Hello,
I have a EAR/WAR verison of JIRA that is still running 4.2.1. Should I upgrade straight to 5.x, or upgrade first to 4.4, then up to 5.x?
You can upgrade it straight to 5.x. You just need to follow this doc for that:
https://confluence.atlassian.com/display/JIRA/Upgrading+JIRA+Manually
Hope that helps.
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