Assetto Corsa Is Obsolete V1163 Is Required Fix Hot Better

The error message Assetto Corsa is obsolete (v1.16.3 is required)" a common bug encountered by players using Content Manager (CM) Custom Shaders Patch (CSP)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

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

Assetto Corsa is obsolete (v1.16.3 is required)" error is a common version-mismatch bug within Content Manager (CM) Custom Shaders Patch (CSP)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 "error" is actually a misunderstood notification from Content Manager. It is not a critical error that stops the game from running; rather, it is an update notification telling you that your version of Content Manager is outdated.

Here is the guide to fixing it and understanding what it means.

Step 3: Disable “Check for obsolete EXE” (Last Resort)

If the error persists on your own hosted server:

In Content Manager, go to Drive → select your server.
Click Server Configuration → Advanced.
Uncheck “Check for obsolete EXE”.
Save and restart the server.

⚠️ Only do this for private/friendly servers. Public servers require the version check enabled.

What Does “v1163 is Required” Mean?

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

Your game is actually outdated (rare, but possible if you disabled auto-updates on Steam).
Your server checksum is mismatched (very common) – meaning Content Manager or the server thinks you’re on an older version due to a file mismatch or config issue.

Summary

Error: "v1.163 is required."
Cause: CSP or a mod changed your acs.exe.
Fix: Steam Verify + Disable CSP’s "Patch acs.exe" feature.

Once you complete these steps, your game will report the correct version, and you can join any server requiring v1.163.

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 assetto corsa is obsolete v1163 is required fix hot

The Text File Trick: This is the most popular community fix:

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

To fix the error " Assetto Corsa is obsolete (v1.16.3 is required)," which typically occurs when using Content Manager (CM) or Custom Shaders Patch (CSP), you can use a quick manual edit to the game's version file. This error often appears because recent minor official updates (like v1.16.4) confuse third-party tools that are specifically looking for v1.16.3. Quick Fix: Editing the Changelog

The most common and effective "hot fix" is to manually trick Content Manager into seeing the correct version number:

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

Open changelog.txt: Find the file named changelog.txt in that main folder. Edit the Version: Find the very first line (the most recent version). Change the version number (e.g., 1.16.4) to 1.16.3.

Save and Restart: Save the text file and restart Content Manager. Alternative Solutions If editing the changelog doesn't work, try these steps:

Ignore the Message: In many cases, the game and mods will still run perfectly despite the warning. You can often simply dismiss the error and proceed to the race.

Run via Steam Launcher: Close Content Manager and launch Assetto Corsa once directly through the Steam Library. This can trigger missing "first-time setup" installations that CM might have skipped.

Verify Game Files: Right-click Assetto Corsa in Steam, go to Properties > Installed Files, and select Verify integrity of game files. This ensures your base version is correctly updated to the latest official release.

Update Custom Shaders Patch (CSP): Ensure you are using a recent version of CSP. Newer builds often resolve compatibility issues with the latest base game versions.

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. The error message Assetto Corsa is obsolete (v1

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.

How to Fix the "Assetto Corsa is Obsolete (v1.16.3 is Required)" Error

If you are seeing the error message "Assetto Corsa is obsolete (v1.16.3 is required)" when launching the game through Content Manager, it is typically due to a minor version mismatch between your game files and what the Custom Shaders Patch (CSP) expects. Ironically, this error often appears because your game is too updated (v1.16.4) rather than being truly obsolete. Quick Fix: Edit the Changelog

The most effective way to bypass this error without reinstalling your entire game is to manually trick the launcher into seeing the version it expects.

Locate your Root Folder: Navigate to your Assetto Corsa installation directory (usually C:\SteamLibrary\steamapps\common\assettocorsa).

Find changelog.txt: Open this file with a text editor like Notepad.

Edit the Version: Find the very first line of the file. If it says VERSION 1.16.4, change it to VERSION 1.16.3.

Save and Restart: Save the file and restart Content Manager. The error should vanish immediately. Alternative Solutions

If the quick fix doesn't work, or if your game is actually on an older version, try these steps:

The neon flicker of the monitor cast a harsh blue light over Kael’s cramped apartment. On the screen, the error message pulsed like a digital heartbeat: ASSETTO CORSA IS OBSOLETE. V1.16.3 IS REQUIRED.

"Obsolete?" Kael whispered, his grip tightening on his direct-drive wheel. "I was just on the Nordschleife an hour ago."

He had spent months tuning his virtual Supra, perfecting the camber and gear ratios for the "Hot Lap" challenge. The leaderboard reset in thirty minutes. If he didn't fix this now, his record—and his pride—would be erased by the next update cycle.

He checked the official forums. The community was in a frenzy. A "hot fix" had been pushed to stabilize the new physics engine, but the auto-updater had hung for thousands of players. Kael tried the standard routine: verify integrity, clear cache, restart Steam. Error. Connection timed out.

"Come on," he hissed, his fingers flying across the mechanical keyboard. He dove into the root folders, navigating the labyrinth of .ini files and data structures. He found the culprit—a mismatched manifest file that was telling the server he was running a legacy build.

He manually edited the version string to 1.16.3, but the game refused to launch. The executable was looking for a specific DLL file that didn't exist in his directory.

Outside, the city hummed with real-world traffic, but Kael was miles away, trapped in a digital garage. He found a mirror link on a cryptic Discord channel. HOTFIX_v1163_STABLE.zip. It was a gamble—a potential virus or the key to the track. He clicked download. 98%... 99%... Done.

He dragged the files into the folder, overwriting the old data. He held his breath and clicked 'Start.' The screen went black. Then, the familiar roar of a turbocharged engine rattled his speakers. The menu loaded. The version number in the corner glowed steady: v1.16.3.

He didn't waste a second. He loaded the track. The asphalt looked sharper, the shadows deeper. He pushed the Supra into the first corner, the tires screaming at the edge of the new physics limit. He wasn't just racing against the clock anymore; he was racing against the obsolescence of the machine itself.

As he crossed the finish line, a new notification popped up: PERSONAL BEST. RANK 1. In Content Manager, go to Drive → select your server

Kael leaned back, his hands shaking from the adrenaline. The world called it a game, but to him, it was the only place where he could outrun time. For tonight, at least, he was up to date.

Assetto Corsa is widely regarded as one of the most resilient racing simulators ever made, but players frequently encounter a frustrating wall: the "Assetto Corsa is Obsolete, v1.16.3 is Required" error. This message usually appears when you try to join a modded server or launch a race through Content Manager.

The good news is that your game isn't actually broken. This error is almost always a version mismatch or a communication error between the game and your third-party launchers.

Here is the definitive guide to fixing the "v1.16.3 is Required" error and getting back on the track. Understanding the Root Cause

The "v1.16.3" message refers to the final official version of Assetto Corsa released by Kunos Simulazioni. While the game hasn't had an official update in years, the modding community has built layers of software on top of it. When these layers—specifically Content Manager and Custom Shaders Patch (CSP)—fall out of sync with the base game files, the "obsolete" error triggers. Phase 1: Verify Steam Game Integrity

Before diving into complex mod fixes, you must ensure your base game files are healthy. Steam often misses small file updates or loses track of the version number. Close Assetto Corsa and Content Manager. Open your Steam Library. Right-click on Assetto Corsa and select Properties. Navigate to the Installed Files tab. Click Verify integrity of game files.

Wait for Steam to scan. If it finds missing files, it will redownload the necessary data to bring you to v1.16.3. Phase 2: Update Content Manager (CM)

Most players seeing this error are using Content Manager. If CM is outdated, it may fail to recognize your game version correctly. Open Content Manager. Go to the Settings tab (top right). Click on Content Manager in the left sidebar. Select General. Click Check for updates.

If an update is available, install it and restart the application. Phase 3: The Custom Shaders Patch (CSP) Fix

If your base game is verified and CM is updated, the issue likely lies with your Custom Shaders Patch version. Some servers require specific "Recommended" or "Public" versions of CSP to run. In Content Manager, go to Settings -> Custom Shaders Patch. Click on About & Updates.

On the right-hand side, you will see a list of CSP versions.

The Fix: Even if you are on the newest version, try switching to a "Recommended" version (usually highlighted in green).

Wait for the download to finish, then restart Content Manager. Phase 4: Fixing the "Steam is Not Running" Bug

Sometimes the game reports it is "obsolete" because it cannot communicate with the Steam API.

Run as Administrator: Right-click your Content Manager shortcut and select "Run as Administrator."

Check Steam Status: Ensure Steam is actually logged in and online. If Steam is in "Offline Mode," many modded servers will reject your connection with the version error.

Plugins Check: Go to Settings -> Content Manager -> Plugins and ensure the Steam Integration plugin is enabled and active. Phase 5: The "Clean Slate" Solution

If none of the above works, a specific file in your root folder might be corrupted.

Go to your Assetto Corsa root folder (usually SteamLibrary\steamapps\common\assettocorsa). Locate the file named acs.exe. Delete it. Go back to Steam and Verify Integrity of Game Files again.

Steam will see the missing .exe and download a fresh, verified v1.16.3 version of the engine. Summary Checklist Base Game: Must be verified through Steam. Content Manager: Must be the latest version.

CSP: Try switching to a "Recommended" build rather than the "Latest" experimental build. Permissions: Run Content Manager as an administrator.

By following these steps, you remove the communication barriers between your mods and the base game. Assetto Corsa isn't actually obsolete—it just needs its modern components to talk to the classic engine correctly.

If you're still hitting a wall, I can help you dig deeper. Are you getting this error on every server or just one specific private server? Also, are you using a pirated version or the official Steam Ultimate Edition? Knowing those details will help me find the specific fix for you!