• Detect broken dependencies for scripts and styles.
• Calculate and output the dependents of scripts and styles.
• Add transparent support for Debug Bar add-on panels.
• Add support for WordPress.com VIP plugins in the component detection.
• Sortable and filterable columns for HTTP requests.
• Display a warning when something's hooked onto the all action.
• Clearer output for the template file and component names when a child theme is in use.
• Move the current blog information to the Request component. Display current site information if we're running a multi-network.
• Allow default error handlers, such as error logging, to continue to function as expected.
• Don't skip outputting the calling function name in the database error list.
• New namespaced filter names for a bunch of filterable things.
• Add a qm/process filter to allow users to disable QM's processing and output.
• Display the value of WP_HTTP_BLOCK_EXTERNAL and WP_ACCESSIBLE_HOSTS in the HTTP component.
• New storage and registration mechanisms for collectors, dispatchers, and output handlers.
• CSS tweaks to better match wp-admin styles.