One of my customers is currently running MS Exchange 2010 SP3. There are a lot of issues with the 2010 OWA and the newer browsers like IE 11 and Chrome. IE11 only runs the light version of the OWA and chrome will not allow most of the buttons on a new message to work. I am trying to figure out if it is possible to upgrade from the 2010 OWA to the 2013 OWA without having to upgrade the entire exchange server itself. Is this something that can be done or am I just grasping at straws here?

Hi,

You must have Exchange 2013 to have 2013 OWA