# Document history
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The following table describes significant changes to this guide. If you want to be notified about future updates, you can subscribe to an [RSS feed](https://docs.aws.amazon.com/prescriptive-guidance/latest/migration-tools/migration-tools.rss).

| Change | Description | Date | 
| --- |--- |--- |
| [Added Concierto.cloud](#doc-history) | We added Concierto.cloud to the [Discovery tools](https://docs.aws.amazon.com/prescriptive-guidance/latest/migration-tools/discovery.html), [Business case tools](https://docs.aws.amazon.com/prescriptive-guidance/latest/migration-tools/business-case.html), and [Application mobility tools](https://docs.aws.amazon.com/prescriptive-guidance/latest/migration-tools/app-mobility.html) sections. | November 17, 2025 | 
| [Initial publication](#doc-history) | We migrated the information from an AWS web page to a comprehensive guide. | March 21, 2025 |