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

iPhone 17 Plus Feature

iPhone 17 Lineup Specs Detail Display Upgrade and New High-End Model

Monday July 22, 2024 4:33 am PDT by
Key details about the overall specifications of the iPhone 17 lineup have been shared by the leaker known as "Ice Universe," clarifying several important aspects of next year's devices. Reports in recent months have converged in agreement that Apple will discontinue the "Plus" iPhone model in 2025 while introducing an all-new iPhone 17 "Slim" model as an even more high-end option sitting...
Read Full Article • 160 comments
iPhone SE 4 Vertical Camera Feature

iPhone SE 4 Production Will Reportedly Begin Ramping Up in October

Tuesday July 23, 2024 2:00 pm PDT by
Following nearly two years of rumors about a fourth-generation iPhone SE, The Information today reported that Apple suppliers are finally planning to begin ramping up mass production of the device in October of this year. If accurate, that timeframe would mean that the next iPhone SE would not be announced alongside the iPhone 16 series in September, as expected. Instead, the report...
Read Full Article • 68 comments
Generic iPhone 17 Feature With Full Width Dynamic Island

Kuo: Ultra-Thin iPhone 17 to Feature A19 Chip, Single Rear Camera, Semi-Titanium Frame, and More

Wednesday July 24, 2024 9:06 am PDT by
Apple supply chain analyst Ming-Chi Kuo today shared alleged specifications for a new ultra-thin iPhone 17 model rumored to launch next year. Kuo expects the device to be equipped with a 6.6-inch display with a current-size Dynamic Island, a standard A19 chip rather than an A19 Pro chip, a single rear camera, and an Apple-designed 5G chip. He also expects the device to have a...
Read Full Article • 161 comments
iPhone 17 Plus Feature Purple

These 5 Features Will Make the iPhone 17 the Biggest Update in Years

Monday July 22, 2024 4:02 pm PDT by
The upcoming iPhone 16 models that we're expecting to see in September are going to be quite similar to the iPhone 15 models, but rumors suggest that Apple is making big changes in 2025. We've been hearing hints of an all-new device in the iPhone lineup, and it may be the most expensive iPhone Apple has offered to date. New 'Slim' Design Rumors have taken to referring to the new iPhone 17...
Read Full Article • 171 comments
iOS 18 on iPhone Feature

Everything New in iOS 18 Beta 4

Tuesday July 23, 2024 1:08 pm PDT by
Apple released the fourth beta of iOS 18 today, introducing small changes to a number of features throughout the operating system. There are no big additions in this beta, but Apple is continuing to refine existing settings and design choices. Apple plans to continue updating iOS 18 over the next few months, with the update set to be released this fall. We've rounded up all of the changes...
Read Full Article • 53 comments
iPhone SE 4 Thumb 1

iPhone SE 4 Rumored to Launch Early Next Year With OLED Display, 48MP Camera, and More

Monday July 22, 2024 7:22 am PDT by
The fourth-generation iPhone SE will offer a series of major upgrades over the current model, the leaker known as "Ice Universe" claims. The information was listed in a post on Weibo, which also detailed the specifications of the iPhone 17 lineup. As previously rumored, the fourth-generation iPhone SE is expected to feature Face ID and USB-C, marking a major upgrade from current and previous ...
Read Full Article • 120 comments
iPhone 17 Plus Feature Purple

iPhone 17 Rumored to Feature Mechanical Aperture

Tuesday July 23, 2024 9:32 am PDT by
Apple is planning to release at least one iPhone 17 model next year with mechanical aperture, according to a report published today by The Information. The mechanical system would allow users to adjust the size of the iPhone 17's aperture, which refers to the opening of the camera lens through which light enters. All existing iPhone camera lenses have fixed apertures, but some Android...
Read Full Article • 60 comments

Top Rated Comments

maflynn Avatar
maflynn
77 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
77 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
77 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
77 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
77 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
77 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