Since I apparently got a new version of the Dragon,
See this thread: https://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&t=79959
that nobody seems to have yet, I put in a support question to Atmel to if they could shed some light on the differences/improvements for this new revision and how to order this new version.
Here is there response:
The rev D Dragon has an improved power supply, as well as protection
clamp diode on the USB connector. We do not have mechnaism to specify the revison in the ordering code, but all new units are of rev D and have this changes.
Atmel Technical Support Team