One of the things that changed with the new edition is that medication-induced bipolar symptoms are now counted toward a diagnosis of BP. And some of the definitions have also changed, e.g. instead of a "mixed episode" they call it " bipolar x with mixed features" or "psychotic features". I think they're splitting hairs on that one, but I didn't write the book. And bipolar 2 can have mixed features.

I think it would be interesting to do a compare/contrast with bipolar and BPD. A lot of the symptoms do overlap as you know.

I'll try to think of some other stuff later. I have to go see my sister at her assisted living facility, which I don't do very often because she is one of my worst triggers. But duty calls, so off I go.