Nav V Firmware

Googling Navigator V firmware implies there is v3.30 out, as of July 2016. However, when attempting to update via Garmin Express, it says I am up to date on v3.10. Weird. So confused as to which is correct. Any advice?

See:
https://www.google.co.uk/search?q=navigator+v+firmware+upgrade&gws_rd=ssl


Ta !

My software is already 3.30. Not sure when it updated.