User blog comment:Sharple/OlexCraft/@comment-3359524-20120730230421/@comment-3317329-20120730233636

Yup. We will have to restart the world in 1.3. Also your inventory will be erased because thats just how minecraft is. We could keep the map in 1.3 but the world wouldn't have emeralds, Fancy Sandstone villages, Fancy Jungle Temples and Fancy Pyramids :/