Apple Seeds Sixth Beta of macOS High Sierra to Developers [Update: Public Beta Available]

by

Apple today seeded the sixth beta of an upcoming macOS High Sierra update to developers for testing purposes, one week after seeding the fifth beta and more than two months after introducing the new software at the 2017 Worldwide Developers Conference.

The sixth beta of macOS High Sierra can be downloaded from the Apple Developer Center or over-the-air using the Software Update mechanism in the Mac App Store.

Today's update brings a fix for a bug that caused apps to quit unexpectedly when printing to Canon printers, and it addresses an issue that caused QuickLook to preview things to force a MacBook Pro to switch to a discrete GPU (pertains to models that have both discrete and integrated GPUs).

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

Subscribe to the MacRumors YouTube channel for more videos.

Several apps are gaining new features in macOS High Sierra. The Photos app 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. Photos also supports external editing apps like Photoshop and Pixelmator, saving changes made in those apps back to Photos, and it interfaces with new third-party printing services.

Safari is gaining speed enhancements, an option to prevent autoplay videos, and a new feature that cuts down on cross-site data tracking. Siri in macOS High Sierra has expanded music capabilities and a new, more natural voice, and Spotlight supports flight status information. There are also improvements to iCloud, FaceTime, Messages, and Notes.

macOS High Sierra is available for both registered developers and public beta testers and will see a few more weeks of testing ahead of its expected fall public release.

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

Update: Apple has also made a new version of macOS High Sierra available to public beta testers.

Related Forum: macOS High Sierra

Popular Stories

iOS 26

Everything New in iOS 26.2 Beta 3

Monday November 17, 2025 3:20 pm PST by
Apple provided developers with the third beta of an upcoming iOS 26.2 update, and there are still new features that are being added with each beta that we get. We've rounded up all of the changes that Apple made in beta 3. AirDrop Apple added new AirDrop functionality, providing a way for two people to share files temporarily without having to add one another as contacts. iOS 26.2...
Read Full Article • 21 comments
applecare apple care banner

Apple Brings New AppleCare+ Options to India

Tuesday November 18, 2025 8:42 am PST by
Apple today announced an expansion of AppleCare+ coverage in India, with new options for monthly and annual plans, and the addition of Theft and Loss for iPhone for the first time. Options for monthly and annual AppleCare+ plans in India provide more choice and flexibility, allowing users to keep coverage for as long as they require. Apple's vice president of Worldwide iPhone Product...
Read Full Article • 6 comments
iPhone 17 Pro Cosmic Orange

10 Reasons to Wait for Next Year's iPhone 18 Pro

Wednesday November 19, 2025 4:00 am PST by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models at the same time, which is why we often get rumored features months ahead of launch. The iPhone 18 series is no different, and we already have a good idea of what to expect for the iPhone 18 Pro and iPhone 18 Pro Max. One thing worth...
Read Full Article • 92 comments
Apple Wallet ID Illinois

iPhone Driver's License Feature Launching in Illinois

Tuesday November 18, 2025 8:47 am PST by
In select U.S. states, residents can add their driver's license or state ID to the Wallet app on the iPhone and Apple Watch, providing a convenient and contactless way to display proof of identity or age at select airports and businesses, and in select apps. Starting this Wednesday, November 19, the feature will be available to residents of Illinois. The announcement confirmed that the...
Read Full Article • 69 comments
iPhone 17 Pro and Air N1 Feature

iPhone 17 vs. iPhone 16 Wi-Fi Speeds: New Study Reveals the Winner

Tuesday November 18, 2025 10:53 am PST by
A new study has revealed that the iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max, and iPhone Air achieve significantly faster average Wi-Fi speeds compared to the iPhone 16 series, thanks to Apple's custom-designed N1 chip. The study was conducted by Ookla, the company behind the popular Speedtest website and app. It said the results are based on global, crowdsourced Speedtest user data...
Read Full Article • 48 comments
macbook black friday

The Best Early Black Friday Mac Deals

Tuesday November 18, 2025 7:32 am PST by
We're getting closer to Black Friday, which lands next week on Friday, November 28. In the lead-up to the shopping holiday, we're tracking a few lowest-ever prices on Apple's most popular Macs, including the M4 MacBook Air and brand new M5 MacBook Pro. Note: MacRumors is an affiliate partner with some of these vendors. When you click a link and make a purchase, we may receive a small payment,...
Read Full Article • 1 comments
ipad mini 7 feature red and blue

iPad Mini 8: Four Major New Features to Expect

Wednesday November 19, 2025 7:50 am PST by
Apple's eighth-generation iPad mini is highly likely to arrive next year, offering a significant refresh of the device with at least four major new features. OLED Display The next-generation version of the iPad mini could feature an OLED display, as part of Apple's plan to expand the display technology across many more of its devices. Apple's first OLED device was the Apple Watch in 2015, ...
Read Full Article • 62 comments
Magic Keyboard Touch ID Feature

Apple Releases New Firmware for 140W USB-C Power Adapter, Magic Keyboard and Magic Trackpad

Tuesday November 18, 2025 1:05 pm PST by
Apple today released updated firmware for several accessories, including the 140W USB-C Power Adapter, the Magic Trackpad 2, the Magic Trackpad USB-C, the Magic Keyboard with Touch ID, and the Magic Keyboard with Touch ID and Numeric Keypad. There is no word on what's included in the updated firmware at this time, but it could offer performance improvements and security updates. Accessory...
Read Full Article • 78 comments
best early black friday deals

Best Black Friday Apple Deals Live Now - Save on AirPods, iPads, and Apple Watches

Saturday November 15, 2025 1:45 pm PST by
We're officially in the month of Black Friday, which will take place on Friday, November 28 in 2025. As always, this will be the best time of the year to shop for great deals, including popular Apple products like AirPods, iPad, Apple Watch, and more. In this article, the majority of the discounts will be found on Amazon. Note: MacRumors is an affiliate partner with some of these vendors. When ...
Read Full Article • 3 comments
Apple Sports App Preview Feature

Apple Sports App on iPhone Now Available in More European Countries

Monday November 17, 2025 6:27 am PST by
The free Apple Sports app on the iPhone was released in additional European countries today, including Belgium, Croatia, Czechia, the Netherlands, Luxembourg, Poland, Hungary, Denmark, Finland, Norway, Sweden, Switzerland, Slovakia, Slovenia, Serbia, Greece, Estonia, Latvia, Romania, Ukraine, and others. The app was already available in the U.S., the U.K., Canada, Austria, France, Germany,...
Read Full Article • 22 comments

Top Rated Comments

nutmac Avatar
nutmac
108 months ago
Not quite sure why the Public Beta (which is identical and even is listed as the Developer Beta in the App Store) won't be released until tomorrow afternoon.
Apple likes to collect installation data first before opening up to public beta. Developers tend to be a lot more resourceful if something goes wrong during installation AND they often have multiple devices.

Many that install public beta are equally knowledgeable but more likely install it on their primary device.

Apple doesn't want to support it.
Score: 4 Votes (Like | Disagree)
JustMartin Avatar
JustMartin
108 months ago
DO NOT INSTALL Beta 6, it will bork your iCloud account. When the update finished, I saw a message that read, "Your iCloud account has been locked for security reasons". WTF, it has been working fine for years.

I tried to "fix" the issue by following Apple's steps and the service would not update my password and now I am locked out. Great!!! My business is dependent on my ability to access my account and data.

Sigh... now I have to call Apple support.
Am I going to be the first to ask why you are running beta software on your production machine?
Score: 4 Votes (Like | Disagree)
0003939 Avatar
0003939
108 months ago
I concur. A biggie. Like the whole OS is being changed out.
[doublepost=1502731822][/doublepost]
I don't have an developer account. Could you please post the PDF file. Thank you.
Can't access it
"This page no longer exists or the Apple ID you signed with does not have permission to view this page"
Perhaps you could download it and then upload it to MediaFire or something?
I know. I was trying to upload to some sites.

Here it is.

https://mega.nz/#!90RCwYbC!sjkHE-Cd3An66k0tryOm3XxVmy0kh90a1J_unRILA7g
Score: 4 Votes (Like | Disagree)
gemoritzt Avatar
gemoritzt
108 months ago
Public Beta is out!
Score: 3 Votes (Like | Disagree)
kissmo Avatar
kissmo
108 months ago
Does trim force work on this release? Can anyone with 3rd party SSD test?
Score: 2 Votes (Like | Disagree)
0003939 Avatar
0003939
108 months ago
Waiting for the Public Beta. Does anyone have the release notes?
https://mega.nz/#!90RCwYbC!sjkHE-Cd3An66k0tryOm3XxVmy0kh90a1J_unRILA7g

Release notes from Developer account.
Score: 2 Votes (Like | Disagree)
Read All Comments