Not sure. As far as I can tell the only thing that has changed is the mm adjustment to the mute switch. If the current case is tight around it then chances are it would not work.
Is there something else that has changed?
I think that's it that is making some cases compatible and some not.
It's hard to tell from pictures whether they are or not. Some looks like it wouldn't fit but they say it does, while some looks like it would fit but say they don't.