New Update Security Intelligence Updates in Microsoft Defender (Threat Detection Changelog)

[simmerskool]

W11 Pro. Enable beta channel via GPO or Powershell command.

"stuck" with win10 unless I buy some hardware. thanks!

 

[oldschool]

"stuck" with win10 unless I buy some hardware. thanks!

You can still enable the Beta channel.

 

[oldschool]

Beta channel update

Antimalware Client Version: 4.18.25030.2

 

[oldschool]

Microsoft Defender Antivirus security intelligence and product updates - Microsoft Defender for Endpoint

March-2025 (Engine 1.1.25030.1)

Security intelligence update version: 1.427.3.0
Release date: April 1, 2025 (Engine only)
Platform: 4.18.25020.1009
Engine: 1.1.25030.1
Support phase: Security and Critical Updates

What's new

Product improvements

 

[Fel Grossi]

Microsoft Defender Antivirus security intelligence and product updates - Microsoft Defender for Endpoint

Manage how Microsoft Defender Antivirus receives protection and product updates.

learn.microsoft.com

March-2025 (Platform: 4.18.25030.2 | Engine 1.1.25030.1)​

• Security intelligence update version: 1.427.3.0
• Release date: April 1, 2025 (Engine) / April 9, 2025 (Platform)
• Platform: 4.18.25030.2
• Engine: 1.1.25030.1
• Support phase: Security and Critical Updates

What's new​

• Improved caching of device control settings to improve reliability in occasionally connected environments.
• Performance improvement in on-access scans of files in network locations.
• Fixed the Defender service description to match the latest installed version.
• Improved Defender engine update logic when the update is included in a custom image.
• Fix in health reporting where signature update data might have been incorrect.
• Fixed reporting issue with controlled folder access (CFA) protected folders using the PowerShell cmdlet Get-MpPreference when CFA is disabled.
• Improved performance when scanning UPX-packed files (Ultimate Packer for eXecutables) and updated the validation process to verify the integrity of the packed file itself.
• Added support for distinguishing regular cloud allow signatures from clean Indicators of Compromise (IoC) in attack surface reduction (ASR).

 

[oldschool]

Beta channel update to

Engine Version: 1.1.25040.1

 

[TairikuOkami]

4.18.25040.2

https://download.windowsupdate.com/c/msdownload/update/software/defu/2025/04/updateplatform.amd64fre_8ed5fc344b6f5d307f0dec682298e9a2d8469e9f.exe

 

[oldschool]

4.18.25040.2

https://download.windowsupdate.com/c/msdownload/update/software/defu/2025/04/updateplatform.amd64fre_8ed5fc344b6f5d307f0dec682298e9a2d8469e9f.exe

Yes, that's the latest platform version I show on beta channel. AFAIK the stable channel hasn't caught up, at least according to release notes.
Microsoft Defender Antivirus security intelligence and product updates - Microsoft Defender for Endpoint