What happened to the facebook notifications?

Hi all. The subject line asks the question, because before the latest update, when a facebook comment from someone on my list came in, it showed up on the notification list. Now, when I get comments, Idon't see them unless Igo into the ap which can be kind of annoying. If this has been answered in that large facebook forum, I'ms orry I hadn't read that yet. Thanks for any answers.