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- Support phase: **Security and Critical Updates**
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@@ -148,28 +148,6 @@ All our updates contain
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- Improved health monitoring and telemetry for [attack surface rules](overview-attack-surface-reduction.md) exclusions.
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- Updated inaccurate information in [Configure exclusions for files opened by processes](configure-process-opened-file-exclusions-microsoft-defender-antivirus.md) regarding wildcard usage with contextual exclusions.
- Support phase: **Security and Critical Updates**
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#### What's new
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- Added manageability settings to opt out for One Collector telemetry channel and Experimentation and Configuration Service (ECS).
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- Microsoft Defender Core Service will be disabled when 3rd party Antivirus is installed (except when Defender for Endpoint is running in Passive mode).
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- The known issue in [4.18.24020.7](msda-updates-previous-versions-technical-upgrade-support.md#february-2024-engine-11240209--platform-418240207) where enforcement of device level access policies wasn't working as expected no longer occurs.
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- Fixed high CPU issue caused by redetection done during Sense originating scans.
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- Fixed an issue with Security Intelligence Update disk cleanup.
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- Fixed an issue where the Signature date information on the Security Health report wasn't accurate.
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- Introduced performance improvements when processing paths for exclusions.
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- Added improvements to allow recovering from erroneously added [Indicators of compromise (IoC)](manage-indicators.md).
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- Improved resilience in processing [attack surface reduction](attack-surface-reduction.md) exclusions for Anti Malware Scan Interface (AMSI) scans.
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- Fixed a high memory issue related to the [Behavior Monitoring](behavior-monitor.md) queue that occurred when MAPS is disabled.
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- A possible deadlock when receiving a [Tamper protection](prevent-changes-to-security-settings-with-tamper-protection.md) configuration change from the [Microsoft Defender portal](https://security.microsoft.com) no longer occurs.
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### Previous version updates: Technical upgrade support only
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After a new package version is released, support for the previous two versions is reduced to technical support only. For more information about previous versions, see [Microsoft Defender Antivirus updates: Previous versions for technical upgrade support](msda-updates-previous-versions-technical-upgrade-support.md).
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