# Document revisions
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| Change | Description | Date | 
| --- |--- |--- |
| [Major update](#document-revisions) | Updated content throughout pillars. Added new scenario and updated reference architectures. | December 22, 2023 | 
| [Minor update](#document-revisions) | Fixed broken links. | April 6, 2023 | 
| [Minor update](#document-revisions) | Contributors updated. | January 5, 2023 | 
| [Major update](#document-revisions) | Added Sustainability content and numerous updates throughout. | November 17, 2022 | 
| [Minor update](#document-revisions) | Updates throughout and added placeholder for Sustainability. | September 14, 2022 | 
| [Whitepaper updated](#document-revisions) | Title changed to Data Analytics Lens. Major updates applied throughout.  | October 29, 2021 | 
| [Initial publication](#document-revisions) | Analytics Lens first published. | May 20, 2020 |