# Document revisions
Document revisionsMajor update

Best practices have been added across the entire whitepaper. Many sections have been updated with new prescriptive guidance.Major update

Updated to include Lens Checklist, industrial IoT (IIoT), and new AWS IoT services and features.Minor update

Updated link.Whitepaper updated

Updated to include additional guidance on IoT SDK usage, bootstrapping, device lifecycle management, and IoTInitial publication

IoT Lens first published.

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| Change | Description | Date | 
| --- |--- |--- |
| [Major update](#document-revisions) | Best practices have been added across the entire whitepaper. Many sections have been updated with new prescriptive guidance. | July 2, 2025 | 
| [Major update](#document-revisions) | Updated to include Lens Checklist, industrial IoT (IIoT), and new AWS IoT services and features. | March 31, 2023 | 
| [Minor update](#document-revisions) | Updated link. | March 10, 2021 | 
| [Whitepaper updated](#document-revisions) | Updated to include additional guidance on IoT SDK usage, bootstrapping, device lifecycle management, and IoT | December 23, 2019 | 
| [Initial publication](#document-revisions) | IoT Lens first published. | November 1, 2018 |