Nakisa Upgrade from 2.1 to 4.0

Hello Friends,

We have a scenario to upgrade from Nakisa 2.1 to 4.0.

I was reading an informative blog by Stephen Burr where its mentioned from version 2.1 to 4.0 one has to "Re-implement".

I am slightly confused with this "Re-implement" thing is it that we have to first undeploy exisiting 2.1 completely from command level and then deploy 4.0 build. Is my understanding correct ?

(followed: Upgrading Visualization Solutions by Nakisa (Part 3) – Carrying out the upgrade

Another question I have is, How will I import my exisiting VSN configuration from version 2.1 to 4.0, is it through "Import build" (which is in the form of .zip file) ?

Your suggestions will be highly appreciated.

Thanks

Ayush