We wanted to upgrade Jira from 7.3.1 to newest version of Jira. I guess it's 7.12.3 now. Jira is hosted to AWS.
Kindly let us know the details of,
(1) How to take backup of existing Jira and data
(2) Easiest way to upgrade it, without affecting end users and loosing any data (Project or User data/Login etc...)
(3) How to reload our data of 7.3.1 to newest installed version ? (i.e. 7.12.3 now)
(4) Do we need to take license for 7.12.3 too while having license for 7.3.1 ? If Yes, please let us know the process to get it.
(5) how to setup Jenkins Job to regularly take the backup of database.