Notice: macOS 12 (Monterey) Advisory (Oct 13 10:10 am)

01/25/2022 update:
This is an update to the original macOS 12 Monterey advisory sent on October 13, 2021:
ITS had previously recommended against upgrading to macOS 12 Monterey while compatibility with ITS supported software and applications could be tested. ITS has since tested Monterey with ITS supported software ( and has found no problems as long as the latest versions of the software are being used. ITS has also tested Monterey with ITS supported web applications ( and has encountered no problems so far. As a result, ITS has now adopted support for macOS 12 Monterey (
If you decide to upgrade to Monterey, please make sure that your Mac has the latest versions of any software such as Microsoft Office. If you depend on any software that is not listed on the ITS supported software page, please check with the software's vendor to make sure it is compatible with Monterey before updating. You should also check the ITS supported web applications and make sure the ones you use have been tested as working with Monterey. If updating to macOS 12 Monterey, ITS recommends that you update to 12.1, the current release version (as of this writing).
Apple's minimum system requirements to upgrade to macOS 12 Monterey can be found here: However, should you decide to upgrade to Monterey, ITS recommends that your Mac have 16GB of RAM or more and at least 50GB of available hard drive space. A more recent (2016 or newer) computer with an i5 or better processor is also recommended.
Apple is expected to release macOS 12 (Monterey) on Monday, October 25, 2021. At this time, ITS recommends against upgrading to macOS 12 (Monterey).
macOS Monterey is a major update to the macOS operating system, taking it from version 11 to version 12. As has been experienced with previous major updates, there is a possibility that applications, especially older applications, may not be immediately compatible upon release of Monterey.
Until Monterey is released, ITS will not be able to fully test to see which applications are not compatible. This notice will be updated as more information becomes available.
To prevent your macOS from updating to Monterey automatically, please do the following:

  1. Go to the Apple menu and select "System Preferences"
  2. Click on the "Software Update" icon
  3. Make sure the box for "Automatically keep my Mac up to date" is unchecked
  4. Click on the "Advanced" button
  5. Uncheck the box for "Install macOS updates"
  6. If desired, also uncheck the box for "Download new updates when available"
  7. Click "OK"
  8. Close the Software Update window

In general, ITS recommends against immediately upgrading to the latest version of any operating system when it is first released due to the possible compatibility issues.
If you have questions or need assistance, please contact the ITS Help Desk.