Spotify Release Radar
This is such a neat feature. To me, it's sort of an extension of Spotify's Discover Weekly feature -- except the main difference is that the Release Radar is populated by new releases. It's a great way to discover truly new music sorted by release date.
Used together, Spotify's Discover Weekly and Release Radar are two amazing features that I think will keep users coming back to use Spotify for a while. Try it out.