When v14.0 launches, XBMC will be no more. Instead it will be known as Kodi.
For the reasons and more, check the announcement from the XMBC Foundation: XBMC Is Getting a New Name ? Introducing Kodi 14 | XBMC
For the reasons and more, check the announcement from the XMBC Foundation: XBMC Is Getting a New Name ? Introducing Kodi 14 | XBMC