I would not recommend doing that.
I would strongly recommend following the upgrade path given in the documentation, and not skipping version 7.0 or 7.1. See https://confluence.atlassian.com/adminjiraserver071/upgrading-jira-applications-802592251.html
I agree with Nic, Skipping major versions when upgrading JIRA applications - Atlassian Documentation even makes this very clear, you need to go to a 7.0.x version first.
After upgrading to 7.0.x, make sure you update all the plugins you use with Jira for this version and make sure everything works. Only then can you upgrade to the latest version.
Lots of support cases created because users tried to restore a 6.x version or older of Jira to a 7.2.x or higher version and it ends up not being able to upgrade some data. The Jira upgrade guide for 7.2+ from older versions explains what steps you should take to upgrade form that older version.
I’m a designer on the Jira team. For a long time, I’ve fielded questions from other designers about how they should be using Jira Software with their design team. I’ve also heard feedback from other ...
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG
You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs