I’m sorry I haven’t looked at the official repositories recently. But in the .iso image there is this old version 6.4.70
Therefore, I have provided the installation method from AUR repositories.
EDIT:
But I am from AUR repositories already in early November. And it was in official repositories after mid-December. That’s why I give info about a different installation than the official repositories. It works identically in the system and is (in many cases) in a higher version.