Releases
A release is a group of items that are developed together and mapped to a specific completion date.
To see all the releases listed for this project, select Releases at the top of the left panel. Select a specific release to see the items assigned to it.
If you include items in a release, you are assigning them to that release. If the release field is visible, you can use List View to see the name of the release where an item is assigned.