Learn Editor: Update tvm-block-vuln-apps.md

Author: tdoucett-ms

defender-vulnerability-management/tvm-block-vuln-apps.md

@@ -80,6 +80,9 @@ For both actions, you can customize the message the users see. For example, you
 
 8. Review the selections you made and **Submit request**. On the final page, you can choose to go directly to the remediation page to view the progress of remediation activities and see the list of blocked applications.
 
+> [!NOTE]
+> Starting December 3rd, 2024, customers will see a reduction in the number of file indicators that are created by new Application Block policies. In order for customers with existing application block policies to reduce their current indicator usage, blocked applications must be unblocked and new policies must be created.
+
 > [!IMPORTANT]
 > Based on the available data, the block action will take effect on endpoints in the organization that have Microsoft Defender Antivirus. Microsoft Defender for Endpoint will make a best attempt effort of blocking the applicable vulnerable application or version from running.