We're glad to announce that Patch 6990 will be released on December 5th.
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 Patch 6990
Guild Gate and Guild Pole Optimization
The HP of Guild Gate and Guild Pole will be doubled, and the defense of Guild Pole will be increased.