iOS 27 is out now in Australia. It rolled out this week. Apple says to get your phone ready first. You should save your important files. You should also review available capacity. The update adds new features. Siri has been rebuilt. Additional system apps are added. Compatibility extends to iPhone 12 and later models. Recent iPads work too. Older devices like iPhone 11 miss out. Users are told to prepare before updating. A backup is recommended. Free space is required. The rollout is being released.