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

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/query-best-practices-redshift/query-best-practices-redshift.rss).

| Change | Description | Date | 
| --- |--- |--- |
| [Removed AQUA](#doc-history) | We removed information about Advanced Query Accelerator (AQUA). | June 14, 2024 | 
| [Initial publication](#doc-history) | — | February 3, 2023 |