BuddyPress was updated to version 1.9, from version 1.8.1. Changelog highlights:

• The new Notifications component, which adds a Notifications menu to user profiles
• New widgets: Friends, Log In, Sitewide Notices
• Dynamic BuddyPress links for nav menus created at Dashboard > Appearance > Menus

A full list of changes can be found in the BuddyPress Codex.