I had a software update today and had to pay for the privilege, even though I had paid for Extended Warranty. The garage told me software wasn't covered, I'm going to follow that up and see.
Good news all seems well, so far at least. Software date is 16/06/2017 now so it's obvious they don't complete any updates when the car goes for a service. I bought it in March 2017 and it's been in every year since.
Previous Citroens, GS Hatch, GS Estate, DS Special, GSA Hatch, BX, Xantia & C4 1.6 Petrol 05 SX Hatchback. Now DS4 Prestige 210.(2016)