Warcraft 3 patched to 1.22a

Joystiq writes: "Earlier this week, Blizzard released a patch for Warcraft 3, known to some of you as "the game before World of Warcraft" and the rest as "the client for playing Defense of the Ancients." Patch 1.22a provides balance changes for the units, fixes some technical issues and includes four new maps. You can update the game by either logging onto Battle.net"