This whitepaper is for historical reference only. Some content might be outdated and some links might not be available.

# Document history
<a name="document-revisions"></a>

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| Change | Description | Date | 
| --- |--- |--- |
| [Minor update](#document-revisions) | Corrected the omission of data protection considerations. | February 7, 2024 | 
| [Major update](#document-revisions) | Updated to reflect new MQTT v5 support. Security and provisioning sections added, plus numerous updates throughout. | January 12, 2024 | 
| [Initial publication](#document-revisions) | Whitepaper first published. | September 22, 2021 | 

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