Apple Seeds Sixth Beta of macOS Sierra 10.12.4 to Developers [Update: Public Beta Available Too]

Apple today seeded the sixth beta of an upcoming macOS Sierra 10.12.4 update to developers, just under one week after seeding the fifth macOS Sierra 10.12.4 beta and over a month after releasing macOS Sierra 10.12.3.

The sixth 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-10-12-4-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 Notification Center or via Siri.


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.

Update: Apple has also made the sixth beta of macOS Sierra 10.12.4 available for public beta testers.

Top Rated Comments

TMRJIJ Avatar
49 months ago

I hate these beta updates. They're so boring and depressing after a while, hoping for some Macbook 2017, iMac, or other exciting news.

You don't have to install the beta. You also don't have to read this article either.
Score: 11 Votes (Like | Disagree)
C DM Avatar
49 months ago

" macOS Sierra 10.12.4 brings iOS's Night Shift ('https://www.macrumors.com/roundup/night-shift/') mode " This ive been reading with the past FIVE updates. Uptill now it was just (very many) bug fixes and security holes. With that OS starts to look more and more like Windows!

I hate these beta updates. They're so boring and depressing after a while, hoping for some Macbook 2017, iMac, or other exciting news.

What are people expecting from beta updates for the same version, something new in each beta? That's not really how that works.
Score: 7 Votes (Like | Disagree)
xSeaside Avatar
49 months ago
RELEASE THE KRAKEN!!!
Score: 5 Votes (Like | Disagree)
bingeciren Avatar
49 months ago
I hope the PDFKit solves the jittery autosave problem, which is my main reason to downgrade and stay with El Cap so far.
Score: 3 Votes (Like | Disagree)
nutmac Avatar
49 months ago

Ok beta testers, are we getting close to a release with this version?

I would say so. Aside from Night Shift, macOS Sierra 10.12.4 adds only a handful of minor features (Siri, PDFKit) and bug fixes.

I was hoping for APFS in-place migration for external volumes but I guess that will wait until 10.13.
[doublepost=1489430035][/doublepost]

Have they said when APFS (Apple File System) is coming to MacOS ?

It's already in macOS Sierra, although it's worth noting that volumes formatted with 10.12.0 may not work on later versions.

If you mean when macOS will be able to use APFS for startup volume, as well as missing support for FileVault, Time Machine, and Fusion Drive, I would say 10.13 in October. Furthermore, many major apps don't work with APFS startup volume (due to hard coded case insensitive file path).
Score: 3 Votes (Like | Disagree)
star-affinity Avatar
49 months ago

" macOS Sierra 10.12.4 brings iOS's Night Shift ('https://www.macrumors.com/roundup/night-shift/') mode " This ive been reading with the past FIVE updates. Uptill now it was just (very many) bug fixes and security holes. With that OS starts to look more and more like Windows!

What are you trying to say? I don't think I understand, sorry.
Score: 3 Votes (Like | Disagree)

Top Stories

windows 10

Developer Successfully Virtualizes Windows for Arm on M1 Mac

Friday November 27, 2020 7:16 am PST by
Developer Alexander Graf has successfully virtualized the Arm version of Windows on an M1 Mac, proving that the M1 chip is capable of running Microsoft's operating system (via The 8-Bit). Currently, Macs with the M1 chip do not support Windows and there is no Boot Camp feature as there is on Intel Macs, but support for Windows is a feature that many users would like to see. Using the...
iPhone black friday 20 sale feature

Apple Black Friday 2020: Best iPhone Deals

Friday November 27, 2020 12:56 pm PST by
Black Friday is halfway done, but there are still a few deals to shop for on iPhones at carriers like AT&T, Verizon, and T-Mobile/Sprint. Note: MacRumors is an affiliate partner with some of these vendors. When you click a link and make a purchase, we may receive a small payment, which helps us keep the site running. AT&T Starting with AT&T, you'll find up to $700 off any iPhone 12 when...
AirPods Pro black friday 20 sale feature 2

Black Friday 2020: AirPods Pro Reach Lowest Price Ever [Updated]

Wednesday November 25, 2020 3:22 pm PST by
Black Friday has kicked off this week, and one of the first major sales for the AirPods Pro is available right now on Walmart. You can find this deal below, along with a few other solid discounts on the regular AirPods. Note: MacRumors is an affiliate partner with some of these vendors. When you click a link and make a purchase, we may receive a small payment, which helps us keep the site...
Apple Watc black friday 20 sale feature

Apple Black Friday 2020: Best Apple Watch Deals [Updated]

Wednesday November 25, 2020 4:01 pm PST by
Black Friday sales have begun on a variety of products, including the Apple Watch. There are quite a few deals across the Apple Watch lineup this year, including one of the lowest price we've ever seen the Apple Watch Series 3. Note: MacRumors is an affiliate partner with some of these vendors. When you click a link and make a purchase, we may receive a small payment, which helps us keep the...
iphone trade in store

UK Environmental Committee Says Apple Contributing to 'Throwaway Culture' of 'Short-Lived Products'

Thursday November 26, 2020 7:07 am PST by
Technology companies like Apple are contributing to e-waste by making their products difficult to repair, and charging expensive repair fees, according to a lengthy report published today by the UK Parliament's Environmental Audit Committee. "We were told that Apple glues and solders parts together on their laptops, which makes repairing them very difficult," the Committee wrote in a summary ...
MacBooks black friday

Apple Black Friday 2020: Best Mac and MacBook Deals

Thursday November 26, 2020 8:29 pm PST by
For Black Friday 2020, many retailers have solid deals on a variety of Macs. Apple's new M1 Macs are ones everyone wants right now, but because they're so new, deals on them are fairly sparse, although we are seeing some modest discounts. Note: MacRumors is an affiliate partner with some of these vendors. When you click a link and make a purchase, we may receive a small payment, which helps...
Top Stories 38 Feature

Top Stories: Black Friday Deals, Redesigned MacBooks, Hands-On With Apple's M1 Macs

Saturday November 28, 2020 6:00 am PST by
With Apple's holiday hardware lineup seemingly all set, attention this week turned to the shopping end of things with Apple and other retailers rolling out their Black Friday deals. That wasn't the only news this week, however, as we've continued to learn more about Apple's new M1-based Macs and we've even heard some fresh rumors about redesigned Mac notebooks coming next year, so read on...
General black friday 20 sale feature 2

Apple Black Friday 2020: Our Top Picks

Friday November 27, 2020 6:16 am PST by
Black Friday shopping has officially kicked off across the United States, and we've been collecting the best deals for Apple's iPads, Macs, AirPods, the HomePod, Apple Watch, and more in separate articles. In order to further streamline your Black Friday shopping this year, we've put together this quick list of our top picks of the overall best Apple-related bargains happening today. Note:...
mac mini macbook pro macbook air

Apple M1 Hands-On Comparison: MacBook Air vs. MacBook Pro vs. Mac Mini

Monday November 23, 2020 3:40 pm PST by
Apple's M1 Macs are out in the wild now, but ahead of the holidays, you might still be trying to figure out which one to pick up, either for yourself or as a gift for someone else. We've got all three of the new Macs available, so we thought we'd give MacRumors readers a hands-on overview of each machine in our latest YouTube video. Subscribe to the MacRumors YouTube channel for more videos. ...
General black friday 20 sale feature

Thanksgiving Day Deals Still Available on AirPods, M1 Macs, Apple Watch Series 6, iPads

Thursday November 26, 2020 10:21 am PST by
Black Friday deals seem to start earlier and earlier every year, so there were already a wide variety of discounts available for Apple products on Thanksgiving Day. Many of the deals remain available even after Thanksgiving, but act fast, as inventory quickly fluctuates. Thanksgiving Day Deals on Apple Products — Still Available:AirPods with a wireless charging case remain available for...