The AWB fix is just firmware that the D600 would be able to get.
So essentially, this is a camera with a new shutter. I think this is a strange move. They should just have fixed up D600’s for any users with problems, and replaced the shutter mechanism in the forthcoming D600 models. Like… Most other responsible manufacturers when hardware defects crop up.
It happens. It happened with the Fujifilm X100, but newly developed cameras don’t exhibit the stuck aperture blade problem, and Fujifilm are taking such cameras out of warranty when it comes to the problem. They didn’t make an X110 with fixed aperture blades, lol.
Unsurprisingly, the D610 is now introduced for about $100 more than the D600 is currently selling over here. Because hey, it’s a fresh, new camera. Sneaky, Nikon.

Started out doing photography at the age of 6 using an uncle's old 1940 kodak brownie box camera. At 15 years of age, I decided to buy my very own 1975 Praktica SLR camera. I now shoot with a Nikon D850. I do unpaid TFP and commercial paid work.