The course did indeed change in 2018 and there are no current plans to update the course again anytime soon. I do know that there is usually a transition period where the old course can be delivered for a couple of years, giving staff time to update resources. Someone talking about the course changing may simply have been delivering the old course for as long as they could.
In my last year of teaching I had started writing a complete CGD course in Serif PagePlus. I doubt more that half of it would be valid now but if anyone fancies taking the files and doing some editing please email me at home and I’ll share the files. email@example.com