Apple has released iOS 11.4 Beta 2 to registered developers.
The build includes several features that were meant to be included in iOS 11.3, but didn’t make the final release. These include AirPlay 2 and Messages on iCloud, which allows people to store their iMessage content in the cloud and sync it across devices.
Developers should be able to download and install iOS 11.4 Beta 2 over the air. Apple will likely make the same beta available to public testers later this week.