The Xbox One March system update contains 5.1 optical sound support over HDMI, new party system and friends list. However, I apply the update on my XBox One and can’t find a way to notify me when my friends come online, and there are messages and party invites in the notifications settings. How can I get the feature on the system.
No, Xbox One doesn’t have such notifications for friends signing in and comes online at the moment. It only gives the number of friends you now have. A good compromise is that you have to mark the people you care about as Favorites, then use the Activity app to see a real-time updated view of they go offline or on.
According to twitter Marc Whitten, the next update will add the familiar function to pop up when any of your Xbox Live friend has come online.