Conversation so far:
What did Catwoman do with Dc universe?
In June 2016, the DC Rebirth event relaunched DC Comics' entire line of comic book titles, in which Catwoman has a prominent role in the third volume of Batman.
What was her prominent role?
Catwoman continues to be featured in the third volume Batman.

Question: What was the significance?
Self-contained rewrite: What was the significance of Catwoman in the third volume of Batman?