Upgrading Jira Software from to 6.4 to 8.14.x on RHEL 7.6 platform?

[JH]

Did anyone ran into any issue or have any experience by upgrading Jira SW (Server) from to 6.4 to 8.14.x on RHEL 7.6 platform? 

[Nic Brough -Adaptavist- · Accepted solution]

Yes, loads.

Mostly app related, and all found during the test runs.  You absolutely must go through at least two steps of upgrade - 6.4 -> 7.0 -> target, and I suspect your test runs will tell you that 6.4 -> 7.0 -> 7.13 -> 8.5 -> 8.14 is the least problem-prone route. 

[JH]

Thanks Nic! BTW, how do you identify the corresponding Bitbucket/Confluence versions that go along with Jira 7/7.13/8.5...?  

[Nic Brough -Adaptavist-]

I don't, not any more.

It used to matter when we had Jira 4 and lower versions of 5, but even then, having a wide gap in the release dates didn't do too much harm - systems would talk to each other, but with one recent release and one ancient one, you'd just see a reduced function set, not a total failure.

Nowadays, I don't think you'll even notice much if you mixed Jira 7.0 to 8.latest with Bitbucket 6.0 to 7.latest and Confluence 6.0 to 7.latest.

[JH]

Nic, one more question.  Does Java 11 support latest version of Atlasian 8.14x?