Sorry if this is a question that has been answered many times but I searched the forums and all I can find is people saying call the dealer. Is there a list of the latest software versions for each vehicle?

I have a 2013 A7 and it has:

HN+R_US_AU_P0609

If I am understanding correctly this is the software that was shipped with the vehicle and it has never been updated. I believe updates start with a K?