How to get back to legacy version?

[The Saint]

Haven't played for a while, and now I wanted to play Underrail with old PSI rules on legacy version. I opened Steam, something begin to update, but before that I changed branch to legacy. Now I started the game and it shows 1.1.2.4. I began new game, and saw new PSI rules :/ What to do, how to get back to 1.1.1.6?

[TheAverageGortsby]

Open up your Steam game client and go to the Library; make sure you're in Online mode

Right-click on UnderRail and select Properties

On the window that pops up, go to the Betas tab

Where it says "Select the beta you would like to opt into:" click on the field below (for me, the drop down arrow doesn't work) and press the down arrow until you see "legacy - Version 1.1.1.6"

(you may need to restart the Steam client.  You shouldn't need to, but you may need to anyway.  If after you select the beta you still end up playing 1.1.2.4 then try closing Steam entirely and restarting it)

That should do it