Upgrade of Linux Jira server from 4.1.2 to 5.1.4

[Ken Runner]

I am trying to upgrade from version 4.1.2 to 5.1.4 of Jira on a Linux server using MySQL for the DB. Can't do this is a single step, so the question is what version should I use for the intermediate step?

[Sultan Maiyaki [Atlassian]]

As mentioned on this page you can actaully go directly from 4.x to 5.x but we strongly advice going through an intermediary stable version of the 4 series. In this case, you shoud go to 4.4.5 and then to 5.1.4

[Nic Brough [Adaptavist]]

I've done 4.0 to 5.1 safely - run into two issues - some user group memberships are dropped, and Greenhopper creates duplicate fields. Both minor problems and fixable in the database.

However - this system, although large, is moderately simple. There are a small handful of well-maintained plugins, we've done a lot of standardisation and "reuse fields as much as possible". It's still messy, but not horribly so.

However you approach this, you MUST test it properly. Rig up a test system, and try a single upgrade run. If you hit problems, then go straight back to Sultan's answer for the next test run - do 4.x to 4.4.5

Oh, and I wouldn't use 5.1.4 either. Go to at least 5.1.7 and I'd recommend 5.1.8