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

Apple Announces Special Event in New York Feature

Apple Announces Special Event in New York, London, and Shanghai on March 4

Monday February 16, 2026 6:05 am PST by
Apple today announced a "special Apple Experience" in New York, London, and Shanghai, taking place on March 4, 2026 at 9:00am ET. Apple invited select members of the media to the event in three major cities around the world. It is simply described as a "special Apple Experience," and there is no further information about what it may entail. The invitation features a 3D Apple logo design...
Read Full Article • 186 comments
Apple Announces Special Event in New York Feature 1

Apple Event on March 4: Here's What to Expect

Tuesday February 17, 2026 8:08 am PST by
Apple on Monday invited selected journalists and content creators to a "special Apple Experience" on Wednesday, March 4 in New York, London, and Shanghai. At an Apple Experience, attendees are typically given the opportunity to try out Apple's latest hardware or software. Following the launch of Apple Creator Studio last month, for example, some content creators attended an Apple Experience...
Read Full Article • 57 comments
Apple Announces Special Event in New York Feature 1

Rumor: Apple to Announce Multiple New Products in First Week of March

Tuesday February 17, 2026 6:35 pm PST by
Apple on Monday invited selected journalists and content creators to a "special Apple Experience" on Wednesday, March 4 in New York, London, and Shanghai. And now, rumors are surfacing about Apple's broader plans for that week. Daring Fireball's John Gruber today guessed that Apple will announce new products on a day-by-day basis from Monday, March 2 through Wednesday, March 4:What strikes...
Read Full Article • 112 comments
iphone 17 pro dark blue 1

Gurman: iPhone 18 Pro Could Be Underwhelming

Monday February 16, 2026 4:24 am PST by
Apple's upcoming iPhone 18 Pro and iPhone 18 Pro Max models "won't be a big update," according to Bloomberg's Mark Gurman. In the latest edition of his "Power On" newsletter, Gurman said that the iPhone 18 Pro models will "represent minor tweaks from last year's iPhone 17 Pro and 17 Pro Max." He compared the upgrade to Apple's past practice of appending the letter "S" to its more minor...
Read Full Article • 110 comments
Toyota Rav4 Car Key Feature

Toyota Rolling Out Apple Wallet Car Keys on iPhone

Tuesday February 17, 2026 12:34 pm PST by
In 2020, Apple added a digital car key feature to its Wallet app, allowing users to lock, unlock, and start a compatible vehicle with an iPhone or Apple Watch. The feature is currently offered by select automakers, such as Audi, BMW, Hyundai, Kia, Genesis, Mercedes-Benz, and Volvo, and Toyota is now rolling out support as well. According to a Reddit post, select trims of the 2026 Toyota RAV4 ...
Read Full Article • 36 comments

Top Rated Comments

B
Bryan Bowler
109 months ago
Another Emoji-lovefest by Apple. I would rather they spent their time fixing the many bugs instead!
Score: 16 Votes (Like | Disagree)
C
Cougarcat
109 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)
J
JesperA
109 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
109 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
109 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
109 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