Apple today seeded the fifth beta of an upcoming macOS Sierra 10.12.6 update to developers, two weeks after seeding the fourth beta and over a month after releasing macOS Sierra 10.12.5, a minor bug fix update.

The fifth 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.

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We didn't find any significant features or notable bug fixes in the first four macOS Sierra betas, and because Apple does not provide beta release notes, we may not know just what's included in the update until its 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 public beta is also available.

Top Rated Comments

keysofanxiety Avatar
60 months ago
Just release this already
*Apple release it early*

"I've seen better stability on a Penny-farthing!"

"Ugh, not bug tested. AGAIN. Apple are slipping."

"Safari feels snappier"
(let's face it, there's always one, regardless how good the OS is)

"Steve would never have allowed this."

"Eww. If it meant 10 betas before this was completely stable, I'd have rather they did that. I miss the Snow Leopard days :("

"Tim Cook?! More like Tim CROOK, amirite?"

"This build is more bloated than Phil Schiller's waistline."


TL;DR: damned if you do, damned if you don't. ;)
Score: 10 Votes (Like | Disagree)
verpeiler Avatar
60 months ago


"This build is more bloated than Phil Schiller's waistline."

Best one ;-)
Score: 4 Votes (Like | Disagree)
rockarollr Avatar
60 months ago
"This build is more bloated than Phil Schiller's waistline."
If you watched the WWDC 17 keynote and were actually paying attention, Phil has lost quite a bit of weight recently and looks great. Besides that, attacks on people's weight are extremely childish and lame.

Phil seems to be working hard to make a lot of things better at Apple, including his own health. Give the guy a f*cking break already.
Score: 3 Votes (Like | Disagree)
826317 Avatar
60 months ago
Hurry up with High Sierra already!
Score: 3 Votes (Like | Disagree)
mithion Avatar
60 months ago
Exactly! Where is High Sierra? It's the 28th and they said 'end of June.'
Yeah I was sure the public beta for high sierra was gonna be released yesterday especially since the betas for the other *OS products went live on Monday. Maybe today is gonna be our lucky day!
Score: 2 Votes (Like | Disagree)
Guy Clark Avatar
60 months ago
Hurry up with High Sierra already!
It is very likely the reason High Sierra has not yet been released in to the public arena is there are far too many bugs.

The High Sierra Developer Betas are dreadfully unstable mostly due to a bad installer and APFS. To release a High Sierra Public Beta at this stage would be a mistake as you will always have the idiots who will want to use it on their daily machine then when it all goes tits up complain like hell about instability.
Score: 2 Votes (Like | Disagree)

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