The patch fixes some issues, but they already announced a second patch is coming. (It was announced before this one went live.) I think PC already got the second patch. Some of the freezing issues are fixed but not all, you can still get random freezing.
here is the complete list of fixes http://community.darksiders.com/go/thread/view/138
Oh and hope you enjoy the game, the story really expands on the darksiders universe.
Thanks for the info.