In case you are using Azure Application Insights to monitor the performance and availability of your applications (mobile or web application), you must know that the public IP addresses used by the Live Metrics Stream feature (used to live probe your application) have changed.
If you use firewall outbound restriction you must update your firewall rules to update with the newest IP address listed here https://docs.microsoft.com/en-us/azure/azure-monitor/app/ip-addresses#outgoing-ports
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