Yes please someone have some helpful answers to this question they asked.. BC the same thing happened to my son.. he has the Xbox 360 edition and he went to play mine craft and it asked him to update .. so he did.. ( when u see UPDATE u think newer better options... ) Not erase your map and start u over.. he has been playing mine craft since he got it Christmas 2014.. He is upset and a little discouraged BC he worked really hard and now all the hard work is gone.. and it just keeps him from wanting to put his all in it like before... So my question is, is there a way that you can undo an update after you update and bring back his old maps... Thanks!!!!
Go to your minecraft save files in your hard drive to see if they are still there. If not, then I think it's gone. I don't know of any way of undoing an update once it's done, and even if there was a way to do it, there's no solid guarantee that the saves would be there.