Deltav

The DCS System installed on our site is from Emerson DeltaV, made up of a redundant pair of CPU controllers TIPO MD-PLUS Controller Type EMERSON Cod. VE3006, Deltav installed on the HMI is version 8.4.1,
we wanted to upgrade Deltav to a more recent version; the questions : 1- what are the characteristics of the HMI (processor / RAM graphics card ....) compatible with the new version V13 / V14 2- we want to keep the same TIPO MD-PLUS CPU controller, what is the most recent version of Deltav compatible with this controller? Cordially