# Document history
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The following table describes the important changes to this decision guide. For notifications about updates to this guide, you can subscribe to an RSS feed.

| Change | Description | Date | 
| --- |--- |--- |
| [Guide updated](#document-revisions) | Added Amazon Aurora DSQL, Amazon Aurora PostgreSQL Limitless Database, and Oracle Database@AWS as covered services with dedicated sections. Added vector database comparison table. Added Amazon S3 Vectors, Amazon Keyspaces CDC streams, Amazon Timestream for InfluxDB 3, and Amazon Aurora express configuration. | May 4, 2026 | 
| [Minor updates](#document-revisions) | Updated links in the Use section. | August 14, 2025 | 
| [Guide updated](#document-revisions) | Updated to include vector database and vector search options, and provided additional links to new service-specific documentation. | December 22, 2024 | 
| [Guide updated](#document-revisions) | Updated Amazon RDS description to include Db2 support, and provided additional links to service-specific documentation. | May 13, 2024 | 
| [Initial publication](#document-revisions) | Guide first published. | September 11, 2023 |