Google's Advice On Pagination & Page Series Post rel=next and rel=prev

As you know, Google told us they just realized that rel=next and rel=prev is no longer supported for the past year or so. Yea, I know. So now what? How do you ensure Google can find your paginated content? How do you communicate to Google a series of pages is part of a set? Mihai Aperghis asked Google's John Mueller a series of hard questions this morning in the webmaster hangout addressing this.