Other Macs are not impacted by the bug, and therefore do not need the same software update.

If you have a new 2018 model year MacBook Pro with Touch Bar (or are planning to buy one) then you’d certainly want to install this supplemental software update right away to that machine. Optionally, eligible users can download the update directly from Apple at the link below.Īpple Support: Download macOS High Sierra 10.13.6 Supplemental Update for MacBook Pro (2018) Owners of the impacted MacBook Pro (2018 model only) will find the supplemental update available to download now from the Mac App Store Updates tab. Installing the bug fix update should therefore resolve the performance issue.Īs always with any software update, be sure to backup the Mac before installing the patch.

The update is labeled as “macOS High Sierra 10.13.6 Supplemental Update for MacBook Pro (2018)” and apparently aims to resolve a problem where the new MacBook Pro Touch Bar models were sometimes dramatically underperforming due to thermal issues with the processor, causing the CPU to throttle itself significantly.

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