We're glad to announce that Mac - 1666 will be released, following no routine server maintenance on January 7th, 2016.
Note: You must be sure that the client is completely closed before patching, otherwise the patch may not be installed correctly and you won’t be able to login the game.
Highlights of Mac - 1666
Anti-bot System Update
Anti-bot system will be updated in order to provide you with fairer gaming atmosphere.