Can someone explain the purpose of 8.1 (CLOSED) (CLOSED)

I thought that it had something to do with the face and the body was the same but smart content does find clothes, hair or poses from 8 to 8.1

Moneygrab

"Can someone explain the purpose of 8.1"

It was to create a new revenue stream for DAZ until G9 was ready. 

Official page about Genesis 8.1: https://www.daz3d.com/genesis-8-1

There are a few improvements (skin, more morphs) compared to GF8.

G9 ) 7 multi sub object

G8 ) 16 multi sub object

G8.1 ) 17 multi sub object