i feel this pain. lost a complex workflow to an accidental edit once. undo/redo exists for the current session but once you close the editor the history is gone. version history would be huge
not ideal but heres a workaround we use: before making significant changes to a workflow, duplicate it. name the copy something like "workflow-name-backup-dec15". that way you always have a snapshot to go back to
its manual and not a real version control system but it saved us twice already
the duplicate workaround is what were doing now too. not great but better than nothing. please add real version history @team this is a pretty critical feature for production workflows
agreed this would be really valuable. even just a simple "last 10 saves" history with restore would cover 90% of the need