I am attempting to upgrade from 3.13.5 to version 6.
My plan is to abandon all modifications to my JIRA instance, bring forward the issues, and then bring the customizations back one by one. Is there a recommended way to do this other than stepping through the versions?
The articles I've read suggest doing the following path:
3.13.5 > 4.0 > 4.4.5 > 5.0 > 6.0
However, when I try to upgrade to 4.0, the installer does not give an option to upgrade, and the 4.4.5 installer says that it cannot upgrade the existing version.