function bbp_update_forum( $args = array() ) {

	// Parse arguments against default values
	$r = bbp_parse_args( $args, array(
		'forum_id'           => 0,
		'post_parent'        => 0,
		'last_topic_id'      => 0,
		'last_reply_id'      => 0,
		'last_active_id'     => 0,
		'last_active_time'   => 0,
		'last_active_status' => bbp_get_public_status_id()
	), 'update_forum' );

	// Update the forum parent
	bbp_update_forum_id( $r['forum_id'], $r['post_parent'] );

	// Last topic and reply ID's
	bbp_update_forum_last_topic_id( $r['forum_id'], $r['last_topic_id'] );
	bbp_update_forum_last_reply_id( $r['forum_id'], $r['last_reply_id'] );

	// Active dance
	$r['last_active_id'] = bbp_update_forum_last_active_id( $r['forum_id'], $r['last_active_id'] );

	// If no active time was passed, get it from the last_active_id
	if ( empty( $r['last_active_time'] ) ) {
		$r['last_active_time'] = get_post_field( 'post_date', $r['last_active_id'] );
	}

	if ( bbp_get_public_status_id() === $r['last_active_status'] ) {
		bbp_update_forum_last_active_time( $r['forum_id'], $r['last_active_time'] );
	}

	// Counts
	bbp_update_forum_subforum_count( $r['forum_id'] );

	// Only update topic count if we've deleted a topic
	if ( in_array( current_filter(), array( 'bbp_deleted_topic', 'save_post' ), true ) ) {
		bbp_update_forum_reply_count(        $r['forum_id'] );
		bbp_update_forum_topic_count(        $r['forum_id'] );
		bbp_update_forum_topic_count_hidden( $r['forum_id'] );
		bbp_update_forum_reply_count_hidden( $r['forum_id'] );
	}

	// Update the parent forum if one was passed
	if ( ! empty( $r['post_parent'] ) && is_numeric( $r['post_parent'] ) ) {
		bbp_update_forum( array(
			'forum_id'    => $r['post_parent'],
			'post_parent' => get_post_field( 'post_parent', $r['post_parent'] )
		) );
	}

	// Bump the custom query cache
	wp_cache_set( 'last_changed', microtime(), 'bbpress_posts' );
}