I have ArtRage Pro version, I purchased it few years ago (maybe 6-8...ish years ago?) but never fully looked into it. I'm a Photoshop and traditional art user and wish to move on with ArtRage; now is a good timing and I want to use it at professional level

So I've upgraded my old version to 3.5.12 (and it says it's the last version) on PC, but I'm watching a tutorial (below) with "the theater professor" who says he's using the version 4.5 or 5 for PC.
His "Settings" page has more options than mine; he also talks about importing brushes from Photoshop and I don't have the option...

So I'm confused. I believed the "Pro" version would be the more complet version... but maybe there's better now?
Is there a page where the two (5 and Pro 3) are compared?
Where can I verify if I have THE version I wish?

Thank you for pointing me into the right direction ^_^
I'm open to your opinion on the matter too! ^_^