Restoring a Retrospective
You can restore a Retrospective in a Kanban board that was previously archived via more actions options in the board. To restore a retrospective board, click on on more actions (…) on top-right corner of the board.
By clicking on Restore this retro board, the Retrospective board will be restored. Once the retrospective board is Restored then the Archived tag disappear next to the Retrospective title. The Retrospective boards will be listed back in the Retrospective drop-down list.
Note: Only the Jira admins are allowed to archive/restore a retrospective board.