Apple today seeded the fourth beta of an upcoming macOS High Sierra 10.13.4 update to developers, two weeks after seeding the third beta and two weeks after the release of a macOS High Sierra 10.13.3 Supplemental Update to address a bug that could cause apps to crash when receiving a character from the Indian language Telugu.

The new macOS High Sierra 10.13.4 beta can be downloaded from the Apple Developer Center or through the Software Update mechanism in the Mac App Store with the proper profile installed.

macoshighsierra10134beta
macOS High Sierra 10.13.4 includes bug fixes and performance improvements for issues that weren't addressed in macOS High Sierra 10.13.3.

The update offers support for some features that are available in iOS 11.3, like Messages on iCloud, which uploads all of your iMessages to the cloud. It will also support Business Chat, a feature coming when iOS 11.3 and macOS 10.13.4 are released to the public, and it includes improved support for eGPUs.

The macOS 10.13.4 update also brings the smoke cloud wallpaper that was previously only available on the iMac Pro, it replaces the "iBooks" app with the new renamed "Books" app, and it introduces a warning when opening up a 32-bit app as part of an effort to phase them out.

In the future, Apple plans to phase out 32-bit Mac apps, just like it did with 32-bit iOS apps. Apple says macOS High Sierra is the last version of macOS that will support 32-bit apps without compromises.

Update: Apple has also seeded a fourth beta of macOS High Sierra 10.13.4 for public beta testers.

Related Forum: macOS High Sierra

Top Rated Comments

imageWIS Avatar
imageWIS
102 months ago
When is 10.13.5? My mac is close to useless to me with Preview distorting images. I have use my antique MacBook 2009 to edit images.
Metal 2 is not ready for prime-time and HS has massive amounts of graphics issues... I feel your pain.
Score: 4 Votes (Like | Disagree)
star-affinity Avatar
star-affinity
102 months ago
We live in an SSD world now.

Antiquated, compromised tech - like fusion drives - are not long for this world. While Apple may support APFS for fusion drives by 10.13.5. or 10.13.6, the real question is why would you even think it would make a difference?

If you want to really make a difference, bite the bullet and get a 1tb or 2tb SDD, wash your hands of spinning drive tech forever ... and walk away. :)
2TB? Too small. 8 TB, please. :)
But really, for storage of lots of data (for a reasonable amount of money) SSDs still have a way to go it seems.
Score: 4 Votes (Like | Disagree)
revenire Avatar
revenire
102 months ago
Wonder when they will support fusion drives?
Score: 4 Votes (Like | Disagree)
chucker23n1 Avatar
chucker23n1
102 months ago
Prohibitively expensive? Who you kidding? A few years ago a 2tb ssd was about $4000, now its $450 or so. For the speed and endurance you get - thats incredibly afforable. Especially for a Mac guys (like we are) who spend 2k on our computers.
But sometimes you don't need the speed, but rather the capacity. A family may not be able to store their entire photo and video library on SSDs because it'd be prohibitively expensive to do so, and because the speed benefits would be near-irrelevant for archival purposes. Similarly, SSDs are a poor fit for backup.
[doublepost=1520332408][/doublepost]
Just an observation: the Books app has been removed from macOS 10.13.4 beta 4 and iBooks is back.

I suspect this is a temporary situation while fixing some bug with the Books app.
Maybe they're waiting to announce some change to the book store.
Score: 3 Votes (Like | Disagree)
nycnftm Avatar
nycnftm
102 months ago
When is 10.13.5? My mac is close to useless to me with Preview distorting images. I have use my antique MacBook 2009 to edit images.
[doublepost=1520399976][/doublepost]
Don't think so, people were complaining about searching for books in Books instead of iBooks, you get irrelevant information when using the word books instead of iBooks.
Could they change Photos back to iPhoto for that reason
Score: 3 Votes (Like | Disagree)
Guyfromtheswamp Avatar
Guyfromtheswamp
102 months ago
Wonder when they will support fusion drives?
We live in an SSD world now.

Antiquated, compromised tech - like fusion drives - are not long for this world. While Apple may support APFS for fusion drives by 10.13.5. or 10.13.6, the real question is why would you even think it would make a difference?

If you want to really make a difference, bite the bullet and get a 1tb or 2tb SDD, wash your hands of spinning drive tech forever ... and walk away. :)
Score: 3 Votes (Like | Disagree)
Read All Comments

Popular Stories

Apple Wallet ID Illinois

Apple Plans to Expand iPhone Driver's Licenses to These 7 U.S. States

Wednesday December 24, 2025 8:40 am PST by
In select U.S. states, residents can add their driver's license or state ID to the Apple Wallet app on the iPhone and Apple Watch, and then use it to display proof of identity or age at select airports and businesses, and in select apps. The feature is currently available in 13 U.S. states and Puerto Rico, and it is expected to launch in at least seven more in the future. To set up the...
Read Full Article • 48 comments
iPhone Top Left Hole Punch Face ID Feature Purple

iPhone 18 Pro Launching Next Year With These 12 New Features

Tuesday December 23, 2025 8:36 am PST by
While the iPhone 18 Pro and iPhone 18 Pro Max are not expected to launch for another nine months, there are already plenty of rumors about the devices. Below, we have recapped 12 features rumored for the iPhone 18 Pro models. The same overall design is expected, with 6.3-inch and 6.9-inch display sizes, and a "plateau" housing three rear cameras Under-screen Face ID Front camera in...
Read Full Article • 98 comments
maxresdefault

Where's the New Apple TV?

Monday December 22, 2025 11:30 am PST by
Apple hasn't updated the Apple TV 4K since 2022, and 2025 was supposed to be the year that we got a refresh. There were rumors suggesting Apple would release the new Apple TV before the end of 2025, but it looks like that's not going to happen now. Subscribe to the MacRumors YouTube channel for more videos. Bloomberg's Mark Gurman said several times across 2024 and 2025 that Apple would...
Read Full Article • 173 comments
maxresdefault

10 Mac Apps Worth Trying in 2026

Wednesday December 24, 2025 9:27 am PST by
2026 is almost upon us, and a new year is a good time to try out some new apps. We've rounded up 10 excellent Mac apps that are worth checking out. Subscribe to the MacRumors YouTube channel for more videos. Alt-Tab (Free) - Alt-Tab brings a Windows-style alt + tab thumbnail preview option to the Mac. You can see a full window preview of open apps and app windows. One Thing (Free) -...
Read Full Article • 97 comments
iOS 26

iOS 26.2 Adds These 8 New Features to Your iPhone

Monday December 22, 2025 8:47 am PST by
Earlier this month, Apple released iOS 26.2, following more than a month of beta testing. It is a big update, with many new features and changes for iPhones. iOS 26.2 adds a Liquid Glass slider for the Lock Screen's clock, offline lyrics in Apple Music, and more. Below, we have highlighted a total of eight new features. Liquid Glass Slider on Lock Screen A new slider in the Lock...
Read Full Article
airpods color prototypes

Apple Tested AirPods in Bright Colors

Saturday December 27, 2025 6:06 am PST by
Apple reportedly tested a version of the first-generation AirPods with bright, iPhone 5c-like colored charging cases. The images, shared by the Apple leaker and prototype collector known as "Kosutami," claim to show first-generation AirPods prototypes with pink and yellow exterior casings. The interior of the charging case and the earbuds themselves remain white. They seem close to some...
Read Full Article • 59 comments
iPhone Fold Vertical Feature

Why Apple's Foldable iPhone May Be Smaller Than Expected

Tuesday December 23, 2025 5:21 am PST by
Apple's first foldable iPhone, rumored for release next year, may turn out to be smaller than most people imagine, if a recent report is anything to go by. According to The Information, the outer display on the book-style device will measure just 5.3 inches – that's smaller than the 5.4-inch screen on the ‌iPhone‌ mini, a line Apple discontinued in 2022 due to poor sales. The report has led ...
Read Full Article • 204 comments
Foldable iPhone 2023 Feature Iridescent Search

Samsung Developing 'Wide Fold' With iPhone Fold-Like Design Ahead of Apple's 2026 Launch

Tuesday December 23, 2025 11:55 am PST by
Samsung is working on a new foldable smartphone that's wider and shorter than the models that it's released before, according to Korean news site ETNews. The "Wide Fold" will compete with Apple's iPhone Fold that's set to launch in September 2026. Samsung's existing Galaxy Z Fold7 display is 6.5 inches when closed, and 8 inches when open, with a 21:9 aspect ratio when folded and a 20:18...
Read Full Article • 92 comments
iPhone SE Cosmopolitan Clean

Apple Discontinued These 25 Products This Year

Wednesday December 24, 2025 7:24 am PST by
With the end of 2025 near, the time has come to look back at the devices and accessories that Apple discontinued throughout the year. Most of the products that were discontinued this year were simply replaced by a new model with an updated chip. However, the iPhone SE line was entirely discontinued when the iPhone 16e launched, and the iPhone Plus line is being phased out. Below, we have...
Read Full Article • 13 comments