Apple Seeds First Beta of macOS High Sierra to Public Beta Testers

Thursday June 29, 2017 1:06 pm PDT by Juli Clover

Apple today seeded the first public beta of macOS High Sierra to public beta testers, allowing non-developers to download and test the update for the first time since it was introduced at the Worldwide Developers Conference on June 5. The first public beta of macOS High Sierra corresponds to the second developer beta, which was updated this morning.

Beta testers who have signed up for Apple's beta testing program will be able to download the macOS High Sierra beta through the Software Update mechanism in the Mac App Store.

macos hs beta
Those who want to be a part of Apple's beta testing program can sign up to participate through the beta testing website, which gives users access to iOS, macOS, and tvOS betas.

Potential beta testers should make a full Time Machine backup before installing macOS High Sierra, and it should not be installed on a primary machine because betas are unstable and often have many bugs. Caution should be used with macOS High Sierra in particular because when installing it, there's an option to switch to the new Apple Filesystem (APFS), an update that takes some time.

macOS High Sierra is designed to improve and refine macOS Sierra. Along with a new, more efficient file system designed for modern storage, the update introduces Metal 2, the next-generation version of Apple's Metal graphics API with support for machine learning, external GPUs, and VR content creation.

Subscribe to the MacRumors YouTube channel for more videos.

High Efficiency Video Encoding (HEVC aka H.265) is coming in macOS High Sierra, and many of the existing apps are being updated. Photos features a new persistent side view and editing tools for Curves, Selective Color, and Live Photos, while Siri is gaining a more natural voice and support for more music-related commands.

Safari offers a new autoplay blocking feature for videos and Intelligent Tracking Prevention to protect your privacy, while Mail storage is being optimized to take up 35 percent less space. iMessages can now be stored in iCloud, and there are new iCloud Drive file sharing options and new iCloud storage family plans.

For a complete picture of all of the new features you can expect to see when macOS High Sierra is released in the fall, make sure to check out our full macOS High Sierra roundup.

Related Forum: macOS High Sierra

Popular Stories

Home Hub Command Center with Dome Base Feature

Apple Working on All-New Operating System

Saturday August 16, 2025 6:45 am PDT by Joe Rossignol

Apple is developing an all-new operating system codenamed "Charismatic," according to Bloomberg's Mark Gurman. Apple smart home hub concept This is likely Apple's long-rumored "homeOS" operating system. In a report this week, Gurman said both Apple's rumored smart home hub in 2026 and tabletop robot in 2027 will run the new operating system. He said the software platform will blend...

• 128 comments

Apple Watch Ultra 3 Just Weeks Away: Eight Reasons to Upgrade

Wednesday August 20, 2025 6:44 am PDT by Tim Hardwick

We're only weeks away from Apple's annual iPhone event – rumored to take place on September 9 – and along with the new iPhone 17 series, we're going to get a new version of the Apple Watch Ultra for the first time since 2023. By the time the Ultra 3 is unveiled, it will have been two years since the previous model arrived. The intervening period has left plenty of room for enhancements,...

• 66 comments

Here's Everything New in iOS 26 Beta 7

Monday August 18, 2025 11:59 am PDT by Joe Rossignol

The seventh developer beta of iOS 26 is now available. While we are now in the later stages of the iOS 26 beta cycle, there are still some changes. Below, we outline everything new that we have found in iOS 26 beta 7 so far. Redesigned Blood Oxygen Feature The seventh developer betas of iOS 26 and watchOS 26 include a redesigned Blood Oxygen feature on Apple Watch Series 9, Apple Watch ...

• 56 comments

apple wallet drivers license feature iPhone 15 pro

iPhone Driver's Licenses in Apple Wallet Now Available in 10 U.S. States

Wednesday August 20, 2025 12:00 pm PDT by Joe Rossignol

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. This week, Apple announced the 10th U.S. state that has implemented the feature: Montana. Below, we have recapped key details about...

• 64 comments

Apple Releases New Beta Firmware for AirPods Pro 2 and AirPods 4

Tuesday August 19, 2025 11:25 am PDT by Juli Clover

Apple today provided developers with updated beta firmware for the AirPods Pro 2 and AirPods 4, allowing them to test the new AirPods features in iOS 26, iPadOS 26, and macOS Tahoe. The firmware is only available to developers at the current time, and a device running iOS 26, iPadOS 26, or macOS 26 is required to install the update. The firmware has a build number of 8A5343a, up from 8A5324b. ...

• 26 comments

iOS 18.6.2 Update Coming Soon for iPhones

Tuesday August 19, 2025 9:29 am PDT by Joe Rossignol

Apple's software engineers are testing iOS 18.6.2, according to the MacRumors visitor logs, which have been a reliable indicator of upcoming iOS versions. Yesterday, an anonymous source with a proven track record said iOS 18.6.2 was incoming, but the update was not present in our logs at that time. Last year, the same anonymous source claimed that iOS 17.5.2 was in the pipeline, but Apple ...

• 24 comments

No iPhone 18 in 2026, Another Report Claims

Monday August 18, 2025 7:34 am PDT by Hartley Charlton

Apple is expected to delay the launch of its base iPhone 18 model until spring 2027, marking a major shift in the company's long-established release cycle, according to South Korea's ETNews. The report claims that Apple has informed some of its suppliers that the iPhone 18 will not be part of the September 2026 iPhone lineup. Instead, the company will unveil only higher-end models in the...

• 142 comments

Apple Rumored to Launch 'TechWoven' Cases for iPhone 17 With 'Crossbody Strap' Option

Wednesday August 20, 2025 8:21 am PDT by Joe Rossignol

Apple is planning to launch a new "TechWoven" line of cases for the iPhone 17 series, according to a leaker known as "Majin Bu." Two years ago, Apple stopped selling leather iPhone cases, as part of the company's efforts to reduce its carbon emissions. As an alternative, Apple introduced a new "FineWoven" line of fabric iPhone cases made from 68% post-consumer recycled content, but they were ...

• 143 comments

Top Rated Comments

Scott6666

106 months ago

boot your computer while holding down both the command key and the r key.

People who do not know what the recovery partition is should not be trying beta 1's

Score: 10 Votes (Like | Disagree)

DocoBob

106 months ago

...The top secret way that Apple makes a fortune along with other companies is "Planned obsolescence." They just make it not work on purpose to make more money on upgrades. An operating system that breaks half of your programs is not a good one in my opinion no matter what enhancements it offers. If more people made this known, they wouldn't do it...

After working in Silicon Valley for almost 40 years, with just about all the major players there (directly and indirectly) I can tell you that they really don't have secret meeting to enforce "planed obsolescence" to make money. Its the nature of technology to need to grow it, improve it and expand its capabilities. In all the meetings I attended, from the hardware/ software design engineers, marketing gurus legal department all the way up tp the CEOs, no one ever thinks of planned obsolescence as a strategy. They do talk about focusing on specific areas they believe that consumers will want in the future. Its that constant consumer demand that causes the changes to happen. Think about it, do you still want to use a computer with an 8086 processor? or floppies? or a huge CRT that can only display 13" of viewable area? or 20MB hard disk drives that spin as fast as my washing machine? I don't and there are millions of consumers that spend billions each year to upgrade to newer, better, faster features. Its all about voting with your wallet and consumers have voted for ongoing process.

Score: 7 Votes (Like | Disagree)

dogslobber

106 months ago

Downloading now. Also I live in California, so should I be high when I install High Sierra?

I'd recommend you download it, drive to the High Sierra mountain, climb it, then install High Sierra on top of High Sierra. I just hope when you're climbing you don't hit too many bugs and fall off!

Score: 7 Votes (Like | Disagree)