# Document revisions
Document revisionsMinor update

Corrected numbering of questions to match the SaaS Lens in the AWS Well-Architected Tool.Minor update

Figure 28 corrected.Minor update

Figure corrected for clarity.Initial publication

SaaS Lens first published.

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| Change | Description | Date | 
| --- |--- |--- |
| [Major update](sustainability.md) | Guidance for sustainability was added. | April 4, 2023 | 
| [Minor update](#document-revisions) | Corrected numbering of questions to match the SaaS Lens in the AWS Well-Architected Tool. | September 23, 2022 | 
| [Minor update](#document-revisions) | Figure 28 corrected. | August 1, 2022 | 
| [Minor update](#document-revisions) | Figure corrected for clarity. | December 11, 2020 | 
| [Initial publication](#document-revisions) | SaaS Lens first published. | December 3, 2020 |