Minecraft:Java Edition 21w13a

21w13a is the fifteenth Minecraft:snapshot for Minecraft:Java Edition 1.17, released on March 31, 2021,<ref name=article>Template:Snap</ref> which adds Minecraft:goats and Minecraft:light blocks, as well as changes to Minecraft:caves and Minecraft:ore blob generation, and fixes many bugs.

Additions

Blocks

File:Light 15 JE1.png Light

• A new Minecraft:waterloggable source of light, originally from Template:BE.
• Behaves like air and it is visible only when the item is held, similar to Minecraft:barriers.
  • Unlike barriers, lights can only be targeted when holding the item.
• Obtainable only with Template:Cmd.
• Right-clicking cycles its light level.

Mobs

File:Goat JE1 BE1.png Minecraft:Goats

• Spawn in Minecraft:mountains.
  • Currently a place holder until the new mountains are added.
• Do not Minecraft:drop anything.
• Can jump up to 10 blocks high.
• Can be tempted and Minecraft:bred using Minecraft:wheat.
• A Minecraft:bucket can be used on them to get Minecraft:milk.
• They have a 2% chance of spawning as a screaming goat, with different sounds.

Items

Minecraft:Spawn eggs

• File:Goat Spawn Egg JE1 BE2.png Minecraft:Goat spawn egg

General

File:Monochrome Mojang Studios Logo.png

The alternative Mojang Studios loading screen that appears when the Monochrome Logo option is turned on

Accessibility

• Added an alternative solid black background color for the Minecraft:Mojang Studios loading screen, toggleable with the “Monochrome Logo” accessibility category in Minecraft:options.

Minecraft:Tags

• Added the dirt block tag.
  • Contains Minecraft:dirt, Minecraft:coarse dirt, Minecraft:podzol and Minecraft:rooted dirt.
  • Grass, tall grass, ferns, tall ferns, sweet berry bushes, saplings, flowers, azaleas, sugar cane, and dead bushes can be placed on blocks in this tag.
  • Pumpkins and melons can grow into blocks in this tag.
• Added the snow block tag.
  • Contains Minecraft:snow, Minecraft:snow blocks and Minecraft:powder snow.
  • Blocks in this tag turn blocks with a snowy variant below them (like grass) into said snow variant.
• Added the axolotl_hunt_targets entity type tag.
  • Contains Minecraft:tropical fish, Minecraft:pufferfish, Minecraft:salmon, Minecraft:cod, Minecraft:squid and Minecraft:glow squid, which were the previous contents of the axolotl_always_hostiles entity type tag.
  • Axolotls exhibit the cooldown-based "hunt" behavior towards entities in this tag.
• Added the freeze_hurts_extra_types entity type tag.
  • Contains Minecraft:striders, Minecraft:blazes and Minecraft:magma cubes.
  • Entities in this tag take 5 times more damage from the freezing effect.
• Added the freeze_immune_entity_types entity type tag.
  • Contains Minecraft:strays, Minecraft:polar bears and Minecraft:snow golems.
  • Entities in this tag cannot be frozen.

Changes

Blocks

Minecraft:Candle

• Can now be extinguished by Minecraft:splash water bottles and by lingering water bottles.

End portals

• Now render on the bottom face.

Minecraft:Flowering azaleas and Minecraft:flowering azalea leaves

• Are now seen as small Minecraft:flowers by the game.
  • Minecraft:Bees can pollinate them and can remember their position.
  • Bees follow Minecraft:players holding these blocks and can be bred with them.
  • Minecraft:Suspicious stew can be Minecraft:crafted with these blocks, giving a suspicious stew that gives no Minecraft:status effect.<ref>Template:Bug</ref>
  • Minecraft:Saplings grown next to these blocks have a small chance to generate a tree with a Minecraft:bee nest.
  • These blocks cannot be fed to brown Minecraft:mooshrooms.<ref>Template:Bug</ref>

Minecraft:Lightning rod

• Bottom texture is now corrected.

Minecraft:Powder snow

• Hardness was slightly increased, from 0.1 to 0.25.
• Freeze time has decreased to 7 seconds and hurt frequency has decreased to 2 seconds.
• Entities on fire now melt powder snow when colliding, extinguishing themselves in the process.
• Increased vertical movement speed within powder snow (entities fall through powder snow faster).
• Mobs now shake when they are fully frozen.
• Mobs that are damaged by freezing can no longer spawn on powder snow.

Minecraft:Rooted dirt

• The top texture is now randomly rotated.
• Minecraft:Shovels are now the correct Minecraft:tool for collecting.
• Minecraft:Grass, ferns, Minecraft:flowers, Minecraft:dead bushes, Minecraft:saplings and Minecraft:bamboo can now be planted on rooted dirt.
  • Minecraft:Small dripleaf can be planted as well, but only when underwater.
• Can now be turned into Minecraft:dirt path blocks by Template:Control any type of shovel.
• Now placed near other dirt variants in the Creative inventory.

Minecraft:Texture mappings

• Minecraft:Wheat crops, Minecraft:carrots, Minecraft:potatoes, Minecraft:beetroot crops, Minecraft:nether wart, chain, Minecraft:ladder, Minecraft:vines, and Minecraft:glow lichen
  • Backside textures are now mirrored.
• Minecraft:Tripwire, Minecraft:tripwire hook's tripwire, Minecraft:big dripleaf
  • Underside texture is now mirrored.
• Minecraft:Lantern
  • Backside texture of chains are now mirrored.
• Minecraft:Azalea, Minecraft:powder snow
  • Inner side textures are now mirrored.
• Minecraft:Stonecutter
  • Backside texture of the saw is now mirrored.
• Minecraft:Sea pickles
  • Backside texture of the tentacles are now mirrored.
• Minecraft:Small dripleaf
  • Backside texture of the leaves are now rotated correctly.

Items

Minecraft:Leather boots

• Now prevent fall damage when landing on powder snow, to match the behavior in Bedrock Edition.<ref>Template:Bug</ref>

Minecraft:Leather horse armor

• Now protects Minecraft:horses from freezing damage.
  • Although horses are the only entities that can wear leather horse armor through gameplay, leather horse armor worn by other Minecraft:entities through commands also works.

Minecraft:Suspicious stew

• Can now be eaten even if the player is at full Minecraft:hunger.

Mobs

Minecraft:Axolotls

• Now spawn naturally in underground Minecraft:water sources.
• Are now always hostile toward Minecraft:drowned, Minecraft:guardians and Minecraft:elder guardians.
• Now hunt squid, glow squid, tropical fish, cod, salmon, and pufferfish.
  • After killing one of these mobs, there is a two minute cooldown before they can hunt again.
  • They prioritize targeting hostile mobs first before hunting.
• Give Regeneration I and remove Mining Fatigue when a player kills a mob that is in combat with an axolotl.
• Blue, cyan, gold and pink axolotls have had the textures of the outlines on their tails slightly changed.
• Cyan, gold and pink axolotls have had the textures of the frills on their head slightly changed.
• Now save their NBT data (such as age, color and Minecraft:health) when stored in a bucket.

Minecraft:Blazes, Minecraft:magma cubes, and Minecraft:striders

• Now take more damage from Minecraft:freezing.

Minecraft:Elder guardians, Minecraft:guardians, and Minecraft:polar bears

• Now drop cooked cod or salmon instead of raw cod or salmon if on Minecraft:fire when killed or killed by a fire source.

Minecraft:Endermen

• Can now pick up rooted dirt, flowering azaleas and flowering azalea leaves.

Minecraft:Glow squid

• Now spawn naturally in underground water sources.

Minecraft:Husks, Minecraft:zombies, and Minecraft:zombie villagers

• Now drop Minecraft:baked potatoes instead of normal Minecraft:potatoes if on fire when killed or killed by a fire source.

Minecraft:Polar bears, Minecraft:snow golems, and Minecraft:strays

• Are now immune to freezing.

Minecraft:Skeletons

• Skeletons converting to strays now only require the 7 seconds it takes for an entity to be fully frozen to begin converting, instead of the 30 seconds it took before.

Minecraft:Villagers

• Can now accept a filled Minecraft:cauldron as a valid workstation.
• Masons can now sell 4 Minecraft:dripstone blocks for an Minecraft:emerald.

Minecraft:Wandering trader

• Added the following trades to the wandering trader:
  • Selling 2 Minecraft:pointed dripstones for an emerald.
  • Selling 2 Minecraft:rooted dirt for an emerald.
  • Selling 2 Minecraft:moss blocks for an emerald.

World generation

Minecraft:Caves

• Made carvers less likely to be too flat to walk through.
• Increased likelihood of huge caves (very large cheese caves).
• Reduced likelihood of tall 1-block thin pillars.
• Changes were made to make the cheese caves more varied in aspect and size.
• Minecraft:Deepslate blobs can now be found between heights 0 and 16.
• Minecraft:Dripstone clusters can now be found rarely in regular caves.

Minecraft:The End

• Due to a change in the height of the End, end islands are significantly taller. This behavior is not intended.<ref>Template:Bug</ref>
  • As a result, Minecraft:end spikes and the Minecraft:ender dragon are buried within the main island. Minecraft:End cities may be missing upper sections, as they might collide with the world height limit.

Minecraft:Mineshafts

• Increased the max length of wooden pillars and chains.
• Minecraft:Glow berries can be found in mineshaft Minecraft:chest minecarts.

Minecraft:Ores

• Minecraft:Copper ore now generates uniformly between levels 0 and 63.
• Added large Minecraft:diamond ore blobs, generated same with the range and method of the regular one.
• It was intended for Minecraft:iron ore blobs to be more common, however this is not the case.<ref>Template:Bug</ref>

Minecraft:Shipwrecks

• Minecraft:Moss blocks can be found in supply chests.

Gameplay

Minecraft:Advancements

• Goats and axolotls are now required for "Two by Two".
  • Axolotls have always been available for "The Parrots and the Bats" and goats can now be used as well, though no changes were made to the advancement to let this happen.
• The advancement for obtaining diamond armor is now capitalized as "Cover Me with Diamonds", as opposed to "Cover Me With Diamonds".

Build limit

• The message for letting the player know they are attempting to build beyond the build limit no longer says "blocks" at the end.

Spawning

• Added a new mob cap category, underground water creature.
  • Used by axolotls and glow squid.
  • Have a cap of 5, are friendly, are not persistent, and despawn at 128 blocks or more from the player.

Minecraft:Subtitles

• Subtitles for waxing, removing wax, and removing oxidation from a Minecraft:block of copper now display.
  • These were introduced in the previous snapshot, but not correctly implemented.<ref>Template:Bug</ref>

General

Code

• Unused parts of code (unused static fields and methods) are no longer removed.Template:Verify
  • Although this does not affect the game itself, it adds more information for Minecraft:modders.

Minecraft:Materials

• Removed the coral material.
• Added the moss material.

Minecraft:Tags

• Changed the bamboo_plantable_on and enderman_holdable block tags to use the dirt tag, removing other mentions of dirt blocks from the tags.
• Added all copper slab and stair variants to the slabs and stairs block and item tags, respectively.
• Added flowering azalea leaves and flowering azaleas to the small_flowers block and item tags.
• Changed the axolotl_always_hostiles entity type tag to have the previous contents of the axolotl_tempted_hostiles tag, as well as adding elder guardians.
  • The previous contents of the tag have been added to axolotl_hunt_targets.
• Removed the axolotl_tempted_hostiles entity type tag.
• Added leather horse armor to the freeze_immune_wearables item tag.

Textures

• Removed some unused textures, including:
  • The "calibrated sculk sensor" textures.
  • The texture for the zombie villager before 1.9.
  • The "arrow.png" placed outside of the Minecraft:arrow folder that included the purple arrow texture.
  • The ruby item texture.
  • The piglin leather armor models.
  • The footprint particles.