Update 9/18/2018: Aralinks Reader is not yet compatible with iOS 12.
Apple’s next major release of firmware for iPads and iPhones (iOS 12) will be released sometime this September 2018. However, the school strongly advises all Apple iPad users to hold-off updating immediately after the official release. It is usually recommended to upgrade after the next minor release (e.g. 12.1) to allow Apple to sort out any bugs and upgrade issues.