Apple Releases Third macOS Sierra Public Beta

Apple today released the third public beta of macOS Sierra, the newest operating system designed for the Mac. Today's beta 3 update comes two weeks after the release of the second macOS Sierra public beta and just a day after the launch of the fourth developer beta. The third public beta and the fourth developer beta offer the same features, including more diverse emoji and a redesigned look for many existing emoji.

Beta testers who have signed up for Apple's beta testing program will receive the 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 OS X betas.


macOS Sierra is a major update that brings Siri to the Mac, allowing users to conduct voice searches to find files, look up information, and more. New Continuity features include an "Auto Unlock" option for unlocking a Mac with an Apple Watch, and a Universal Clipboard for copy paste that works across multiple devices.

Deeper iCloud integration makes files stored on the desktop or the Documents folder of a Mac available on all of a user's devices, and Photos features new deep learning algorithms for facial, object, and scene recognition. The Messages app includes rich links, bigger emoji, and "Tapback" response options, and the macOS Sierra update will also bring Apple Pay to the web.

For full details on all of the new features included in macOS Sierra, make sure to check out our macOS Sierra roundup.

Related Forum: macOS Sierra

Popular Stories

space black mbp

Apple Potentially Facing Worst Leak Since iPhone 4 Was Left in a Bar

Monday October 7, 2024 3:03 pm PDT by
Alleged photos and videos of an unannounced 14-inch MacBook Pro with an M4 chip continue to surface on social media, in what could be the worst product leak for Apple since an employee accidentally left an iPhone 4 prototype at a bar in California in 2010. The latest video of what could be a next-generation MacBook Pro was shared on YouTube Shorts today by Russian channel Romancev768, just...
Alleged M4 MacBook Pro Leak Video

Alleged M4 MacBook Pro Unboxing Video Reveals These Four Upgrades

Sunday October 6, 2024 6:10 pm PDT by
An alleged unboxing video for an unannounced 14-inch MacBook Pro with the M4 chip was uploaded to YouTube today by Russian channel Wylsacom. The video was later linked to on social media platform X by Bloomberg's Mark Gurman. It is possible that this is the same MacBook Pro box shown in photos that were shared by leaker ShrimpApplePro in late September, as he claimed that this MacBook Pro...
M4 Real Feature Red

Gurman: Apple to Launch First M4 Macs and Potentially iPad Mini 7 on November 1

Sunday October 6, 2024 6:40 am PDT by
Apple will announce several new M4 Mac models around the end of October, with the company planning to launch at least some of them as soon as Friday, November 1, according to Bloomberg's Mark Gurman. Writing in his latest Power On newsletter, Gurman said that Apple will launch a new M4 version of its low-end 14-inch MacBook Pro, as well as higher-end 14-inch and 16-inch MacBook Pro models...
watchos 11 vitals

Apple Watch Users Report Vitals App Detecting Illness Before Symptoms Appear

Monday October 7, 2024 5:34 am PDT by
Apple's new Vitals app for watchOS 11 appears to be impressing some users with its ability to detect potential illness days before symptoms manifest, according to recent reports on Reddit. The Apple Watch app, which analyzes key health metrics measured during sleep over the last seven days, appears to be providing early warnings of impending sickness for at least some Apple Watch wearers...
Generic iOS 18

Apple Plans to Release iOS 18.1 With Apple Intelligence on October 28

Sunday October 6, 2024 6:18 am PDT by
Apple intends to launch iOS 18.1 with the first set of much-anticipated Apple Intelligence features on October 28, according to Bloomberg's Mark Gurman. Writing in the latest edition of his Power On newsletter, Gurman says the release date is arriving this month later than initially expected, as Apple is reportedly taking extra time to ensure a smooth rollout and prepare its AI cloud...
Generic iOS 18

Everything New in iOS 18.1 Beta 6

Monday October 7, 2024 4:27 pm PDT by
We're nearing the end of the iOS 18.1 beta testing process, but Apple is continuing to make tweaks to refine built-in features ahead of when the software launches. With testing winding down, there are fewer new additions, but Apple has made changes worth noting. The new beta is available for both developers and public beta testers. Control Center In the Control Center, Apple has added new...
iPad mini review thumb

iPad Mini 7 Coming Next Month: What to Expect

Tuesday October 8, 2024 6:16 am PDT by
Rumors strongly suggest Apple will release the seventh-generation iPad mini in November, nearly three years after the last refresh. Here's a roundup of what we're expecting from the next version of Apple's small form factor tablet, based on the latest rumors and reports. Design and Display The new iPad mini is likely to retain its compact 8.3-inch display and overall design introduced with...

Top Rated Comments

iTom17 Avatar
107 months ago
What I don't understand, is that despite being MACrumors and not iPhonerumors, people almost never talk about what's new in betas of OS X/macOS. I basically know everything that's new in iOS 10 beta 4, thanks to the 'iOS 10 Beta 4 Bug Fixes and Changes' topic. But, apart from the changed emojis, I haven't read about anything else that's new in the new macOS Sierra beta. And since macOS is 'heavier' than iOS, I don't feel like searching through the whole OS to find that out.

Anyone who can tell me what's new in this build? Again, apart from the changed emojis of course.
Score: 16 Votes (Like | Disagree)
countryside Avatar
107 months ago
I wish you guys would let us know what changed...
Score: 10 Votes (Like | Disagree)
flaw600 Avatar
107 months ago
I converted to the apple ecosystem in 2012 (current: ipad air2, 15" MBP MY'14, iPhone 6SPlus, 5s), and have been extremely happy but like many, that love is fading. Apple is stagnant on both hardware and software and is allowing the competition to catch up and in some cases surpass them. Sierra has been a disappointment for me. As was Yosemite, which El Captain, made usable again. It would have been more worth while if the new apple file system was in place as default with a matching time machine update that was more modern. I was also hoping for a smoother UI experience now that metal should be more mature. Unless that is yet another apple technology they highlight then stop working on... Still small animation glitches on my MY'14 MBP which I'm frankly getting tired of.

I use siri on my iphone, but so far I rarely use it on the mac. I prefer Launchbar on the mac for most things file workflow/file related. Siri just doesn't fit into my workflow currently but it my have a place.

Sierra also removed PPTP which breaks my VPN, also removed the ability to enter a VPN hostname (only IP address.. wtf). Sierra also broke some of the plugins I use in Lightroom making it unusable for a daily driver.

Unless, the next 15" MBP is really something special, and the supposed redesigned iphone 8 is equally awesome, I'll probably leave the apple ecosystem when it comes time to replace my laptop. Windows 10 anniversary is getting better , and adds continuity with Android (Thanks Apple) which would be a must-have for me at this point. Despite the new name, I find this release very "style over substance" release that offers very little. The next 15 months will be very interesting for Apple.
As far as Mac software goes, what exactly has surpassed it, or even caught up to it? Why is Sierra a disappointment for you? You're complaining about a beta, you know that right? If you're going to complain (versus inform) about glitches in a beta - even a public one - then you really can't expect others to take that seriously. Apple has already said that the AFS will not be on by default even in the main release as it's still in development. As far as Metal goes, that's supposed to be used for gaming. Apple still works on it but it's clear that its adoption on macOS is probably never going to reach widespread adoption whereas Metal on iOS is getting adoption. We don't know if Sierra removed your VPN stuff or if that's not ready yet and therefore not in place for this build - the removal is not in the official documentation from what I've seen. You keep saying Sierra this, Sierra that, but what you really mean is that a beta broke your stuff, which is expected and explicitly warned about.
Score: 4 Votes (Like | Disagree)
grahamperrin Avatar
107 months ago
Sounds like someone should start a similar thread in the macOS section and people should contribute to it, as it's done in the iOS section.
To minimise repetition, such topics are typically closed or merged. (Yesterday I asked for one of my topics to be merged.)

Macrumours lacks details
I wish you guys would let us know what changed...
So what has changed? Do you even know Macrumours?
The dearth of available information is typically because Apple does not make that information available, not even to developers. Space: macOS 10.12 | Apple Developer Forums ('https://forums.developer.apple.com/community/beta/macos-1012') and so on.

if the current Sierra Beta is compatible with
Please subscribe to the topic that was pinned by MacRumors: macOS Sierra 10.12: Compatible Apps ('https://forums.macrumors.com/threads/macos-sierra-10-12-compatible-apps.1977335/')

Why can't this technically support …
Please subscribe to the topic that was pinned by MacRumors: MacOS 10.12 Sierra Unsupported Macs Thread ('https://forums.macrumors.com/threads/macos-10-12-sierra-unsupported-macs-thread.1977128/')

the issue with using WD my cloud as a time machine
@Jamie-30 to minimise repetition, please consider encouraging readers to continue under your earlier topic Time Machine WD My Cloud issues ('https://forums.macrumors.com/threads/time-machine-wd-my-cloud-issues.1983645/').
Score: 2 Votes (Like | Disagree)
Nunyabinez Avatar
107 months ago
Why can't this technically support iMac early 2008?

It probably can run. I have a Mac Pro 2,1 running El Cap, however, many functions don't work because I have old bluetooth, etc. When Apple decides to exclude certain models, it is usually because something they think is a key part of the experience won't work with that model.

I would expect that people will figure out ways to hack your computer to run Sierra, just like the have done with the old Mac Pros.
Score: 2 Votes (Like | Disagree)
KoolAid-Drink Avatar
107 months ago
What I don't understand, is that despite being MACrumors and not iPhonerumors, people almost never talk about what's new in betas of OS X/macOS. I basically know everything that's new in iOS 10 beta 4, thanks to the 'iOS 10 Beta 4 Bug Fixes and Changes' topic. But, apart from the changed emojis, I haven't read about anything else that's new in the new macOS Sierra beta. And since macOS is 'heavier' than iOS, I don't feel like searching through the whole OS to find that out.

Anyone who can tell me what's new in this build? Again, apart from the changed emojis of course.
Completely agreed. It really bugs me that on all the iOS updates so far (developers and PB alike), all updates were shown in the article, but macOS didn't have anything listed. Despite what some people may think, macOS is still important.
Score: 2 Votes (Like | Disagree)