Last modified: 2013-05-01 17:37:59 UTC
Unregistered users don't have access to Echo. But it appears that they no longer get the You Have New Messages message either (the Orange Bar). So they are no longer notified of new talkpage messages. See http://en.wikipedia.org/wiki/Wikipedia_talk:Notifications#IP_notifications
Hooks.php :: abortNewTalkNotification() if ( $recipient->getOption( 'echo-notify-show-link' ) && isset( $wgEchoNotifications['edit-user-talk'] ) ) { Should most likely become: if ( $recipient->isLoggedIn() && $recipient->getOption( 'echo-notify-show-link' ) && isset( $wgEchoNotifications['edit-user-talk'] ) ) {
Fixed on English Wikipedia.