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+---- Thread: Microsoft Defender Antivirus security intelligence January 2026 (/showthread.php?tid=21706)
Microsoft Defender Antivirus security intelligence January 2026 - harlan4096 - 01 April 26
Quote:Stable channel updates:Enhancements and features​
- Antimalware Client Version: 4.18.26020.6
- Engine Version: 1.1.26020.3
Microsoft Defender for Endpoint release notes - Microsoft Defender for Endpoint
- Improved the network protection feature to promptly release closed connections and reduce unnecessary memory usage.
- Fixed an issue where the Get-MpComputerStatus PowerShell cmdlet could fail after updates due to a configuration mismatch.
- Improved performance for Network Response Intelligence (NRI) by reducing CPU usage during high-volume asynchronous message processing.
- Added support for AMSI path exclusions for Exchange Server so configured path exclusions are now correctly evaluated during AMSI scanning for Exchange workloads.
- Improved policy refresh behavior for device control by updating default policy and Azure AD refresh intervals to reduce retry frequency.