So I just upgraded my previously 1.3.2 R-2.0 Minecraft server to 1.4.2. R-0.2 and I was wondering is there any possible way to make the world 1.4.2? I mean the world I have currently was generated in 1.3.2 so there are no Witch Huts or other new stuff naturally spawning there. Please help me
Any chunks that were created previously won't get the new stuff. Either delete chunks (or the whole map), or explore more.
Either delete your whole map and restart it or delete chunks and regenerate them or go out far in the map and explore chunks that have yet to be explored since as mbaxter said 1.4.2 stuff won't generate on chunks that have already been generated in 1.3.2