This has replaced the built in camera app for me since iOS 6, I think it was 6, maybe 7.
I see some reviewers complaining about the snark in these release notes.
Come on people. I, for one, appreciate the release notes.
There are developers out there who jump at every chance they get to charge for an update that should otherwise be free.
These guys not only have the best camera app available on the App Store, but they also keep it updated with each new iOS iteration, and they do it for free!
Let them write about that (and whatever they want to) in the release notes.
Maybe other devs will catch on and follow suit, stop making me pay for your app over and over again: (cough, cough Reeder; cough, Tweetbot, etc.)