I don't know If I can remember them all, but I will try.
13 bar concave, and beater grate, Gen II (rather than 14 bar in a 00 series)
"sun dial" chaffer and sieve adjustment
digital readout for concave position
shoe inspection lights
air flow feederhouse
larger feederhouse drive belt
Some people put in the new concave and say the combine has "10 series updates"
Never buy a 00 series that has had 10 series update, they change the tach so the hours go back to zero. You see many of them advertised as 2000 hours or so but have had the tach changed. Sometimes they write the hours it had before on the back of the new tach but you can never be sure of the true hours.