Apple today seeded the
Third Beta of an upcoming
macOS Sierra 10.12.4 update to developers, two weeks after seeding the
second macOS Sierra 10.12.4 beta and just under a month after releasing
macOS Sierra 10.12.3.
The
Third macOS Sierra 10.12.4 Beta is available for download through the
Apple Developer Center or the software update mechanism in the
Mac App Store for those who have previously installed a beta.
macOS
Sierra 10.12.4 brings iOS's
Night Shift mode to the Mac for the first time. First introduced on iOS devices with iOS 9.3, Night Shift is designed to gradually shift the display of a device from blue to yellow, cutting down on exposure to blue light. Blue light is said to disrupt the circadian rhythm and is believed to interrupt sleeping patterns.
Night Shift can be activated through the
Displays section of System Preferences, where a setting to have it come on at sunset and turn off at sunrise is available. Night Shift can also be toggled on manually through the **tification Center or via
Siri.
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The
10.12.4 update focuses mainly on Night Shift, but also includes dictation support for Shanghainese, cricket scores for Siri, improved PDFKit APIs, and
iCloud Analytics options.
Related Roundup:
macOS Sierra
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