I am developing a Xamarin.Forms app and I actually use Hockey App to distribute the app to the tester.
I had a look at Visual Studio Mobile Center but I did not find any documentation related to notification update.
Does this feature exist using Visual Studio Mobile Center ?
In-app update is on the backlog for Mobile Center, but not supported today. It is a high priority item for us and we are working towards it.
I'm curious which type of user authentication you used, or would prefer to use in Mobile Center.