Having just bought my 2018 X Trail I found that the sat nav maps were a 2015 version. I want to update but have discovered that the last map update that Nissan/HERE are going to do for sd card updates is 2021. From 2022 the updates are done via wifi/smart phone.

I find this ridiculous as they are leaving pre 2022 owners with out of date maps and no way of updating them. They are still selling the sd cards and are charging £109 for maps which are 3 years out of date! 

Does anyone know of any way of updating  the maps to 2023/2024?

It looks like the only thing we can do is buy a stand alone sat nav and get free lifetime updates. 

Having just purchased 2016reg t32 xtrail went looking for updated sat nav ,found this "Sat nav world" online put in your reg and it shows availability of SD card and price

Version 7, which I believe is the latest version, SD cards available on E Bay  - but make sure you get the correct one for your car