BuddyPress.org

If you’re using an older child theme and you’re looking to upgrade to BP 1.5, please read the following:
http://codex.buddypress.org/releases/1-5-developer-and-designer-information/#theme
http://codex.buddypress.org/releases/developer-and-designer-information/

Please read the article above before posting a new topic. Chances are your question has already been answered (hopefully)!

We will attempt to update the codex page as soon as new information is available!

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If you’re a plugin dev looking to upgrade your plugin for BP 1.5, check out these articles in particular:
Fix your older plugin to be compatible with BP 1.5: BuddyPress Media Dev team
Plugin update information : Boone B Gorges
Better Metadata wrappers : Boone B Gorges
Accessing User metadata : Boone B Gorges
Does your BuddyPress plugin or theme modify BP’s navigation menus? : Boone B Gorges
Maintain Backward Compatibility with an abstraction file: Boone B Gorges
Custom Post Types Comments and the Activity Stream in bp 1.5 : Boone B Gorges
Manually modifying single group navigation in BuddyPres 1.5 : Boone B Gorges

All these wonderful links and articles are, of course, also available on our codex:

BuddyPress Codex