Apple today released macOS Sierra 10.12.4, the fourth major update to the macOS Sierra operating system that launched on September 20. macOS Sierra 10.12.4 has been in testing since January 24, with Apple having seeded eight betas ahead of its public release.

macOS Sierra 10.12.4 is a free update for all customers who are running macOS Sierra. The update can be downloaded using the Software Update function in the Mac App Store.

macOS Sierra 10.12.4 brings iOS’s Night Shift mode to the Mac for the first time. Night Shift, first introduced on iOS devices in iOS 9.3, is designed to gradually shift the display of a device from blue to a subtle yellow, cutting down on exposure to blue light. Blue light is believed to interrupt the circadian rhythm, disrupting sleep patterns.

Night Shift is 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. It can also be set to turn on and off at custom times. Night Shift can also be toggled on manually using the Notification Center or Siri.

The 10.12.4 update focuses primarily on Night Shift, but the update also includes dictation support for Shanghainese, cricket score integration for Siri, improved PDFKit APIs, and new iCloud Analytics options.

Update: Apple has also released a new 2017-001 security update for OS X Yosemite and OS X El Capitan.

Popular Stories

Source: Apple to Announce New Products This Week

Apple plans to announce new products with press releases on its website this week, a proven source familiar with the matter told MacRumors. While the products that Apple plans to announce have not been disclosed, there are rumors about new iPads, Macs, and accessories. It is unclear exactly what will be announced this week. Bloomberg’s Mark Gurman today reiterated that Apple is planning new…

Apple Changes Trade-In Values for iPhones, iPads, and Apple Watches

Apple today adjusted its estimated trade-in values for select iPhone, iPad, and Apple Watch models in the U.S., with the changes reflected on its website. Apple slightly increased trade-in values for the iPhone 14 Pro Max, second-generation iPhone SE, Apple Watch Series 4, and first-generation Apple Watch SE, while trade-in values slightly decreased for the entry-level iPad, Apple Watch…

iOS 17.4 Out Now: 10 New Things Your iPhone Can Do

Apple has released iOS 17.4, its biggest iPhone software update of the year so far, featuring a number of features and changes that users have been anticipating for quite a while. Below, we’ve listed 10 new things that your iPhone will be able to do after you’ve installed the update, which became available on Tuesday, March 5. Be sure to check Settings ➝ General ➝ Software Update on your …

Apple Announces New MacBook Air Models With M3 Chip

Apple today announced new 13- and 15-inch MacBook Air models with M3 chip, improved external display support, Wi-Fi 6E, and more. Apple says that the new MacBook Air is up to 60% faster than the M1 model and up to 13x faster than the fastest Intel-based MacBook Air. With a faster and more efficient Neural Engine, Apple says that the MacBook Air continues to be “the best consumer laptop for…