Note that "bbPress 1.2" is an entirely different program than all previous versions of bbPress. It will contain very little code from bbPress 1.1

They simply hijacked the name because, well because Matt can just say so on a whim and abandon the 10k+ existing users.

I've asked repeatedly for a name change or at least calling it 2.0 instead of 1.2 because of the massive differences and how no existing themes/plugins will be compatible, but it doesn't look like they are even going to honor that.

So when you say they are "getting a divorce" keep in mind it's not even the same entity, as confusing as that is.