I do not believe I have ever heard of a feature request to add Tableau Version as a field to a published workbook. Would this be the Tableau version of the published workbook or the version of Tableau Server or Online currently hosting the dashboard? Please add this as a new Idea to Ideas and explain how it would be used and why with as much detail as possible. Please remember to vote up your own idea. Many people forget to add their votes to their own idea.