Apple has released MacOS Tahoe 26.7.1 and MacOS Sequoia 15.8.1 as security updates for Mac users who are still running those operating systems. MacOS Tahoe 26.7.1 and MacOS Sequoia 15.8.1 include security updates only and no other changes.

Separately, Apple also released MacOS 27.0.1 Golden Gate, iOS 27.0.1, iPadOS 27.0.1, iPadOS 26.7.1, and iOS 26.7.1.

You will want to backup your Mac with Time Machine prior to starting the updates:

1. From the  Apple menu choose “System Settings”
2. Go to “General”, and then go to “Software Update”
3. Look below the “MacOS 27” banner for “Other Updates” where you can select “MacOS Tahoe 26.7.1” or “MacOS Sequoia 15.8.1” to update instead

The Mac must restart to finish update installation.

Apple CDN server links for full installers are:

• MacOS Tahoe 26.7.1 full installer
• MacOS Sequoia 15.8.1 full installer

We also maintain a list of MacOS installers available to download as a resource.

Release notes are brief:

This update provides important security fixes and is recommended for all users.

For information on the security content of Apple software updates, please visit this website: https://support.apple.com/100100

Aside from these updates, Apple has also released other updates for various other Apple devices, so you’ll want to update your other Mac, iPhone, iPad, Apple Watch, and other hardware as well.