Andy has changed, with the 1021 revision, the $bp structure, making it an object (it was first an array).
So all plugins with the 1021+ will not work. I’ll update you on plugins status as soon as possible. In this while i suggest to don’t upgrade if you’re using SVN and if you want BPDEV-PLUGINS working 
If you’re a developer look the topic opened by Andy, and look the Changeset in the BuddyPress TRAC
As soon i’ll update you.
