Downgrading Your Euro Truck Simulator 2 Client Version
Revert your local Euro Truck Simulator 2 game client to an older version to match your server using Steam beta branches.
When SCS releases a game update, the dedicated server software update can sometimes be delayed by a few days. You may need to downgrade your local Euro Truck Simulator 2 game to match your server version.
Downgrading Your Game Version
Open Steam Library
Open Steam and click Library. Right-click Euro Truck Simulator 2 and select Properties.
Select a Beta Branch
Navigate to Game Versions & Betas and choose the beta branch you would like to use.
Launch the Game
Launch Euro Truck Simulator 2. Steam will download the selected version automatically.
⚠️ Warning: You may experience issues with any game version rollback.
💡 Tip: Want to also change your server version? Follow the server version guide to downgrade your ETS 2 server.
How is this guide?

Generating a GSLT for Your ETS 2 Server
Generate a Steam Game Server Login Token (GSLT) required for your ETS 2 server to appear in the public server list.
Enabling the Developer Console in Euro Truck Simulator 2
Enable the in-game developer console in Euro Truck Simulator 2, required for exporting mods to your server.