Since this plugin is listed as unsupported on Marketplace, I think it's safe to say that there do not appear to be any plans to update this plugin for later versions of Jira. There is a feature request to officially support this plugin at https://jira.atlassian.com/browse/JRASERVER-62759
That said the code for this plugin is available at https://bitbucket.org/atlassianlabs/jira-remote-copy-plugin and it does appear to be licensed under the Apache 2 license as free to modify. So if another developer is interested in updating this plugin for later versions of Jira they could certainly do so.
Badges are a great way to show off community activity, whether you’re a newbie or a Champion.Learn more
@Rachel Wright (Jira Genie), @Billy Poggi (AUG NOVA, DC), and @Dana Jansen (Confluence Queen) are just some of the folks that lead one of the world's most active Atlassian User Group (AUG)....
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