Not a big one but I just tested and dropping water on lava doesnt have the steam particles effect anymore. In version 1.2.5 you had this effect in single player but not in multiplayer. Now because of the code merge in 1.3 the effect is not there in single player and multiplayer too.
...but that's just like, my opinion, man.
Anyone can confirm ?
...but that's just like, my opinion, man.