A lot of us use SteamCMD to update our servers, and it's not immediately obvious how you're supposed to change branches. It's really simple, you just need to add the -beta argument. Here's part of the update script I run on my server: Code: c:\steamcmd\steamcmd +login anonymous +force_install_dir c:\spaceengineers\ +app_update 298740 -beta develop +quit If, for whatever reason, you're using the steam desktop client to get your server files, right click Space Engineers in your library, select properties, then the 'Betas' tab. Select 'develop' in the drop-down, then hit close. Steam should download the new files automatically.