Java Edition 12w37a

12w37a is the fifth snapshot released for 1.4.2.

Additions

 * Added "Re-Create" option to the World selection menu.
 * Allows you to create a new world as a copy of an existing save, defaulting all of the world options and the world seed to match the original.
 * Added pumpkin pie.
 * Superflat customization GUI:
 * Comes with 7 presets: Classic Flat, Tunnelers' Dream, Water World, Overworld, Snowy Kingdom, Bottomless Pit (Broken), and Desert.
 * Custom starts off with Classic Flat with three options: Add Layer, Edit Layer, Remove Layer. Adding and editing are not yet included.
 * You can customize superflat without add/edit layer option using the "seed" in the preset list.
 * Added  command to empty the inventory.

Changes

 * Tweaks to a couple of item sprites.
 * Bread, raw chicken, cooked chicken, raw beef, steak, raw porkchop, cooked porkchop, red apple, and Nether Star no longer have a dark outline.
 * Carrots changed to match their singular title.
 * Golden Carrot sprite changed to match new carrot sprite.
 * Heads are now correctly centered.
 * Baked potatoes do not have steam above the main texture anymore.
 * Leather armor now has a non-dyed layer.
 * Time of the redstone signal of the wooden/stone button extended from 9 to 12 redstone ticks
 * Tweaks to the Wither.
 * It creates an explosion around itself once it is done regenerating from spawning.
 * The Wither now will randomly shoot slow blue-colored versions of wither skull projectiles when idle.
 * Hostile mobs are now a little bit more fearless in hard difficulty.
 * Mobs will risk taking fall damage to reach the player, provided it will not be deadly to themselves.
 * Seems to be more Wither skeletons in Nether Fortresses.
 * Heads can now be customized to be player heads using an NBT tag
 * Fishing now gives the player XP.
 * Pigs are now able to jump when players ride on them.
 * Pigs will cease to move when ridden in water. (player weight or bug?)
 * 'Carrots' are now singularly 'Carrot'.

Fixes
? bugs fixed