- Stop your server.
- Click "Backup World"
- Select your server's world, then press execute in the top left.
- Click the "Update your server from Steam" button.
- Wait for it to say "The process has completed successfully"
- Go back to game panel home page and click "command line manager"
- Select the "b41.66" command line.
- Startup your server.
If the server doesn't work, let us know in a support ticket, and we will assist you.