Gregory PERASSO is correct, Supersession is a 10.2 thing... I don't recall if it was F000 or M010.
Nothing to implement really, it's out of the box. The extent of implementation is adding a Tab and including Supersedes... I'll probably get around to doing as Admin so all users see it.
Using it when WTParts are made Obsolete. Unfortunately, it requires manual/visual verification (checking). I wish they had a Business Rule that you could use to evaluate Resulting Objects with an Obsolescence Transition (Release Target).
Screenshot below illustrates. The active (Obsolete) Part is in bold and you can see the full chain... the Part that the Obsolete Part superseded and the part it was superseded by.
