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
88 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
88 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
88 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
88 months ago
When the macOS high Sierra bugs are actually fix I’ll upgrade.
Score: 4 Votes (Like | Disagree)
lunarworks Avatar
88 months ago
At this point I'm not expecting APFS on Fusion Drives.
Score: 3 Votes (Like | Disagree)
QCassidy352 Avatar
88 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)

Popular Stories

New Things Your iPhone Can Do in iOS 18

20 New Things Your iPhone Can Do in iOS 18.2

Monday December 16, 2024 8:55 am PST by
Apple released iOS 18.2 in the second week of December, bringing the second round of Apple Intelligence features to iPhone 15 Pro and iPhone 16 models. This update brings several major advancements to Apple's AI integration, including completely new image generation tools and a range of Visual Intelligence-based enhancements. Apple has added a handful of new non-AI related feature controls as...
iphone 16 apple intelligence

Apple Drops Plans for iPhone Hardware Subscription Service

Wednesday December 18, 2024 11:39 am PST by
Apple is no longer planning to launch a hardware subscription service that would let customers "subscribe" to get a new iPhone each year, reports Bloomberg's Mark Gurman. Gurman first shared rumors about Apple's work on a hardware subscription service back in 2022, and at the time, he said that Apple wanted to develop a simple system that would allow customers to pay a monthly fee to gain...
iPhone 17 Pro Dual Tone Feature 1

iPhone 17 Pro Rumored to Stick With 'Triangular' Camera Design

Wednesday December 18, 2024 2:36 am PST by
Contrary to recent reports, the iPhone 17 Pro will not feature a horizontal camera layout, according to the leaker known as "Instant Digital." In a new post on Weibo, the leaker said that a source has confirmed that while the appearance of the back of the iPhone 17 Pro has indeed changed, the layout of the three cameras is "still triangular," rather than the "horizontal bar spread on the...
elevation lab airtag battery

Your AirTag's Battery Will Last for Up to 10 Years With Elevation Lab's New TimeCapsule Enclosure

Wednesday December 18, 2024 10:05 am PST by
Elevation Lab today announced the launch of TimeCapsule, an innovative and simple solution for increasing the battery life of Apple's AirTag. Priced at $20, TimeCapsule is an AirTag enclosure that houses two AA batteries that offer 14x more battery capacity than the CR2032 battery that the AirTag runs on. It works by attaching the AirTag's upper housing to the built-in custom contact in the...
apple tv 4k yellow bg feature

New Apple TV Rumored to Launch Next Year With These Features

Tuesday December 17, 2024 9:02 am PST by
The current Apple TV 4K was released more than two years ago, so the streaming device is becoming due for a hardware upgrade soon. Fortunately, it was recently rumored that a new Apple TV will launch at some point next year. Below, we recap rumors about the next-generation Apple TV. Bloomberg's Mark Gurman last week reported that Apple has been working on its own combined Wi-Fi and...
blackmagic vision pro

Blackmagic Debuts $30K 3D Camera for Capturing Video for Vision Pro

Monday December 16, 2024 4:17 pm PST by
Blackmagic today announced that its URSA Cine Immersive camera is now available for pre-order, with deliveries set to start late in the first quarter of 2025. Blackmagic says that this is the world's first commercial camera system designed to capture 3D content for the Vision Pro. The URSA Cine Immersive camera was first introduced in June, but it has not been available for purchase until...
mac pro creativity

Apple Launched the Controversial 'Trashcan' Mac Pro 11 Years Ago Today

Thursday December 19, 2024 7:00 pm PST by
Apple launched the controversial "trashcan" Mac Pro eleven years ago today, introducing one of its most criticized designs that persisted through a period of widespread discontentment with the Mac lineup. The redesign took the Mac Pro in an entirely new direction, spearheaded by a polished aluminum cylindrical design that became unofficially dubbed the "trashcan" in the Mac community. All of ...
iPhone 17 Slim Feature

'iPhone 17 Air' With 'Major' Design Changes and 19-Inch MacBook Detailed in New Report

Sunday December 15, 2024 9:47 am PST by
Apple is planning a series of "major design" and "format changes" for iPhones over the next few years, according to The Wall Street Journal's Aaron Tilley and Yang Jie. The paywalled report published today corroborated the widely-rumored "iPhone 17 Air" with an "ultrathin" design that is thinner than current iPhone models. The report did not mention a specific measurement, but previous...