Macos High Sierra 10.13.1 2021 Jun 2026

The macOS 10.13.1 update arrived during a transitional era for the Mac operating system. It bridged the gap between legacy HFS+ file systems and modern APFS storage structures. Shortly after its release, Apple had to issue a supplementary security update to fix a critical "root" login vulnerability (CVE-2017-13872) that bypassed password prompts.

Version 10.13.1 (via subsequent security updates) was essential in fixing a critical flaw that allowed anyone to gain "root" administrative access by simply entering "root" as a username without a password. macos high sierra 10.13.1

High Sierra was the last OS for many "vintage" Mac models. The following machines were supported: : Late 2009 or newer MacBook Air/Pro/Mini/Pro : 2010 or newer The macOS 10

Are you writing this for an , an archival project , or troubleshooting an older Mac ? Version 10

Beyond surface-level features, macOS 10.13.1 addressed critical architectural components. KRACK Wi-Fi Vulnerability Patch

If you are looking for the "headline feature" of High Sierra in general, that would be and HEVC Video Support , but those were introduced in the base 10.13.0 release. 10.13.1 is best characterized as the "Security and Emoji Update."