Java Edition 12w21a

12w21a is the sixth snapshot released for Java Edition 1.3.1.

Blocks

 * Emerald Ore JE1.png Emerald ore
 * Drops 1 emerald when mined.
 * Generates in blobs of up to 10 blocks.


 * Ender Chest JE1 BE1.png Ender chest
 * Crafted with 8 obsidian and 1 eye of ender.
 * All ender chests in a world have the same contents, if those contents change it will affect the contents of all other ender chests.
 * On multiplayer, the ender chest's contents will be the same for all players on a server.


 * Sandstone Stairs JE1.png Sandstone stairs
 * Have the same function and recipe as other stairs, but made of sandstone.

Items

 * Emerald JE1 BE1.png Emerald
 * Dropped when mining an Emerald ore block.
 * Used in villager trading.


 * Enchanted Golden Apple JE1 BE1.gifnted golden apple
 * A second golden apple made with blocks of gold.
 * After being consumed, the player receives 30-second regeneration IV, plus resistance and fire resistance for 5 minutes.

World generation

 * Desert temples
 * New generated structure in desert biomes that resemble pyramids.
 * Have a TNT trap and loot chests inside.


 * Desert villages
 * Villages that generate in desert biomes will now be made of sandstone rather than wood and cobblestone.

Gameplay

 * Trading
 * Villagers will buy or sell the player emeralds in exchange for certain items.
 * Trade with villagers by right-clicking on them, opening up a GUI with one buying slot and one selling slot.

Command format

 * Commands
 * Displays the current world seed.
 * Displays the current world seed.

Blocks

 * Dispensers
 * Dispensers will eject water and lava source blocks from buckets.
 * Will also take water and lava source blocks if there is an empty bucket inside.


 * Gravel
 * Changed gravel texture.


 * Locked chest
 * Removed old chest texture, causing locked chests to appear as the purple default block.

Items

 * Buckets
 * Are now stackable.

Mobs

 * Passive mobs
 * Can be easily pushed around by simply walking, most likely intended to help the player navigate through animal farms more easily.

Non-mob entities

 * Boats
 * Boats will now pass through lily pads without breaking the boat; the lilypad drops as an item instead.


 * Minecarts
 * While sitting inside of a minecart pushing the directional keys will make it move the direction you are pressing, this will only work while the minecart is sitting on rails.

Gameplay

 * Creative
 * Added snow to the creative inventory.


 * Singleplayer
 * Removed Server Jar dependency in singleplayer.


 * Sky
 * Stars are more realistic.
 * They are now slightly smaller and slightly brighter.

General

 * Options
 * Improved Options menu.


 * Debug screen
 * The F3 menu no longer has the frame time graph.

Trivia

 * In this version, when loading a single player world, one needs to put into  manually to continue loading.