nomex/carbon/epoxy was used on colour 7 at least 2 decades ago.. The only difference is the epoxy.. Back then it required an autoclave these days vac bagging and a warm box is all that is needed.. I believe kevlar was used in 18teens before carbon if not was around the same time..
what else? foam? not sure apart from minor improvements in composition has faom changed..

I cant think of any hull technology that isnt 70s.. This is evident in the total lack of decrease in weight with respect to boats since the drafting of the mosquitos and tiapans..
The only improvment is perhaps the use of these technologies, hull design, foils and rig... But even in rig we are behind the C class development work of the 80s when it comes to efficiency...