Hello Terry,
It seems you are commenting on a response posted about a year ago, and I really don’t think it answers the question of when the goal posts were moved.
As I understand it - whenever the dictate changed- it was changed retrospectively, so the date doesn’t really matter.
What you do need is a copy of the service history print out for your car - should be available from a dealer, as opposed to the current ( non Audi ?) seller. This will confirm whether the belt assembly was changed in 2021 or not.
If it was, fine. If it wasn’t, then you have to read the responses on here and decide whether you are going to abide with the new recommendations ( and the potential pitfalls that go along with that), or stick with the better-safeguard old recommendations.
Perhaps you could let us know what decision you come to Terry.
Kind regards,
Gareth.