Java Edition 1.20.5 Pre-Release 1

Minecraft 1.20.5 Pre-Release 1
Edition	Java Edition
Release date	April 10, 2024
Type	Pre-release
Pre-Release for	1.20.5
Downloads	Client (.json); Server
Obfuscation maps	Client; Server
Protocol version	dec: 1073742009; hex: 400000B9
Data version	3829
Resource pack format	31
Data pack format	39
Minimum Java version	Java SE 21

1.20.5 Pre-Release 1 (known as 1.20.5-pre1 in the launcher) is the first pre-release for Java Edition 1.20.5, released on April 10, 2024,^[1] which adds new advancements and fixes bugs. This is the first pre-release released in 2024.

Additions

Gameplay

Advancements

Added the following advancements:
- Isn't it Scute?
  - Get armadillo scutes from an armadillo using a brush.
- Snip it!
  - Remove wolf armor from a wolf using shears.
- Good as New
  - Repair a damaged wolf armor using armadillo scutes.
- The Whole Pack
  - Tame one of each wolf variant.

Command format

Loot functions

Added modify_contents.
- Apply modifier function to every item inside a component.
- If component does not exist, it is not added.
- Fields:
  - conditions - list of conditions to filter this function.
  - component - target component.
    - Allowed values: container, bundle_contents, charged_projectiles.
  - modifier - function or list of functions to be applied to every item inside container

Added set_item.
- Replaces item type of item stack without changing count and components.
- Fields:
- conditions - list of conditions to filter this function.
  - item - new item type.

Added filtered.
- Applies sub-function only to items that match item predicate.
- Fields:
  - conditions - list of conditions to filter this function.
  - item_filter - item predicate used to match items.
  - modifier - functions to apply to matching items.

Added set_custom_model_data.
- Sets custom_model_data component.
- Fields:
  - conditions - list of conditions to filter this function.
  - value - integer number provider.

General

Tags

Added Entity Type tag minecraft:punchable_projectiles for projectiles which should be able to be punched and deflected toward the direction the player is looking.
Added Enchantment tag minecraft:tooltip_order controlling which order Enchantments are listed in tooltips.

Changes

Items

Written book

The limit on the amount of pages for a written book has been removed.

Gameplay

Effects^[2]

Infested
- Now has a 10% chance to spawn 1-2 silverfish instead of 5%.
- Silverfish now spawn at the center of the entity's bounding box and fling out in the direction the entity is facing.
Oozing
- Only spawns slimes in a given 5x5x5 area up to the max entity cramming count.
Weaving
- Now more consistently spawns 2-3 cobwebs on death.
- Players are now affected by the movement buff through cobwebs, affecting 50% of their normal speed instead of 25%.

Command format

Item sub-predicates

General rules of component predicates:
- Unless otherwise specified, a field in predicate with the same name as a field in component that matches (i.e. has the same name as predicate) matches that field value
- Those fields usually have the same type as in the components, but are optional.
- Exceptions:
  - List fields are replaced with collection matchers (see below)
  - Integer and float fields are replaced with ranges
  - Registry ids are replaced with a type that accepts id, list of ids or a tag
Collection matcher is a shared part of predicate used for matching collections. Every instance of this matcher has same fields with same functionality, with only difference being type of matched elementFields:
- size - integer range to match against collection size
- contains - a list of element predicates
  - All conditions must match for predicate to pass
  - Not all elements in tested container have to be matched
  - Elements can be in any order
  - Single element can match multiple predicates
  - Examples (when matching item stacks):
    - {contents:[{item:diamond}]} - matches when there is at least one diamond item
    - {contents:[{item:diamond}, {item:dirt}]} - matches when there is at least one diamond item and at least one dirt item
- count - a list of matchers on element counts
  - Entry fields:
    - test - element matcher
    - count - optional integer range to check against number of elements passing test
  - Examples (when matching item stacks):
    - {count:[{count:3,test:{items:diamond}}]}} matches only when there are exactly 3 stacks of diamonds (no matter the stack size)

Loot functions

Changed set_contents.
- Unused field type has been removed
- Added new mandatory field component:
  - Describes target component to be filled with items
  - Existing contents are replaced
  - Allowed values: container, bundle_contents, charged_projectiles
  - bundle_contents and charged_projectiles ignore empty stacks
Changed set_custom_data.
- Field tag now accepts both SNBT data written as a string (existing format) and unflattened tags.

General

Data pack

Data pack version is now 39.
Added new item sub-predicates.
Added new terrain adaptation type for structures: encapsulate
- Density is added all around every piece of a structure
- Ideal for structures that need to be entirely covered underground
The combination of max_stack_size and max_damage components is no longer allowed in commands and data pack definitions
Added a new option body in entity equipment sub-predicate to match the item in the body armor slot of an entity
The saturation_modifier field on the food component has been replaced with saturation
- saturation is the exact value added to the player's saturation level
- In respect to the former saturation_modifier, this is defined by saturation = nutrition * saturation_modifier * 2
Changed optional equipment_loot_table field in the SpawnPotentials of Monster Spawners and spawn_potentials of Trial Spawner configs.
- Now named equipment instead of equipment_loot_table
- Format: object with fields
  - loot_table - A loot table used to generate the equipment
  - slot_drop_chances - An optional map of equipment slot to specified drop chance
    - Can also be a single value instead of a list to apply to all slots: e.g. slot_drop_chances: 0.0f applies a chance of 0% to all slots
- e.g. equipment: {loot_table: "minecraft:equipment/trial_chamber", slot_drop_chances: {"head": 0.0f, "chest": 0.25f, "legs": 1.0f, "feet": 0.25f}}
- If present, rolled items from the specified loot table are equipped to the mob that spawns.

Languages

Added support for Viossa language.

Particles

Particle options in commands and in fields like Particles in Area Effect clouds now use the same representation as worldgen files (like existing biomes' ambient particle settings)
For example, command /particle minecraft:dust 1.0 0.0 0.0 2.0 ... becomes /particle minecraft:dust{color:[1.0, 0.0, 0.0], scale:2.0} ...
The syntax for particles without extra options (like minecraft:villager) remains unchanged
Changes to block particles (minecraft:block, minecraft:block_marker, minecraft:falling_dust, minecraft:dust_pillar) options:
- Field value has been renamed to block_state
- Field block_state now also accepts plain block name to represent default block state
- Example transformations:
  - minecraft:block minecraft:redstone_lamp[lit=true] -> minecraft:block{block_state: {Name: "minecraft:redstone_lamp", Properties: {lit: "true"}}}
  - minecraft:block minecraft:diamond_block -> minecraft:block{block_state: "minecraft:diamond_block"}
Changes to minecraft:item options:
- Field value has been renamed to item
- Field item now also accepts plain item name to represent item stack with default components
- count field is now ignored
- Example transformations:
  - minecraft:item minecraft:dirt -> minecraft:item{item: {id: "minecraft:dirt"}}
  - minecraft:item minecraft:dirt -> minecraft:item{item: "minecraft:dirt"}
Changes to dust_color_transition options:
- Field fromColor has been renamed to from_color
- Field toColor has been renamed to to_color
- Example transformation: dust_color_transition 1.0 0.0 0.0 0.5 0.0 1.0 0.5 -> dust_color_transition{from_color: [1.0f, 0.0f, 0.0f], scale: 0.5f, to_color: [0.0f, 1.0f, 0.5f]}
Changes to entity_effect options:
- Field value has been renamed to color
- Field color now also accepts list of floats representing RGBA color

Tags

Removed Item tag minecraft:tools (overlapping with minecraft:breaks_decorated_pots), moving previous contents into that tag.

Experimental

Additions

Gameplay

Advancements

Added the following advancement:
- Revaulting
  - Unlock an ominous vault with an ominous trial key.

Changes

World generation

Trial chambers

More consistently buried by terrain when found underground.
Remade chamber_6 with variations, and renamed it to assembly.
Added a new trap dispenser style to chambers.
Fixed various broken jigsaw connections in the corridors.
Chamber 'Eruption':
- Stopped tuff bricks from spawning in the air.
- Added more lights to quadrants.

Gameplay

Ominous trials

Mobs that can wear equipment now often spawn with enchanted weapons and armor.
- Armor enchantments include Protection IV, Projectile Protection IV and Fire Protection IV.
- Weapon enchantments include Sharpness I, Knockback I, Power I and Punch I.
Mobs that wear equipment no longer have a chance to drop their equipment on death.
Players are now chosen 50% of the time when an ominous trial spawner chooses which entity to drop projectiles on top of.
Projectiles now spawn more accurately above chosen entities.

General

Tags

Added mace to the #breaks_decorated_pots item tag.
Added wind_charge, and breeze_wind_charge to the #punchable_projectiles entity type tag.
Added wind_burst, density, and breach to the #tooltip_order enchantment tag.

Fixes

57 issues fixed

From released versions before 1.20

MC-107353 – Ghast fireballs move incorrectly when hit with Knockback enchantment.
MC-165435 – Can't trigger flying mode in Creative while standing in the middle of 2×2 magma block bubble column.
MC-188497 – AngerTime and AngryAt cannot be set on summon.
MC-207353 – Ghast fireballs and wind charges can't be redirected in melee if the attack does 0 damage.
MC-229209 – Loot table function set_count doesn't work with unstackable items anymore.

From 1.20

MC-263315 – Attack target of hoglins/zoglins can't be detected by /execute on target.

From 1.20.1

MC-264456 – Entity targeted by frogs and axolotls can't be detected by /execute on target.
MC-265390 – /forceload command provides wrong output.

From 1.20.4

MC-268000 – The client crashes when using /give to give players a skull.
MC-269496 – You don't get any damage if you fight against the breeze in a minecart or in a boat.

From the 1.20.5 development versions

MC-267934 – Sending ClientboundTransferPacket followed by disconnect just kicks the player.
MC-268346 – Jump can be used with generic.jump_strength set to 0 resulting in a speed boost.
MC-268947 – Flying cannot be initiated reliably when the minecraft:generic.gravity attribute is increased.
MC-269191 – Old villagers can't trade.
MC-269192 – Breeze is not affected by the '/execute on target' command.
MC-269266 – Area effect cloud particles from creeper explosions are incorrectly tinted.
MC-269320 – Books with more than 100 pages get cut off when upgraded.
MC-269357 – Flow and guster banner pattern descriptions display as raw translation strings.
MC-269366 – Mace doesn't break decorated pots unlike other tools.
MC-269501 – The text above the hotbar has no background, even when the "Text Background" setting is "Everywhere" in Spectator mode.
MC-269508 – Player keeps vertical momentum when jumping when landing on the ground from sonic boom.
MC-269609 – Wind charges can harm the ender dragon while it perches atop the end portal, unlike arrows and tridents.
MC-269610 – Wind charges have the capability to harm the wither when it has reached half health or less.
MC-269680 – Game crashes when trying to save after modifying item stack to have a max_stack_size below its current stack size.
MC-269707 – Brewing stand slots have artificial maximum stack size of 64.
MC-269765 – Mace damage does not reset after a hit while still falling.
MC-269933 – limit_count item modifier can create overstacked items.
MC-269947 – Clicking spam with mace causes very high damage.
MC-269948 – The subtitle for the "minecraft:event.mob_effect.raid_omen" sound event displays as a raw translation string.
MC-269949 – New "Raid Omen" effect texture is using Programmer Art evoker as base.
MC-269954 – Striking non-living entities with a mace enchanted with Wind Burst propels the player upward, even when they are flying.
MC-269955 – When flying in Creative mode, hitting ender dragons with a mace enchanted with Wind Burst pushes the player upward, unlike when attacking other mobs.
MC-269959 – "Not a list" printed to console when loading into a world.
MC-269963 – Bad Omen is not removed when experimental features are disabled.
MC-269974 – Mobs with the Weaving effect, when dying, are unable to replace replaceable blocks with cobwebs.
MC-269976 – Wind Burst book available from villager trading.
MC-269977 – Wind Burst enchantment is obtainable in enchanting table.
MC-269980 – Wind Burst enchantment triggers from normal attacks rather than smash attacks.
MC-269986 – Inactive ominous trial spawner's top texture is mirrored.
MC-269993 – Hitting wind charges using mace with Wind Burst creates very high upwards momentum.
MC-269999 – Potions of Infestation, Oozing and Weaving can be obtained without experimental features enabled.
MC-270001 – The particle 'minecraft:item minecraft:air' crashes the client.
MC-270004 – Giving yourself an item with a Wind Burst enchantment level higher than 3, then hitting certain entities crashes the game.
MC-270005 – Mace smash attack can be done multiple times from a single fall.
MC-270046 – Mace's unique enchant is ineffective or no further effect if the level higher than max level, and causes error to be logged for wind burst.
MC-270048 – Vault textures are inconsistent.
MC-270060 – The glowing parts of trial spawner textures are inconsistent.
MC-270094 – Fletcher sells new tipped arrows without experimental features enabled.
MC-270099 – Killing a mob with Weaving effect places cobwebs even if mobGriefing is disabled.
MC-270119 – The contents slot for the /item command does not function with shot arrows, tridents, and fireballs.
MC-270125 – Wind Burst can be obtained from chest and fishing loot.
MC-270161 – Wind Burst enchantment is significantly stronger on vehicle entities.
MC-270201 – Fishing rod line does not account for the scale attribute in third-person.
MC-270236 – area_effect_cloud and lingering potions causing potion_contents.custom_color to be slightly transparent.

From the previous development version

MC-270387 – Wind burst can launch the player when deflecting ghast fireballs.
MC-270412 – Wind charge item crash on non-experimental worlds.
MC-270475 – Container component slot -1 crash.

Videos

Videos made by slicedlime:

References

↑ "Minecraft 1.20.5 Pre-Release 1" – Minecraft.net.
↑ MC-270954 – resolved as "Won't Fix".

[1] "Minecraft 1.20.5 Pre-Release 1" – Minecraft.net.

[2] MC-270954 – resolved as "Won't Fix".

[1]

[2]

Java Edition 1.20.5 Pre-Release 1

Contents

Additions

Gameplay

Command format

General

Changes

Items

Gameplay

Command format

General

Experimental

Additions

Gameplay

Changes

World generation

Gameplay

General

Fixes

Videos

References

Navigation

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