How to retrieve deleted epic links

[Corinne Savage]

Is there a way to retrieve a deleted epic link?

One of our epic links has been deleted and it had a lot of issues assigned to it. Now these issue do not have an epic link. Is it possible to get the epic link back and have it relinked to all it's issues again?

[PJ Wysota · Accepted solution]

The answer is simple, but execution might be a bit though:

You need to upgrade source instance JIRA. 

https://confluence.atlassian.com/adminjiraserver/upgrading-jira-applications-938846936.html

It might be harsh, especially if version difference between source and target instances is high (once I had to do migration from 4.X to 7.X - it was going through multiple upgrades of source).

The reason to do so are changes in data structures. Ans as actually with minor version diff JIRA would allow You to import data file in Your case I would advise to do so.

There are some Atlassian docs on Upgrades in particular, e.g.

https://confluence.atlassian.com/ug/jira-software-upgrade-matrix-933696761.html
https://confluence.atlassian.com/jirasoftware/jira-software-release-notes-776821069.html

[kunti pawar]

I am using Evaluation Jira is it possible to update 

[PJ Wysota]

Untill your license is valid it should be. However with Eval license expired - I  truly don't know. 

However - if backup-restore is not an option....

...then I would say only manual migration (re-doing all configs manually + migrating one project after another via csv files). It is time consuming, but still can be done.