Supersite for Windows posted Windows Phone 8.1 Tip: Manage App Updates
A quote from the article:
One of the best new features in Windows Phone 8.1 is that the OS, finally, downloads and installs new app updates automatically. This behavior is probably optimal for most users, and you can see which apps have been updated at any time. But you can also configure this behavior in various ways and even disable it if needed.Windows Phone 8.1 Tip: Manage App Updates @ WinSupersite