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Apple Seeds Fourth Beta of macOS Sierra 10.12.6 to Developers [Update: Public Beta Available]

Apple today seeded the fourth beta of an upcoming macOS Sierra 10.12.6 update to developers, a little less than week after seeding the third beta and more than a month after releasing macOS Sierra 10.12.5, a minor bug fix update.

The fourth beta of macOS Sierra 10.12.6 can be downloaded through the Apple Developer Center or through the Software Update mechanism in the Mac App Store.


We didn't find any significant features or notable bug fixes in the first three macOS Sierra betas, and because Apple does not provide beta release notes, it's likely we won't know what's included in the update until it sees a public release.

macOS Sierra 10.12.6 is likely to be one of the final updates to the Sierra operating system as Apple transitions to macOS High Sierra, which was introduced at the Worldwide Developers Conference in June.

Update: A fourth public beta of macOS Sierra 10.12.6 is also available for public beta testers.



Top Rated Comments

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25 months ago
iOS 11 Beta 2, please. :)
Rating: 13 Votes
25 months ago
Oh darn I got excited for a moment
Rating: 7 Votes
25 months ago
Who cares about macOS Sierra, just work on High Sierra please :)
Rating: 6 Votes
25 months ago

Enough with the dam betas it must be ready by now dam

You say that now but when it does releases and one person’s Mac glitches out, Everyone here scream “Apple is Doomed! Steve Jobs would never..! Snow Leopard!.. blah blah blah...”
Rating: 5 Votes
25 months ago

Don't know why they release it for developers only and then turn around and allow the public beta just a few hours later. Is there really that high of a demand that they have to be staggered?

It's in case a developer notices a major issue. Then Apple can stop the public fanbase from installing.
Rating: 4 Votes
25 months ago
eagerly waiting for High Sierra second beta...
Rating: 4 Votes
25 months ago


Snow Leopard running on a mid 2011 iMac packs a hefty punch and more than a match for Sierra.


While I agree with you on the snappiness of the OS, frankly, Snow Leopard does not have the feature set that today's Apple ecosystem uses. But, I do wholeheartedly agree with you on the one thing that people remember about SL - snappiness - and that really, really matters a lot.
Rating: 3 Votes
25 months ago
Hurray...

Please Apple, give us the Public Beta of High Sierra...
Rating: 3 Votes
25 months ago

While I agree with you on the snappiness of the OS, frankly, Snow Leopard does not have the feature set that today's Apple ecosystem uses. But, I do wholeheartedly agree with you on the one thing that people remember about SL - snappiness - and that really, really matters a lot.


MacOS is pretty slow and clunky these days, and it's very obvious when you use Snow Leopard on a machine that's far less powerful.

For all the grief over Windows 10, it's very fast even on modest hardware.

Apple doesn't seem to care about OS performance when it comes to either MacOS or iOS.
Rating: 3 Votes
25 months ago
Sounds like all the people that are working on high sierra have gone on holiday i thought they would of released a new version by now it about time they do because this is the worse we have ever dealt with
Rating: 2 Votes

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