macOS High Sierra Will Be Released on September 25
Sep 12, 2017 12:25 pm PDT by Juli Clover
macOS High Sierra, the new version of the macOS operating systems for Macs, will be released to the public on Monday, September 25, according to Apple's macOS High Sierra website.

That's nearly a week after the iOS 11 and watchOS 4 release date, with those software updates coming on Tuesday, September 19. It is not unusual for the Mac operating system to be released after new watchOS and iOS operating system updates.


macOS High Sierra builds on features first introduced in the macOS Sierra update in 2016, focusing primarily on new storage, video, and graphics technology. The update brings a new Apple File System (APFS), High Efficiency Video Codec (HEVC), new HEIF image encoding, and an updated version of Metal with support for VR and external GPUs.

Multiple apps have been updated with new capabilities in macOS High Sierra. Photos features a new sidebar to make it easier to access editing tools and albums, and there are new filters and editing options like Curves and Selective Color.

Safari is gaining speed enhancements, an option to prevent autoplay videos, and a privacy feature aimed at cutting down on cross-site data tracking. Siri in macOS High Sierra has a new, more natural voice, and Spotlight offers flight status information. iCloud, FaceTime, Notes, and Mail also include useful new features.

macOS High Sierra will run on all machines that are capable of running macOS Sierra, the current Mac operating system.

For a complete overview of changes coming in macOS High Sierra, make sure to check out our macOS High Sierra roundup.

Related Roundup: macOS High Sierra

Top Rated Comments

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10 months ago
I don't plan on upgrading. I'm just going to wait for Higher Sierra or Highest Sierra.
Rating: 8 Votes
10 months ago
It troubles me that they didn't even mention this during the keynote

Hopefully I'm reading too much into it and that the future of the Mac isn't in jeopardy
Rating: 8 Votes
10 months ago
Conventional wisdom reminder: never install x.0 version of an operating system. i.e. The term for those who do is "beta tester."
Rating: 3 Votes
10 months ago

Conventional wisdom reminder: never install x.0 version of an operating system. i.e. The term for those who do is "beta tester."

Why, was "Fool" already taken?
Rating: 3 Votes
10 months ago

It troubles me that they didn't even mention this during the keynote

Hopefully I'm reading too much into it and that the future of the Mac isn't in jeopardy

You are. They recently had a major Mac event, so there wasn't much to mention.

Thus far though, APFS has been vaporware for some of use, since High Sierra seems to refuse to convert certain configurations. A bit of a shame, really.
Rating: 3 Votes
10 months ago

Has the green button bug finally been fixed? It's annoying as hell to see windows go full screen and hide essential things like the file menu and dock!


press option and hover over the green button, the old + comes back up like it used to :)
Rating: 2 Votes
10 months ago
[LIST=1]
* Has the green button bug finally been fixed? It's annoying as hell to see windows go full screen and hide essential things like the file menu and dock!
* Has Apple stopped disrespecting indie developers like XtraFinder / TotalFinder and allow us to do things like cut/copy/paste files with NORMAL keyboard shortcuts (cmd+x, cmd+c, cmd+v) ???
Rating: 2 Votes
10 months ago

"With macOS High Sierra, we’re introducing the Apple File System to every Mac with all‑flash internal storage, with an advanced architecture that brings a new level of security and responsiveness." ('https://www.apple.com/macos/high-sierra/')

So no APFS for fusion drives currently sold with 2017 high end iMacs . . .

Get out of here, Apple.


Maybe you should be engineering a new file system since you think it's so easy.
Rating: 2 Votes
10 months ago
I hope Apple will seed another beta. APFS FileVault caused nothing but trouble for me, even on the very last beta where I did a clean install.
Rating: 2 Votes
10 months ago

It troubles me that they didn't even mention this during the keynote

Hopefully I'm reading too much into it and that the future of the Mac isn't in jeopardy


It was kind of strange given all the useless retail updates. They had plenty of time. But the future of the Mac was in jeopardy then they wouldn't be making a new Mac Pro or iMac Pro.
Rating: 1 Votes

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