Blizzard released a new patch yesterday, patch 1.93. To most players the patch contains some minor changes, however if you are playing WoW on one of the new intel based iMacs the patch is huge! With this latest patch WoW is officially a universal binary for Mac. What does this mean? It means it natively supports the new intel dual core chips, for a huge speed increase in the game.

Mac

*Added native support for Intel-powered Macs such as the iMac (Core Duo) and MacBook Pro. World of Warcraft is now a Universal Application. Be advised that the minimum supported MacOS X version has been changed to 10.3.9; World of Warcraft version 1.9.3 and later will not launch on older revisions of MacOS X.

You can read all about the other changes here.