As E. Weddington wrote:
I would have to agree here. There may be some who never upgrade to
version 2.0 of the protocol. Perhaps having two programmer
specifications would be desirable.
If a single programmer module can handle both protocols, why have two
of them? At least, it's my understanding that Atmel's avrprog.exe can
also handle both protocol versions (only the older version of
avrprog.exe cannot handle the new firmware, so you have no easy chance
to `downgrade' that way by installing an old AVR Studio version).