macOS Monterey 12.6.7 & macOS Big Sur 11.7.8 Updates Released

Jun 22, 2023 - 3 Comments

macOS Monterey update

Apple has released MacOS Monterey 12.6.7 and MacOS Big Sur 11.7.8 for Mac users who are continuing to run those versions of MacOS, rather than Ventura.

Additionally, macOS Ventura 13.4.1, iOS 16.5.1, iPadOS 16.5.1, iOS/iPadOS 15.7.7, and updates to watchOS are available.

How to Download & Install macOS Monterey 12.6.7 or macOS Big Sur 11.7.8 Update

Be sure to back up the Mac with Time Machine before installing software updates. If you’re unfamiliar with installing updates for macOS Big Sur and macOS Monterey while ignoring the push for macOS Ventura, here’s how it works:

  1. Go to the  Apple menu, then select “System Preferences”
  2. Choose “Software Update”
  3. Click on the tiny “More Info…” text under the small text for “Other updates available” and below the large macOS Ventura promotional banner
  4. Be sure that macOS Monterey 12.6.7 or macOS Big Sur 11.7.8 is selected, along with any other updates, and choose to update and install

MacOS Monterey 12.6.7 update and Safari 16.5.1

You will also see an update to Safari available that should be installed.n

MacOS will download and install the update that is available. The Mac must reboot to complete installation.

MacOS Monterey 12.6.7 & MacOS Big Sur 11.7.8 Full Installers

Direct download links from Apple for the InstallAssistant.pkg files are here:

macOS Monterey 12.6.7 Release Notes and macOS Big Sur 11.7.8 Release Notes

Release notes accompanying the software updates are as follows:

macOS Monterey 12.6.7 — Restart Required

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:

Separately, other Apple system software updates are available, including iOS 16.5.1, iPadOS 16.5.1, macOS Ventura 13.4.1, and watchOS.


Related articles:

Posted by: Paul Horowitz in Mac OS, News


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  1. dcd says:

    also MTLCompiler is running and has over 136 processes 1 hour after startup from 90mb per process down to 8.3 at this snapshot.

    started with 76 instances/processes — 1 hour later it is up to 136 and still climbing.

    I never noticed this many prior to most recent updates. anyone at all have a clue about what this means and if it’s another Monterey memory leak?

    • Don says:

      I’m in Sonoma and MTLCompiler also has about 60 processes running.

      I found this when looking up MTCompiler and MTCompilerService:

      MTL Compiler Service, better listed as MTLCompilerService, is a compiler for metal shaders, that can pass information directly to the GPU. It was released in iOS 8 as an alternative to using OpenGL. There’s a variety of performance reasons for the switch, though Apple fully supports use of both currently (with Metal being their preferred route).
      Basically it’s what runs between your application and your GPU/Video Card to speed up graphics processing and makes things prettier.

      I am not doing anything graphical on my Mac, just using Safari, Mail, Pages at the moment, so it must be a core system process for MacOS.

      I would not worry about it, seems normal.

      There are memory leaks in MacOS but they seem to be related to WindowServer and lots of windows open in my experience. An occasional reboot (once or twice a week) does a Mac a lot of good!

  2. dcd says:

    SAFARI is a major cpu hog after safari 16.5.1 update w Monterey 12.6.7 June 2023

    don’t know if it’s just safari or combo of safari w/ the Monterey update.

    major memory leak high ram use problems

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