Beta 7 adds a few fixes from beta 6 which are: "Fixed the issue that caused MultiAbilities to spam the console if a player logged out while one was active.
Fixed the issue with WaterArms where the ability couldn't be used if the player was op." where beta 8 adds the cool new animation for waterspout which can be en(/dis)abled in config options, adds 2 and nerfs one config option for waterarms