differences between 2008 and 2013 grizz 700?

So I have a 2008 grizz 700 fi eps. I have been offered a 2013 model at a fair price. My question is what upgrades/improvements have been made since 2008?
My 08 has less miles on the clock than the 13 but a newer one might be worth looking at if there’s significant improvements.

Anyone out there got the knowledge on this?