Java Edition 12w49a

12w49a is the first snapshot released for 1.4.6.

Additions

 * Added Firework Rocket (sound effects will come soon)
 * Added Firework Star
 * Fireworks are customizable by crafting
 * Added Enchanted Books for enchanting items
 * Added Nether Brick Slabs

Changes

 * When holding sneak, the player can place blocks and items (like redstone, repeaters, and levers) directly onto blocks such as crafting tables, furnaces, and dispensers.
 * The blast radius of fireballs a specific Ghast shoots can be customized with an editor

Fixes
16 bugs fixed


 * Fixed 1-9 clicking an item out of a furnace not giving XP
 * Fixed mobs reverting farmland to dirt when mob griefing gamerule is set to false
 * Fixed setting an Enderman on fire with lava or flint and steel not making it teleport away
 * Fixed animals on fire not fleeing
 * Fixed boats being placed in the wrong direction
 * Fixed Endermen not being able to dodge flaming arrows
 * Fixed the game auto-selecting the first item on the toolbar when entering the Nether
 * Fixed leaves having the incorrect tooltip
 * Fixed drowning in creative mode
 * Fixed the  command not enchanting with ID 0 (Protection)
 * Fixed not hearing the XP sound every 5 levels
 * Fixed minecarts and falling entities jittering
 * Fixed passive mob spawn eggs not being consumed
 * Fixed Endermen not opening their mouths when being attacked by other mobs
 * Fixed F3+B hitboxes rendering invisibility potions
 * Fixed the Wither sometimes destroying its own star