Generating Sprint and Release History
You can display the history of work items within a sprint or release.
1. Click 
next to the Release field under a sprint or release in the Planner area.
next to the Release field under a sprint or release in the Planner area.2. Select the Show Sprint History menu item.
The sprint and release history of the items will now be displayed.
In this example, some of the work items have been transferred from Design and implementation sprint 1 to Design and implementation sprint 2.