Minecraft:Java Edition 12w49a

12w49a is the first Minecraft:snapshot for Minecraft:Java Edition 1.4.6, released on December 7, 2012,<ref>https://web.archive.org/web/20121209202854/http://www.mojang.com/2012/12/minecraft-snapshot-12w49a</ref> which added nether brick slabs, enchanted books and fireworks.

Additions

Blocks

width=32x32 Minecraft:Nether brick slabs

• New kind of Minecraft:slab.
• Made by using 3 Minecraft:nether bricks blocks in a horizontal line.
• Came from a suggestion at Minecraft:Minecon 2012.<ref>https://www.youtube.com/watch?v=YG9RNyRhIow&feature=youtu.be&t=1499</ref>

Items

width=32x32 Minecraft:Firework rocket

• New kind of shootable projectible.
  • Sound effects will come soon.
• Fireworks are customizable by crafting.

width=32x32 Minecraft:Firework star

• Used for crafting Minecraft:firework rockets.

width=32x32 Minecraft:Enchanted books

• Used for Minecraft:enchanting items.
  • In this snapshot due to a bug, any item could be given any enchantment in Survival mode using an Minecraft:anvil.

Changes

Blocks

General

• When holding Template:Ctrl, the player can place blocks and items (like Minecraft:redstone, Minecraft:repeaters, and Minecraft:levers) directly onto blocks such as Minecraft:crafting tables, Minecraft:furnaces, and Minecraft:dispensers.

Minecraft:Cobwebs

• Can be harvested utilizing Minecraft:Silk Touch shears.

Items

Minecraft:Shears

• Can now have the Minecraft:Silk Touch enchantment by using the Minecraft:anvil.

Mobs

Minecraft:Ghasts

• The blast radius of Minecraft:fireballs a specific ghast shoots can be customized with an editor.

Removals

General

Distance effects

• Minecraft:Falling block behavior has changed - they are no longer capable of infinitely producing dropped items at high coordinate values.