Problem with "save as" feature

Problem with "save as" feature

Need help!  As I understand version 3 the "save as" feature is the only way to save a document--I cannot find a "save" feature.  This is problematic for published documents.  After editing a document, even when saving under the same name, I find that I must go through the process of re-publishing the document (with the new link) otherwise the existing links which have been distributed to others will link to the pre-saved version of the document.