Apple has released iOS 12.4 Beta 1 to registered developer for testing. This new beta came out after a few days of releasing iOS 12.3 to the public that mostly included a newly updated TV app for iPhone and iPad.
This new beta can be downloaded by developers by installing the appropriate configuration profile from the Apple Developer Center and using the OTA mechanism.
We are still unknown what new changes this new iOS version includes but we expect that it just includes an improvement under the hood as the brand new iOS 13 will be released next month. So don’t expect new features in this new iOS version.
But we will keep an eye on and test the iOS 12.4 beta 1 and let you know if we find anything new.