When using DSM Free, your library exists as a shared draft that will update automatically any time you make a change. This draft is available to all collaborators you’ve invited to your library.
Warning: There is no way to roll back to a previous version of a library on DSM Free.
With DSM Enterprise, you have access to version control. This allows you to work in a shared draft until you’re ready to publish. After you’ve published, you can always roll back to a previously published version.