This is the same client patch as v5.80 but does not include extra files for the menu. Install this version if you want a bare-bones patch installation or if you do not have an english copy of the game.
This patch is required in order to play multiplayer after May 31, 2014. Please install the 'lite' version if you have a non-english version of the game. This patch includes numerous bug fixes to the game and new features.