“disconnected integrity error unknown file version” is a very common error that occurs in Rust. You can quickly fix it by enabling the debug mode.

Fix 1: Enable Rust debug mode

Please follow the steps below:

• Open Steam.
• Right-click on Rust in your library.
• Choose Properties.
• Select “Betas” tab from the menu.
• Choose “debug –” from the beta list.
• Wait for Steam client to update Rust (It may take some time so be patient).
• Launch Rust and Enjoy the game 🙂

“disconnected integrity error unknown file version” error is gone now 🙂 If you have any problems during the process, you can ask me in the comments below.