My recollection is that the changes in sailcloth have gone into effect three years after they were inacted. This was to allow those of us who bought new sails this year to get at least some use out of them before they become obsolete.
In any event even though it seems a fait acompli, I remain opposed to this change. Adding to the cost of racing these boats is not the way to build one design fleets, particlarly with the state of the economy.
Tom Watson