Yup, most of Epic’s features seem designed around their tech demos and games. Paragon got us capsule shadows and some optimization, their car demo got a lot improvements for reflections and normals, Bullet Train brought VR features and VR optimization, Kite demo brought landscape and auto generation features, Fortnite got us distancefields, not sure if anything was specifically UT related, maybe some of the UI stuff. I’m not expecting a lot of open world improvements or day and night cycle features until Epic makes games that use them. We will get some features from pet projects by individual staff members, though. They have their Epic Fridays where they can work on whatever they want.
But also there’s been community contributions to the engine, a pull request from github finally got Epic to implement a sync workflow for normal maps with Mikk TSpace.
Also, Lionhead got us LPV from Fable.