As a quick test, I went ahead and updated my iPad to the latest iOS and published our current folio. The app itself was submitted on Aug 1, 2014. I download the app and it seems to function as expected and is taking pushed updates from InDesign without any problems either.
My question is, do I still need to resubmit if it seems to be working? I don't have any way of user testing so maybe some of you could see if you're having any problems? The app will show up if you search "Carolina Performing Arts" on the App Store.
I would hate to take down the current app and completely resubmit if I don't actually need to.