After installing the latest beta just now, I opened the Preferences dialog and was greeted with this:
I have no idea what this means. I did successfully set the pref I wanted and close the window, however...
1Password Version: 7.8.1.BETA-0 (70801000)
Extension Version: Not Provided
OS Version: 11.3 Beta (20E5217a)
Sync Type: Not Provided