10.13.1: Macos High Sierra

For users who had hesitated to upgrade to High Sierra due to fears of file corruption, 10.13.1 served as a stability anchor, proving that the new file system was ready for daily driver status.

Users reported random kernel panics. External drives formatted with APFS would sometimes vanish. And worst of all, a critical bug in the allowed anyone with physical access to bypass the security prompt by repeatedly clicking the “Other User” option. It was a PR nightmare for a company that sold privacy as a product. macos high sierra 10.13.1

: Fixed a significant vulnerability where anyone could log in as a "root" user without a password by simply leaving the password field blank—one of the most famous security flaws in macOS history. For users who had hesitated to upgrade to

Based on the specific version number , this update was a supplementary release focused primarily on security, bug fixes, and compatibility rather than major UI overhauls. It was released on October 31, 2017. And worst of all, a critical bug in

Additionally, battery life saw modest improvements. On a 2015 13-inch MacBook Pro, 10.13.1 provided an average of 45 minutes of additional web browsing compared to 10.13.0 (8.2 hours vs. 7.4 hours).

: Included a vital fix for the KRACK (Key Reinstallation Attack) vulnerability, which protected users from attacks that could potentially decrypt sensitive network traffic. System Stability : Addressed several functional bugs: