iOS 11.4 beta appears to mostly focus on minor bug fixes and enhancements, though testing of the Messages on iCloud feature is included as well. iMessages in iCloud aims to improve syncing of iMessages across devices by maintaining all Messages and iMessage content directly in iCloud. iOS 11.4 will bring users new features such as air-to-air playback and iCloud information cloud synchronization.
Apple released iOS 11.4 beta 6, the official version is coming soon
Apple introduced the sixth beta system update of iOS 11.4 to developers in the early hours of this morning, only 3 days after beta 5. So frequent updates suggest that the official version of iOS 11.4 is coming. The beta 6 version number has been adjusted from 15F5077a to 15F5079a. Developers can update via OTA or go to the Apple Developer Center website to download firmware updates.
