Apple Releases macOS High Sierra 10.13.6 Supplemental Update for 2018 MacBook Pro Models

by

As we await the launch of macOS Mojave this fall, Apple has quietly released an updated version of macOS High Sierra 10.13.6 that's designed for the 2018 MacBook Pro models.

The new version of the software can be downloaded directly from the Mac App Store or through the Software Update function in the Mac App Store on all compatible Macs that are already running macOS High Sierra.

macOS High Sierra
According to Apple's release notes the update will improve the stability and reliability of the MacBook Pro with Touch Bar, and is recommended for all 2018 machines.

The macOS High Sierra 10.13.6 Supplemental Update 2 improves the stability and reliability of MacBook Pro with Touch Bar (2018) computers, and is recommended for all users.

For detailed information about the security content of this update, please visit: https://support.apple.com/kb/HT201222

It's not entirely clear what specific bugs or security issues are addressed in the new software, but it features build numbers of 17G2307/15P6805, while prior build numbers were 17G2208/15P6703.

Some 2018 MacBook Pro owners have experienced crackling speakers and issues with kernel panics perhaps related to the T2 chip included in the machines, so it's possible the update addresses some of these issues.

Apple in July released an initial supplemental update for the 2018 MacBook Pro models to address a problem that caused the machines to excessively throttle when doing system intensive tasks. Today's update could also potentially include further refinements to processor performance.

macOS High Sierra is reaching the end of its life as Apple prepares to release macOS Mojave, the newest version of macOS that's currently being beta tested by developers and public beta testers. This is likely to be one of the final updates to the High Sierra operating system.

macOS Mojave introduces multiple enticing new features, such as a system-wide dark mode, dynamic wallpapers that shift throughout the day, Desktop Stacks for organizing desktop files, Finder improvements like a more useful Quick Look view and support for Quick Actions, and new apps like Apple News, Stocks, Home, and Voice Memos.

For details on what's coming in macOS Mojave, make sure to check out our macOS Mojave roundup.

Related Forum: macOS High Sierra

Popular Stories

Generic iOS 18

iOS 18.1 With Apple Intelligence: New Features, Release Date, and More

Thursday October 10, 2024 8:26 am PDT by
iOS 18.1 will be released to the public in the coming weeks, and the software update introduces the first Apple Intelligence features for the iPhone. Below, we outline when to expect iOS 18.1 to be released. iOS 18.1: Apple Intelligence Features Here are some of the key Apple Intelligence features in the iOS 18.1 beta so far: A few Siri enhancements, including improved understanding...
Read Full Article • 17 comments
iPhone 17 Slim Feature Single Camera 2

10 Reasons to Wait for Next Year's iPhone 17

Tuesday October 8, 2024 5:45 am PDT by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models simultaneously, which is why we sometimes get rumored feature leaks so far ahead of launch. The iPhone 17 series is no different – already we have some idea of what to expect from Apple's 2025 smartphone lineup. If you plan to skip...
Read Full Article • 299 comments
space black mbp

Apple Potentially Facing Worst Leak Since iPhone 4 Was Left in a Bar

Monday October 7, 2024 3:03 pm PDT by
Alleged photos and videos of an unannounced 14-inch MacBook Pro with an M4 chip continue to surface on social media, in what could be the worst product leak for Apple since an employee accidentally left an iPhone 4 prototype at a bar in California in 2010. The latest video of what could be a next-generation MacBook Pro was shared on YouTube Shorts today by Russian channel Romancev768, just...
Read Full Article • 174 comments
iPad mini review thumb

iPad Mini 7 Coming Next Month: What to Expect

Tuesday October 8, 2024 6:16 am PDT by
Rumors strongly suggest Apple will release the seventh-generation iPad mini in November, nearly three years after the last refresh. Here's a roundup of what we're expecting from the next version of Apple's small form factor tablet, based on the latest rumors and reports. Design and Display The new iPad mini is likely to retain its compact 8.3-inch display and overall design introduced with...
Read Full Article • 120 comments
apple tv 4k yellow bg feature

Waiting for a New Apple TV? Here's What the Latest Rumors Say

Tuesday October 8, 2024 8:57 am PDT by
The current Apple TV was released two years ago this month, so you may be wondering when the next model will be released. Below, we recap rumors about a next-generation Apple TV. In January 2023, Bloomberg's Mark Gurman reported that a new Apple TV was planned for release in the first half of 2024:Beyond the future smart displays and new speaker, Apple is working on revamping its TV box....
Read Full Article • 105 comments
When Will Apple Launch More M4 Macs Feature

Will Apple Release M4 Macs Soon? Here's What the Latest Rumors Say

Thursday October 10, 2024 6:22 am PDT by
Apple often releases new Macs in the fall, but we are still waiting for official confirmation that the company has similar plans this year. We're approaching the middle of October now, and if Apple plans to announce new Macs before the holidays, recent history suggests it will happen this month. Here's what we know so far. As of writing this, it's been 220 days since Apple released a new...
Read Full Article • 52 comments

Top Rated Comments

maflynn Avatar
maflynn
80 months ago
Why not?
Because the iMac Pro has been dealing with the T2 crashes longer and needs to be addressed as well.
Score: 7 Votes (Like | Disagree)
Weaselboy Avatar
Weaselboy
80 months ago
I'm a somewhat gambling man, so I installed the update. No firmware update, so whatever they did is pure software.
There is a firmware update in this. I went from 15.16.6703.0.0,0 to 15.16.6805.0.0,0.
Score: 6 Votes (Like | Disagree)
nattK Avatar
nattK
80 months ago
I'm pretty sure it's for the bridge os error/kernel panics on the 2018 MBP with touch bar. I had been experiencing a lot of them and have been working with a senior advisor and apple engineers for quite a while. I was told last week that a software fix was coming soon to address the issue. I thought they were referring to Mojave but I guess this is it
Score: 5 Votes (Like | Disagree)
ghostface147 Avatar
ghostface147
80 months ago
I guess I am lucky with my 2018 MacBook Pro. No issues, no kernel panics, nothing. I feel left out. Now I jinxed myself.
Score: 5 Votes (Like | Disagree)
deadspider187 Avatar
deadspider187
80 months ago
Cinebench went from ~938 to ~990 CPU and ~89FPS to ~92FPS OPENGL. I think this may have included further performance improvements. I'm curious if others see the same.

Edit: 2.2GHz 555x model
Score: 5 Votes (Like | Disagree)
Winni Avatar
Winni
80 months ago
Just die already. Mojave can't get here fast enough! HS has been a support nightmare for me.
And you honestly believe that a "new" macOS version will fix all the things that the point releases for the current OS version have not fixed...?

The major problem with macOS and also Windows these days is that both platforms are in perpetual beta - and QA and bug fixing are no longer on the agenda.
Score: 4 Votes (Like | Disagree)
Read All Comments