Dogs Rule on 07 May 2008
After reading the Playstation forum, it would appear that it does not fix (at least not all) freezing issues.
http://boardsus.playstation.com/playstation/board/message?board.id=gta&thread.id=426977&view=by_date_ascending&page=1
I think I'll unplug my Ethernet cord before trying to play the game, since some people have reported freezing that did not exist before downloading the update.
