On the beginning of June Apple will probably present first information connected with iOS 12, but a few days before this event creators of iPhones released the newest update of iOS 11 system to 11.4 version. New version adds some new interesting features and update solves many errors which have been reported by users.
The most interesting new features are Messages in iCloud and desired features in AirPlay 2. Both from mentioned functions were announced by Apple in previous year. AirPlay 2 is an technology which was announced on WWDC 2017 conference, and thanks to this app users will have option of sharing sound or video with other devices connected with Apple TV. New update also adds calendar support for Apple's HomePod smart speaker, but what's interesting this function won't be available for people from Canada, France and Germany until the last months of this year. You can download new update after checking Software Update in General Settings on your device.