In their blog post on medium[1], they mention that it is built on git. webdesignledger.com[2] claims that it supports full version control. [1] https://medium.

In their blog post on medium[1], they mention that it is built on git. webdesignledger.com[2] claims that it supports full version control. [1] https://medium.com/@FolioForMac/building-a-better-time-machine-5c236db948a https://medium.com/@FolioForMac/building-a-better-time-machi... [2] http://webdesignledger.com/folio-version-control http://webdesignledger.com/folio-version-control