Java Edition 12w40a

Minecraft 12w40a

Edition	Java Edition
Release date	October 4, 2012
Type	Snapshot
Snapshot for	1.4.2
Downloads	Client (.json) Server (.exe)
Protocol version	44
Minimum Java version	Java SE 5
◄◄  1.3.2 1.4.2 1.4.4 ►► ◄  12w39b 12w40a 12w40b ►

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12w40a is the tenth snapshot for Java Edition 1.4.2, released on October 4, 2012.

Additions

World generation

Swamp huts

• New generated structure.
• Located in swamp biomes.
• Spawn witches.

General

NBT format

• Custom items can now be named using NBT data (intended for custom map makers).
  • Using the NBT, it is possible to add custom [String] Name to items, as well as a [NBT List / JSON Array] Lore list for that item.

Superflat

• Added preset "Redstone Ready" with 52 layers of sandstone, 3 layers of stone and 1 layer of bedrock.

Changes

Blocks

Beacons

• Texture has been altered.
• Beam texture has also been changed.

Fire

• Spreading has been nerfed to prevent infinitely spreading fires.

Items

Eye of ender

• Can now be used in superflat worlds, if the stronghold generation is enabled.

Mobs

Slimes

• Now spawn in swamp biomes at low light level.

Gameplay

Inventory

• Better management.
• The pick block action now works on blocks that are represented as items in the inventory (e.g.: redstone repeater, redstone dust, and tripwire).
• Pressing the 1-9 hotkeys while hovering over an item puts that item into the corresponding hotbar slot.
  • If there is already an item in the assigned hotbar slot, the hotbar item and the selected item swap position.
  • When in Creative inventory, a full stack of that item is transferred to that hotbar slot.
• In Creative mode, players can now shift-click items between the hotbar and the Survival inventory.
• The left-click action no longer opens doors, pulls levers, pushes buttons or opens trapdoors.
• When in Creative mode, pick block on an item picks up a stack of that item.

General

Superflat

• Configuration now allows the player to generate trees, strongholds etc.
• Now pumpkins, short grass, ferns, flowers, trees, mineshafts, dungeons, strongholds, lakes, desert wells, ravines and ores spawn on superflat maps.

Fixes

13 bugs fixed

• Fixed the wither's starting explosion not being disabled by the mobGriefing gamerule
• Fixed a few crash bugs related to world generation, map item expansion, and other things.
• Reverted lighting changes that had been introduced in snapshot 12w39a. This change corrected such bugs as:
  • The Nether being extremely CPU intensive.
  • Map generation taking extremely long.
• Fixed mob AI considering cobblestone walls as blocks of normal height.
• Fixed a few texture oddities with the witch.
• Fixed entities in water producing glitchy water sound.
• Gaining multiple levels at a time no longer plays the leveling up sound over itself as many times as leveled.
• Fixed the "A 64 bit Java installation is recommended for 'Far' render distance (you have 32 bit)" message being covered by the bottom 2 buttons.
• Fixed pets teleporting around randomly.
• Fixed being unable to place paintings larger than 1x2 and them popping off if they have been placed before.
• Fixed destroying blocks under the player with efficiency-enchanted gear.
• Fixed potion spawners crashing the game.