Bought Divinci 20, But Received Divinci 19?

EDIT: I think I understand now. Looks like 20 is still in Beta. But I'm still confused why it seemed to suggest I was buying 20 and then delivered 19. If 20 is free with the purchase of 19, I would have preferred to buy 20 and get 21 free with that purchase. The website just wasn't clear.

I've attached the screenshot from the website with the link I clicked. Why did it download 19 instead of 20? I thought I was buying 20.