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

Thursday October 26, 2017 10:16 am PDT by Juli Clover

Apple today seeded the fifth beta of an upcoming macOS High Sierra update to developers, three days after releasing the fourth macOS High Sierra 10.13.1 beta and a month after releasing the new High Sierra operating system to the public.

The fifth 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.

The update 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.

Also new in macOS 10.13.1 is 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: Apple has also released a new beta of macOS High Sierra 10.13.1 to public beta testers.

Related Forum: macOS High Sierra

Popular Stories

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

Sunday February 1, 2026 10:08 am PST by Joe Rossignol

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...

• 88 comments

Apple's Next Launch is 'Imminent'

Sunday February 1, 2026 12:31 pm PST by Joe Rossignol

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...

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

Tuesday February 3, 2026 7:47 am PST by Joe Rossignol

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...

• 25 comments

New MacBook Pros Reportedly Launching Alongside macOS 26.3

Sunday February 1, 2026 5:42 am PST by Joe Rossignol

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...

• 137 comments

Apple Gives Final Warning to Home App Users

Tuesday February 3, 2026 8:55 am PST by Joe Rossignol

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...

• 45 comments

Top Rated Comments

Jayderek

108 months ago

I know youre being sarcastic, but the only ‘bug’ they mention being fixed is the wifi security issue. And they mention the emojies.
It would be nice to hear what else they are focused on.
Plus, theres been zero info on when apfs support might actually come to fusion drives.

it would be nice for people to actually read the articles and realize when these betas are released there is no idea right away at what's being fixed. The articles are mainly cut and pasted and describe, in general, what the software release contains from the get go.

these 'oh my god, why are they just working on emojis' comments stopped being funny in June

Score: 10 Votes (Like | Disagree)

chucker23n1

108 months ago

Given the hoopla that they made of APFS, it seems that they sure screwed the pooch in announcing it,

Given that they successfully shipped APFS to hundreds of millions of iOS devices without issue, that seems a strange assessment.

long before they had a clue as to what was involved in getting it ready for a Beta release, let alone a GM release. Perhaps they should have done the "One More Thing" teaser with APFS, and announce it for next year?

APFS is out. Tons and tons of iOS devices run it. And the vast majority of Macs on High Sierra do, too.

Seriously, after this long, and they still don't have it working on Fusion drives? How many Macs did they sell, that have Fusion drives?

Surely quite a minority.

I also don't see the problem. They pulled APFS Fusion Drive support in 10.13.0 last-minute because they weren't happy with the reliability. It doesn't really affect users with a Fusion Drive at all, because they simply continue to use HFS+ just as before. They'll eventually get upgraded. Just not today.

Score: 7 Votes (Like | Disagree)

Phil in ocala

108 months ago

Hopefully theyre working on all the bigs being reported in the high sierra forum and not just emojies.

??????????????????????????????????????????????????????????????????
How about fixing apple mail....getting the finder to actually find something...screw the emojies....let the teens buy them at the app store....

Score: 7 Votes (Like | Disagree)

chucker23n1

108 months ago

I know youre being sarcastic, but the only ‘bug’ they mention being fixed is the wifi security issue. And they mention the emojies.

Not sure whom you mean by "they" — MacRumors isn't Apple's PR department, and while MacRumors's beta articles always strike me as a little misleading (no, the main focus of 10.13.1 is not to deploy emoji, nor is it to fix the Wi-Fi bug — several betas existed before the Wi-Fi bug was discussed), Apple does provide release notes. Which don't mention the emoji at all, because that really isn't the point of the developer betas. The main purpose of the developer betas is to test whether your apps still work. That's why the release notes mention, among other things, what they already know does not work, so you don't bother testing that part. And the mention changes in behavior, so you know to focus particular on that. And so forth.

It would be nice to hear what else they are focused on.

It would — tell Apple that?

Plus, theres been zero info on when apfs support might actually come to fusion drives.

Not looking like that'll make it to 10.13.1. The update does include changes to Disk Utility, diskarbitrarion, etc., though, so maybe they're making preparations for that.

Score: 5 Votes (Like | Disagree)

chucker23n1

108 months ago