iOS 27 is out now in Australia. It rolled out this week. Apple says to prepare your device first. You should back up your data. You should also check storage space. The update adds new features. Siri has been revamped. New system tools are added. Compatibility extends to iPhone 12 and later models. Recent iPads are also supported. Older devices like iPhone 11 miss out. Users are told to prepare before updating. A backup is essential. Free space is needed. The rollout is underway.