# 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/robust-network-design-control-tower/robust-network-design-control-tower.rss).

| Change | Description | Date | 
| --- |--- |--- |
| [Removed information](#doc-history) | Removed the sections about centralized DNS and centralized inbound traffic. | September 30, 2024 | 
| [Added information](#doc-history) | Added a section about [decentralized DNS and Amazon Route 53 Profiles](https://docs.aws.amazon.com/prescriptive-guidance/latest/robust-network-design-control-tower/decentralized-dns.html). | September 20, 2024 | 
| [Initial publication](#doc-history) | — | December 27, 2023 |