Apple has released the beta 2 of macOS Sierra 10.12.4, which incorporates a sleepy lighting mode that iOS users have known for years. The trial version is available for both public beta developers and developers.
Apple has the beta 2 of macOS Sierra 10.12.4 published (Build 16E154a) for paid developers and participants of the test program Apple Seed. The new operating system since the Beta 1 includes a Night-shift mode, the it in iOS are Version 9.3 The theory is that one can fall asleep by bright blue light in the evening because it influences the inner rhythm becomes.
Nightshift uses the clock of the Mac and its whereabouts to calculate the time of the sunset. Then the change of the colors is made automatically. In the morning the display returns to the default settings.
In addition, the dictation function now supports the Chinese language Wu and Siri can research cricket player results. Further functions of the new software version are not yet known.
The beta 2 of macOS Sierra 10.12.4 is distributed via the Apple Developer Center or via the Mac App Store and can be installed on registered devices.