For code written against the plugin. WPDraftsForFriends no longer exists — it is WP_DraftsForFriends plus seven WP_DraftsForFriends_* classes under includes/. The wp_ajax_draftsforfriends_admin endpoint is removed, because every write is now an ordinary form post. There is one new filter, wp_draftsforfriends_capability, deciding who may reach each tab; it also answers option_page_capability_wp_draftsforfriends_options, so a filtered settings capability governs the save and not only the screen. No hook was renamed, because the plugin previously fired none of its own.