During chargen, one of the big changes to SR4 over earlier additions is that the stat increases are factored in but the stat reductions have been changed to stat cap reductions.
Earlier editions, all the metatypes got an overall 3 point bonus over humans, now it varies from 3 to 8, favouring trolls.
I know this has been discussed to death, certainly from the orks are better than humans perspective,but..
I just noticed that in Contacts and Adventures there is a table for metatypes that essentially uses the rules from earlier editions.