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

The following table describes significant changes to this guide.


| 
| 
| **Change** | **Description** | **Date** | 
| --- |--- |--- |
| Update | Updated the answer to the [FAQ about high availability](https://docs.aws.amazon.com/prescriptive-guidance/latest/evaluate-downgrading-sql-server-edition/faq.html#q9). | July 14, 2022 | 
| Update | Updated values in the [Compare SQL Server Enterprise and Standard edition features](https://docs.aws.amazon.com/prescriptive-guidance/latest/evaluate-downgrading-sql-server-edition/compare.html) section. | April 22, 2022 | 
| Initial publication | — | July 12, 2021 |