felicity items

I previously had the old dress felicity came in and then those accessories and then her purple dress. If I had those three things do I need to get the new accessories or am I fine? Also is old riding habit and the new one the same. Any other differences in Felicity's items noted?

The necklace is different in the new accessories, as is the cap.

Her riding outfits are "the same" except the new one is a much thinner material.