after all wound barrels are new
The first Beech Starship (1986) had a carbon fibre wound over a mandrel fuselage, as did the Premier IA (1998) and Hawker 4000 (2001), so the technology has been around for a while, if not to the scale of the 787. A bit of an article.
https://www.intechopen.com/books/aer...ng-perspective