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Question

Defer major macOS updates macOS 27

  • June 16, 2026
  • 4 replies
  • 109 views
BCPeteo
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So It seems Apple has removed some MDM control of macOS updates in macOS 27 and they are only allowing using DDM commands to do this.

Wanting to know if the Defer Major macOS updates MDM profile setting will work in macOS 27 or is this gone too? (I would assume that deferring upgrading to 27 will still work since older versions of the OS still support MDM update control. This is more about the future) 

I see with Jamf 11.29 that the download & schedule install is now DDM and works on prem but what we are really looking for is a way to continue Defer Major macOS updates for 90 days. We are not in Jamf cloud and not really looking to move.

4 replies

PaulHazelden
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  • PaulHazelden
  • Jamf Heroes
  • June 17, 2026

Pretty sure that in OSX 27 the MDM command to defer will not work.
BUT...
If you use Blueprints with DDM, then you can go back to having major OSX version deferals at 90 days.There is a deferal section in the Blueprints for Software Updates.
I think if you set up SSO sign in to your on Prem then you can get access to Blueprints.

BCPeteo
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  • BCPeteo
  • Author
  • Contributor
  • June 17, 2026

Thanks as noted above I do not have JAMF Cloud nor do we have Jamf ID SSO setup (we have our own SSO on prem for jamf) so I do not have access to blue prints.

It would be nice if JAMF enabled DDM macOS deferrals for on prem like they are doing for the Download & schedule DDM command. 

PaulHazelden
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  • PaulHazelden
  • Jamf Heroes
  • June 17, 2026

The deferrals may be on their way. I was at JNL London yesterday, and they showed it in a demo, said there were upgrades coming at the end of the month.
It’s Apple and their push for DDM, that is driving this. They did say there are things in progres for on Prem servers.

    BCPeteo
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    • BCPeteo
    • Author
    • Contributor
    • June 22, 2026

    Thank you for that info, look forward to learning more.

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