How hard to upgrade Kibana from 4.5.1 (or 4.5.2) to latest 4.5.x

Done.
The Oracle box was a troublesome becauase it has no direct Internet so I had to d/load the RPM and use yum localinstall to run it. Kibana would not start no matter what I did so I uninstalled Kibana and then again installed and after a reboot it worked.

The Ubuntu box which has direct Internet access went through like a breeze... no problem

I have not updated the plugins though, but they are all working as normal.