Is silver hull only new ship part?

there has to be more than 1 right

I believe there’s a new mortar… and probably more

no there’s also the willow sailcloth and the reinforced sailcloth

Light silver framing! And bronze coehorns… I guess?

These “new” ship parts were actually added in the Dark Sea update, they were just unobtainable due to their level requirements.
No new ship parts were added this update.

they’re still new then tho

theres a silver hull which is defense and stability, and theres a light silver hull which is speed

how many of these items are dark-sea chest exclusive?

none of the above

also this new hull, 1 more turning than archaic but also 2 less speed