1) They have a new forum now with english and portuguese language well separated. It's much more organized and easy to browse.
2) New FAQ
3) I'm not sure but the annouce, pre and pt irc channels had been added since the last time.
4) Now you can see the pretimes.
5) The request system is new, separated from the forum and more organized.
6) The look of the browsing categories and infos had a significant improvement in my opinion and stupid things like you can't quote others comments has been fixed.
Of course it still have lack of people but they have changed it to a real tracker today and I think there's more improvements to come. If they start to send mass emails to the users registered and making more publicity when they finish to change things maybe we can finaly have a good portuguese tracker. Good speeds and pres they already have. But this time I'm gonna wait to see.