I administer a host of different 2003 servers, and need to make a transition to 2012. I have implemented most everything there is on 2003.
I need to transition to 2012, and I there is quite a bunch of new features. I would appreciate if someone could post differences with explanations, so it would make a transition easier.
There is probably not much changed under the hood, but they did reshuffle a lot of stuff.