Assetto | Corsa Is Obsolete V1163 Is Required Fix Hot

If you are using AssettoCorsa.exe from a "RePack," throw it away. Buy the game on Steam (it is often $5 on sale). Cracked versions hard-code an old version number (often 1.15 or 1.10) that no modern mod supports.

Assetto Corsa is not obsolete. It is a classic. The "v1163 required" error is a symptom of a game that has outlived its official support. We are now in the "preservation era" of sim racing, where the community must act as the curator.

If you see this error, don't blame the game. Blame the server admin who forgot to turn off version checking, or thank the modder whose beautiful rain shader broke the antiquated checksum system.

The fix exists. The game lives on. But Kunos won't save you—Reddit and Content Manager will.

Keep racing. And keep your backups clean.

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 On the screen, the error message pulsed like a digital heartbeat: ASSETTO CORSA IS OBSOLETE.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.  assetto corsa is obsolete v1163 is required fix hot

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. 

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. 

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 If you are using AssettoCorsa

. 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

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

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. "Checksum failed

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

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?

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?