# Document History
<a name="document-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/security-reference-architecture/security-reference-architecture.rss). 


|  |  |  | 
| --- |--- |--- |
| Change | Description | Date | 
| Initial Release | First release of the guidance | 21 July, 2026 |