oEmbed support – It’s now super easy to embed videos, images, and other content into the Activity Stream, Forums, and Private Messages.
Fix group auto-join when posting in public groups’ forums
Add Forums tab to user account area to show topics the user has started, and topics that the user has replied to. This includes additional template files to support this new functionality.
Remove root components and replace them with actual WordPress Pages
Add bp_is_multiblog_mode
Add bp_use_wp_admin_bar()
Add oEmbed support
Add the topic’s tags to the edit topic screen
Add new widget areas; there are now five (one in the sidebar, four in the footer).
Add a new forums tab on the member profile page nav; gives you quick access to the topics you’ve started and replied to
Update the main header ‘s background to use a CSS3 gradient instead of an image.