Minecraft 1.21 Snapshot 24w19a (b) is here with more changes to Minecraft 1.21 including some enchantment adjustments, mace buffs and mace nerfs, and a whole lot of technical upgrades, performance improvements for chunk loading, fixing a crash when a Villager died and lots of bug fixes.

Features:

Fixed bugs:

  • Crash when a villager dies
  • Mobs suffocate / go through blocks when growing up near a solid block
  • Launched falling_block entities do not travel through portals
  • Players can be kicked for spamming in a singleplayer world with cheats disabled
  • Reducing the player’s base max health using /attribute does not always reduce their current health
  • Brewing stands reset brew cycle when unloaded
  • Boats / rafts move into blocks when landing in less than one block deep water
  • Dispenser drops honey bottle unless empty slot is available
  • Mobs can pass through fences with carpets on top when growing up
  • Frogs suffocating when growing
  • Ender pearls can teleport players in spectator mode
  • The game freezes and eventually crashes when creating a world with the “spawnChunkRadius” gamerule set to high values
  • The “Trial Spawner crackles” subtitle is only displayed for a split second upon the “minecraft:block.trial_spawner.ambient” sound being played
  • Fall damage multiplier attribute has unintuitive coloring
  • Books placed on a lectern in creative mode are consumed
  • Mace smash attack does not knock back other players when they are not the attacked entity
  • Placing an oversized filled bucket resets the stack size to 1
  • Eating an oversized Soup / Stew resets the stack size to 1
  • Oversized book and quill stacks reset count when signed
  • Buckets are lost when consuming oversized milk buckets
  • Oversized music disc stacks can be duplicated with jukeboxes
  • Dispensers using an oversized stack of Water Bottles resets the stack size to 1
  • Cauldron deletes overstacked tinted shulker boxes
  • Feeding an axolotl an oversized tropical fish bucket resets the stack size to 1
  • Ominous Item Spawner spawns unstackable arrows with potion effects
  • Trial spawners textures are inconsistent
  • set_attributes loot function doesn’t accept an empty list
  • Maces enchanted with wind burst don’t reliably protect players from fall damage
  • Getting data with /data command from a block/chest with a large amount of data can cause the game to crash
  • Data generator items report is not deterministic
  • “foodSaturationLevel” can be negative
  • The data type of the “minecraft:custom_data” component of the recipe result will be forcibly modified
  • Items in a container can be given a count above 99 (to max integer), and can crash the world
  • Knowledge books with a max stack size over 1 consume all items in the stack when used
  • Components that set a status effect sometimes lose parts of the data
  • Entity ID inside EntityTag is ignored when updating a world to 1.20.5
  • Banner pattern entries without colors are invalidated when upgrading to 1.20.5
  • Unexpected error when modifying skull’s custom name to an invalid value
  • Crafting ingredients remain in the grid after crafting certain items, causing item duplication
  • The quick charge enchantment on crossbows no longer increases the crossbow loading speed
  • Sharpness and mob-specific damage enchantments reduce attack damage instead of increasing it
  • Breach and Density enchantments aren’t mutually exclusive
  • Blocks reappear when mined instantly
  • Soul Speed causes your FOV to change whenever you jump
  • Riptide enchantment does not work properly
  • Sweep attacks no longer trigger consistently
  • Campfires knockback the player
  • Moving while being attacked no longer deals knockback correctly
  • Mace can no longer be enchanted with Fire Aspect
  • Fire Protection tooltip is displayed in red text despite being a positive effect
  • The fire aspect enchantment can change the “lit” states of redstone lamps, redstone torches, copper bulbs, furnaces, smokers, and blast furnaces
  • The fire aspect enchantment can turn on campfires and candles while underwater
  • When holding a fire aspect weapon in the mainhand, thrown tridents in the offhand will set mobs on fire
  • Frost walker deletes waterlogged blocks
  • Interacting with certain villagers with the villager trade rebalance enabled causes client crash
  • “projectile_spawned” enchantment effect always activates at 0, 0, 0
  • Lighting candles and campfires with fire aspect doesn’t send vibration to sculk sensors
  • The drop rate of wither skeleton skulls is lowered by 0.01
  • The game can crash when upgrading worlds with zombie villagers from before 1.9
  • Weapon with Bane of Arthropods can only give the target slowness I instead of slowness IV
  • The enchantment entity effect type “run_command” always runs the command in the overworld
  • Holding items enchanted with thorns in your hand no longer works as if you were wearing them
  • Key Binds background is darker than the rest of UI
  • Enchantment entity effect “apply_mob_effect” never applies an amplifier even if one is defined.
  • The item.trident.thunder sound can no longer be heard by the player who was struck by a lightning

Mace changes:

  • Raised Mace durability from 250 to 500
  • Reduced Mace base damage to 5
  • Lower the Mace attack speed from -2.4 to -3.5
  • Reduced Density damage per level per block to 0.5
  • Mace Smash attack damage now has a fall off:
    • First 3 blocks fallen give 4 damage per block
    • Next 5 blocks fallen give 2 damage per block
    • Any block fallen after that give 1 damage per block
  • Density and Breach are now incompatible with each other and the other damage enchantments (Smite and Bane of Arthropods)

Vanilla Changes

  • Blocks frozen by Frost Walker now emit “Block Placed” vibrations (frequency 13)
  • Changes to sounds
  • Improved chunk loading performance
  • Data Pack version is now 43

Sounds

  • Added 4 new cave ambient sounds
  • Replaced turn off and turn on sounds for Copper Bulb with one toggle sound

Chunk loading improvements

  • When reading an already generated chunk from disk, surrounding chunks are no longer unnecessarily loaded
  • This is also visible on the singleplayer world loading screen
  • The new system has less memory and CPU overhead

Screenshots:

Requires:

Java

Java Runtime Environment

How to install:

Minecraft 1.21 Snapshot 24w19a Download Links

Client: Download from Server 1

Server: Download from Server 1

Minecraft 1.21 Snapshot 24w19b Download Links

Client: Download from Server 1

Server: Download from Server 1

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