Microsoft Defender Antivirus: Changes to “engine update” support plans
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.


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