I'm planing to upgrade my SonarQube server from version 3.5 to 5.1. I have took the database backup. I have some questions to be answered before upgrading. That's why I' here.
Question1 : Actually is it possible to upgrade from 3.5 to 5.1(It seems a big deference between these two versions).
Question2 : What are the things I should do before upgrading except database backup
Thanks for any help