Divi 5 Mastery ll vs the new Divi Design System course

I have previously purchased the Divi 5 Mastery ll Course. Is this new "Divi 5 Design System" a completely new course which requires a new purchase?

Mak, you do an outstanding job of managing this community and putting out excellent resources and content. One thing that could be better is your product naming. It gets very confusing at time differentiating what is a new course/plugin and what is an old one.