The update, which became available for download Monday, adds support for Apple Pay, brings back the camera roll and launches the iCloud photo library.
The products will serve as the showcase devices for the latest version of Android, Lollipop, until now nicknamed Android "L."
Have questions about Apple Pay? We've got answers.
This likely means that Apple is preparing its back-end technology to handle the preorder payload.
With Thursday's event just a few hours away, Apple has taken down its retail site as it likely preps it to showcase new products.
Customers can now order the iPad Air 2 and iPad Mini 3 tablets, which will be released next week.
Forget plugging in. Ampy stores up battery power by converting your movements into energy so you can charge your gadgets with the power of motion.
If you are using Family Sharing, you can easily hide apps from your Purchased list. Unhiding app purchases, however, requires iTunes.
Commentary: OK, people, cut it out. Walking into Apple Stores to secretively bend iPhones doesn't help anybody, says Crave's Amanda Kooser.
In this data snapshot, the new version of iOS was spotted on almost half of all devices that checked in at Apple's App Store on Sunday.