory and manually changing the version number text to 1.16.3 (or 16.3) to satisfy the check.
Reinstall CSP: In Content Manager, navigate to Settings > Custom Shaders Patch > About & Updates and try reinstalling the "Recommended" version or a slightly older version to reset the patch files. When to Ignore the Error
In some cases, this error appears as a "ghost" message in the Content Manager updates tab but does not actually prevent the game from starting. If your mods and races are loading normally, it may be a cosmetic bug with your current version of Content Manager that can be safely ignored. Installed Custom Shaders Patch is obsolete - OverTake.gg
The error "Assetto Corsa is obsolete (v1.16.3 is required)" is a common false-positive notification typically encountered when using Content Manager (CM) or the Custom Shaders Patch (CSP). It often occurs because the game’s internal version number (often 1.16.4) is slightly newer than what the third-party tool expects, or due to minor inconsistencies in the game's changelog file. Quick Fixes & Workarounds
Ignore the Message: In many cases, this is purely a visual bug. If your game still launches and runs correctly through Content Manager, you can safely ignore the error. Edit the Changelog (Most Effective):
Navigate to your Assetto Corsa root folder (usually SteamLibrary\steamapps\common\assettocorsa). Locate and open changelog.txt.
Find the very first version number listed at the top (e.g., 1.16.4). Manually change this number to 1.16.3 and save the file.
Verify Integrity of Game Files: Use the Steam Library to right-click Assetto Corsa, select Properties > Installed Files, and click Verify integrity of game files. This ensures you actually have the latest official version. Content Manager & CSP Troubleshooting
Here’s a concise write-up explaining the situation where Assetto Corsa v1.16.3 is required and why older versions are considered obsolete.
Many users report that CSP versions after 0.1.80 cause the "obsolete" error with certain Porsche and Mercedes mods.