The Warcraft III patch v1.20e has been released to address an exploit that could happen in multiplayer games and also added a minor map change.
For the easiest patching process it is recommended that you connect to Battle.net. This can be done by starting the game and clicking on the Battle.net button.
If you have The Frozen Throne expansion installed you only need to download and install The Frozen Throne patch.
Fixed an exploit that could happen in multiplayer games.
Added some trees to high ground above Red start location to prevent a siege unit attack imbalance.
Replaced Mercenary Camp type from Village to Lordaeron Summer.