Update mac-whatsnew.md

[liam-x]

Add 2407 release note

[learn-build-service-prod]

Learn Build status updates of commit aeaa4a7:

✅ Validation status: passed

File	Status	Preview URL	Details
defender-endpoint/mac-whatsnew.md	✅Succeeded

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel

[denisebmsft]

Thank you @liam-x

[learn-build-service-prod]

Learn Build status updates of commit 237fdbb:

✅ Validation status: passed

File	Status	Preview URL	Details
defender-endpoint/mac-whatsnew.md	✅Succeeded

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel

[learn-build-service-prod]

Learn Build status updates of commit 27a77c9:

✅ Validation status: passed

File	Status	Preview URL	Details
defender-endpoint/mac-whatsnew.md	✅Succeeded

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel