The "Publish a major version" command in SharePoint
This command causes the selected document to become a new major version. A Hyper.Net transformation request for the new major version is created if SharePoint document approval is not enabled. If approval is enabled, a Hyper.Net transformation request for the new major version will not be created until the document is approved. Hyper.Net then processes the request, replacing the previous version of the publication (for example 2.0) with the new version of the publication (for example 3.0).