Epic is an entity above Feature. Quite often you want to have one more level of hierarchy for requirements, and Epic can be handy:
For example, you have large module and several features inside this module. Or you have large feature and break it down to smaller, like Minimal Viable Feature and Minimal Marketable Feature.
More interesting view is a full drill-down from Epics to User Stories. Here is a setup for that case:
As a result, you can see full backlog hierarchy:
Epic details view is quite familiar. It has usual properties and contains a list of related Features as well as Epic progress tracking information. So now you can track progress on a higher level:
Epic is quite similar to Feature entity and you can define terminology for Epic, create custom fields, set permissions and customize its workflow:
You can export and import Epics, print Epics, access them via REST API, create Timelines with Epics, etc.
Epics Improvements in v3.7.4
'Convert' action for Epics
Now you can convert an Epic to a Feature, User Story or Request. You can also convert a Feature, User Story or Request to an Epic.
In addition to converting, we've also added the possibility to assign Epics to Releases and display the History of an Epic.