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

by iMatt28. August 2018

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.


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 17G2037/15P6805, 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 Roundup: macOS High Sierra

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