Ubiquity uses a document versioning system to ensure content is easily trackable, can be updated on the fly, and can be reverted to an older version if need be.
All app content is made up of pages. Pages are contained in documents.
The pages that a document contains, and the document's configuration options, are set on a version-by-version basis.
App users can download the most recently published version of a document from the app library.
To add a create a new version of an existing document:
Click on the Versions tab.
The new version will be created and added to the top of the versions list.