What's changed(Basic overview please)

Hello, I haven't played maple at all since around December 2011 so I was just wondering if someone could bring me up to speed on new bosses/training areas and such. My current character is a 16x Paladin, so if anyone can point me in the right direction that'd be great.

Thanks(Apologies if I posted this in the wrong section, I've never used southperry all that much)