Once the verification is complete and the download finishes, launch the game. The "Obsolete" error should disappear, replaced by the familiar loading screen of the Launcher.
It is worth noting that the official version of Assetto Corsa has progressed far beyond v1.16.3. The current standard is version 1.16.4 (and often higher depending on the DLC installed). By fixing the v1.16.3 requirement, you are essentially catching the game up to the baseline required to play online and use modern mods.
The "Assetto Corsa is obsolete v1.16.3 is required" error can be frustrating because it prevents the user from even reaching the main menu. However, it is not a fatal flaw in the software. It is a version mismatch caused by an incomplete update process. By using the "Verify Integrity of Game Files" function in Steam, players can bypass the error, ensuring their simulation software
To fix the "Assetto Corsa is obsolete (v1.16.3 is required)" error, you typically need to manually sync the version number in your game's text files. This error often occurs when you have a newer version (like v1.16.4) that Content Manager doesn't correctly recognize. Quick Fix: Edit the Changelog
The most effective solution reported by the community is to manually change the version number in your game directory.
Navigate to your Assetto Corsa root folder (usually found at C:\Program Files (x86)\Steam\steamapps\common\assettocorsa). Locate and open the file named changelog.txt. Scroll to the very top and find the latest version number. Change that number (e.g., 1.16.4) to 1.16.3. Save the file and restart Content Manager. Alternative Solutions If editing the changelog doesn't work, try these steps:
Launch via Steam Once: Close Content Manager and launch the game once through the standard Steam launcher. This can trigger necessary first-run installations or updates that Content Manager might skip.
Verify Game Files: In Steam, right-click Assetto Corsa > Properties > Installed Files > Verify integrity of game files. This ensures your base game is actually up to date.
Update Custom Shaders Patch (CSP): In Content Manager, go to Settings > Custom Shaders Patch > About & Updates and ensure you are running a stable version of the patch.
Are you using a pirated version or the official Steam version of the game? Installed Custom Shaders Patch is obsolete - OverTake.gg
The error message " Assetto Corsa is obsolete (v1.16.3 is required)" is a common technical glitch primarily affecting users of the Content Manager (CM) mod and the Custom Shaders Patch (CSP). Despite the alarming wording, it usually does not mean your game is broken; rather, it indicates a versioning mismatch where certain mods do not recognize recent minor Steam updates to the base game. Core Cause of the Issue
The base game Assetto Corsa received minor official updates (such as v1.16.4) for specific events like the Ferrari Esports event. Because many core mods like CSP were hard-coded to look for version v1.16.3, they incorrectly flag any newer or slightly different version as "obsolete". Most Effective Fixes
You can resolve this error using one of the following methods, ranked from simplest to most thorough: Installed Custom Shaders Patch is obsolete - OverTake.gg
The year is 2026. The racing world has moved on. Assetto Corsa 2 has been out for eighteen months, and Kunos Simulazioni has long since stopped supporting the original game. Online leaderboards are ghost towns. Modding forums are filled with broken links. Most people have uninstalled it.
But not Leo.
Leo is a preservationist. He runs a small, obsessive server called "Legacy Shift: 1.16.3 Only." No graphics mods. No post-processing filters. No custom shaders. Just pure, unpatched Assetto Corsa — version 1.16.3, the final, definitive build before Kunos abandoned it.
Tonight, he’s trying to onboard a new driver: a hotshot e-sports rookie named Mika who keeps complaining that her Assetto Corsa won’t connect.
Mika (discord DM, 11:47 PM): “it says ‘assetto corsa is obsolete v1.16.3 is required’ — fix?”
Leo sighs. He’s seen this a hundred times. Steam auto-updated her game to a later "final" patch that broke more than it fixed. The 1.16.3 requirement isn’t just a version number — it’s a key. Without it, the server’s handshake protocol fails. No cars load. No laps count.
He types back slowly, each instruction precise as a pit board:
Leo: “You need to roll back. Go to Steam console. Download depot 244210, manifest 8374291590385621431. That’s the only way.”
Mika fumbles through it. Thirty minutes pass. Leo watches the server lobby — empty, as always. He refreshes. Refreshes again.
Then, a flicker.
Mika has joined the server.
Her car spawns — a bone-stock Mazda MX-5 on street tires. No assists. No ABS. Leo grins, selects his own MX-5, and pulls out of the pits onto a rain-slicked Magione.
They run ten silent laps. No voice chat. No text. Just the rhythm of tire squeal and engine note — the real physics, untainted by later updates that nerfed the clutch simulation and softened the FFB.
After the final lap, Mika sends one last message:
Mika: “Okay. I get it now. 1.16.3 is not obsolete. Everything after is.”
Leo leans back, the server log glowing softly in the dark. assetto corsa is obsolete v1.16.3 is required fix
Assetto Corsa v1.16.3 — Required. Fixed.
The error message Assetto Corsa is obsolete (v1.16.3 is required)" a common issue typically encountered when using Content Manager (CM) Custom Shaders Patch (CSP)
. Despite the warning, your game is often actually more up-to-date than the error suggests—many users are on version , which CM or CSP may fail to recognize correctly. 1. The "Changelog" Text Edit (Primary Fix)
The most effective and direct solution is to trick Content Manager into recognizing your version by editing a single text file in your game directory. Locate your Root Folder and go to your . Right-click Assetto Corsa Browse local files Find changelog.txt : Search for a file named changelog.txt in the main folder. Edit the Version
: Open the file with Notepad. At the very top, you will likely see . Change this number to Restart Content Manager : Relaunch CM to see if the error is resolved. 2. Verify Game Integrity via Steam
If your game files are truly missing data or the versioning is corrupted, use Steam's built-in repair tool. Steam Library Right-click Assetto Corsa and select Properties Navigate to Installed Files Verify integrity of game files
Steam will download any missing or outdated files to ensure you are on the latest official build (which includes the final 1.16.3/1.16.4 updates). 3. Update Custom Shaders Patch (CSP)
Sometimes the error occurs because an older version of CSP doesn't understand newer game builds.
The error message Assetto Corsa is obsolete (v1.16.3 is required)" is a common bug encountered when using Content Manager Custom Shaders Patch
(CSP). It typically occurs because these tools fail to correctly detect your game's current version, often following a small official update or due to missing local metadata. Top Recommended Fixes Modify the Changelog File (Fastest Fix)
: Many users have successfully bypassed this check by tricking the software into seeing the required version number.
Navigate to your Assetto Corsa root installation folder (e.g., SteamLibrary\steamapps\common\assettocorsa changelog.txt Change the very top version number (e.g., from Save the file and restart Content Manager. Verify Integrity of Game Files
: If the version mismatch is real, Steam's built-in repair tool can force an update to the latest stable version. Right-click Assetto Corsa in your Steam Library. Properties Installed Files
Troubleshooting: "Assetto Corsa is Obsolete (v1.16.3 is Required)" Fix Once the verification is complete and the download
If you are seeing the error message "Assetto Corsa is obsolete (v1.16.3 is required)" while trying to launch the game through Content Manager or the Custom Shaders Patch, you are not alone. This typically happens when the software—specifically Content Manager (CM)—fails to recognize the current version of your game files, often after a minor update.
Here are the most effective ways to resolve this issue and get back on the track. 1. Verify Game Integrity on Steam
The most reliable way to ensure your game is actually on version 1.16.3 is to use Steam's built-in repair tool. Open your Steam Library. Right-click on Assetto Corsa and select Properties. Navigate to the Installed Files (or Local Files) tab.
Troubleshooting " Assetto Corsa is Obsolete (v1.16.3 Required)" The error message Assetto Corsa is obsolete (v1.16.3 is required)"
is a common false-positive issue primarily encountered by users of the Content Manager (CM) launcher or Custom Shaders Patch (CSP)
. Paradoxically, this error often occurs because the game has been updated to a version
than 1.16.3 (typically v1.16.4), which the mod tools do not yet recognize. Primary Cause: Version Misalignment
When Kunos Simulazioni released minor updates (such as the Ferrari Esports event update), the version number jumped to . Because many versions of CSP were hard-coded to look for
as the "latest" valid version, the patch fails to recognize the new files and flags the installation as outdated. Proven Fixes
The most effective way to resolve this is to manually spoof the version number so that the modding tools recognize the installation. Modify the Changelog File (Recommended) Navigate to your Assetto Corsa root installation folder (usually SteamLibrary\steamapps\common\assettocorsa Locate the file named changelog.txt
Open it with Notepad and find the very top entry, which likely says Change this value to and save the file.
Restart Content Manager; the "obsolete" warning should disappear. Alternative File Management
If editing the text doesn't work, some users have success by changelog.txt changelog.txt.bak
or deleting it entirely, forcing the launcher to bypass the version check. Update Mod Tools In Content Manager, go to Custom Shaders Patch About & Updates Try installing the latest "Recommended" or "Preview" version of CSP Mika (discord DM, 11:47 PM): “it says ‘assetto
. Newer versions of the patch often include fixes for the v1.16.4 detection issue. Secondary Troubleshooting If the version spoofing does not allow you to launch races: Verify Game Files Steam "Verify integrity of game files" tool to ensure no core assets are corrupted. Check Root Folder Name : Ensure your Assetto Corsa folder path does not contain non-western or special characters , as this can confuse Content Manager's file pathing. Clean Reinstall : If all else fails, users from Steam Community forums suggest a full clean reinstall of the game to reset the environment. before attempting a clean reinstall? AI responses may include mistakes. Learn more
You will find shady “no-cd” or “version bypass” patches online. Avoid them. These are often malware vectors. Furthermore, they will break online racing (Steam authentication) and future mod compatibility. There is no ethical or safe reason to patch your acs.exe if you own the game legitimately.