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Apple Releases macOS High Sierra 10.13.4 With eGPU Support, Business Chat in Messages, and More

Apple today released macOS High Sierra 10.13.4, the fourth major update to the macOS High Sierra operating system available on Apple's Macs. macOS High Sierra 10.13.4 comes more than two months after the release of macOS High Sierra 10.13.3, which brought fixes for the Spectre vulnerability.

macOS High Sierra 10.13.4 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.


macOS High Sierra 10.13.4 introduces bug fixes and performance improvements for issues that have been discovered since the release of macOS High Sierra 10.13.3. The update brings support for Business Chat, which will allow you to interface with businesses like Wells Fargo and Lowe's right in the Messages app, and it includes official support for external graphics processors (eGPUs).

There are also several other small bug fixes and tweaks, as listed in the release notes:
The macOS High Sierra 10.13.4 update improves the stability, performance, and security of your Mac, and it is recommended for all users. This update:

- Adds support for Business Chat conversations in Messages in the US
- Adds support for external graphics processors (eGPUs)
- Fixes graphics corruption issues affecting certain apps on iMac Pro
- Allows jumping to the right-most open tab using Command+9 in Safari
- Enables sorting Safari bookmarks by name or URL by right clicking and choosing "Sort by..."
- Fixes an issue that may prevent web link previews from appearing in Messages
- Helps protect privacy by only AutoFilling usernames and passwords after selecting them in a web form field in Safari
- Displays warnings in the Safari Smart Search Field when interacting with password or credit card forms on non-encrypted web pages
- Displays privacy icons and links to explain how your data will be used and protected when Apple features ask to use your personal information

For more detailed information about this update, please visit: https://support.apple.com/en-us/HT208533
For more detailed information about the security content of this update, please visit: https://support.apple.com/en-us/HT201222
The update also introduces the smoke cloud wallpaper that was previously only available on the iMac Pro and it introduces a warning when opening up a 32-bit app as part of an effort to phase them out.

In the future, Apple plans to phase out 32-bit Mac apps, just like it did with 32-bit iOS apps. Apple says macOS High Sierra is the last version of macOS that will support 32-bit apps "without compromises."

Related Roundup: macOS High Sierra


Top Rated Comments

(View all)

11 weeks ago
Finally able to sort bookmarks in Safari, a small thing but been waiting for this since 2008 ;)
Rating: 25 Votes
11 weeks ago
eGPU support is long overdue. Why is Apple always late to the game on these kinds of things?
Rating: 16 Votes
11 weeks ago
No AirPlay 2 no Messages in iCloud, sad.
Rating: 16 Votes
11 weeks ago

High Sietra sucks man,so many un-solved issues and it visibly slowed down my 12" Macbook.
Worst version of Mac OS ever.
I re-installed El Capitan which is the version my Mac was originally shipped with.
Much snappier now.
Everyone should consider remaining on the original version of the Mac OS their system wasshippedwith,specially 12" MacBook owners with m CPU.
I don't trust Apple or anyone else saying performance won't be slowed down at all.
Seeing (feeling) is believing.


Haha I'm not going to install Snow Leopard on my 2011 MBP. High Sierra runs great on this thing.
Rating: 14 Votes
11 weeks ago
High Sietra sucks man,so many un-solved issues and it visibly slowed down my 12" Macbook.
Worst version of Mac OS ever.
I re-installed El Capitan which is the version my Mac was originally shipped with.
Much snappier now.
Everyone should consider remaining on the original version of the Mac OS their system wasshippedwith,specially 12" MacBook owners with m CPU.
I don't trust Apple or anyone else saying performance won't be slowed down at all.
Seeing (feeling) is believing.
Rating: 11 Votes
11 weeks ago

Amazing....Apple is selling machines with TB 2 (MP, MBP) capability right NOW and they broke EGPU support for them with this update.

As one who has an EGPU that I am using, Apple should fix this

They don't care, they just want you to open up your wallet and buy another computer.
Rating: 10 Votes
11 weeks ago

At who? Apple for requiring 64bit, or to the lazy developer who hasn't updated yet?


Considering that they are one in the same...Dvd player is a native Mac App.
Rating: 10 Votes
11 weeks ago
Black Screen after Update on my MacBook Pro 2016... :-/

Update: Did a forced restart after 15 minutes of black screen... now it tells me it will take 15 minutes to finish the installation

Update 2:
macOS started and reopened all apps while I had a blank window with spinning gear on top of it... after like 2 minutes the Mac asked me for my password again... then Apple wanted to know if I want to share system information with them...

Come on Apple...

Update 3:
The AppStore is back with the "hey let's install 10.13.4 since although I went through all the steps above, I'm back on 10.13.3...

Let's not try this again
Rating: 10 Votes
11 weeks ago

Does it support eGPUs with Nvidia cards?


egpu.io folks are very carefully going over this release. Nvidia? Thunderbolt 1/2 compatibility? Memory fix for 2016 MBP eGPU in Bootcamp? So many questions.
Rating: 10 Votes
11 weeks ago
I first thought they were going to delay iMessage iCloud sync until the new High Sierra Version was released. I guess I was wrong. This sucks.
Rating: 10 Votes

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