Minecraft update 0.9.0 confusing?
I've heard that the new minecraft update 0.9.0 is coming tommorow ( July 10th ) and I was wondering what will happen to 0.8.1 cause i love all my worlds on 0.8.1 will it delete everything after I get the update and start from 0? Its cause I got minecraft on 2013 and i heard it was after the update i got it. So can i save it or i can't do anything about it?