My bad! With all my due respect, I thought because it is a “rolling release” it would be enough to just
yay
Saved a lot of keystrokes 
So I have to follow up if there is something new in a new release and install the missing package(s)
Is there a command I can know which version is installed or which ISO? Something that repiles to me “you have Artemis”
OR better a command to upgrade the old to the current and install what is missing?
Would this (arch-upgrade) be the answer to my question?