Does DigitalOcean support taking branched snapshots?

Taking a branched snapshot (i.e. taking a snapshot based on a previously taken snapshot) would save a lot of resources for both the DO servers and the users (in terms of storage and transfer). If a user has a droplet with a significant size, then takes a snapshot of it, then he makes little changes and wants to back everything up before making further changes that could break things up. It would be wise to only back up only the little changes that he made and not the whole droplet. That is a waste of storage, time, transfer, energy! I use VirtualBox and I take snapshots of VMs all the time. There is nothing in the UI suggests DigitalOcean supports this functionality. if DO doesn’t support that, is there any good reason for not doing so?