# Document history
<a name="doc-history"></a>

The following table describes significant changes to this guide.


| 
| 
| Change | Description | Date | 
| --- |--- |--- |
| Updated logging information | Updated the section about [logging for AWS Lambda](lambda-logging-metrics.md). | April 17, 2023 | 
| Updated configuration information | Updated and renamed the section about [creating and storing CloudWatch configurations](creating-and-storing-cloud-watch-agent-configuration-files.md). | February 9, 2023 | 
| Updated metrics information | Updated the custom application metrics information in the [Metrics for Amazon ECS](metrics-for-amazon-ecs.md) section. | January 31, 2023 | 
| Removed preview notices | Amazon Managed Grafana is generally available. | May 25, 2022 | 
| Removed section | CloudWatch SDK Metrics is no longer supported. | January 7, 2022 | 
| Initial publication | — | April 30, 2021 |