I did the upgrade to 4.02 and I have two questions.
1) My functions.php file had been altered to allow for Friendly URL's in the pagination when sorting by category, so I did not replace that file. Will that be a problem.
2) Everything seems to be working fine except for when I go to add a new article, when I save it, I am bought back to my article (instead of the list of articles) and at the top of the article is a red x with the words "no dice, homeslice" and the article isn't saved. Not sure why that is. (Hopefully this is not related to question #1 as I don't know how to re-incorporate the customized code into a new file)