I love the StackExchange app, great stuff! Push notifications worked for a few days, then suddenly stopped. Just thought I'd report it here.
iPhone 5s, iOS 8.1, StackExchange 1.2.0.
This was related to a recent server failover we had recently, as I understand it.
You should now receive many of those push notifications you were missing. Or, at least, should start seeing new push notifications.