Minecraft 1.21.9 Snapshot 25w34b enhances the Copper Golem, optimizing item sorting from copper chests. The snapshot introduces a new main menu panorama, refreshing the main screen interface. A Code of Conduct screen is added for servers, requiring players to accept the rules of conduct. The new /fetchprofile command allows asynchronous retrieval of player profile information. Bug fixes and rendering improvements for block entities and items are implemented to support the Vibrant Visuals update.

Features:

Additions

Command Format

/fetchprofile

  • Retrieves player profile data from Minecraft servers asynchronously to avoid game pauses.
  • Outputs a message upon completion, enabling users to copy a resolved minecraft:profile component or execute /give @s minecraft:player_head with the component.
  • Command success value is always 1 due to asynchronous execution.
  • Syntax:
    • /fetchprofile name <player name>: Resolves profile using case-insensitive username.
    • /fetchprofile id <uuid>: Resolves profile using UUID.

Server Code of Conduct

  • Displays a screen requiring players to accept server rules before joining, if enabled.
  • Checkbox allows skipping unchanged Code of Conduct on future connections.
  • Controlled by enable-code-of-conduct boolean in server.properties.
  • Rules stored in codeofconduct subfolder as <language_code>.txt, prioritizing player’s language, defaulting to en_us or an available file.

Panorama

  • Main menu panorama updated to a village scene with copper golems for enhanced visuals.

Changes

Mobs

Copper Golem

  • Eyes invisible under Potion of Invisibility effects, aligning with standard mechanics.
  • Hitbox adjusted:
    • Width set to 0.6 blocks for single-door pathfinding.
    • Height set to 1.01 blocks to prevent block entrapment.

Gameplay

Sounds

  • End flash sound delay increased for better audio pacing.
  • Copper golem and copper chest sounds audible up to 12 blocks, with quieter sorting sounds.

Block Entity Data

minecraft:skull

  • profile field now matches minecraft:profile component, immutable and resolved only when required.

Block States

  • align_items_to_bottom property removed from shelf block, replaced by a boolean field in shelf block entity (default: false).
  • Existing shelves with this property reset to default.

Data Component Format

minecraft:profile

  • Profiles no longer auto-resolve to prevent unintended changes.
  • Behavior modes:
    • Static: Used with properties field or when both name and id are present/absent, rendering as-is with default skin if needed.
    • Dynamic: Used with either name or id, resolves to latest skin with potential delay, showing default skin temporarily.
  • Dynamic profiles reflect current player skin, requiring client restart for skin updates.
  • Dynamic and static profiles do not stack due to differing contents.
  • Older map player heads convert to dynamic profiles upon loading.

Data Pack

  • Pack format version updated to 84.0.

Resource Pack

  • Version updated to 66.0, supporting new copper-related sprites.

Options

  • “Hide Lightning Flashes” renamed to “Hide Sky Flashes,” now suppresses End flashes without world illumination; flash source and sound remain.

Text Component Format

  • Bold and italic styles ignored for sprite rendering to ensure consistency.

Fixes

  • Resolved 52 issues, including:
  • Pre-1.21 Versions:
    • MC-383: World selection list overflow for names, versions, timestamps.
    • MC-36783: Item and glow item frames fail to update hitboxes with maps.
    • MC-59413: Barriers allow water and lava drips.
    • MC-147784: Fletching table briefly shows crafting table GUI in spectator mode.
    • MC-259673: Inconsistent tab selection in world creation and statistics screens.
    • MC-260591: /execute on origin/owner fails across dimensions.
    • MC-260920: Statistics screen columns lack keyboard navigation.
    • MC-265290: Command block interface Tab key navigation inconsistent.
    • MC-270190: Loom UI banner patterns lack tooltips.
    • MC-270669: Incorrect translation key argument order for block properties.
    • MC-272584: Fireballs from player-owned explosions lose ownership.
  • 1.21.1:
    • MC-276931: Incorrect enchanted book rarity.
  • 1.21.5:
    • MC-296789: Inconsistent text color in test instance block interface.
  • 1.21 Vass6:
    • MC-297496: Realms information box text disappears when selected.
    • MC-299067: Arrows lose ownership on multiplayer disconnection.
    • MC-299115: Deflected arrows lose owner tag when owner is offline.
  • 1.21.8:
    • MC-300856: Incorrect I-beam cursor color in book signing screen.
  • 1.21.9 Development Versions:
    • MC-300045: Hand animation triggers on copper golem right-click.
    • MC-300046: Copper golem statue models clipped in inventory.
    • MC-300048: Copper golem statue item entities oversized.
    • MC-300066: Ender Dragon Spawn Egg mislabeled as disabled in Peaceful mode.
    • MC-300082: NoAI copper golems adjust rotation.
    • MC-300083: Silent copper golems produce sounds.
    • MC-300085: Copper golem statue poses off-centered.
    • MC-300130: “commands.summon.failed.peaceful” lacks plural “Monsters.”
    • MC-300134: Copper Golem Spawn Egg not alphabetized in creative inventory.
    • MC-300213: Copper golem hitbox too large for single doors.
    • MC-300222: Credits not resumed after gamemode switcher/debug menu exit.
    • MC-300245: Double chest right side lacks sound with copper golem interaction.
    • MC-300249: Copper golem statue block outline misaligned.
    • MC-300365: Copper golems inconsistently activate trapped chests.
    • MC-300406: Open copper chests remain open after updates.
    • MC-300441: Nether ambient sounds persist after leaving Nether.
    • MC-300475: Glowing outline black on invisible sheep fur.
    • MC-300480: Worn copper golem statues misrotated.
    • MC-300695: Sprint toggle resets on screen open.
    • MC-300718: Auto-re-sneak fails with Sneak Toggle enabled.
    • MC-300796: Sweet berry bushes drop excess berries.
    • MC-300804: Glowing outline white for non-player invisible entities.
    • MC-300825: NaN motion entities cause client crashes.
    • MC-300839: Disc sounds audible across dimensions.
    • MC-300846: /rotate command doubles entity motion per use.
    • MC-300888: pack.mcmeta no longer supports versions below 16.
    • MC-300911 – Glowing item & block displays no longer glow
  • Previous Development Version:
    • MC-300968: Flying state not saved on world reload.
    • MC-300970: Missing minecraft:entity.copper_golem.shear sound.
    • MC-300972: End flash sounds audible during credits.
    • MC-300975: Copper golems wear banners backwards.
    • MC-300983: “speec” misspelled in ExplosionParticleInfo codec.
    • MC-300995: Game crashes on F3 menu change during disconnection.
    • MC-301004: Normal guardians cannot enter boats.
    • MC-301030: Frosted ice melts in the End.
    • MC-301032: Bees in End hide in hives during Overworld rain.

Screenshots:

Rendering update

New menu panorama

Server conduct

Bug 383

Copper golem updates

Copper statue changes

End storms

The shelf update

Requires:

Java 21+

Java Runtime Environment

How to install:

Minecraft 1.21.9 Snapshot 25w34a Download Links

Client: Download from Server 1

Server: Download from Server 1

Minecraft 1.21.9 Snapshot 25w34b Download Links

Client: Download from Server 1

Server: Download from Server 1

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