Pre Sales questions
Using Jamroom
There is really no upgrade from 4 to 5.
You'll install JR5, in a separate directory than JR4, then you can import your profiles, users and media from your JR4 install. After that you can make sure your JR5 site is setup the way you want it before removing your JR4 install and possibly moving your JR5 site to your root if you so desire.
https://www.jamroom.net/the-jamroom-network/documentation/getting-started
Hope this helps,
Douglas