MacOS High Sierra 10.13.6 Released, Security Update 2018-004 for Sierra & El Capitan too

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macOS High Sierra updates available

Apple has released macOS High Sierra 10.13.6 to Mac users running the macOS High Sierra operating system. The software update is said to include various bug fixes and security enhancements.

Additionally, Mac users running Mac OS X El Capitan 10.11.6 or macOS Sierra 10.12.6 will find security updates available on those machines, along with a minor update to Safari.

Separately, Apple has also released iOS 11.4.1 update for iPhone and iPad, along with software updates for the Apple Watch, Apple TV, and HomePod.

Download & Install macOS High Sierra 10.13.6 or Security Update 2018-004

Mac users running macOS High Sierra can find the macOS High Sierra 10.13.6 update available now from the Mac App Store Updates section. El Capitan and Sierra will instead find Security Update 2018-004 available as a download to install, along with Safari 11.1.2.

  1. Go to the  Apple menu and select the “App Store”
  2. Go to the “Updates” tab to find the updates to download and install

Always backup a Mac before installing any system software update.

If you are currently running macOS Mojave public beta or another version of macOS then you will not find these updates available to you.

Downloads for MacOS High Sierra 10.13.6 Combo Update, Regular Update, & Security Update 2018-004 for Sierra and El Capitan

Some users may prefer to install with a Combo Update. The following links point to Apple servers where you can download the respective update:

Again, be sure to backup the Mac before installing any software update or security update.

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MacOS High Sierra 10.13.6 Release Notes

The release notes for tacos High Sierra 10.13.6 are as follows:

About the macOS High Sierra 10.13.6 Update

This update is recommended for all macOS High Sierra users.

The macOS High Sierra 10.13.6 Update adds AirPlay 2 multiroom audio support for iTunes and improves the stability and security of your Mac. This update is recommended for all users.

AirPlay 2 for iTunes:

– Control your home audio system and AirPlay 2-enabled speakers throughout your house.
– Play music at the same time on multiple AirPlay 2-enabled speakers in your house, all in sync.

Other improvements and fixes:

– Fixes an issue that may prevent Photos from recognizing AVCHD media from some cameras.

– Fixes an issue that may prevent Mail users from moving a message from Gmail to another account.

See Apple Security Updates for detailed information about the security content of this update.

Apple also released iOS 11.4.1 for iPhone and iPad alongside minor software updates for the Apple Watch, the Apple TV, and the HomePod Siri speaker.

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