NCsoft Korea just updated Blade & Soul's weapon and skill mechanics. According to Steparu.com, it's a game-changing patch because it introduces weapon upgrades and version 2.0 of the skill system. The latter includes special sub-menus and enhancement options for each skill, and Steparu speculates that the patch could be NCsoft's response to players who are looking for something to keep them busy at endgame.
The 2.0 patch also features crafting tweaks, a simplified repair system, and new belt and bracelet slots. You can see plenty of 2.0 screenshots at the source link below, as well as a gameplay video after the break.