I was thinking that we would need to expand the map even more for jungles to generate. But im no sure, are gonna have another map reset?
I hope not EDIT: from reddit(that rhymed) Hey If you really want the jungles in your 1.1 worlds, you can trick the game to use the new generator by editing the level.dat file with a NBT editor. The game looks for the tag called "generatorName", and if it's "default" it will also check "generatorVersion" (if it's available). If the version is 0, it will replace the generator with "default_1_1" instead of "default" to switch to the old generator. To keep the new generator, change "generatorName" to "default" again and set "generatorVersion" to 1. Please note that this will mess up the whole biome randomizer, so it may start snowing in your desert if you're unlucky. // jeb_