Gramps 6.0 and gedcom 7

[Woody]

What is read in during the gedcom7 import of Gramps 6?
The announcement for Gramps 6 states:

@Nick-Hall

New Gedcom 7.0 event roles: “Father”, “Mother”, “Parent”, “Child”, “Multiple”, “Friend”, “Neighbour” and “Officiator”.

Is there anything I can read somewhere about what works and what doesn’t yet?