Xmega A3 vs D3

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Hi, I have a board made for a XMEGA A3 chip, now I see that there is D3 chip which is pin compatible with A3 and I don't use any functions that only exist in A3 (like crypto engine, DMA). Same goes for A4 and D4.

Can I just swap to D3? In AVR Studio, the device name for A3 is AVRXMEGA whil the name for D3 is ATXMEGA. Why there is a naming difference between the two?