The version history keeps snapshots of your components. You can go back to an earlier state at any time, and publish a specific version.
Opening the history
In a component: Menu › Version history. From your files: right-click › Version history.
Two kinds of versions
Tagged versions: you create them whenever you want, with a name and a description. These are the ones you publish.
Auto-saves: Kubme creates them on its own as you make changes. Check Show auto-saves to see them.
Creating a version
Click New version.
Enter a Version name ("v1", "Before redesign").
Describe What changed in this version?
Confirm.
Restoring
Click Restore next to a version: the component goes back to that state for everyone. Restoring itself creates a version, marked Restored from…: so you can always go back.
Deleting
Delete removes a version from the history.
Published versions
A version used by a published domain or widget must not be deleted: change the published version first.
Versions and publishing
What your visitors see is never your working copy, but a tagged version. So you can edit a component in peace, then publish your changes by creating a new version and assigning it to the domain or widget.