MC298394: Microsoft Defender for Endpoint on Mac is retiring support of macOS Mojave [10.14]

Beginning December 15, 2021 , Microsoft Defender for Endpoint (formerly known as MDATP) will no longer support macOS version Mojave 10.14 Apple ended support for Mojave 10.14 in November 2021.

Note: this message applies only to organizations with macOS devices in their environments.

MC298394: Microsoft Defender for Endpoint on Mac is retiring support of macOS Mojave [10.14]

Key points

  • Timing: December 15, 2021
  • Action: review version of macOS devices in your environment and ensure macOS devices that are still running macOS Mojave 10.14 are updated to a more recent macOS version.

How this will affect your organization

On December 15, 2021 , if your environment still has macOS devices running macOS version Mojave 10.14, after the change any macOS Mojave machine running Microsoft Defender for Endpoint (Mac) will remain protected until the agent expiration, however it will fail to update (error will be logged in /Library/Logs/Microsoft/autoupdate.log ).

What you need to do to prepare

To eliminate risk of losing protection, ensure to update all macOS devices in your environment to a macOS version newer than macOS Mojave.

  • Microsoft Defender for Endpoint (MDE) on Mac currently supports macOS versions Monterey 12, Big Sur 11 and Catalina 10.15.

Refer to MDE (Mac) public documentation for list of system requirements: Microsoft Defender for Endpoint on Mac

Monitor “what’s new on Mac” page for incremental changes across versions of MDE (Mac): What’s new in Microsoft Defender for Endpoint on Mac

Message ID: MC298394
Published: 2021-11-16
Updated: 2021-11-16
#UserImpact #AdminImpact #Retirement
Plan For Change