Q:

What is the Magit 2 way to do what wazzup used to?

I used to use Magit <2's wazzup mode to survey unmerged branches or general branch divergence.  What's the right way to do that or some other way to view unmerged branches in Magit 2?

A:

In v2.1 the "branch manager" and "wazzup" were merged into one mode. Such changes are usually being announced in the release notes.

The new Refs buffer combines the features of the old Wazzup and
  Branch Manager buffers into one, more powerful and efficient
  synthesis.  For each reference, cherries can be shown by expanding
  the ref section, but unlike in the Wazzup buffer, the cherries are
  not calculated until the expansion happens, making it vastly more
  efficient.  Besides local and remote branches, the buffer now also
  lists tags, and users can add additional sections listing other
  refs, e.g., stashes.  The format of refs headers is now
  customizable.

The new key binding is y.
By default the number of commits a branch has in addition to those in the current branch are not shown, that would be to expensive when there exist many refs with many additional commits. You can show them using C-y, or you can customize magit-refs-show-commit-count.

