Hi Earnie,
as always I downloaded the update early and checked. This time I changed the "maximum interval" by reducing all the intervals in the deck to 60 days (number of active cards around 3600, due after change about 1400 cards). I wanted to go back to see all decks (and to see the effect on due cards) and pressed the "back-to-decks-button" - the screen got frozen. After that I pressed the home button of my iPad and restarted your app and it worked fine again.
I tried the whole procedure again - same result: Frozen screen.
There seems to be at least a minor problem.
Kind regards