Welcome to Atlassian Community!
Unfortunately, it is not possible to keep closed Sprints in the backlog of boards. The reasons to prevent this kind of display is that, eventually, it would cause performance issues considering the number of issues and data to be loaded in a single screen.
That being said, you can easily display your closed Sprints together with all the issues and relevant information by simply navigating to your Sprint Report:
Let me know if you still have any questions.
When to use CSV importer When managing your processes in Jira, there are many occasions where you need to create a lot of tasks. Creating them one by one will cost you a lot of time and effort and i...
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