Unlock trees on Felica/Caeda/Raven

So since they have their new weapons I was wondering if they require their previous + weapons, Silver dagger+, Armorslayer+ and Brave Axe+ to be unlocked to learn the new weapons, or just the regular version. I’d test it myself since I’m planning on building them, but I don’t have the feathers and want to know if I should be grinding them up for SP or not.