Apple today seeded the sixth beta of an upcoming macOS High Sierra 10.13.4 update to developers, one week after seeding the fifth beta and one month 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 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.

Related Forum: macOS High Sierra

Top Rated Comments

Guy Clark Avatar
103 months ago
When is a Mac related subject going to make it to the main headlines and not 'other articles' after all this is MACRUMORS is it not?
Score: 10 Votes (Like | Disagree)
liberte1776 Avatar
103 months ago
Yawn! Where is Mac HomeKit?!
Score: 6 Votes (Like | Disagree)
chucker23n1 Avatar
103 months ago
When is a Mac related subject going to make it to the main headlines and not 'other articles' after all this is MACRUMORS is it not?
It’s a beta update to a minor release. No big news.

I asked this very question in the previous 10.13.4 beta release thread and never got a good answer. I wish you better luck.
Nobody outside Apple knows.
[doublepost=1521524349][/doublepost]
Can you imagine if Ford or Toyota said this?
"Sorry, you cannot use these tires on this car anymore. The last repair to your car made them inoperable.
But you're still free to drive the car."

No, but what I can imagine is another tired car analogy.

By the way, good luck using all features on your car entertainment system if it’s more than a few years old. Same reason.
Score: 3 Votes (Like | Disagree)
Westside guy Avatar
103 months ago
Apple says macOS High Sierra is the last version of macOS that will support 32-bit apps without compromises.
"Without compromises" - what does that mean, exactly?
Score: 3 Votes (Like | Disagree)
Guy Clark Avatar
103 months ago
And yet, every minor beta iOS release gets featured on the main page.
You beat me to it and you are absolutely correct. Does Macrumors consider macOS to be of any importance if not it should be renamed iOSrumors as there is now primarily iOS content or blanket coverage of any other Apple device such as the HomePod.

Macrumors has lost focus and direction to the extent that the Mac user needs to go searching for articles of interest.
Score: 2 Votes (Like | Disagree)
Jerry Fritschle Avatar
103 months ago
I asked this very question in the previous 10.13.4 beta release thread and never got a good answer. I wish you better luck.
That’s because no one here knows, and Apple is being deliberately vague. My guess (!), though, is that the first “compromise” will be the dropping of Carbon support, which is long-deprecated.
Score: 2 Votes (Like | Disagree)

Popular Stories

Aston Martin CarPlay Ultra Screen

Apple's CarPlay Ultra to Expand to These Vehicle Brands Later This Year

Sunday February 1, 2026 10:08 am PST by
Last year, Apple launched CarPlay Ultra, the long-awaited next-generation version of its CarPlay software system for vehicles. Nearly nine months later, CarPlay Ultra is still limited to Aston Martin's latest luxury vehicles, but that should change fairly soon. In May 2025, Apple said many other vehicle brands planned to offer CarPlay Ultra, including Hyundai, Kia, and Genesis. In his Powe...
Apple Logo Black

Apple Just Made Its Second-Biggest Acquisition Ever After Beats

Thursday January 29, 2026 10:07 am PST by
Apple today confirmed to Reuters that it has acquired Q.ai, an Israeli startup that is working on artificial intelligence technology for audio. Apple paid close to $2 billion for Q.ai, according to sources cited by the Financial Times. That would make this Apple's second-biggest acquisition ever, after it paid $3 billion for the popular headphone and audio brand Beats in 2014. Q.ai has...
Apple Logo Black

Apple's Next Launch is 'Imminent'

Sunday February 1, 2026 12:31 pm PST by
The calendar has turned to February, and a new report indicates that Apple's next product launch is "imminent," in the form of new MacBook Pro models. "All signs point to an imminent launch of next-generation MacBook Pros that retain the current form factor but deliver faster chips," Bloomberg's Mark Gurman said on Sunday. "I'm told the new models — code-named J714 and J716 — are slated...
14 inch MacBook Pro Keyboard

Apple Changes How You Order a Mac

Saturday January 31, 2026 10:51 am PST by
Apple recently updated its online store with a new ordering process for Macs, including the MacBook Air, MacBook Pro, iMac, Mac mini, Mac Studio, and Mac Pro. There used to be a handful of standard configurations available for each Mac, but now you must configure a Mac entirely from scratch on a feature-by-feature basis. In other words, ordering a new Mac now works much like ordering an...
Apple MacBook Pro M4 hero

New MacBook Pros Reportedly Launching Alongside macOS 26.3

Sunday February 1, 2026 5:42 am PST by
Apple is planning to launch new MacBook Pro models with M5 Pro and M5 Max chips alongside macOS 26.3, according to Bloomberg's Mark Gurman. "Apple's faster MacBook Pros are planned for the macOS 26.3 release cycle," wrote Gurman, in his Power On newsletter today. "I'm told the new models — code-named J714 and J716 — are slated for the macOS 26.3 software cycle, which runs from...