The iOS update was a bug fix.

Think about the differences between iOS development and Android development, though. When you develop an iOS app, you only have to worry about a couple screen sizes, a handful of hardware configurations and a few different OS versions. Android is a morass of hundreds of different devices with slightly different hardware and 7 different OS APIs in common use to worry about. The number of possible targets to deploy for is exponentially larger for Android than for iOS, so there's a lot more QA that it requires.