I am not aware of a way of bulk changing issue links. Although there is an option that is similar. It is possible to link multiple issues to another issue at the same time. At the "normal" link window there is the possibility to search for issues.
There you get an option to make an advanced search using JQL. After searching with JQL you can select multiple issues to link.
Then press "Add", and now you can link them all to the original issue.
There is a limitation to this solution. You can only link 10 issues at a time, so a big bulk-operation can not be substituted.
A workaround to the limitation is to run a filter from issue navigator, export all issue keys to Excel, paste the issue keys in a note, exchange the newlines with spaces or tabs and then paste it into the issue field on the link-view.
Hope this helps and good luck with your bulk-problem!
Hello Community! We thoroughly enjoyed this just-for-fun conversation in the Jira Admin Group about what it's like to be a Jira Admin. For #JiraJuly, our talented designers created these graphics t...
Connect with like-minded Atlassian users at free events near you!Find an event
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no Community Events near you at the moment.Host an event
You're one step closer to meeting fellow Atlassian users at your local event. Learn more about Community Events