Apple Seeds Fourth Beta of macOS High Sierra 10.13.6 to Developers and Public Beta Testers - MacRumorsOpen MenuShow RoundupsShow Forums menuVisit ForumsOpen Sidebar
Skip to Content

Apple Seeds Fourth Beta of macOS High Sierra 10.13.6 to Developers and Public Beta Testers

by

Apple today seeded the fourth beta of an upcoming macOS High Sierra 10.13.6 update to developers and public beta testers for testing purposes, one week after seeding the third 10.13.6 beta.

The new macOS High Sierra 10.13.6 beta can be downloaded through the Software Update mechanism in the Mac App Store with the proper profile installed.

macos hs beta
We don't yet know what improvements the sixth update to macOS High Sierra will bring, but it likely focuses on bug fixes and performance improvements for issues that were not able to be addressed in macOS High Sierra 10.13.5.

No feature changes were discovered in the first three macOS High Sierra 10.13.6 betas, but we'll update this post if new features or notable bug fixes are discovered in the fourth beta.

Work on macOS High Sierra is wrapping up, with Apple now shifting focus to the next-generation version of macOS, macOS 10.14, which was unveiled at the Worldwide Developers Conference in early June.

Related Forum: macOS High Sierra

Top Rated Comments

pat500000 Avatar
106 months ago
How’s hs so far? Stable? I’m on sierra.
Score: 3 Votes (Like | Disagree)
Morgenland Avatar
106 months ago
is blurry pdf issue still exist ?
Depends on the degree of sobriety
Score: 2 Votes (Like | Disagree)
ceej269 Avatar
106 months ago
How’s hs so far? Stable? I’m on sierra.
Immediately after installation and restart there was no wifi. It was turned off and nothing happened when attempting to turn on. So I again rebooted. Seems okay now but has only been updated for 5 mins so time will tell.
Score: 1 Votes (Like | Disagree)
Kognito Avatar
106 months ago
How’s hs so far? Stable? I’m on sierra.
Did a fresh install a week or so back from Sierra after holding out due to the bugs and the compatability issues which inevitably plague various dev tools.

Can happily say I’m pleased to have made the switch as High Sierra seems just as fast, if not slightly faster and a lot of the niggles I had with Sierra are gone. No issues with APFS although if I were you I’d go for the fresh install and transfer content rather than an in-place filesystem change.
Score: 1 Votes (Like | Disagree)
106 months ago
2.47 GB, wasn't the last one quite a bit smaller?
Yes. This is because it downloaded the combo this time. Did for me too. There is a delta for beta 4. Not sure why the combo downloaded this time. Combos usually only download if you have skipped some point releases, eg going from 10.13.1 to 10.13.6. Whereas if you go from 10.13.5 to 10.13.6 or an earlier beta of 10.13.6 to a later one then we would expect the delta to download.

As well as overall size, you can tell which one you are getting by looking in the folder /Library/Updates as it downloads. If you see folder 091-90757 you are getting the combo. If you see 091-90756 it is the delta. Don't bother looking if you've already installed it - these folders delete themselves after installation. You have to look AS IT DOWNLOADS BEFORE IT INSTALLS. For public releases it should also say "Combined Update" in the mac app store if it is a combo - but it didn't this time for this beta.

Here are all the packages for beta 4 with their respective file sizes:



Attachment Image
Score: 1 Votes (Like | Disagree)
Chase R Avatar
106 months ago
The Mac is in a sad, sad state.
Score: 1 Votes (Like | Disagree)

Popular Stories

Apple Event Logo

Apple Working on All-New Operating System

Wednesday July 29, 2026 11:39 am PDT by
Apple is developing an all-new operating system that is essentially a mix of tvOS, watchOS, and iOS, according to Bloomberg's Mark Gurman. In a report this week, he said the operating system will feature a grid of icons, widgets, and apps, along with customizable clock faces. The new software platform is intended for Apple's long-rumored smart home hub. With built-in facial recognition,...
Four iPhone 18 Pro Colors Mock Feature

iPhone 18 Pro and iPhone Ultra: Pre-Orders and Release Date

Thursday July 30, 2026 6:12 am PDT by
Apple has yet to reveal when the iPhone 18 Pro and iPhone Ultra will be announced and released, but the dates usually follow a familiar pattern. Labor Day is September 7 this year. The last time the holiday fell on that day was in 2020, but the iPhone event that year was delayed until October due to the COVID-19 pandemic. So, the last time Labor Day was on September 7 in a normal year was in ...
Dynamic Island iPhone 18 Pro Feature

iPhone 18 Pro: Twelve Changes Coming to Apple's Next Flagship

Thursday July 30, 2026 3:43 am PDT by
We're less than two months out from the launch of Apple's premium next-generation smartphone lineup, and while we're not expecting a dramatic change in terms of functionality, there are still several enhancements rumored to be coming to the iPhone 18 Pro and iPhone 18 Pro Max. One thing worth noting is that Apple is reportedly planning a major change to its iPhone release cycle this year,...

🔗 Related Apple News & Rumors

Stay updated with the latest Apple ecosystem news and verified rumors