In 2017 the new feature that railings can be hosted to walls and floors is getting all the attention. However there have been some subtle things that have been added. One thing that myself and Tim Waldock have been requesting is to see the termination families in plan views. This wish has been granted, or quirk has been fixed, depending on how you look at it.
The first image below shows a family in Revit 2016 R2 the second image is Revit 2017