Apple Releases macOS High Sierra 10.13 Supplemental Update With Fix for APFS Disk Utility Bug

Apple today released a supplemental update to macOS Sierra 10.13, the first update to the macOS High Sierra operating system that was released to the public in late September. The macOS High Sierra 10.13 update comes just over one week after the release of macOS High Sierra.

The new version of macOS High Sierra 10.13 is a free update for all customers who have a compatible machine. The update can be downloaded using the Software Update function in the Mac App Store.


The supplemental macOS High Sierra 10.13 update focuses on introducing performance improvements and addressing bugs that were found following the release of macOS High Sierra.

According to Apple's release notes, the update improves installer robustness, fixes a cursor graphic bug in Adobe InDesign, and resolves an issue where messages couldn't be deleted from Yahoo accounts in Mail. Though not mentioned, this update also fixes an APFS vulnerability that exposes the passwords of encrypted Apple File System volumes in plain text in Disk Utility.

The macOS High Sierra update introduces a new more modern file system designed for flash storage (APFS), Metal 2, Safari improvements that protect user privacy and prevent autoplay videos, and improvements to several apps like Photos, Mail, Notes, and more.
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