My cosmo only showed that CODI update is available about an hour ago. Starting update resulted in immediate failure, after which I restarted device, turned off notifications and switched to airplane mode (after downloading update). After that flashing resources worked from first attempt taking about half an hour, but flushing firmware image failed quickly, and kept failing for another three times before final success. Well, half success, because assistant application reported that CODI was not responding, and several resets did not help to convince it otherwise, although CODI itself appeared to be fully functional and showed new version V1.1.1.13. After closing and then unlocking device the assistant finally returned to its senses and showed green operational state and correct version.
Besides new version in settings I have not noticed any changes. I tried starting navigation in google maps, but there were nothing new on cover display during navigation, just usual notification.
Update 5 minutes later
My bad, was not careful enough: the maps notification has command "Show navigation", selecting which results in showing navigation instruction on CODI. So it works, although I am not sure I would use it over the actual map display shown on main screen even in locked state.