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Apple issues golden master of macOS High Sierra ahead of public launch Sept. 25

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Just a few weeks before macOS High Sierra officially launches, Apple has issued a golden master candidate build to developers and public beta testers, signifying that the anticipated Mac update is almost ready for the masses.

The company revealed earlier this week that High Sierra will publicly launch on Sept. 25, a few days after iOS 11, watchOS 4 and tvOS 11 debut on Sept. 19. Accordingly, the GM for High Sierra arrived a few days after the GMs for Apple's other platforms.

Typically a gold master issued to developers is identical to the version that eventually becomes the final release.

High Sierra brings the Apple File System to the Mac for the first time, while introducing support for a variety of other standards such as HEVC video, HEIF image encoding, and Apple's Metal 2 graphics platform. As usual Apple is also improving built-in apps like Safari, Mail, Notes, and Photos.

What will not ship with High Sierra is external GPU support, which allows Thunderbolt 3 PCI-E enclosures with a graphics card to connect to and accelerate graphics in High Sierra. That capability will come out of beta in spring of 2018.

Unveiled at Apple's Worldwide Developers Conference in June, High Sierra is seen as a refinement of its predecessor, Sierra. The new macOS 10.13 will include blocking of auto-play videos in Safari, new editing tools in Photos, and support for both virtual and augmented reality applications.



16 Comments

bdkennedy1002 12 Years · 540 comments

I downloaded it and it still says that it's beta. This build is 17A362a and the previous one was 17A360a.

lkrupp 19 Years · 10521 comments

I downloaded it and it still says that it's beta. This build is 17A362a and the previous one was 17A360a.

"Typically a gold master issued to developers is identical to the version that eventually becomes the final release." That's because it still IS a beta, not the final release.

Xytras78 7 Years · 2 comments

As noted on Apple's Developer portal, this is a "GM Candidate" -- not a "GM".  Meaning it's not final, but is a candidate for final.

macxpress 16 Years · 5913 comments

I think High Sierra has been ready since the past couple of releases...Granted I don't do a heck of a lot, but I've experienced very little to no issues with the betas I have installed on my 12" MacBook Retina. It did seem slightly sluggish when I first installed it but I think a couple of updates fixed the majority of that.