function bp_activity_register_activity_actions() {
	$bp = buddypress();

	bp_activity_set_action(
		$bp->activity->id,
		'activity_update',
		__( 'Posted a status update', 'buddypress' ),
		'bp_activity_format_activity_action_activity_update',
		__( 'Updates', 'buddypress' ),
		array( 'activity', 'group', 'member', 'member_groups' )
	);

	bp_activity_set_action(
		$bp->activity->id,
		'activity_comment',
		__( 'Replied to a status update', 'buddypress' ),
		'bp_activity_format_activity_action_activity_comment',
		__( 'Activity Comments', 'buddypress' )
	);

	/**
	 * Fires at the end of the activity actions registration.
	 *
	 * Allows plugin authors to add their own activity actions alongside the core actions.
	 *
	 * @since 1.6.0
	 */
	do_action( 'bp_activity_register_activity_actions' );

	// Backpat. Don't use this.
	do_action( 'updates_register_activity_actions' );
}