iOS 27 is available in Australia. It went live this week. Apple says to prepare your device first. You should save your important files. You should also check storage space. The update brings 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 do not qualify. Users are advised to prepare before updating. A backup is essential. Free space is needed. The rollout is happening now.