Apple has released iOS 11.4 beta 4 for developers to test on their mobile devices, along with new betas of their other mobile and desktop operating systems.

Here’s what’s available:

• iOS 11.4 beta 4 (15F5071a)
• macOS High Sierra 10.13.5 beta 4 (17F66a)
• watchOS 4.3.1 beta 4 (15T5565a)
• tvOS 11.4 beta 4 (15L5570a)

This release comes just six days after the release of third betas last week, signalling a final release should be coming soon.

iOS 11.4 beta includes two highly awaited features: Messages in iCloud and AirPlay 2. Stay tuned as we share what’s new in this latest release.