There are indeed changes…
^ links to doubleofive’s superb ‘Star Wars Visual Comparisons’ twitter page
Edit - a link to the changed Greedo scene on a larger sized screen:-
Well we got a new contender! Greedo’s LAST WORD!
Double Edit - a link to a couple of ‘frame comparison’ scenes highlighting the colour changes:-
Han Solo IRL said:
Quick comparison with what I have on my hdd: