Apple Seeds First Beta of macOS High Sierra 10.13.5 to Developers [Updated] - MacRumors
Skip to Content

Apple Seeds First Beta of macOS High Sierra 10.13.5 to Developers [Updated]

by

Apple today seeded the first beta of an upcoming macOS High Sierra 10.13.5 update to developers, just under one week after releasing the macOS High Sierra 10.13.4 update.

The new macOS High Sierra 10.13.5 beta can be downloaded through the Software Update mechanism in the Mac App Store with the proper profile installed.

macoshighsierra10135beta
It's not yet clear what improvements the fifth major update to macOS High Sierra will bring, but it's likely to include bug fixes and performance improvements for issues that weren't addressed in macOS High Sierra 10.13.4.

We are waiting on several features to come to macOS and iOS, including Messages on iCloud, a feature that was in the iOS 11.3 beta but later pulled. Messages on iCloud has been reintroduced in the iOS 11.4 beta and is likely in macOS High Sierra 10.13.5 as well.

The previous macOS High Sierra 10.13.4 update brought support for external graphics processors (eGPUs) along with Business Chat in Messages and several other bug fixes and smaller feature improvements.

We'll update this post should any new features be discovered in macOS High Sierra 10.13.5.

Update: The macOS High Sierra 10.13.5 beta is now listed in the Apple Developer Center.

Related Forum: macOS High Sierra

Top Rated Comments

Populus Avatar
Populus
106 months ago
Why is this note on the side column, and the iOS 11.4 note is on the front page? This is MacRumors, isn't it?

Anyway, looking forward to see any changes on this build.
Score: 20 Votes (Like | Disagree)
jclo Avatar
jclo
106 months ago
Why is this note on the side column, and the iOS 11.4 note is on the front page? This is MacRumors, isn't it?

Anyway, looking forward to see any changes on this build.
It was primarily because something more interesting and discussion worthy had recently been posted to the front page (Apple hiring Google's AI guy). I do often share the Mac updates on the front page, but they get considerably less interest than iOS updates because it's not often as easy to spot changes. Appreciate the feedback!
Score: 8 Votes (Like | Disagree)
jermwhl Avatar
jermwhl
106 months ago
Why is this note on the side column, and the iOS 11.4 note is on the front page? This is MacRumors, isn't it?

Anyway, looking forward to see any changes on this build.
This is why I prefer the mobile version of Macrumors - no side column.
[doublepost=1522809501][/doublepost]
It was primarily because something more interesting and discussion worthy had recently been posted to the front page (Apple hiring Google's AI guy). I do often share the Mac updates on the front page, but they get considerably less interest than iOS updates because it's not often as easy to spot changes. Appreciate the feedback!
Not to say the side column isn't useful, but as mentioned above, I prefer the mobile version of the site simply because I don't need to bounce back and forth between the main stories and the "other" stories. Some of the "less interesting" stories, I often find more useful and vice versa. Just my .02.
Score: 5 Votes (Like | Disagree)
Dominicanyor Avatar
Dominicanyor
106 months ago
When the macOS high Sierra bugs are actually fix I’ll upgrade.
Score: 4 Votes (Like | Disagree)
QCassidy352 Avatar
QCassidy352
106 months ago
When the macOS high Sierra bugs are actually fix I’ll upgrade.
The bug where changes to contacts made on iOS devices do not get pushed to macs with High Sierra is really, really annoying.
Score: 3 Votes (Like | Disagree)
L
lunarworks
106 months ago
At this point I'm not expecting APFS on Fusion Drives.
Score: 3 Votes (Like | Disagree)
Read All Comments

Popular Stories

Apple Event Logo

Apple's Next Era Begins September 1

Thursday May 7, 2026 10:36 am PDT by
Apple recently announced that Tim Cook will be stepping down as CEO later this year, after 15 years of leading the company. Effective September 1, Apple's hardware engineering chief John Ternus will become the company's next CEO, while Cook will become executive chairman of Apple's board of directors. In his new role, Apple said Cook will assist with "certain aspects" of the company,...
Read Full Article
Four iPhone 18 Pro Colors Mock Feature

iPhone 18 Pro Launching in September With These 10 New Features

Saturday May 9, 2026 6:03 am PDT by
While the iPhone 18 Pro and iPhone 18 Pro Max are not launching until September, there are already plenty of rumors about the devices. It was initially reported that the iPhone 18 Pro models would have fully under-screen Face ID, with only a front camera visible in the top-left corner of the screen. However, the latest rumors indicate that only one Face ID component will be moved under the...
Read Full Article
MacBook Pro Low Angle Wide Lens

macOS 27: Two More Changes Leaked Ahead of WWDC Next Month

Sunday May 10, 2026 9:45 am PDT by
macOS 27 will have a "slight redesign" compared to macOS Tahoe, along with an option to automatically group tabs in Safari, according to Bloomberg's Mark Gurman. In his Power On newsletter today, Gurman said the design changes will help to address some of the criticism surrounding macOS Tahoe's new Liquid Glass interface. In particular, the changes should improve overall readability....
Read Full Article • 126 comments