function bp_groups_group_details_updated_add_activity( $group_id, $old_group, $notify_members ) {

	// Bail if Activity is not active.
	if ( ! bp_is_active( 'activity' ) ) {
		return false;
	}

	if ( ! isset( $old_group->name ) || ! isset( $old_group->slug ) || ! isset( $old_group->description ) ) {
		return false;
	}

	// If the admin has opted not to notify members, don't post an activity item either.
	if ( empty( $notify_members ) ) {
		return;
	}

	$group = groups_get_group( array(
		'group_id' => $group_id,
	) );

	/*
	 * Store the changed data, which will be used to generate the activity
	 * action. Since we haven't yet created the activity item, we store the
	 * old group data in groupmeta, keyed by the timestamp that we'll put
	 * on the activity item.
	 */
	$changed = array();

	if ( $group->name !== $old_group->name ) {
		$changed['name'] = array(
			'old' => $old_group->name,
			'new' => $group->name,
		);
	}

	if ( $group->slug !== $old_group->slug ) {
		$changed['slug'] = array(
			'old' => $old_group->slug,
			'new' => $group->slug,
		);
	}

	if ( $group->description !== $old_group->description ) {
		$changed['description'] = array(
			'old' => $old_group->description,
			'new' => $group->description,
		);
	}

	// If there are no changes, don't post an activity item.
	if ( empty( $changed ) ) {
		return;
	}

	$time = bp_core_current_time();
	groups_update_groupmeta( $group_id, 'updated_details_' . $time, $changed );

	// Record in activity streams.
	return groups_record_activity( array(
		'type'          => 'group_details_updated',
		'item_id'       => $group_id,
		'user_id'       => bp_loggedin_user_id(),
		'recorded_time' => $time,

	) );

}