Apple distributed the first beta of macOS 10.13.4 and tvOS 11.3 to paid developers. There is an innovation in macOS: users of 32-bit applications are advised that support for it is about to end.
Apple says that there is still no time to stop supporting 32-bit applications, but it's likely that Apple will have support in either this or the nc give up altogether at the end of the year. These warnings are intended to inform users that some of their favorite applications may not work in the future. These warnings were already in iOS 10.
While the warnings will only appear on macOS 10.13.4 Beta, users will see these warnings as soon as the operating system is released in the spring. When the public beta of macOS 10.13.4 comes is not known.
Apple also released the first developer beta of tvOS 11.3 for Apple TV fourth generation and the Apple TV 4k. The new beta follows one day after the release of tvOS 11.2.5. When used with iOS 11.2.5, the track played will appear on the Apple TV in the control center of the iPhone and iPad.
In the future, tvOS will support AirPlay 2: In beta, the feature has not yet been unlocked.