A Release is the result of a series of Sprints and last, in general, for a few months. During a products lifetime, many releases are rolled out.

A release has the following attibutes:

• goal
• type, either "fixed" or "variable"(default). If "fixed", a date is provided.
• length, in days , for sprints
• forecasted number of sprints

Release planning is a level of project planning: it shows at a high level, the list of items to be developed during this release' sprints.