iOS 27 is live in Australia. It rolled out this week. Apple says to prepare your device first. You should save your important files. You should also check storage space. The update introduces new features. Siri has been rebuilt. Fresh system utilities are added. Compatibility includes iPhone 12 and later models. Recent iPads are also supported. Older devices like iPhone 11 miss out. Users are advised to prepare before updating. A backup is recommended. Free space is important. The rollout is underway.