A newer version of macOS will be released later this year. With Apple’s release of macOS Ventura (13), macOS Catalina (10.15) will become the third oldest version and will cease to be supported at that time, As a result, Microsoft Defender for Endpoint will no longer support macOS version Catalina (10.15).
Note: this message applies only to organizations with macOS devices in their environments.
When this will happen
Microsoft Defender for Endpoint will no longer support macOS version Catalina (10.15) after mid-December.
How this will affect your organization
After mid-December, if your environment still has macOS devices running macOS version Catalina (10.15), after the change any macOS Catalina 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, review the version of macOS devices in your environment and ensure macOS devices that are still running macOS version Catalina (10.15) are updated to a more recent macOS version. We will send another announcement soon as a reminder.
Microsoft Defender for Endpoint (MDE) on Mac currently supports macOS versions Ventura (13), Monterey (12) and Big Sur (11).
- 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: MC447340
Action required by: 2022-12-15
Platform: Mac, World tenant