2007 Jamis Aurora and the Tiagra group
I've read that Shimano updgraded the Tiagra group in 2007. My question is, did the 2007 Jamis Aurora get this new Tiagra?
nope. 2008 only
The Deore SGS on the '07 is black. It's silver on the '08.
That's hard to tell without looking at the bike. My guess is, and it's only a guess, some Auroras did and some didn't. I've seen components that are 2 years old on a *new* bike...and some models get the latest and greatest. It depends on what's laying around when the bike is assembled.
Hard to tell by appearances when componentry is latest and greatest...except for some color changes and a keen eye.