I've updated my non-rooted, Nexus 5 with an OTA update to Android 5.0 Lollipop and since then I have noticed quite a few things. I am not sure if those are bugs or not.
- The Proximity Sensor does not turn off the screen when I am on the call. Network Calls or Viber or Google Hangouts, all the same.
- When any notification arrives, the notification is not clickable. I.E when any hangout call or WhatsApp message arrives, they cannot be clicked until the notification bar is dragged down.