Yes it does. And what's great is that you can even Answer (you still need to talk on your phone) or Reject Calls, Read and Quick Reply to Text Messages and Read Emails. It is actually a bit more functional than just showing you notifications which I love.
Here's a partial list of apps you can get notifications for:
Alarm
Calendar
Emergency Alerts
Gmail
Google App
Hangouts
Incoming Call and Missed Call
Messages (Text)
Facebook and Facebook Messenger