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release note fix and important message
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CloudAppSecurityDocs/network-requirements.md

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>[!IMPORTANT]
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> **Take Immediate Action by April, 21 2025**, to ensure optimal service quality and prevent the interruption of some services: Please update your firewall rules to allow outbound traffic on port 443 for the following IP addresses: 13.107.228.0/24, 13.107.229.0/24, 13.107.219.0/24, 13.107.227.0/24, 150.171.97.0/24. Alternatively, if you currently allow outbound traffic based on Azure service tags, please add the new Azure service tag, ‘AzureFrontDoor.MicrosoftSecurity’ to your allowlist. This tag will be adjusted to reflect the above range by April 21, 2025.
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> **Take Immediate Action by April, 21 2025**, to ensure optimal service quality and prevent the interruption of some services. Update your firewall rules to allow outbound traffic on port 443 for the following IP addresses: 13.107.228.0/24, 13.107.229.0/24, 13.107.219.0/24, 13.107.227.0/24, 150.171.97.0/24. Alternatively, if you currently allow outbound traffic based on Azure service tags, please add the new Azure service tag, ‘AzureFrontDoor.MicrosoftSecurity’ to your allowlist. This tag will be adjusted to reflect the above range by April 21, 2025.
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> This change only affects commercial customers of Microsoft Defender for Cloud Apps. Customers connected to the Gov US1 or GCC datacenters won't be affected.
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This article provides a list of ports and IP addresses you need to allow and allowlist to work with Microsoft Defender for Cloud Apps.
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CloudAppSecurityDocs/release-notes.md

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# What's new in Microsoft Defender for Cloud Apps
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>[!IMPORTANT]
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> **Take Immediate Action by April, 21 2025**, to ensure optimal service quality and prevent the interruption of some services. This change will only affect your organization if you are using a firewall allowlist that restricts outbound traffic based on IP addresses or Azure service tags. Please update your firewall rules to allow outbound traffic on port 443 for the following IP addresses:13.107.228.0/24, 13.107.229.0/24, 13.107.219.0/24, 13.107.227.0/24, 150.171.97.0/24. Alternatively use as an additional Azure service tag, ‘AzureFrontDoor.MicrosoftSecurity’, that will be adjusted to reflect the above range by April 21, 2025. This update should be completed and the IP addresses or new Azure service tag added to your firewall's allowlist by April 21, 2025. Learn more: [Network requirements](https://aka.ms/MDANetworkDocs).
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*Applies to: Microsoft Defender for Cloud Apps*
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For news about earlier releases, see [Archive of past updates for Microsoft Defender for Cloud Apps](release-note-archive.md).
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>[!IMPORTANT]
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> **Take Immediate Action by April, 21 2025**, to ensure optimal service quality and prevent the interruption of some services. This change will only affect your organization if you're using a firewall allowlist that restricts outbound traffic based on IP addresses or Azure service tags. Update your firewall rules to allow outbound traffic on port 443 for the following IP addresses: 13.107.228.0/24, 13.107.229.0/24, 13.107.219.0/24, 13.107.227.0/24, 150.171.97.0/24. Alternatively use as an additional Azure service tag, ‘AzureFrontDoor.MicrosoftSecurity’, that will be adjusted to reflect the above range by April 21, 2025. This update should be completed and the IP addresses or new Azure service tag added to your firewall's allowlist by April 21, 2025.
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> This change only affects commercial customers of Microsoft Defender for Cloud Apps. Customers connected to the Gov US1 or GCC datacenters won't be affected.
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> Learn more: [Network requirements](https://aka.ms/MDANetworkDocs).
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## April 2025
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