# 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/security-reference-architecture-iot/security-reference-architecture-iot.rss).

| Change | Description | Date | 
| --- |--- |--- |
| [Initial publication as standalone guide](#doc-history) | Converted from a chapter in the [AWS SRA – core architecture guide](https://docs.aws.amazon.com/prescriptive-guidance/latest/security-reference-architecture/) to an individual guide. | December 22, 2025 |