Apple Releases macOS High Sierra 10.13.6 With AirPlay 2 Multi-Room Audio Support for iTunes

Apple today released macOS High Sierra 10.13.6, the sixth update to the macOS High Sierra operating system available on Apple's Mac lineup. macOS High Sierra 10.13.6 comes more than a month after the release of macOS High Sierra 10.13.5, which introduced support for Messages in iCloud.

macOS High Sierra 10.13.6 can be downloaded directly from the Mac App Store or through the Software Update function in the Mac App Store on all compatible Macs that are already running macOS High Sierra.

macos10136
The macOS High Sierra 10.13.6 update is minor in scale, focusing on bug fixes and security improvements. No major feature changes were discovered during the beta testing process, but Apple's release notes say it adds AirPlay 2 multi-room support for iTunes with the accompanying iTunes 12.8 update. Full release notes are below:

The macOS High Sierra 10.13.6 update adds AirPlay 2 multi-room 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

macOS High Sierra 10.13.6 may be one of the final updates to the macOS High Sierra operating system, as Apple in June introduced macOS Mojave, an update that will be launching to the public this fall. macOS Mojave is currently available to developers and public beta testers and will be tested for several months before it sees a launch.

macOS Mojave introduces a system-wide Dark Mode, Desktop Stacks for organizing all of the files on your desktop, several changes to Finder to make it quicker and easier to access and edit your files, Continuity Camera for importing photos to Mac right from an iPhone, and new apps that include Apple News, Stocks, Home, and Voice Memos.

For full details on all of the new features that are coming in the macOS Mojave update, make sure to check out our roundup.

Related Forum: macOS High Sierra

Popular Stories

iPadOS 26 App Windowing

Apple Explains Why iPads Don't Just Run macOS

Friday June 13, 2025 7:46 am PDT by
iPadOS 26 allows iPads to function much more like Macs, with a new app windowing system, a swipe-down menu bar at the top of the screen, and more. However, Apple has stopped short of allowing iPads to run macOS, and it has now explained why. In an interview this week with Swiss tech journalist Rafael Zeier, Apple's software engineering chief Craig Federighi said that iPadOS 26's new Mac-like ...
iphone 16 pro models 1

17 Reasons to Wait for the iPhone 17

Thursday June 12, 2025 8:58 am PDT by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models simultaneously, which is why we often get rumored features months ahead of launch. The iPhone 17 series is no different, and we already have a good idea of what to expect from Apple's 2025 smartphone lineup. If you skipped the iPhone...
iPhone 17 Pro Blue Feature Tighter Crop

iPhone 17 Pro Launching in Three Months With These 12 New Features

Saturday June 14, 2025 5:45 pm PDT by
The iPhone 17 Pro and iPhone 17 Pro Max are three months away, and there are plenty of rumors about the devices. Below, we recap key changes rumored for the iPhone 17 Pro models as of June 2025:Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone X through iPhone 14 Pro have a...
Logitech Logo Feature

Logitech Announces Two New Accessories for WWDC

Friday June 13, 2025 7:22 am PDT by
Alongside WWDC this week, Logitech announced notable new accessories for the iPad and Apple Vision Pro. The Logitech Muse is a spatially-tracked stylus developed for use with the Apple Vision Pro. Introduced during the WWDC 2025 keynote address, Muse is intended to support the next generation of spatial computing workflows enabled by visionOS 26. The device incorporates six degrees of...
iOS 26 Screens

Here Are All the iOS 26 Features That Require iPhone 15 Pro or Newer

Thursday June 12, 2025 4:53 am PDT by
With iOS 26, Apple has introduced some major changes to the iPhone experience, headlined by the new Liquid Glass redesign that's available across all compatible devices. However, several of the update's features are exclusive to iPhone 15 Pro and iPhone 16 models, since they rely on Apple Intelligence. The following features are powered by on-device large language models and machine...
CarPlay Liquid Glass Dark

Apple to Let iPhone Users Watch Videos on CarPlay Screen While Parked

Thursday June 12, 2025 6:16 am PDT by
Apple this week announced that iPhone users will soon be able to watch videos right on the CarPlay screen in supported vehicles. iPhone users will be able to wirelessly stream videos to the CarPlay screen using AirPlay, according to Apple. For safety reasons, video playback will only be available when the vehicle is parked, to prevent distracted driving. The connected iPhone will be able to...
iOS 26 on Three iPhones

Hate iOS 26's Liquid Glass Design? Here's How to Tone It Down

Wednesday June 11, 2025 4:22 pm PDT by
iOS 26 features a whole new design material that Apple calls Liquid Glass, with a focus on transparency that lets the content on your display shine through the controls. If you're not a fan of the look, or are having trouble with readability, there is a step that you can take to make things more opaque without entirely losing out on the new look. Apple has multiple Accessibility options that ...
Mac Studio Feature

Apple Begins Selling Refurbished Mac Studio With M4 Max and M3 Ultra Chips at a Discount

Thursday June 12, 2025 10:14 am PDT by
Apple today added Mac Studio models with M4 Max and M3 Ultra chips to its online certified refurbished store in the United States, Canada, Japan, Singapore, and many European countries, for the first time since they were released in March. As usual for refurbished Macs, prices are discounted by approximately 15% compared to the equivalent new models on Apple's online store. Note that Apple's ...
iOS 26 Feature

Apple Seeds Revised iOS 26 Developer Beta to Fix Battery Issue

Friday June 13, 2025 10:15 am PDT by
Apple today provided developers with a revised version of the first iOS 26 beta for testing purposes. The update is only available for the iPhone 15 and iPhone 16 models, so if you're running iOS 26 on an iPhone 14 or earlier, you won't see the revised beta. Registered developers can download the new beta software through the Settings app on each device. The revised beta addresses an...

Top Rated Comments

zorinlynx Avatar
91 months ago
I wonder if Apple will ever do a major upgrade of iTunes.
You do realize that they'd probably ruin it right? iTunes is still great for people who have their own large music library. Any iTunes redesign will probably focus on Apple Music and leave us collectors in the dirt.
Score: 16 Votes (Like | Disagree)
zorinlynx Avatar
91 months ago
When they drop CD ripping, iPod hosting and playist support for your own audio files its gonna be EPIC!
Yup. I really want to tell all these "They should update iTunes!!!!11111!!1!1oneone" people to be careful what you wish for. iTunes is still one of, if not THE best music library media players in existence. I really can't see anything they could possibly do to improve it, and if they turn it into a clone of the Music app in iOS I will likely be in tears.

Leave iTunes alone. It is stable, works well and does its job near perfectly.
Score: 15 Votes (Like | Disagree)
killawat Avatar
91 months ago
Pour one out for all the vintage Macs about to be left in the cold , including every 17" notebook Apple ever offered.

♫ Never gonna give you up
Never gonna let you down
♫ Never gonna run around and desert you
Score: 9 Votes (Like | Disagree)
tywebb13 Avatar
91 months ago
Combo: https://support.apple.com/kb/DL1970?viewlocale=en_US&locale=en_US
Score: 8 Votes (Like | Disagree)
Morgenland Avatar
91 months ago
Don't use iTunes for a music collection. Use Plex, it runs fine on a Mac too, but I have dedicated a Linux server to it.
The discussion about iTunes is very old. It always turned out that iTunes can manage a huge 50k + number of tracks extremely well. But one can always try to look smarter.
Score: 5 Votes (Like | Disagree)
cmaier Avatar
91 months ago
"macOS High Sierra 10.13.6 comes more than a month after the release of macOS High Sierra 10.13.6 ('https://www.macrumors.com/2018/06/01/apple-releases-macos-high-sierra-10-13-5/')"

Sure.
Score: 5 Votes (Like | Disagree)