The CPU throttling suffered by the MacBook Pro 2018 with an Intel Core i9 processor is caused by a software bug, says Apple. A macOS High Sierra 10.13.6 update will be released today that will correct the problem. The official Apple press statement to The Verge is “the CPU throttling was caused by a missing piece of firmware code that affected the thermal management system.”
The news comes just a few hours from the realization of an unofficial solution by the community, which involves the reduction of the VRM voltages. This path is not for everyone, and also has some risk, since it will invalidate the laptop warranty. It is rather easy to predict that the same community will take care, over the next few days, to compare the goodness of both solutions and to understand exactly how the Apple patch intervenes.
“The macOS High Sierra 10.13.6 Supplemental Update improves the stability and reliability of MacBook Pro with Touch Bar (2018) computers and is recommended for all users,” Apple has said on its support page.
The update of macOS in distribution today is reserved for all models of the MacBook Pro 2018, regardless of the diagonal of the display and processor mounted. Needless to specify that it is a highly recommended update, you can download the macOS High Sierra 10.13.6 update on your Mac device by going to the App Store and then visit the Updates section. Once you reached the Updates section, click the Download button and then enter your Apple ID credentials in the provided box to begin the download process. After the download process accomplished, an information window will come in front of your screen, click on Continue and then wait until the update automatically installs on your device. You can also use this link from your macOS machine to begin the download process. The update package is 1.31GB in size.