Microsoft's late-2012 general release of Exchange was a beta in all but name, but now the meat of the update has arrived Yes, I realize Exchange 2013 went GA in November 2012.
http://www.infoworld.com/d/microsoft-windows/exchange-2013-finally-ready-production-use-216092
http://www.infoworld.com/d/microsoft-windows/exchange-2013-finally-ready-production-use-216092
