Have you looked at this site?The issue for me is that Jaguar have reneged on a basic principle for any manufacturer that its products should have a reasonable life cycle. They also have done this in a very underhand way without any discussion with or even the courtesy of informing owners who are unfortunate enough to have the InControl Touch map system. I probably will have to install a TomTom or similar but my preference is for a working integrated system, after all, that's what I thought I had bought.
Which you can find via nng ( Global Infotainment Technologies )
I have no clue as to whether they are the official supplier to Jaguar or not but there is no mention of updates having been stopped.