On Thursday 11 July, the Cornwall by Kernow (First Bus) Twitter feed announced that new timetables would take effect from 14 July. See screenshot below. A link is provided to the newly published composite Cornwall Bus Timetable. Note that the timetable book says “from 24th July” but as this is a Wednesday and, usually, timetable changes take effect from the beginning of a week on a Sunday rather than in the middle of the week, I can only assume that it is a typo.
There is nothing on the First Bus website, nor the Go Cornwall Bus website, nor the Transport for Cornwall website about the timetable changes. I think that the changes are probably minimal or have been previously announced but I will check through the new publication over the next couple of days and highlight any significant changes as soon as I can.