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Merge pull request #5028 from MicrosoftDocs/av-relnotes

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Monthly antivirus platform updates
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Tina Burden 2021-04-08 09:56:16 -07:00 committed by GitHub
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windows/security/threat-protection/microsoft-defender-antivirus/manage-updates-baselines-microsoft-defender-antivirus.md
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@ -13,18 +13,16 @@ ms.author: deniseb
ms.custom: nextgen ms.custom: nextgen
ms.reviewer: pahuijbr ms.reviewer: pahuijbr
manager: dansimp manager: dansimp
ms.date: 04/06/2021 ms.date: 04/08/2021
ms.technology: mde ms.technology: mde
--- ---
# Manage Microsoft Defender Antivirus updates and apply baselines # Manage Microsoft Defender Antivirus updates and apply baselines
[!INCLUDE [Microsoft 365 Defender rebranding](../../includes/microsoft-defender.md)]
**Applies to:** **Applies to:**
- [Microsoft Defender for Endpoint](/microsoft-365/security/defender-endpoint/) - [Microsoft Defender for Endpoint](/microsoft-365/security/defender-endpoint/)
- Microsoft Defender Antivirus
There are two types of updates related to keeping Microsoft Defender Antivirus up to date: There are two types of updates related to keeping Microsoft Defender Antivirus up to date:
@ -78,6 +76,24 @@ All our updates contain
<br/><br/> <br/><br/>
<details> <details>
<summary> March-2021 (Platform: 4.18.2103.6 | Engine: 1.1.18000.5)</summary>
&ensp;Security intelligence update version: **1.335.36.0**
&ensp;Released: **April 1, 2021**
&ensp;Platform: **4.19.2103.6**
&ensp;Engine: **1.1.18000.5**
&ensp;Support phase: **Security and Critical Updates**
### What's new
- Improvement to the Behavior Monitoring engine
- Expanded network brute-force-attack mitigations
- Additional failed tampering attempt event generation when [Tamper Protection](prevent-changes-to-security-settings-with-tamper-protection.md) is enabled
### Known Issues
No known issues
<br/>
</details><details>
<summary> February-2021 (Platform: 4.18.2102.3 | Engine: 1.1.17900.7)</summary> <summary> February-2021 (Platform: 4.18.2102.3 | Engine: 1.1.17900.7)</summary>
&ensp;Security intelligence update version: **1.333.7.0** &ensp;Security intelligence update version: **1.333.7.0**
@ -105,7 +121,6 @@ No known issues
### What's new ### What's new
- Additional failed tampering attempt event generation when [Tamper Protection](prevent-changes-to-security-settings-with-tamper-protection.md) is enabled
- Shellcode exploit detection improvements - Shellcode exploit detection improvements
- Increased visibility for credential stealing attempts - Increased visibility for credential stealing attempts
- Improvements in antitampering features in Microsoft Defender Antivirus services - Improvements in antitampering features in Microsoft Defender Antivirus services
@ -115,7 +130,13 @@ No known issues
### Known Issues ### Known Issues
No known issues No known issues
<br/> <br/>
</details><details> </details>
### Previous version updates: Technical upgrade support only
After a new package version is released, support for the previous two versions is reduced to technical support only. Versions older than that are listed in this section, and are provided for technical upgrade support only.
<br/><br/>
<details>
<summary> November-2020 (Platform: 4.18.2011.6 | Engine: 1.1.17700.4)</summary> <summary> November-2020 (Platform: 4.18.2011.6 | Engine: 1.1.17700.4)</summary>
&ensp;Security intelligence update version: **1.327.1854.0** &ensp;Security intelligence update version: **1.327.1854.0**
@ -131,13 +152,7 @@ No known issues
### Known Issues ### Known Issues
No known issues No known issues
<br/> <br/>
</details> </details><details>
### Previous version updates: Technical upgrade support only
After a new package version is released, support for the previous two versions is reduced to technical support only. Versions older than that are listed in this section, and are provided for technical upgrade support only.
<br/><br/>
<details>
<summary> October-2020 (Platform: 4.18.2010.7 | Engine: 1.1.17600.5)</summary> <summary> October-2020 (Platform: 4.18.2010.7 | Engine: 1.1.17600.5)</summary>
&ensp;Security intelligence update version: **1.327.7.0** &ensp;Security intelligence update version: **1.327.7.0**