We're currently setting at Jira version 5.4, can we just do one upgrade to 8.02

[Philip Gayle]

We're currently setting at Jira version 5.4, can we just do one upgrade to 8.02 or do we have to do it incrementally?

[Petr Vaníček]

Hi,

I'd be more careful with this. I agree with all with @Brant Schroeder , but I could go in this upgrade path (from my experience - my most interesting upgrade was from 3.x to 6.14).

current -> 6.0 -> 6.4 -> 7.0 -> 7.1 -> 7.13 -> 8.1

I know it's a lot of steps, but it's way how I should do it.

[Brant Schroeder]

Philip

I can not find anything specifically but I would suspect that you will have to do an incremental since you had to going up to 7.

I believe that this would be the upgrade path:
5.2.5 > 7.0.11 > 7.13.x > 8.0.2 (You might be able to skip 7.13.x)

Here's the upgrade documentation: 
https://confluence.atlassian.com/adminjiraserver/upgrading-jira-applications-using-the-installer-938846937.html

You should also check the supported platforms and ensure that you are good to go there: https://confluence.atlassian.com/adminjiraserver/supported-platforms-938846830.html?_ga=2.122344075.1417763911.1554129722-1785046573.1549295491

You can also submit a support ticket to confirm your upgrade path. https://support.atlassian.com/contact/