Merge pull request #2607 from maximvelichko/user/mavel/whatsnew

Update mac-whatsnew.md

Author: Ruchika-mittal01

defender-endpoint/mac-whatsnew.md

@@ -2,9 +2,8 @@
 title: What's new in Microsoft Defender for Endpoint on Mac
 description: Learn about the major changes for previous versions of Microsoft Defender for Endpoint on Mac.
 ms.service: defender-endpoint
-author: emmwalshh
-ms.author: ewalsh
-ms.reviewer: joshbregman
+author: deniseb
+ms.author: deniseb
 manager: deniseb
 ms.localizationpriority: medium
 ms.date: 01/24/2025
@@ -16,6 +15,7 @@ ms.collection:
 ms.topic: reference
 ms.subservice: macos
 search.appverid: met150
+ms.reviewer: mavel
 ---
 
 # What's new in Microsoft Defender for Endpoint on Mac
@@ -64,18 +64,32 @@ If an end user encounters a prompt for Defender for Endpoint on macOS processes
 
 Behavior monitoring monitors process behavior to detect and analyze potential threats based on the behavior of the applications, daemons, and files within the system. As behavior monitoring observes how the software behaves in real-time, it can adapt quickly to new and evolving threats and block them. To learn more, see [Behavior Monitoring in Microsoft Defender for Endpoint on macOS](behavior-monitor-macos.md).
 
+### Jan-2025 (Build: 101.24122.0005  | Release version: 20.124122.5.0)
+
+| Build:             | **101.24122.0005**    |
+|--------------------|-----------------------|
+| Release version:   | **20.124122.4.0**     |
+| Engine version:    | **1.1.24080.11**      |
+| Signature version: | **1.419.351.0**       |
+
+##### What's new
+
+- Removed support of macOS 12, the minimal requirement is now macOS 13.0 or later
+- Fix: Defender quarantines a file even if it is marked as immutable
+- `mdatp health` can return [`out_of_date`](device-health-microsoft-defender-antivirus-health.md#up-to-date-definitions) status for `definitions_status`
+- Bug and performance fixes
+
 ### Dec-2024 (Build: 101.24102.0018  | Release version: 20.124102.18.0)
 
-| Build:             | **101.24102.0018**         |
+| Build:             | **101.24102.0018**    |
 |--------------------|-----------------------|
-| Release version:   | **20.124102.18.0** |
-| Engine version:    | **1.1.24080.10**       |
-| Signature version: | **1.419.298.0**      |
+| Release version:   | **20.124102.18.0**    |
+| Engine version:    | **1.1.24080.10**      |
+| Signature version: | **1.419.298.0**       |
 
 ##### What's new
 
 - **Improved User/Group Permission Handling** - Added reporting in `mdatp-health` for user/group permission issues for Defender files. On restart Defender attempts to cure these issues.
-
 - Bug and performance fixes.