Just one day after putting the new version of the system into circulation macOS High Sierra 10.13.3, Apple continues with its beta machinery and already puts the first beta of the next version macOS High Sierra 10.13.4 for developers.
Keep in mind that the final version put into circulation yesterday focused on system security, that if you have followed the news related to Apple in recent weeks, due to problems with Intel processors, the thing regarding security in the Mac was a little raw.
Apple just released the first beta version of the upcoming macOS High Sierra 10.13.4 update for developers, a day after releasing the macOS High Sierra 10.13.3 update focused on security improvements. The new macOS High Sierra 10.13.4 beta can be downloaded from Apple's developer center or via the software update mechanism in the Mac App Store with the appropriate profile installed.
We don't yet know what improvements the fourth official macOS High Sierra update will bring, but it will likely include bug fixes and performance improvements for issues that were not addressed in macOS High Sierra 10.13.3. It can also include some of the features that come in iOS 11.3, such as Business Chat support and unlimited ad-free access to music videos on Apple Music, which according to Apple, will be the new "home" for music videos.
The previous update of macOS High Sierra 10.13.3 included security fixes and performance improvements, without introducing appreciable external changes. If you are a developer or you usually install this type of betas, you can get down to work and share with us any news you may see in terms of appearance or mode of operation.