check before: 2024-03-25
Product:
Defender, Defender for Endpoint, Defender XDR
Platform:
US Instances, World tenant
Status:
Change type:
Feature update, Admin impact
Links:
Details:
Microsoft Defender Antivirus is changing its support plan for the anti-malware scan "engine update" (MpEngine.dll) to only support N-2 versions. This is due to new security intelligence update logic being dependent on newer scan engine logic, and to ensure customers are not running an older scan engine version with a known vulnerability. The changes will take effect on May 1, 2024. To be fully supported, keep current with the latest engine updates. Minimum requirements are version 1.1.23110.2, version 1.1.24010.10, or newer.
Microsoft Defender Antivirus is rolling out an update to the support plan for the anti-malware scan "engine update" (MpEngine.dll). To align with the current Defender Antivirus platform update, only N-2 versions will be supported.
Reasons:
New security intelligence update logic is dependent on newer scan engine logic. Many new detections won’t trigger for customers running an older engine version (such as from 6 months to 2+ years ago).
Newer Defender Antivirus platform updates might crash due to an older engine logic that does not comprehend new functionalities [such as newer code in a Defender Antivirus platform update that works in unison with the engine update or newer endpoint data loss prevention (DLP) service, and so on].
We want to ensure you are not running an older scan engine version with a known vulnerability.
[When this will happen:]
General Availability (Worldwide, GCC, GCC High, DoD, USNat, and USSec): The changes will take effect May 1, 2024.
Change Category:
XXXXXXX ...
Scope:
XXXXXXX ...
Release Phase:
Created:
2024-03-12
updated:
2024-03-12
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