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
72 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
72 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
72 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
72 months ago
When the macOS high Sierra bugs are actually fix I’ll upgrade.
Score: 4 Votes (Like | Disagree)
lunarworks Avatar
72 months ago
At this point I'm not expecting APFS on Fusion Drives.
Score: 3 Votes (Like | Disagree)
QCassidy352 Avatar
72 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

Multi Display CarPlay 1

All-New Apple CarPlay Launching Later This Year With These 5 New Features

Friday September 29, 2023 11:29 am PDT by
At WWDC 2022 last year, Apple previewed the next generation of CarPlay, promising deeper integration with vehicle functions like A/C and FM radio, support for multiple displays across the dashboard, personalization options, and more. Apple said the first vehicles with support for the next-generation CarPlay experience would be announced in late 2023, but it has still not shared any additional...
BMW Logo iPhone 15 Pro

Warning: BMW Wireless Charging May Break iPhone 15's Apple Pay Chip

Sunday October 1, 2023 6:14 am PDT by
If you have an iPhone 15 and drive a BMW, it might be best to avoid charging the device with the vehicle's wireless charging pad for now. Over the past week, some BMW owners have complained that their iPhone 15's NFC chip no longer works after charging the device with their vehicle's wireless charging pad, according to comments shared on the MacRumors Forums and X, formerly known as Twitter. ...
iPhone 15 Pro lineup

Apple to Address iPhone 15 Pro Overheating Issue With iOS 17 Update

Saturday September 30, 2023 9:28 am PDT by
Apple plans to release an iOS 17 update to address a bug that may contribute to the reported iPhone 15 Pro and iPhone 15 Pro Max overheating issue, according to a statement the company shared today with MacRumors and Forbes reporter David Phelan. Apple also says some recent updates to third-party apps have overloaded the system and contributed to the overheating issue. The report notes that...
iphone se 4 modified flag edges

iPhone SE 4 Details: Action Button, USB-C Port, Face ID, and More

Wednesday September 27, 2023 1:34 pm PDT by
Significant changes are expected to arrive with Apple's fourth-generation iPhone SE, in terms of both design and hardware, MacRumors has learned. The iPhone SE 4, known internally under the codename Ghost, is expected to receive a new design derived almost entirely from the base model iPhone 14. According to our sources, the iPhone SE 4 will use a modified version of the iPhone 14 chassis...
iPhone 16 Side Feature

iPhone 16 and 16 Pro: Preliminary Weights and Dimensions

Friday September 29, 2023 12:34 pm PDT by
MacRumors has obtained preliminary information on the weights and dimensions planned for the iPhone 16, iPhone 16 Plus, iPhone 16 Pro, and iPhone 16 Pro Max. The information corroborates previous reports suggesting that the iPhone 16 Pro and 16 Pro Max will feature larger displays. iPhone 16 and 16 Plus Current information suggests that the iPhone 16 and 16 Plus will maintain the same...
CarPlay SharePlay

CarPlay Not Working for Some iPhone 15 Users, Possibly Because of USB-C Cables

Friday September 29, 2023 2:27 pm PDT by
CarPlay is not working as expected for some iPhone 15 users, an issue that is likely linked to the transition to USB-C. There are multiple complaints from MacRumors readers and Reddit users who are unable to get CarPlay to work with their new devices. Cable type and available port options are a common theme in the CarPlay reports, with many of the functionality problems linked to USB-A to...
iOS 17

Everything New in iOS 17.1 Beta 1

Wednesday September 27, 2023 1:57 pm PDT by
Just a week after releasing iOS 17, Apple has seeded the first beta of iOS 17.1 to developers. iOS 17.1 adds some features that Apple promised were coming to iOS 17 in the future, plus it refines and improves some existing features. This guide covers everything new in the first iOS 17.1 beta. Apple Music Favorites You can favorite songs, albums, playlists, and artists in the iOS 17.1...