Re: Which WordPress and bbPress version combination?
I tried integrating WordPress 2.8 with bbPress 0.9.0.5 today but I found out that it can’t be done as per my tutorial because WP 2.8 has added one more function by which they change how they handle login so “Freshly baked cookies” plugin is broken for WP 2.8 at the moment. I would suggest integrating WP 2.7.1 with bbPress 0.9.0.5
Apart from new Widgets functionality, theme installing capability and some back-end performance improvement, you won’t miss much
Or you can wait for a few days for bbPress 1.0 which will integrate with WP 2.8 without any pain.