function bp_core_get_components( $type = 'all' ) {
	$required_components = array(
		'core' => array(
			'title'       => __( 'BuddyPress Core', 'buddypress' ),
			'description' => __( 'It&#8216;s what makes <del>time travel</del> BuddyPress possible!', 'buddypress' )
		),
		'members' => array(
			'title'       => __( 'Community Members', 'buddypress' ),
			'description' => __( 'Everything in a BuddyPress community revolves around its members.', 'buddypress' )
		),
	);

	$retired_components = array(
	);

	$optional_components = array(
		'xprofile' => array(
			'title'       => __( 'Extended Profiles', 'buddypress' ),
			'description' => __( 'Customize your community with fully editable profile fields that allow your users to describe themselves.', 'buddypress' )
		),
		'settings' => array(
			'title'       => __( 'Account Settings', 'buddypress' ),
			'description' => __( 'Allow your users to modify their account and notification settings directly from within their profiles.', 'buddypress' )
		),
		'friends'  => array(
			'title'       => __( 'Friend Connections', 'buddypress' ),
			'description' => __( 'Let your users make connections so they can track the activity of others and focus on the people they care about the most.', 'buddypress' )
		),
		'messages' => array(
			'title'       => __( 'Private Messaging', 'buddypress' ),
			'description' => __( 'Allow your users to talk to each other directly and in private. Not just limited to one-on-one discussions, messages can be sent between any number of members.', 'buddypress' )
		),
		'activity' => array(
			'title'       => __( 'Activity Streams', 'buddypress' ),
			'description' => __( 'Global, personal, and group activity streams with threaded commenting, direct posting, favoriting, and @mentions, all with full RSS feed and email notification support.', 'buddypress' )
		),
		'notifications' => array(
			'title'       => __( 'Notifications', 'buddypress' ),
			'description' => __( 'Notify members of relevant activity with a toolbar bubble and/or via email, and allow them to customize their notification settings.', 'buddypress' )
		),
		'groups'   => array(
			'title'       => __( 'User Groups', 'buddypress' ),
			'description' => __( 'Groups allow your users to organize themselves into specific public, private or hidden sections with separate activity streams and member listings.', 'buddypress' )
		),
		'blogs'    => array(
			'title'       => __( 'Site Tracking', 'buddypress' ),
			'description' => __( 'Record activity for new posts and comments from your site.', 'buddypress' )
		)
	);

	// Add blogs tracking if multisite.
	if ( is_multisite() ) {
		$optional_components['blogs']['description'] = __( 'Record activity for new sites, posts, and comments across your network.', 'buddypress' );
	}

	switch ( $type ) {
		case 'required' :
			$components = $required_components;
			break;
		case 'optional' :
			$components = $optional_components;
			break;
		case 'retired' :
			$components = $retired_components;
			break;
		case 'all' :
		default :
			$components = array_merge( $required_components, $optional_components, $retired_components );
			break;
	}

	/**
	 * Filters the list of component information.
	 *
	 * @since 2.6.0
	 *
	 * @param array  $components Array of component information.
	 * @param string $type       Type of component list requested.
	 *                           Possible values are 'all', 'optional', 'retired', 'required'.
	 */
	return apply_filters( 'bp_core_get_components', $components, $type );
}