Java Edition 1.2.1/Development versions

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This is a list of Java Edition 1.2.1 development versions.

12w03a

12w03a is the first snapshot for Java Edition 1.2.1, released on January 19, 2012,[1] which adds jungle biomes and jungle trees.

Additions

Blocks

Jungle leaves
  • Generates in jungle trees.
Jungle log
  • Slightly-mossy brown textured with horizontal bark.
  • Generates in jungle trees.

World generation

Biomes
  • Added jungle biome.
  • Thick canopy with jungle trees, vines, fern, and brightly-colored grass.

Changes

Blocks

Ladders
  • Regained collision box.
Vines
  • Are now climbable if the player was pushed into a solid block while next to them.

Items

Spawn eggs
  • Dispensers can spawn mobs when dispensing spawn eggs.
  • Spawn eggs are now stackable to 64.

Mobs

Wolves
Zombies
  • Have new path-finding AI.

General

Languages
  • Updated language files.

12w04a

12w04a is the second snapshot for Java Edition 1.2.1, released on January 26, 2012, [2] which adds ocelots, jungle saplings, bottles o' enchanting, and fire charges.

Additions

Blocks

Jungle sapling
  • Can be grown into the new jungle trees.
  • Growing a 4×4 square of jungle saplings to create large jungle trees.

Items

Bottle o' enchanting
  • Can be thrown similarly to splash potions and spawns experience orbs upon breaking.
Fire charge
  • Can be shot out of dispensers to launch fireballs and can be placed to create fire.
Ocelot spawn egg

Mobs

Ocelots
  • New jungle-specific mob that can be tamed with raw fish.
  • Tamed ocelots will scare off creepers, can be told to sit, and will teleport to their owner similarly to wolves.

World generation

Desert wells
  • Added desert wells, which are newly generated structures which are exclusive to desert biomes.

Changes

Blocks

Dispensers
  • Changed texture.
Oak Saplings
  • Changed texture to Oak Sapling Revision 4.png.
Vines
  • Players are slowed when going through vines due to their nature of being a collisionless ladder.

Items

Spawn Eggs
  • Eggs set to spawn arbitrary data IDs (such as giants, ender dragons, ender crystals) no longer spawn those entities.
  • Now only spawn those mobs also available in the creative inventory.

Mobs

General
  • Mobs have a new AI with new and improved behaviors.
  • Skeletons and zombies burning from sunlight will flee to darkness or jump in water.
  • Mobs no longer attempt to jump over wooden fences.

General

Languages
  • Updated language files.

12w05a

12w05a is the third snapshot for Java Edition 1.2.1, released on February 2, 2012,[3] which makes minor changes to mobs.

Changes

Blocks

Dead bushes
  • Can be obtained by breaking them using Shears

Mobs

Creepers
  • Now have new AI: they now stalk the player.
Ghasts
  • Updated hit box to incorporate their whole body, prior to this ghasts could only be injured by hitting their tentacles and lower body.
Ocelots
  • Are now easier to tame, and takes ocelots can now be told to sit.
Villagers
  • Will try to detect village houses and live in them.

World generation

Abandoned mineshafts
  • Now bridge over ravines.

General

Enchanting
Languages
  • Updated language files.
Sounds
  • Lava sounds now function.

Reupload

12w05a was reuploaded later on February 2, 2012, to fix a bug where the game would crash when right-clicking a sitting cat empty-handed, as well as fixing racist translation griefings.[4][dead link]

12w05b

12w05b is the fourth snapshot for Java Edition 1.2.1,[5] released on February 3, 2012, which makes small changes to mob AI and fixes a few bugs.

Changes

Mobs

Creepers
  • Have a slightly improved AI.
  • Will now run away from tamed cats and ocelots.
Villagers
  • Villagers now have the ability to open and close doors.

General

Death screen
  • Death screen has a slight delay before buttons become active, to avoid accidentally clicking buttons when killed.

Fixes

2 bugs fixed
  • Fixed shift-clicking the result from crafting only giving half the items and consuming all leftover materials.
  • Fixed cats being unable to sit when right-clicked with an empty hand.

12w06a

12w06a is the fifth snapshot for Java Edition 1.2.1, released on February 9, 2012,[6] which added new sounds and modified block placement rules and mob AI.

Additions

General

Sounds
  • Cats now meow, cry, howl, purr and hiss.
  • Doors now make banging sounds when zombies hit them.

Changes

Blocks

Doors
  • Doors have been changed to properly detect if they are open or closed. Double doors in existing are not affected.
  • Placing two pressure plates directly in front of doors and stepping on them will open them correctly.
    • When stepping on a single pressure plate only the door on that side will open.
    • When stepping on both pressure plates both doors will open.
Redstone

Mobs

General
  • Added rare item drops for mobs.
  • Improved movement when mobs are in water.
  • Most mobs now move slower.
  • When a player is targeted by a hostile mob, it will continue to track the player despite being attacked by other mobs.
Cave spiders
  • Now swim extremely fast with the water stream towards the player, but seem to be almost not moving against the water stream
Skeletons
  • Now have a rare chance to drop a bow, which may be enchanted.
Snow golems
  • Now takes damage from rain and water.
Villagers
  • AI has been improved.
  • Now socialize with each other and other passive mobs.
  • Will now go inside shelter when it is raining.
  • Will now run away from zombies.
Zombies
Zombie pigmen

General

Debug keys
  • Pressing F1 to hide the HUD additionally disables hitbox outlines on blocks and the block breaking animation.

Fixes

5 bugs fixed

12w07a

12w07a is the sixth snapshot for Java Edition 1.2.1, released on February 15, 2012,[7] which adds redstone lamps and updates the world type from Region to Anvil, which increased the height limit from 128 to 256.

Additions

Blocks

Redstone Lamp

General

World file format
  • Worlds now use the new Anvil file format instead of Region
    • World files now save with .mca suffixes instead of .mcr.
    • World height is now 256 blocks high instead of 128 blocks.
    • Up to 4096 block IDs can now be used.
Maltese language
  • Re-added after being removed in 12w01a.

Changes

Items

Hoe
  • No longer tills dirt or grass blocks when they have another block on top of them.

Mobs

Drops
  • Decreased chance for the rare mob drops.
AI
  • All animals now use the new AI system.
  • Animals can now move their heads when walking.
  • Baby animals will now follow wheat.

World generation

Villages
  • Villagers will now repopulate villages based on how many houses there are available.
  • The player may add houses to villages, provided they are enclosed with a roof and wooden door.
  • Includes zombie sieges.[more information needed]

General

Multiplayer
  • Multiplayer light calculations no longer cause affected blocks to be transmitted to clients; instead the clients will recalculate the light on their own.
    • This means that chunk errors cannot be fixed by updating blocks anymore.

Fixes

3 bugs fixed

12w07b

12w07b is the seventh snapshot for Java Edition 1.2.1, released on February 15, 2012[8] which fixes bugs in 12w07a.

Fixes

3 bugs fixed
  • Fixed blocks being destroyed when a block on fire is hit.
  • Fixed crash when mobs were spawned above y=255.
  • Fixed sheep animation in multiplayer.

12w08a

12w08a is the eighth and the final snapshot for Java Edition 1.2.1, released on February 23, 2012,[9] which adds the iron golem and debug camera controls.

Additions

Mobs

Iron golems
  • New utility mob.
  • Occasionally spawns in large villages as a defense.
  • Can also be spawned by arranging 4 iron blocks and a pumpkin.

General

Controls
  • Added camera controls.
    • These were accidentally added. Jeb noted them as "deadmau5 camera" controls and would likely be removed again in an upcoming snapshot.[10][11]
    • Pressing F6 causes the player to get "stuck" to the camera until F6 is pressed again. This allows players to appear to phase into blocks.
    • Pressing F9 causes the camera to freeze in its position, allowing to see the player model rotating in third person view.
    • Scrolling the mouse wheel (which also scrolls the inventory) rotates the forward, left, right, and back directions.
    • Pressing Y, H, U, O, I, K, J, L, N and M change the camera positioning in a variety of ways. While pressing two functionally connected keys at the same time the camera may be reset (example: Y + H) will revert that view back to normal, but U + O will not).

Changes

Blocks

Redstone torches
  • Can now be placed on the top of glass.
Stairs
  • Will now be placed upside-down when placed against the bottom of a block.

World generation

General
  • Lava ponds and flat stone areas now generate on the surface more frequently.

General

Languages
  • Removed some Canadian English stereotypes.

Fixes

1 bug fixed

1.2

1.2 is a preview version[12] for Java Edition 1.2.1.

Additions

Blocks

Chiseled stone bricks
  • New type of stone bricks.
  • Creative-exclusive block.
Sandstone
  • SandstoneGlyphs-Unused.pngSandstoneFace-Unused.png Two new textures have been added to the terrain.png file. They look similar to sandstone but instead they contain hieroglyphics. These blocks have not been added to the game yet.

Mobs

Iron golems
  • Now have sounds.

Changes

Blocks

Ladders
  • When crafting ladders, the player will now get 3 instead of 2.
Slabs
  • When crafting slabs, the player will now get 6 instead of 3.
  • Can now be placed upside-down when placed against the bottom of a block.

General

Controls
  • Removed camera controls accidentally added in 12w08a.
F3 debug screen
  • Pressing F3 now displays what biome the player are currently in.
  • Raw, sky & block brightness values called rl, sl & bl respectively.

Fixes

21 bugs fixed

  • Nerfed iron golem spawn rate.
  • Fixed bug with updating powered rail when placing redstone.
  • Fixed stairs being placed upside down when placed on snow.
  • Fixed not being able to put torches on upside-down stairs, probably normal stairs too.
  • Fixed jukeboxes not playing above level 128.
  • Fixed not being able to grow huge mushrooms above level 128.
  • Fixed bug with growing trees above level 128 with bone meal.
  • Fixed crash bug with iron golem building.
  • When building an iron golem, the block above them is no longer destroyed.
  • Fixed tamed wolves still attacking sheep.
  • Fixed some language bugs.
  • Fixed some Anvil bugs.
  • Fixed the client not properly handling biome values greater than 22.
  • Fixed mobs spawning half as quick due to the code checking in invalid spawning places half of the time due to the new world height.
  • Fixed lava lakes generating over bedrock.
  • Fixed iron Golem's texture being white or invisible.
  • Fixed the iron Golem model.
  • Fixed villagers being restless at night.
  • Fixed nether wart dropping from soul sand.
  • Fixed lag from iron golems.
  • Iron golems no longer drown.

Trivia

  • 1.2 is the first version to be released on a leap day.

Notes and references