[WindowsCentral.com]

Changelogs. Theyre the list of reasons why we want to update an app or game. Its the simplest thing that some app creators often ignore. Its baffling. Version 1.2 of your app is out? Great, umm, why do I care unless you tell me?
Granted, in Windows Phone 8.0, and earlier there was no real region for a proper list of changes, resulting in some developers creating pop-up screens detailing the fixes upon first launch, or a separate area under About where they can detail their continuing hard work, or even jamming it under the app description in the Store. It wasnt ideal, but people definitely appreciated the effort.
But developers, you no longer have such an excuse with Windows Phone 8.1. And we hope you notice.

Full story from the WPCentral blog...