In the UK software updates should be done by your dealer. There is no official source of software for download. If you DIY and brick the system it will not be covered by Kia. The updates themselves are free and are released about every 12 months. The latest version has been release quite recently and has map version EU_13. The only catch is that the dealers are free to charge what they like for installing it. Kia recommend a charge of £40, my dealer charges £25 some have been reported as doing it for free, especially if the car is in for some other work. My car was delivered to the dealer with the “old” software but they updated it for me for free. Have a word with your dealer, especially if your car was delivered recently.