Minecraft:Java Edition 23w42a

23w42a is the third Minecraft:snapshot for Minecraft:Java Edition 1.20.3, released on October 18, 2023,<ref>Template:Snap</ref> which adds the "Update 1.21" experimental toggle and fixes bugs.

Additions

General

Minecraft:Experiments

• Added the "Update 1.21" experimental toggle (update_1_21 data pack).

Minecraft:Game rule

• Added playersNetherPortalDefaultDelay to control time (in Minecraft:game ticks) that a player needs to stand in a Minecraft:Nether portal before changing dimensions, while in Survival and Adventure mode. Defaults to 80.
• Added playersNetherPortalCreativeDelay to control time (in game ticks) that a player needs to stand in a Nether portal before changing dimensions, while in Creative mode. Defaults to 1.
• Added projectilesCanBreakBlocks, to control whether impact projectiles destroy blocks that are destructible by them (i.e. Minecraft:chorus flowers and Minecraft:decorated pots), and to control whether Minecraft:tridents destroys Minecraft:pointed dripstones. Defaults to true.

Minecraft:Loading screen

• Added a new screen for handling corrupted level files.
  • It gives the player the option to restore a backup, and a quick link to the bug tracker for reporting a bug about it.

Minecraft:Options

• Added "Hide Splash Texts" in accessibility options, which allows the Minecraft:splash in the main menu to be hidden.

Minecraft:options.txt

• Added hideSplashTexts, defaults to false.

Minecraft:Particles

• Added new white_smoke particle type.

Changes

Blocks

Minecraft:Decorated pot

• Now appears in the "Redstone" tab of the Creative inventory.

General

Minecraft:Custom structure

• Changes to structure type definitions (data/minecraft/worldgen/structure):
  • Added optional pool_aliases list to jigsaw structures.
  • Aliases represent the possibility to rewire jigsaw pool connections by redirecting pool references on individual structure instances.
  • Alias variants are represented in type and is one of:
    • direct: 1:1 mapping from an alias to a new pool.
      • alias: Pool to replace.
      • target: Pool to replace with.
    • random: 1:n mapping where a pool from n is randomly selected for the structure instance.
      • alias: Pool to replace.
      • targets: Randomized list of candidate pools to replace alias with.
    • random_group
      • groups: Each group is a randomized list of above alias types.
      • Only one group is selected per structure instance.
      • This enables modelling selections such as "if pool X is replaced with X1, also replace pool Y with Y1".

Minecraft:Data pack

• The Minecraft:pack format version is now 21.
• Added white_smoke particle definition.
• Renamed field Template:Nbt to Template:Nbt on Minecraft:TNT entity.

Minecraft:Entity format

• In NBT format for entity type tnt:
  • Added block_state.
    • This field allows replacement of rendered block model.
  • Renamed Fuse to fuse.

Minecraft:Raw JSON text format

• Changes to chat component serialization:
  • Components of type nbt now have source field with allowed values: Template:Cd.

Minecraft:Resource pack

• The Minecraft:pack format version is now 19.
• Added block model, item model and block state definitions for crafter.
• Added GUI container texture and sprites for crafter.

Minecraft:Tag

• Added firework_rocket into the impact_projectiles entity tag.

Experimental

These additions and changes only take effect when the Minecraft:Update 1.21 experimental data pack is enabled.

Additions

Blocks

File:Crafter JE1.png File:Crafter Triggered JE1.png File:Crafter Crafting JE1.png Minecraft:Crafters

• Can be crafted with five Minecraft:iron ingots, a Minecraft:crafting table, two Minecraft:redstone dusts, and a Minecraft:dropper in the crafting table.
• Can be oriented in any direction when placed.
• A Minecraft:pickaxe can increase the speed of mining them.
• Have a user interface similar to crafting table.
  • Have 3×3 interactable crafting grid.
  • Their crafting grid slots are toggleable, meaning that the player can change the behavior of a slot by clicking or pressing on a slot with an empty hand.
    • A toggled slot cannot hold any items and therefore cannot have items placed into it by other blocks such as Minecraft:hoppers and Minecraft:droppers.
    • A toggled slot can be toggled off by player, whether clicked directly or holding item(s), pressing slot keys associated with an empty or a not empty hotbar slot.
  • Unlike the crafting table, the slots display a preview of the crafted item which will be crafted and ejected on the next redstone pulse, but cannot be manually taken out by the player.
  • The user interface is shared between all players interacting with them, meaning that multiple players can interact with them at the same time, similar to Minecraft:chests and hoppers.
  • The user interface does not have a Minecraft:recipe book to provide help, so the player must know the recipes.
• The crafter ejects one crafted item at a time when powered by a new redstone pulse, a redstone signal that is not a continuous signal.
  • Upon receiving this new signal, crafters eject the recipe result from the front face.
  • All the result items are ejected together when the output result has multiple type of items.
• They can interact with hoppers and droppers, to input/output automatically.
  • Hoppers can be used to both insert and pull items out of them.
  • Droppers can be used to insert items into them.
  • Moving items in from another block with a hopper or a dropper prioritizes filling items into slots, by following these rules:
    • If there is a toggled slot, skipped.
    • If there is not a toggled slot, crafters prioritize the first empty slot from left-to-right and top-to-bottom.
    • If there is not a toggled slot, and there are no empty slots, crafters prioritize the smallest stack of the same item. If there are multiple possible stacks, pick the first from left-to-right and top-to-bottom.
  • If failed to select a slot, hoppers and droppers don't take any action.
• When read by a Minecraft:redstone comparator, the redstone signal strength is 0 to 9, where each non-empty or toggled slot adds 1 strength.

Changes

General

Minecraft:Tag

• Added crafter into mineable/pickaxe and needs_stone_tool block tags.