Apple released macOS Sierra 10.12.4 Beta 2 (16E154a), two weeks after the first beta. This beta release is available from the Apple Developer Center or within the Mac App Store, if you have previously installed a beta.
The 10.12.4 update improves the stability, compatibility, and security of your Mac, according to Apple. There is no other detailed information what has changed exactly. Here is what we know so far about macOS Sierra 10.12.4 :
- Night Shift preference for automatically shifting the colors of your display to the warmer end of the spectrum after dark
- Siri support for checking Cricket scores, schedules, and player rosters from the Indian Premier League and International Cricket Council
- Dictation support for Shanghainese
- Reading, writing and navigating PDFs using system-provided APIs