Upgrade from KS 9 to KS 11

[Decal26]

New to the Keyshot world.  We have KS9 , it was installed/configured by a VAR ( no longer available).  I am being asked to upgrade our environment to KS11 with NX integration.  Trying to work with support, but not getting much assistance. 

We have  clients boxes that run NX and KS, sending rendering to a farm ( 2 worker boxes), with a Master schedule server and a separate floating license server.

I am looking for assistance in determining the process to update all of this . 
Is there a specific order to perform tasks?
Do previous versions need to be uninstalled?
Will upgrade recognize previous version and read configuration/setup?

I have already received the updated license file.

Any help would be appreciated.

Thank you,
Dan