the 6.0 update doesn't support the 986 at this time, that support will be added back in later.
And no big enhancements will affect the 986...they seem mostly for the 987/997 world. You would be able to program DRL and seatbely lights can be turned off if you have installed racing seats...minor things like that. See the version history page...
http://www.durametric.com/versionhistory.aspx