Macos High Sierra 10.13.1 Jun 2026

Practical guidance (for readers today)

While it was a minor version bump, 10.13.1 introduced several significant changes:

Paradoxically, the 10.13.1 update itself was the source of one of the most infamous macOS security embarrassments in recent years. Shortly after its release, a critical flaw was discovered. Here's how it unfolded: macos high sierra 10.13.1

In addition to the user-facing changes, macOS High Sierra 10.13.1 includes several under-the-hood changes and improvements:

: The update introduced a wide array of new characters, including mythical creatures (vampires, genies), animals (zebras, giraffes, hedgehogs), and various food items. Practical guidance (for readers today) While it was

As of late 2025, macOS has progressed through Catalina, Big Sur, Monterey, Ventura, Sonoma, and Sequoia. So why would anyone still run ?

It is considered outdated by Apple. It lacks modern security updates, so it is recommended to use it offline or with enhanced security measures. As of late 2025, macOS has progressed through

Beyond KRACK, macOS High Sierra 10.13.1 included patches for . The most critical among them:

macOS High Sierra 10.13.1 shares the same system requirements as the baseline High Sierra release. It supports the following hardware: Late 2009 or newer MacBook Air: Late 2010 or newer MacBook Pro: Mid 2010 or newer Mac mini: Late 2010 or newer iMac: Late 2009 or newer iMac Pro: 2017 models Mac Pro: Mid 2010 or newer

Security perspective (concise)

Open the app from your Dock or Applications folder. Click on the Updates tab in the top menu.