managed to download the latest updates and apply them yesterday, piece of cake, unzip files to usb stick plug into car took 35mins to do the update . out of curiosity i had a look at the files and the majority of them are dated september 2016, the nerd in me started opening files with a hex editor and i found the string in one file "Q4 2016" even though now the nav unit has 2017/2018 listed in the version number.