Apple Seeds Fourth macOS High Sierra 10.13.1 Beta to Developers [Update: Public Beta Available]

by

Apple today seeded the fourth beta of an upcoming macOS High Sierra update to developers, less than a week after releasing the third macOS High Sierra 10.13.1 beta and a month after releasing the new High Sierra operating system to the public.

The fourth macOS High Sierra 10.13.1 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.

macos 10
macOS High Sierra 10.13.1 focuses primarily on bug fixes, performance improvements, security enhancements, and other under-the-hood changes.

It includes a fix for a serious vulnerability in the WPA2 Wi-Fi standard that protects many modern Wi-Fi networks. Using a key reinstallation attack or "KRACK," attackers can exploit weaknesses in the WPA2 protocol to decrypt network traffic to sniff out sensitive information. This attack is not possible with the patch in macOS 10.13.1.

The update also introduces a range of new Unicode 10 emoji like crazy face, pie, pretzel, t-rex, vampire, exploding head, face vomiting, shushing face, love you gesture, brain, scarf, zebra, giraffe, fortune cookie, pie, hedgehog, and more. The new emoji are also available in iOS 11.1 and watchOS 4.1.

macOS High Sierra is a major update that introduces APFS, a new more modern file system, HEIF and HEVC photo and video encoding improvements for smaller file sizes without compromising quality, Metal 2, and several new features for Safari, like autoplay blocking for videos and Intelligent Tracking Prevention to better protect user privacy.

For more on what's new in macOS High Sierra, make sure to check out our macOS High Sierra roundup.

Update: There's a new public beta of macOS High Sierra 10.3.1 available for public beta testers.

Related Forum: macOS High Sierra

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...
Read Full Article • 88 comments
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...
Read Full Article
iOS 26

iOS 26.3 and iOS 26.4 Will Add These New Features to Your iPhone

Tuesday February 3, 2026 7:47 am PST by
We are still waiting for the iOS 26.3 Release Candidate to come out, so the first iOS 26.4 beta is likely still at least a week or two away. Following beta testing, iOS 26.4 will likely be released to the general public in March or April. Below, we have recapped known or rumored iOS 26.3 and iOS 26.4 features so far. iOS 26.3 iPhone to Android Transfer Tool iOS 26.3 makes it easier...
Read Full Article • 25 comments
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...
Read Full Article • 137 comments
iOS 26 Home Feature

Apple Gives Final Warning to Home App Users

Tuesday February 3, 2026 8:55 am PST by
In 2022, Apple introduced a new Apple Home architecture that is "more reliable and efficient," and the deadline to upgrade and avoid issues is fast approaching. In an email this week, Apple gave customers a final reminder to upgrade their Home app by February 10, 2026. Apple says users who do not upgrade may experience issues with accessories and automations, or lose access to their smart...
Read Full Article • 45 comments

Top Rated Comments

Bryan Bowler Avatar
Bryan Bowler
108 months ago
Another Emoji-lovefest by Apple. I would rather they spent their time fixing the many bugs instead!
Score: 16 Votes (Like | Disagree)
Cougarcat Avatar
Cougarcat
108 months ago
Another Emoji-lovefest by Apple. I would rather they spent their time fixing the many bugs instead!
It’s not either-or. It’s not like their emoji artists can fix bugs.
Score: 7 Votes (Like | Disagree)
JesperA Avatar
JesperA
108 months ago
My iPhone just got the fifth beta lol 4th came out yesterday or so
Great, you have an iPhone that runs macOS, thats awesome dude
Score: 6 Votes (Like | Disagree)
maverick808 Avatar
maverick808
108 months ago
Been having a major issue that I reported directly to a senior leader of the software team. Whenever I wake up my MBP from sleep (with password authenticated access enabled), it jumps immediately to the desktop.
I have this as well on the GM of 10.13. Absolutely, utterly shocking. I have an encrypted drive and a firmware password but this makes all that pointless, might as well have no security at all.

I reported it in the bug reporter but of course that's just a black hole so I had no idea if it was seen or not.

I'm going to try this beta and see if it's fixed... but the fact that this is in the current 10.13.0 public build on millions of Macs is shameful. Apple should be raked across the coals for this one.
Score: 3 Votes (Like | Disagree)
Agent2015 Avatar
Agent2015
108 months ago
If you were having trouble installing the new High Sierra beta, don't bother.

It deleted all my server settings as in passwords. Cannot send ANY MAIL!
Good job Timmy!

More bug reports I guess. Of course, I'll have to manually remember and put in all the Outgoing Server settings.

UGH! :(

I posted in bold because this same thing has been happening going back to Mavericks!

How does Apple keep doing the same mistakes for that many years? It's just unbelievable.
Sorry to hear about your installation woes. In my case it's been a smooth and trouble free experience on both a 2011 MacBook Pro 17" (SSD) and a 2017 MacBook Pro 15". I had some wake from sleep issues on the 2011 MacBook Pro but they were resolved since the GM was released. Yesterday's 17B45a release is running very smoothly and error free on both laptops.
Score: 2 Votes (Like | Disagree)
LarryJoe33 Avatar
LarryJoe33
108 months ago
I don’t believe so... well at least it didn’t show up for me. Can someone else here please confirm?
It was a full install. It WILL NOT show up as an update. You need to reinstall the beta profile and then it will pop up in the app store as a full install.

I think I may have typed this 100 times.
Score: 2 Votes (Like | Disagree)
Read All Comments