Hands-On With the New Night Shift Mode in macOS Sierra 10.12.4Hands-On With the New Night Shift Mode in macOS Sierra 10.12.4 macOS Sierra 10.12.4, seeded to developers this morning, introduces a major new feature: Night Shift for the Mac. First introduced for iOS devices in iOS 9.3, Night Shift is designed to gradually shift the display of a device from a blue tint to a more yellow tint during the evening, cutting down on exposure to blue light. A quick over
