Hi presianbg
As it's beta it will have bugs, that said:
- Remove Ulauncher version 5,
sudo eopkg rm ulauncher
- Download the beta from here to a temporary location
- Extract the ulauncher folder and
cd
to it in a terminal
- Run
sudo ./setup.py install
It should add a keyboard shortcut to the system, if not you can do it manually by creating a global shortcut and setting your preferred shortcut combination. (I found Ulauncher > Preferences > Set Hotkey to be buggy).:
Name: Show Ulauncher
Exec: gapplication launch io.ulauncher.Ulauncher
It should pick up previous config from version 5, but some extensions may not work (they'll be flagged with an error tag and disabled in settings)
Good luck!