Apple Releases Third macOS Sierra 10.12.1 Beta for Public Beta Testers

Apple today seeded the third beta of an upcoming macOS Sierra 10.12.1 update to public beta testers, one week after seeding the second public beta and one day after seeding the third beta to developers. It's been two weeks since Apple released macOS Sierra to the public.

Beta testers who have signed up for Apple's beta testing program will receive the 10.12.1 macOS Sierra beta through the Software Update mechanism in the Mac App Store.

Those who want to be a part of Apple's beta testing program can sign up to participate through the beta testing website, which gives users access to both iOS and macOS Sierra betas. Betas should not be installed on a primary machine due to the potential for instability.

macossierra
macOS Sierra 10.12.1 appears to focus mainly on bug fixes and performance improvements to address issues that have surfaced up since macOS Sierra was first released. It also includes album support in Photos for the new Portrait feature in iOS 10 on the iPhone 7 Plus.

macOS Sierra is a major operating system update that introduces features like Siri support, cross device copy paste, improved iCloud functionality, the ability to unlock a Mac with the Apple Watch, an Optimize Storage option, and more.

Related Forum: macOS Sierra

Popular Stories

iphone 17 dummies sonny dickson

iPhone 17 Air Almost as Thin as Its Buttons, New Images Show

Thursday April 24, 2025 2:14 am PDT by
If you missed the video showing dummy models of Apple's all-new super thin iPhone 17 Air that's expected later this year, Sonny Dickson this morning shared some further images of the device in close alignment with the other dummy models in the iPhone 17 lineup, indicating just how thin it is likely to be in comparison. The iPhone 17 Air is expected to be around 5.5mm thick – with a thicker ...
iphone 17 air dummy unbox therapy

iPhone 17 Air's Extreme Thinness Demoed in New Video

Tuesday April 22, 2025 10:22 am PDT by
Apple plans to release an all-new super thin iPhone this year, debuting it alongside the iPhone 17, iPhone 17 Pro, and iPhone 17 Pro Max. We've seen pictures of dummy models, cases, and renders with the design, but Lewis Hilsenteger of Unbox Therapy today showed off newer dummy models that give us a better idea of just how thin the "iPhone 17 Air" will be. The iPhone 17 Air is expected to be ...
AirPods Pro 3 Mock Feature

AirPods Pro 3 Just Months Away – Here's What We Know

Friday April 18, 2025 5:16 am PDT by
Despite being more than two years old, Apple's AirPods Pro 2 still dominate the premium wireless‑earbud space, thanks to a potent mix of top‑tier audio, class‑leading noise cancellation, and Apple's habit of delivering major new features through software updates. With AirPods Pro 3 widely expected to arrive in 2025, prospective buyers now face a familiar dilemma: snap up the proven...
iPhone 17 Pro Blue Feature Tighter Crop

iPhone 17 Pro Launching Later This Year With These 13 New Features

Wednesday April 23, 2025 8:31 am PDT by
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices. Below, we recap key changes rumored for the iPhone 17 Pro models as of April 2025: Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone ...
ipad air windows 11 arm

M2 iPad Air Runs Windows 11 ARM via Emulation, Thanks to EU Rules

Tuesday April 22, 2025 5:01 am PDT by
A developer has demonstrated Windows 11 ARM running on an M2 iPad Air using emulation, which has become much easier since the EU's Digital Markets Act (DMA) regulations came into effect. As spotted by Windows Latest, NTDev shared an instance of the emulation on social media and posted a video on YouTube (embedded below) demonstrating it in action. The achievement relies on new EU regulatory...
iPhone 17 Air Pastel Feature

iPhone 17 Air Launching Later This Year With These 16 New Features

Thursday April 24, 2025 8:24 am PDT by
While the so-called "iPhone 17 Air" is not expected to launch until September, there are already plenty of rumors about the ultra-thin device. Overall, the iPhone 17 Air sounds like a mixed bag. While the device is expected to have an impressively thin and light design, rumors indicate it will have some compromises compared to iPhone 17 Pro models, including only a single rear camera, a...
Global Close Your Rings Day Pin

Apple Stores Giving Away a Limited-Edition Pin For Free Today

Thursday April 24, 2025 10:15 am PDT by
Starting today, April 24, Apple Stores around the world are giving away a special pin for free to customers who request one, while supplies last. Photo Credit: Filip Chudzinski The enamel pin's design is inspired by the Global Close Your Rings Day award in the Activity app, which Apple Watch users can receive by closing all three Activity rings today. The limited-edition pin is the physical...
Apple Logo Spotlight Blue

White House Hits Back at Apple's Massive EU Fine

Thursday April 24, 2025 5:57 am PDT by
Apple's $570 million fine from the EU has triggered a sharp rebuke from the White House, which called the fine a form of economic extortion, Reuters reports. The fine was announced on Wednesday by the European Commission, following a formal investigation into Apple's compliance with the bloc's Digital Markets Act (DMA), a landmark piece of legislation aimed at curbing the market dominance of ...
iphone 16 pro models 1

17 Reasons to Wait for the iPhone 17

Thursday April 17, 2025 4:12 am PDT by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models simultaneously, which is why we often get rumored features months ahead of launch. The iPhone 17 series is no different, and we already have a good idea of what to expect from Apple's 2025 smartphone lineup. If you skipped the iPhone...

Top Rated Comments

rGiskard Avatar
112 months ago
Tried Siri on Mac in Swedish. She can't even play Phil Collins on Apple Music, even if she gets the sentence right. She asks if I want to Google it.
That's because Siri doesn't support torture.
Score: 13 Votes (Like | Disagree)
keysofanxiety Avatar
112 months ago
Apple's software team must be working around the clock. Say what you want about the hardware, but they've been pushing out some rock-solid operating systems recently. Certainly they hold themselves to a higher standard than I can ever remember.

Good on them.
Score: 11 Votes (Like | Disagree)
meaning-matters Avatar
112 months ago
Looking forward running this beauty on my 2016 MacBook Pro.
Score: 7 Votes (Like | Disagree)
kgtenacious Avatar
112 months ago
What's wrong with this picture?



Attachment Image
Score: 4 Votes (Like | Disagree)
smithrh Avatar
112 months ago
Apple's software team must be working around the clock. Say what you want about the hardware, but they've been pushing out some rock-solid operating systems recently. Certainly they hold themselves to a higher standard than I can ever remember.

Good on them.
Likely a good side-effect of having releases without all that many features and upgrades.

I for one would not consider the fact that Preview choked on some PDF files for an entire release a higher standard. Same goes for the software RAID tool being absent for an entire release.
Score: 2 Votes (Like | Disagree)
MistrSynistr Avatar
112 months ago
Apple's software team must be working around the clock. Say what you want about the hardware, but they've been pushing out some rock-solid operating systems recently. Certainly they hold themselves to a higher standard than I can ever remember.

Good on them.
Fret not, there's still that one jabroni who refuses to upgrade from Mavericks because of flat icons.
Score: 2 Votes (Like | Disagree)