You can easily update existing documnts to create new versions.
Required access roles: Leader or Author
Use one of the following methods:
From the tile menu of the document, select Update.
Select the document you want to update and in the toolbar click
Update.
A new version of the document is created. The document in the list always shows the
most recent version. You can use the Properties pane for the document to access
Iterations (prior versions).
Important:
Deleting a document deletes all
available versions.