Merge pull request #3379 from assafyatziv/patch-3

Update release-notes.md - action required AFD

Author: Ruchika-mittal01

CloudAppSecurityDocs/release-notes.md

@@ -7,6 +7,10 @@ ms.topic: overview
 
 # What's new in Microsoft Defender for Cloud Apps
 
+>[!IMPORTANT]
+>
+> **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).
+>
 *Applies to: Microsoft Defender for Cloud Apps*
 
 This article is updated frequently to let you know what's new in the latest release of Microsoft Defender for Cloud Apps.