Just installed the preview of the Fall ‘14 updates to Microsoft Dynamics CRM 2015. i first wanted to add some additional users (ME!), so i went to SETTINGS, ADMINISTRATION where Users have always been. not only was Users no longer, it looked pretty empty in general. So, i went searching. Eventually found a new sub-area under SETTINGS named Security. Opening that up I found (many of) the items missing in Administration, plus a couple of new ones, Positions and Hierarchy Security. More on those later. For now “my Administrator” has made me a User. YEA!