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Minecraft 21w19a
Java Edition 21w19a.png

Java Edition



Fecha de publicación

12 de mayo de 2021

Snapshot para



Cliente (.json)
Data pack

Mapas de ofuscación


Versión de protocolo

 dec: 1073741851
 hex: 4000001B

Versión de datos


21w19a[1] es el vigesimoprimer snapshot de Java Edition 1.17, lanzada el 12 de mayo de 2021, y con el cual se aumenta la versión mínima de Java a 16, se eliminan opciones no acabadas del juego (sacos, velas y sensores de sculk) de los modos supervivencia y creativo, además de corregir otros errores.

Contenidos añadidos[]


  • Added mineable/axe, mineable/hoe, mineable/pickaxe, and mineable/shovel block tags.
    • Blocks with these tags can be destroyed more quickly with the matching tool.
  • Added needs_stone_tool, needs_iron_tool, and needs_diamond_tool block tags.
    • If a block requires the correct tool to drop, these tags determine which tier of that tool is required.



  • The maximum length a name of an item can have after being renamed has been increased from 35 characters to 50 characters.
Candle Cakes
  • Renamed from "[Color] Candle Cake" to "Cake with [Color] Candle".


  • Now bees can pollinate cave vines.
Squid and Glow Squid
  • Now Leads work with them.


Hanging Roots
  • Changed the way the item model is displayed in the player's right hand.

Command format[]

  • New syntax:
    • /item replace <target> with <item stack> [<count>]
      • Same as old version of /item.
    • /item replace <target> from <source> [<modifier>]
      • Copies item for source to target(s), optionally applying modifier.
    • /item modify <target> <modifier>
      • Modifies item (without copying).


Creative inventory
  • Removed sculk sensors, bundles, and candles from the creative inventory.
    • These items can still be accessed through commands.
    • These items are unfinished, and will be re-added in 1.18.
  • Removed recipes for bundles and candles.
    • These items are unfinished, and their recipes will be re-added in 1.18.
  • Grouped the recipes for crafting copper ingots from a copper block with other recipes for copper ingots.


  • Changed the splash "Now Java 8!" to "Now Java 16!"
  • Added cave vines to the bee_growables block tag.
  • Removed moss blocks from the lush_ground_replaceable block tag.
  • Added azaleas and flowering azaleas to the saplings block and item tags.
  • Java requirement changed from version 8 to version 16.


Changes have been made to the official Caves & Cliffs world generation preview datapack, which gives early access to the world generation coming in Java Edition 1.18.[fn 1]

Creative inventory
  • Unhid the removed items above.
  • Unhid the recipe to craft bundles and candles.


39 errores solucionados
De versiones publicadas antes de 1.17
  • MC-105080 – Ender Dragon is respawned if all Exit End Portal blocks are removed / legacy scanning is done for worlds with new dragon fight.
  • MC-136647 – Leads don't work with Squids.
  • MC-165924 – Snow particles render darker / almost transparent if the block light level is 7 or more.
  • MC-200009 – Crash when using a non-mushroom block in a huge mushroom feature's cap.
De las versiones de desarrollo de 1.17
  • MC-203606 – "X Candle Cake" should be "Cake with X Candle".
  • MC-203718 – Lightning rod stays activated when struck by lighting at the same time as being moved by a piston.
  • MC-203757 – Anvil character limit is too low for items with long names.
  • MC-204244 – Sheep are rendered like white sheared sheep through tinted glass blocks.
  • MC-205626 – The command syntax order of /item is inconsistent.
  • MC-208663 – Pufferfish don't defend themselves from axolotls.
  • MC-208740 – Withers attack axolotls that are playing dead.
  • MC-209533 – Amethyst shard is not grouped with other gemstones in the Creative inventory.
  • MC-212206 – Shulkers generating outside the world border bug out when trying to spawn.
  • MC-213774 – Hanging roots float in your hand.
  • MC-213922 – Shulkers are not spawned in the correct place.
  • MC-213943 – Flying slightly above a big dripleaf can cause it to tilt without touching it.
  • MC-214127 – Despite being a type of berry plant, bees don't pollinate cave vines.
  • MC-214283 – Hanging roots break sound event uses break3 twice, excluding break4.
  • MC-217626 – Spore blossom is positioned rather strangely among flowers in Creative.
  • MC-219445 – Bonemealing big dripleaf in flowing water doesn't update the water.
  • MC-219873 – Lightning Bolt detecting lightning rod incorrectly.
  • MC-220106 – Lightning hitting an entity on copper slabs on top another copper block fully cleans the bottom block first.
  • MC-220215 – Opening a shulker box while an entity is standing on top of it pushes it too high for a short amount of time.
  • MC-221756 – Snow particles do not render at all when the block light level is 7 or more.
  • MC-221844 – Powder snow doesn't produce particles when broken by burning mobs.
  • MC-221957 – Pick Block used on a level 15 light block returns a different item from the default light block.
  • MC-222738 – Leads don't work with Glow Squids.
  • MC-222882 – Spyglass in Search tab of creative inventory is mixed with block types instead of tools where it belongs.
  • MC-223132 – Powder snow doesn't produce a breaking sound or subtitle, when destroyed through extinguishing a burning player, mob, or flame arrow.
  • MC-223171 – Budding Amethyst and Copper variants are far away in the creative inventory.
  • MC-223446 – Shulkers appear in the wrong place when riding an entity.
  • MC-223820 – Azalea & Flowering Azalea aren't part of the block or item tags for #saplings.
  • MC-223907 – Moss block appears in the #lush_ground_replaceable.json twice.
  • MC-224325minecraft.used:minecraft.COMPOSTABLE_ITEM doesn't increase when placing an item into a composter.
  • MC-224388 – Ores and raw materials in smelting preview are off center.
  • MC-224389 – Copper Ingots are no longer grouped in the crafting table.
De la versión de desarrollo anterior
  • MC-224927 – Infested blocks take twice as long instead of half the time.
  • MC-224972 – Infested blocks have no effective tool.
  • MC-225025 – Server side performance drop with dragon's breath area effect clouds.


Videos made by slicedlime:


  1. CavesAndCliffsPreview.zip – Mojang, May 12, 2021


  1. "Minecraft Snapshot 21w19a" – Minecraft.net, May 12, 2021