If you don't want to run Arma 3 on the latest public version and would rather use a different beta branch to play an older version, here's how to change the version of your Arma 3 server.

Danger

Changing your server version reinstalls the game files. Download a backup first if you want to keep anything important.

Changing Steam Beta Version

1
Log in to Bropanel and Stop your server.
2
In the sidebar, go to Settings.
3
Under Advanced, edit Steam Beta Branch with the version you want to use (a list of versions is below).
4
Click Reinstall in the top-right.
5
Select Format (keep settings), then confirm and wait for the install to finish.

Here are the currently available beta branches to choose from. They can be found here:

Arma 3 Beta Branches.

Leave the field blank for the latest public version.

Note

This Steam Beta Branch setting is also where Creator DLCs are enabled. See our Creator DLCs guide for the steps.

How to Change the Version of Your Arma 3 Server

Changing Steam Beta Version

Run your own Arma 3 server

Run your own Arma 3 server