This report investigates the common error message " Assetto Corsa
is obsolete (v1.16.3 is required)", a paradox where users running newer versions (e.g., v1.16.4) are told their game is outdated. The "Obsolete" Error: Why It Happens
The error typically stems from a version mismatch between Content Manager (CM) and the Assetto Corsa (AC) base game.
Minor Updates: Sometimes the base game receives a very minor official update (like v1.16.4) that third-party tools like Content Manager or Custom Shaders Patch (CSP) do not immediately recognize or expect.
Mod Compatibility: Certain car or track mods have a hardcoded requirement for v1.16.3 and trigger this warning if they detect any other version number. Recommended Fixes 1. The "Changelog" Text Trick (Most Effective)
This is the most popular community fix for "faking" the required version number so the software proceeds.
Navigate to your Assetto Corsa root folder (usually SteamLibrary\steamapps\common\assettocorsa). Locate the file named changelog.txt.
Open it and change the top version number (likely 1.16.4) back to 1.16.3. Save the file and restart Content Manager. 2. Update or Reinstall Custom Shaders Patch (CSP) assetto corsa is obsolete v1163 is required fix
Many users encounter this because their version of CSP is outdated or improperly installed.
Open Content Manager, go to Settings > Custom Shaders Patch > About & Update.
Select a newer recommended version (e.g., v0.1.79 or higher) from the list to force an update.
If the "Install" button is missing or broken, manually create an extension folder in your AC root directory, followed by an installed folder inside it. 3. Verify Integrity via Steam
If the base game files are genuinely corrupted or missing a minor update: Right-click Assetto Corsa in your Steam Library.
Select Properties > Installed Files > Verify integrity of game files.
This will reset official files to the correct state, though you may need to re-apply the "Changelog" fix afterward if the error persists. Assetto Corsa Requirements Summary Minimum Requirement Recommended OS Windows 7 SP1 / 10 Windows 10 / 11 CPU Intel Core 2 Duo 2.4 GHz Intel Quad-Core / AMD Six-Core RAM GPU NVIDIA GeForce GT 460 NVIDIA GTX 970 / AMD R9 290X Storage 30 GB (SSD recommended) This report investigates the common error message "
Are you seeing this error while trying to join a specific server, or does it happen as soon as you launch the game? Installed Custom Shaders Patch is obsolete - OverTake.gg
The error " Assetto Corsa is obsolete (v1.16.3 is required)" is a common issue typically encountered when using Content Manager (CM) or the Custom Shaders Patch (CSP). Despite the message, it usually doesn't mean your game is actually outdated—often, it’s a version-check mismatch where Content Manager fails to recognize your actual game version. Direct Fix: Editing the Changelog
The most reliable community-verified fix is to manually "trick" the software into recognizing the version it wants.
Navigate to your Assetto Corsa root folder (usually C:\Program Files (x86)\Steam\steamapps\common\assettocorsa). Locate a file named changelog.txt.
Open it with Notepad and find the very first line (the most recent version entry).
If it says 1.16 or 1.16.4, manually change it to exactly 1.16.3. Save the file and restart Content Manager. Alternative Fixes
If the changelog edit doesn't resolve the issue, try these steps: Required Fixes That Depend on 1163 Without updating
Verify Steam Game Files: If you genuinely lack files, right-click Assetto Corsa in Steam, go to Properties > Installed Files, and click Verify integrity of game files.
Update/Reinstall CSP: Open Content Manager, go to Settings > Custom Shaders Patch > About & Updates, and select a different version or click "reinstall current".
Reset Content Manager: If CM is completely stuck, you can force it to "re-index" by renaming its data folder. Press Win + R, type %localappdata%, find the AC Tools Content Manager folder, and rename it to something like AC Tools Content Manager-old. Installed Custom Shaders Patch is obsolete - OverTake.gg
Reinstall Assetto Corsa through Steam. Once finished, do not launch the game immediately.
Without updating to build 1163, the following fixes cannot be applied or will not function correctly:
| Issue Category | Required Fix | |----------------|---------------| | Graphics | Proper implementation of Sol / Pure weather controllers; dynamic lighting; rain visuals. | | Physics | Extended Physics (CSP) for chassis flex, turbo modeling, and tire deformation. | | Sound | FMOD bank updates for multi-channel audio and dynamic exhaust samples. | | User Interface | Content Manager full integration (preset saving, real-time telemetry). | | Netcode | UDP packet consistency for motion platforms, dash apps, and telemetry tools. |
Assetto Corsa, released in 2014, has an active player and modding community. Over time, updates introduce necessary bug fixes, compatibility improvements with multiplayer servers, anti-cheat or leaderboard systems, and support for new content. When a specific build—v1.1.6.3—becomes required, users on earlier versions may be unable to join servers, suffer gameplay instability, or face corrupt data with newer mods. This paper documents reasons for enforced upgrades, technical changes in v1.1.6.3, impacts of obsolescence, mitigation approaches, and a recommended rollout plan.