1.7.0 release notes (#5983)
1.7.0 release notes (#5983)

No additional changes, so it's a very short release note.
foursquare/pants,foursquare/pants,foursquare/pants,foursquare/pants,foursquare/pants,foursquare/pants,foursquare/pants,foursquare/pants,foursquare/pants