AWS Config now supports tracking of Amazon CloudWatch alarm configurations. Amazon CloudWatch is a monitoring service for AWS cloud resources and the applications you run on AWS. You can use CloudWatch to access up-to-the-minute statistics, collect metrics, and set alarms for your metric data to help you troubleshoot, spot trends, and take automated action based on the state of your cloud environment. With this integration, you can now use Config to view the historical configuration of your CloudWatch alarms and review all changes that occurred to them. For example, you can now determine why CloudWatch alarms did not get triggered and receive Amazon Simple Notification Service (Amazon SNS) notifications when your alarm configurations change.