It's not supported any longer.
Device software.
Although changes to world times ect.
It's on the Garmin website.
Really depends what not supported actually means. If it means they won't fix anything more, then yes I wouldn't expect it to be supported when there is a newer model out. If it means they will still provide software updates, then it is supported, because my Nav V had a software update just last week, so understand what not supported means!