> For the complete documentation index, see [llms.txt](https://sway-technologies.gitbook.io/sway-charts-api-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sway-technologies.gitbook.io/sway-charts-api-documentation/rest-api-specification/getting-started/entity-versioning.md).

# Entity Versioning

The Sway Charts REST API supports the notion of *entity versions*. Each business entity (such as an account) has a version which is a number that increases monotonically with any changes. It is possible to find out the order of updates by comparing versions: most recent entity’s version will be the greatest.