24w03b

We are releasing Snapshot 24w03b to fix a crash, along with some bug fixes and minor changes.

Happy Mining!

Experimental Features

Breeze

• Updated the model, texture, and animation of the Wind Charge projectile to give it a more dynamic look and feel

Fixed bugs in Snapshot 24w03b

• MC-266032 Attempting to copy a "Copy of a copy" book in a Crafter behaves incorrectly
• MC-266577 Some trial spawners in trial chambers spawn mobs without persistence
• MC-267918 The game crashes when opening the configure realms menu
• MC-267927 The hitboxes of magma cubes are too large
• MC-267935 Items on top of soul sand or mud will be rendered black

24w03a

New year, new Snapshot - we're now releasing the third Snapshot of Minecraft 1.20.5. This time around, we're bringing some updates to the Armadillo, the Breeze, as well as accessibility improvements.

In addition to a big bundle of bug fixes, we're bringing some changes to how spawn chunks are handled.

The spawn chunks are an area of the Overworld located at the world spawn which are always loaded in memory. These are useful for some players but use more of your computer’s resources and make the game load and run more slowly. (You can read more about spawn chunks at the community wiki!)

In this snapshot we made the size of the spawn chunks configurable by adding a new gamerule: spawnChunkRadius. The new default setting is 2 (which creates a 48x48 block area). This is 98% smaller than the previous area and will result in a noticeable performance improvement for most players.

If you would like to keep your spawn chunks working like they did before, you can use the game rule to change the spawn chunk radius value to 10. This will make your spawn chunks work the same as they did before, but you will miss out on the performance gains.

We're interested in hearing your feedback on this change and how the new default setting affects you.

Let's talk about spawn chunks!

New Features

Armadillo

Armadillo visual update! We gathered feedback from the first Armadillo snapshot, and the next step in the look of the Armadillo, the Armadillo Scutes and the Wolf Armor are now here.

• Armadillos now also spawn in Badlands

Armadillo Rolling Up Behavior

• Spiders and Cave Spiders will run away from Armadillos not in a rolled up state

Changes

• Adjusted the texture of the Wolf Collar layer to be more consistent with the new Wolf Armor

Accessibility

• The default focus is now always set when entering or exiting any menu while navigating using tab or arrow keys

Technical Changes

• The Data Pack version is now 28
• The Resource Pack version is now 24
• Custom Villager trades can be configured to accept items that have different tags from the expected item by adding ignoreTags: true in the trade's NBT
• When entities leave or enter the end the area they arrive in will now stay loaded for 15 seconds, matching the behavior of nether portals
• Added transfer packets
• Added cookie packets
• Decreased the default size of the spawn chunks and made the value configurable

Transfer Packets

• Custom servers can now request that clients connect to another server with a new packet
• When a client is transferred it will connect to the target server with a new transfer intent (id 3)
• By default servers will not accept incoming transfers and will disconnect the client
• This can be changed by setting the accepts-transfers property to true in the server.properties file
• Resource packs are maintained across transfers
• In the case of a transfer custom servers can skip authentication with a new flag

Cookie Packets

• Cookie packets allow custom servers to request and store data on a client
  • Each cookie may be up to 5 KiB in size
  • Cookies may be requested during login, configuration and play phases — but only stored during the configuration and play phases
• Cookies are persisted across server transfers but are not persisted when the player disconnects
  • This allows servers to pass along information such as authentication or custom game data to the new server

Spawn Chunk Changes

• The size of the spawn chunks changed from radius 10 (19x19 entity ticking chunks) to radius 2 (3x3 entity ticking chunks)
  • This was done to reduce memory usage, loading times and CPU usage
  • We opted to not fully remove spawn chunks to allow players who currently utilize this functionality to continue to do so
• Added a new gamerule spawnChunkRadius to set the size of the spawn chunks
  • Possible values are 0 to 32, where 0 completely disables the spawn chunks and 10 is equivalent to the functionality before this change
  • Default value is 2, equivalent to 3x3 entity ticking chunks

Data Pack Version 28

• The minecraft:sweeping enchantment has been renamed to minecraft:sweeping_edge
• Added Advancement Criteria trigger default_block_use which triggers due to the default interaction of a block by a player, such as opening a door
• Added Advancement Criteria trigger any_block_use which triggers due to any type of interaction with a block by a player, such as using an item on the block or its default usage

Tags

Item Tags

New item tags controlling what enchantments can be added to what gear:

• minecraft:enchantable/foot_armor
• minecraft:enchantable/leg_armor
• minecraft:enchantable/chest_armor
• minecraft:enchantable/head_armor
• minecraft:enchantable/armor
• minecraft:enchantable/weapon
• minecraft:enchantable/sword
• minecraft:enchantable/mining
• minecraft:enchantable/mining_loot
• minecraft:enchantable/fishing
• minecraft:enchantable/trident
• minecraft:enchantable/durability
• minecraft:enchantable/bow
• minecraft:enchantable/equippable
• minecraft:enchantable/crossbow
• minecraft:enchantable/vanishing

Entity Type Tags:

• Added minecraft:ignores_poison_and_regen for entities that cannot be affected by Poison and Regeneration effects
• Added minecraft:illager_friends for entities that Illagers will consider allies (unless on a different team)
• Added minecraft:inverted_healing_and_harm for entities that have inverted meanings of the Healing and Harm effects
• Added minecraft:not_scary_for_pufferfish for entities that will not cause Pufferfish to puff
• Added minecraft:sensitive_to_bane_of_arthropods for entities sensitive to Bane of Arthropods
• Added minecraft:sensitive_to_impaling for entities sensitive to Impaling
• Added minecraft:wither_friends for entities that the Wither will not target and which cannot harm the Wither

Resource Pack 24

• The ttf font provider transforms have been adjusted to have more reasonable defaults
  • shift is no longer applied double, and now directly represents a number of pixels in the game UI
  • The font EM square is fitted to size pixels in the game UI, instead of between the font ascender and font descender
  • The font baseline is positioned consistently with the default font (7 pixels below line top)
  • This means that generally, any font with a size of 9 and no shift should look correct by default

Experimental Features

Breeze

• Breeze now deflects all projectiles
• Deflected projectiles now deflect in the direction of the shooter

Trade Rebalance

• In the Trade Rebalance Experiment, Villagers who buy armor now ignore durability and can buy damaged armor

Fixed bugs in Snapshot 24w03a

• MC-153160 Villagers don't auto-fill items if NBT data doesn't match
• MC-155857 Team command doesn't affect illagers and witches' AI
• MC-171981 Map of fuel times is created anew every time an item is placed in a furnace, instead of being cached
• MC-187372 There is no space between fps limit/vsync and graphics level in the debug screen
• MC-260889 Players can use water buckets and lava buckets on blocks that are out of reach
• MC-261596 Crafting Table search keyboard shortcut not working
• MC-265273 The tab list in create world screen does not indicate it's tab-focused by highlight or rendering borders
• MC-265520 Switching connection protocols sometimes produces errors
• MC-265749 Tooltips flash when the values of buttons or fields are changed
• MC-266078 The output of Crafting and Stonecutting Copper Grates is inconsistent with each other
• MC-267044 Tick status strings contain inconsistent word usage
• MC-267045 Some tick strings are missing articles and are unclear
• MC-267086 Compass does not indicate spawn point correctly when game is frozen with /tick
• MC-267104 The bottom face textures of breezes' rods are incorrect and don't match with surrounding colors
• MC-267149 Crafter top face has an inverted UV texture map
• MC-267366 You cannot use Spider Eyes on Baby Armadillos to age them up
• MC-267367 Wolf armor flashes red when the wolf takes damage
• MC-267371 Shulkers hitbox doesn't scale with generic.scale
• MC-267377 Applying bone meal to mangrove leaves no longer produces any particles
• MC-267378 Armor stand interaction points do not change with scale
• MC-267379 Applying bone meal to rooted dirt no longer produces any particles
• MC-267380 Cannot open inventories beyond default block reach
• MC-267383 Can't place water and lava with extended attribute "block_interaction_range"
• MC-267384 Unused duplicate wolf armor sound events
• MC-267385 Attribute entity_interaction_range is capped by block_interaction_range
• MC-267388 The subtitle for brushing armadillos is inconsistent with other item usage subtitles
• MC-267389 Armadillos don't always stand in close proximity to one another when breeding
• MC-267392 Armadillos are scared of players in spectator mode
• MC-267395 Armadillos panic when receiving fall damage
• MC-267397 Armadillos and baby armadillos stand a bit too far away from players that are tempting them
• MC-267398 Armadillos don't play a roll out sound after finishing hiding
• MC-267402 Head of armadillo in boat is twitching when turning the boat
• MC-267404 Scared armadillo pushed into boat is scared of player riding the boat
• MC-267405 Scared armadillo can move when having a passenger
• MC-267406 Armadillos with their "Silent" NBT tag set to "1b" still play their landing and rolling up sounds
• MC-267413 Feeding an armadillo a spider eye doesn't cancel eating it
• MC-267416 Particles created from Slimes do not account for the scale attribute
• MC-267417 Suffocation overlay shown when on solid almost-full blocks at scale < .06
• MC-267418 Warden sonic boom attack doesn't account for the scale attribute
• MC-267420 Boat placement ignores custom "block_interaction_range" attribute
• MC-267422 Attribute entity_interaction_range is classified as 'generic', but has no effect on mobs
• MC-267427 Rendering offset of sleeping entities does not account for scale attribute
• MC-267428 Phantom wing particles do not account for scale attribute
• MC-267434 Upside-down mobs with big scale attribute are displayed above hitbox
• MC-267435 Baby armadillos do not follow parents consistently or closely
• MC-267454 Baby striders are visually the same size as normal striders
• MC-267456 Changes to item_used_on_block advancement criteria breaks previous functionality
• MC-267465 1.20.3 upload error: "Cannot invoke "ctt.c()" because "this.b" is null"
• MC-267470 The regeneration effect granted from beacons is no longer applied to players
• MC-267479 Inventory view model scales with generic.scale
• MC-267497 Baby armadillos do not sound high pitched when curling up
• MC-267538 Putting placeable blocks inside decorated pots also places them
• MC-267565 Low scale attribute lets you breathe underwater
• MC-267588 The hand animation is no longer played when putting items inside decorated pots
• MC-267706 Evoker and illusioner summon particles do not account for scale attribute
• MC-267707 Wither particles do not account for scale attribute
• MC-267708 The wither's skull projectile attacks do not account for the scale attribute
• MC-267725 Players' experience levels no longer render above the health and hunger bars
• MC-267726 Applying bone meal to blocks underwater no longer produces any particles

23w51b

Coming in hot, here is Snapshot 23w51b, fixing a crash in 23w51a.

Fixed bugs in 23w51b

• Fixed a crash that would occur when the nametag of a player was visible during sleeping, swimming or dying

23w51a

We're now releasing Snapshot 23w51a, the first snapshot for Minecraft 1.20.5. This one comes with a present for your pet Wolf in time for the holidays - and the Armadillo.

Happy brushing!

New Features

• Added Armadillo, Armadillo Scutes and Wolf Armor

Armadillo

• The Armadillo is a new passive mob that:
  • drops Armadillo Scutes periodically
  • drops Armadillo Scutes when brushed
  • spawns in Savannas
  • its favorite food is Spider Eye

Armadillo Rolling Up Behavior

• Armadillo rolls up when it detects a threat such as:
  • a sprinting player
  • a player in a vehicle or mounted
  • undead mobs
• It does not roll up when:
  • it is fleeing
  • in water
  • in the air or
  • on a leash
• When an Armadillo is rolled up it does not walk, cannot eat, and will not be tempted by food
  • It will continue to scan for threats: if none are detected for 3 seconds, it will unroll

Armadillo Scutes

• Armadillo Scutes can be used to craft Wolf Armor
• They are dropped by Armadillos
• Dispensers can be used to brush Armadillo Scutes off Armadillos

Wolf Armor

• Using Wolf Armor on an adult tamed Wolf will equip the armor on the wolf.
• Only a Wolf's owner can put a Wolf Armor on their tamed Wolf, and with this in mind; Dispensers cannot put Wolf Armor on wolves.
• Wolf Armor gives the same protection as Diamond Horse Armor.
• Using Shears on a Wolf that is wearing armor will make it drop the armor
• Only a Wolf's owner can shear a Wolf Armor from it, and with this in mind; Dispensers cannot remove Wolf Armor from wolves.
• If a Wolf dies while wearing armor, it will drop the armor.

Changes

• Renamed scutes that come from Turtles to Turtle Scutes
• Llamas and Shulkers are no longer able to destroy armor stands

Technical Changes

• The Data Pack version is now 27

Data Pack 27

• Llamas now use a new damage type spit instead of mob_projectile
• FactorCalculationData has been removed from mob effect instance tags
• Added generic.scale attribute that can be used to rescale any living entity
• Player reach distance can now be controlled with the generic.block_interaction_range and generic.entity_interaction_range attributes
• The maximum number of blocks that an entity can step up without jumping is now controlled by the generic.step_height attribute

Experimental Features

Breeze

• Added a new 'whirl' idle sound
• Added a 'charging up attack' sound
• Added a sound that plays while the Breeze is in the air
• Added a projectile deflection sound
• Tweaked existing sounds

Trial Spawner

• The Trial Spawner now has the same two default loot tables as they have in the Trial Chamber

Fixed bugs in 23w51a

• MC-130244 When opening chat in F1 mode, previous messages aren't visible
• MC-153643 Debug overlay is rendered behind hotbar items
• MC-167375 Baby turtle subtitles are grammatically incorrect
• MC-173672 Title text renders in front of player names in player list
• MC-184066 Respawn anchors don't produce an ambient sound
• MC-184622 Sound for exiting a portal/travelling to another dimension does not use its subtitle string despite it existing in en_us.json
• MC-185379 Baby polar bear subtitle does not explicitly mention it comes from a baby polar bear
• MC-187267 Title text renders in front of sidebar
• MC-187372 There is no space between fps limit/vsync and graphics level in the debug screen
• MC-193511 Title text renders in front of narrator text
• MC-193515 Boss bar text renders in front of narrator text
• MC-193517 Boss bar text renders in front of sidebar
• MC-193521 Boss bar text renders in front of F3
• MC-193524 Boss bar text strikethough/underline renders on tab list
• MC-193753 Respawn anchor ambient sound subtitle refers to it as a portal
• MC-194948 Block breaking subtitle inconsistent with painting, item frame and lead breaking subtitles
• MC-198787 Inefficient streams in GoalSelector
• MC-198963 Chat text renders in front of player names in player list
• MC-219899 Bone meal used on rooted dirt causes the particles to appear above it, despite the growth being below it
• MC-238242 There is an unnecessary black pixel in the upper right corner of small potion UI icons in the inventory
• MC-248961 takenDamage for achievement criteria is calculated wrongly when the player has equipped a helmet
• MC-249335 Using bone meal on mangrove leaves spawns growth particles at the center of the block instead of below it
• MC-251027 Wearing a helmet doesn't reduce the damage of falling anvils or stalactites by 1⁄4
• MC-252409 Memory statistics within the debug menu contain some unnecessary spaces
• MC-259587 Negative item durability causes the durability bar to render incorrectly
• MC-261577 The nether portal overlay is rendered completely opaque when using spyglasses while standing inside of nether portals
• MC-263256 Chat renders on top of TAB, blocking information
• MC-265541 player.dat_old won't be read even if player.dat doesn't exist
• MC-265669 Hotbar text renders above subtitle background but under subtitle text
• MC-265835 The freezing effect is rendered totally opaque when using a spyglass
• MC-266055 Opening or closing a copper door or trapdoor while holding an axe / honeycomb grants wax-related advancement
• MC-266135 Cached macro commands ignore permission level, allowing limited permission escalation
• MC-266136 Macro commands ignore function-permisson-level server setting, including when lower than default
• MC-266144 Copper Doors are not part of the #doors item tag
• MC-266145 Copper Trapdoors are not part of the #trapdoors item tag
• MC-266308 Copper Bulbs have unused "turn_off" sound
• MC-266334 Shulker bullets destroy armor stands
• MC-266389 Glow berry particles are barely visible when bonemealed
• MC-266430 Breeze on top of a non-full block produces particles of the block below it
• MC-266432 Exposed, weathered and oxidised copper bulbs are unwaxed in trial chambers
• MC-266469 When attacked, breezes sometimes stop pathfinding, jumping, or firing wind charges
• MC-266524 Breezes sometimes get the zoomies after jumping
• MC-266533 Breeze's AI has serious flaws in open terrain
• MC-266589 Armor durability is changed when swapping on creative
• MC-266628 High polling rate causing stuttering
• MC-266680 The glowing outline isn't applied to the eyes or eyebrows of breezes
• MC-266685 The entity shadows of breezes are too large in relation to the size of their models
• MC-266688 Breeze model's glowing eyes are not resource pack-friendly
• MC-266738 Subtitles string "subtitles.block.trial_spawner.spawn_mob" is misleading and inconsistent
• MC-266879 Clouds, entity hitboxes, block outlines, specially rendered blocks, and enchantment glints, render through the insides of breezes' eyes and eyebrows
• MC-266960 Bossbar text renders in front of player list background and player icons
• MC-266990 Maps with the same 'map' tag value, but different 'display' tag data can cause markers to disappear
• MC-266999 Crafter's tooltip buttons can still be visible to players on spectator mode
• MC-267193 A function with /return fail run in chat doesn't indicate failure
• MC-267194 /return run function in combination with a fork and a function that doesn't return has inconsistent behavior

1.20.4

Minecraft 1.20.4 is a hotfix release for Java Edition which fixes a critical bug that could cause items to vanish after being stored in a Decorated Pot.

Happy Pot Smashing!

Fixed bugs in 1.20.4

• MC-267185: Decorated pots can delete items when reloading the world

1.20.4-rc1

We're releasing a Release Candidate for Minecraft 1.20.4. This Release Candidate fixes a critical issue found after the release of Minecraft 1.20.3

Fixed bugs in 1.20.4 Release Candidate 1

• MC-267185 Decorated pots can delete items when reloading the world

1.20.3

We're now releasing 1.20.3 for Minecraft: Java Edition. This release comes with new functionality for Decorated Pots, a new look for the Bat and improvements to Shields.

This release also includes new features for map makers and pack creators like Scoreboard Display Names and extensions for the execute and return commands and a new administrative tool: the tick command.

The optional Update 1.21 Experiment also shows up in this version as a sneak preview of features for the next major version of Minecraft.

Changes

• Decorated Pots can now store items, and can be smashed by projectiles
• When a player is blocking with a shield, the arm with the shield now follows the direction the player is looking at, when viewed from third-person perspective
• The Bat now has a new look
• Added an accessibility option that allows to hide the yellow splash texts in the main menu
• Added a recovery screen for worlds with missing data (for example, if saving failed due to an unexpected shutdown)
• Other minor tweaks

Decorated Pots

• Decorated Pots now store up to a single stack of items
• Hoppers, Droppers and Minecarts with Hoppers can now insert and/or extract items from Decorated Pots
• Comparators can now read the number of items in Decorated Pots
• Players can interact with Decorated Pots to insert items into them
• Decorated Pots have no GUI, and need to be broken to retrieve or discover their content by players
• Player interactions with Decorated Pots cause the Decorated Pot to wobble and trigger the vibration frequency of 11
• Decorated Pots can be smashed by projectiles which cause them to shatter and drop their content
• Decorated Pots now stack up to 64

Bat

• The Bat has an updated model, animations and texture

Minor Tweaks

• Monster Spawner now renders their inner faces when looking inside
• Thrown Ender Pearls produce a teleportation sound on impact
• Small tweaks to the Telemetry Data Collection screen

Technical Changes

• The Data Pack version is now 26
• The Resource Pack version is now 22
• A few minor changes to chat component serialization
• The name of non-living entities will now be shown if targeted and a CustomName is set, or always displayed if CustomNameVisible is set, similar to living entities
• Changes to downloaded/world resource pack handling

Chat Components

Serialization

• Plain-text chat components (text, no sibilings, no stylings) are now always serialized as strings instead of {"text': "blah"}
• Chat components now serialize to NBT when sent over network
• Chat components now have an optional type value (allowed values: text, translatable, score, nbt, keybind, selector) to speed up parsing and improve error checking
• Similarily, components of type nbt now have a source field with allowed values entity, block, storage
• The id field in show_entity hoverEvent style now also accepts UUIDs as an array of 4 ints
• Numeric and boolean arguments for translate components are no longer converted to strings
• The following JSON component representations are no longer accepted:
  • null
  • []
• Errors in the following style fields are no longer silently ignored:
  • color
  • clickEvent
  • hoverEvent
  • hoverEvent[action=show_entity].contents.name
  • hoverEvent[action=show_item].contents.tag

World Resource Packs

Changes have been made to world resource packs (resources.zip), Realms resource packs and resource packs controlled by dedicated servers.

User Interface

• The download screen has been replaced with a toast
• World resource pack application now starts together with chunk loading

Local Storage

Downloaded packs are now stored in the downloads directory (with a different file organization than the old server-resource-packs)

• Only up to 20 files are cached
• Inside this directory there is also log file (log.json) that stores information about downloaded files for debug purposes

Server Config

Downloaded packs now have a unique id (GUID/UUID) that can be used to differentiate them

• For dedicated server packs, this value can be configured with the resource-pack-id option in server.properties
• If the value is missing, it will be generated based on the pack URL
• If the hash of a pack is not set, this pack will be redownloaded before every application
  • Previously, if the hash was missing, the latest downloaded version of pack was applied

Packets

Some additional options have been added for 3rd-party servers software:

• The client can now accept multiple server resource packs
• A new packet was added to un-apply server resource packs
• The client now sends additional updates about packs (like download success)
• Resource packs are no longer cleaned when entering configuration phase

Data Pack Version 19

Tags

• Added can_breathe_under_water entity type tag which disables drowning
• Added can_break_armor_stand damage type tag for damage types that can incrementally knock down armor stands

Data Pack Version 20

• Changed function command results
• Adjusted check for gamerule maxCommandChainLength
• Added new gamerule maxCommandForkCount
• Reintroduced form of the execute command: execute if function
• Reintroduced form of the return command: return run
• Decorated Pots with the cracked state set to true will always shatter when broken
• Added new dust_plume particle type

Commands

Functions

(See further changes in Pack Version 23)

• The function command has been changed to better accomodate new return command
• Functions no longer have any result unless they use return or there was error during lookup or instantiation
  • That means the function command will no longer return (or even display) the number of commands run during execution
  • Error conditions:
    • Calling a non-existent function
    • Calling an empty function tag
    • Macro instantiation failures
• "Result" in this context means values that would be stored with execute store
• The previous behavior where every command in a function would perform a store if a function was called with execute store ... run function has been removed
  • A single call to function will now store at most once (zero times if return was not called)
  • For function tags with multiple entries, function results will be accumulated, but partial results will be stored at the end of every function

Limits

Existing limits for functions have been refined to accomodate new execution rules and prevent wider range of exploits:

• Limits now apply even for commands run from the server console or chat input (so it will now always behave as if they were placed in a function)
  • For example, all functions called by execute as @e run function will count towards the same limit
  • Executions from command blocks still count as separate ones
• The maxCommandChainLength limit for functions will now count "operations" like:
  • execution of command for a single context
  • execution of a stage in execute (no matter how many contexts were modified)
  • invocation of function
• A new limit with game rule called maxCommandForkCount now restricts the total amount of contexts that can be created by single state of functions like execute
  • For example: if there are 5 entities in world, execute as @e creates 5 contexts, while execute as @e at @e creates 5*5 = 25 contexts

execute if function

An execute sub-command that runs a function or function tag and matches the return value(s). This is a reintroduction of functionality removed in a previous version. If a tag is given, all functions run regardless of the results of prior functions.

Syntax: execute if|unless function <function> <continuation>

Parameters:

• function: The function or tag to run

Matching

The matching of the result value of the function(s) that run:

• At least one of the functions must succeed for the match to succeed
• A succeessful call is defined as a function that:
  • Uses the return command to return a value
  • The return value is not 0
• If no functions exited with return, neither if or unless will run

return run

A form of the return command is now available, return run. This is a reintroduction of functionality removed in a previous version.

Syntax: return run <command>

This takes the result value from running the specified command and returns that as the return value of the function.

• If the command did not return any value (like, for example, a call to a function without return), return will not execute and function will continue execution (changed in Data Pack Version 23)
• If the given command fails, the return value is 0
• In all other aspects, it works like return with a specified return value
• In case of a fork (for example return run execute as @e run some_command), the first execution of the command will return
  • If there are no executions (for example in return run execute if entity @e[something_impossible] run some_command), the function will not return and will continue execution (changed in Data Pack Version 23)

Data Pack Version 21

• Introduced Jigsaw structure pool aliases, which can be used to rewire pool selection
• Added field block_state to tnt entity to allow replacement of rendered block model
• Renamed field Fuse to fuse on tnt entity
• Added playersNetherPortalDefaultDelay and playersNetherPortalCreativeDelay game rules to control time (in ticks) that a player needs to stand in a Nether portal before changing dimensions
• Added new game rule projectilesCanBreakBlocks to control whether impact projectiles will destroy blocks that are destructible by them, i.e. Chorus Flowers, Pointed Dripstone and Decorated Pots
• Added white_smoke particle type

Jigsaw Pool Aliases

• 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"

Data Pack Version 22

• Added tick command
• Added two new input fields for Selection Priority and Placement Priority in the Jigsaw block edit screen
• Added item to minecraft:arrow and minecraft:spectral_arrow, this is the item that will be picked up
• Renamed Trident to item in minecraft:trident

tick Command

Added a new tick command. This is an adminstative and debugging command that allows control of the ticking flow and measuring the performance of the game. The command requires elevated permissions (admins and above) and so it is not by default available in command blocks and datapacks.

Syntax:

tick query - outputs the current target ticking rate, with information about the tick times performance.

tick rate <rate> - sets a custom target ticking rate to the specified value. The value must be greater than 1.0 and lower than 10000.0. Setting a very low tick rate can cause the game to feel unresponsive and setting too high tick rate for your system can cause the game to crash as the game now assumes it is constantly falling behind the ticking target. Please use tick query or <F3> + 2 (Integrated server only) debug screen to measure the performance of the game and adjust the tick rate accordingly. Setting a tick target lower than the default 20.0 will also cause the players to be simulated at a lower rate (including player movement and input controls), while setting a higher tick rate will cause the players to be simulated at the default rate of 20 ticks per second to maintain the expected responsiveness of the game, but can cause artifacts in entities interpolation.

tick freeze - freezes all gameplay elements, except for players and any entity a player is riding. This is useful for debugging and isolating issues with the game allowing the player to move around freely and inspect the world.

tick step [<time>] - Only works when the game is frozen. It runs the game for the specified number of ticks and then freezes the game again. This allows to step through the game a set amount of ticks at a time. If no time is given, steps 1 tick.

tick step stop - stops the current stepping process, and re-freezes the game.

tick unfreeze - unfreezes the game and resumes all gameplay elements.

tick sprint <time> - runs the game while ignoring the set ticking target rate (meaning that the game will run as fast as possible) for the specified number of ticks. At the end of the sprint, the game will resume the previous ticking target and display performance information about the tick times while sprinting. This is especially useful for testing gameplay elements that are time-dependent, such as Redstone contraptions, or mob behaviour in isolated environments that allow for much faster simulation.

tick sprint stop - stops the current tick sprint, and resumes the previous ticking target.

Jigsaw Selection & Placement Priority

• Selection Priority
  • When the parent piece is being processed for connections, this controls the order in which this Jigsaw block attempts to connect to its target piece
  • Jigsaws will be processed in descending priority order and randomly within the same priority
• Placement Priority
  • When this Jigsaw block connects to a piece, this is the order in which that piece is processed for connections in the wider structure
  • Pieces will be processed in descending priority order with the default insertion order breaking ties within the same priority
• This functionality has been added to support the ability for Jigsaw structures to generate branches in a depth-first order, as well as give finer control over ordering of connections
• All existing Jigsaw blocks will default their Selection and Placement Priority to 0, resulting in the same behaviour as before these two configurable values were introduced

Data Pack Version 23

• Decorated Pots can now utilize loot tables and will read from the LootTable tag key
• Additional changes to command functions

Commands

return

• return run will now always return
  • If there are no valid results from the returned command, the function containing the return run will fail (i.e. success=0 and result=0)
• return run will now propagate the success value together with the results value (previously it always set success to 1)
• return run now also allows storing values - that means execute store ... run return run some_command will both store the value and return it outside the function
• A new subcommand return fail has been added to make the whole function fail (i.e. return success=0 and result=0)

function

• If function <function tag> runs multiple functions in combination with return run, execution will stop after first return in any of the functions
• A single call to the function command will always return when run with return run
  • For example, return run execute [split context] run function <some function with conditional return> will always return after processing the first context

execute if|unless function

• execute if|unless function no longer always fails if none of the functions had a return
  • If there were no returns in called functions, if will fail and unless will pass
  • The first return in any of called functions will return (for a single context)

Data Pack Version 24

• Increased maximum value of Jigsaw structure variable size from 7 to 20

Data Pack Version 25

• Added individual display names for scoreboard entries
• Scoreboard sidebar will now render even when if there are no scores in selected objective

Commands

scoreboard

Display Names

Each entry in a scoreboard can now have a custom display name.

• These values are kept separate per objective and score holder
• If the name is not present, the score holder name is used (i.e. the old behavior)
• If the score is reset or the whole objective is removed, the name is not preserved
• Team decorations will still be applied to names as normal
• Subcommands for managing names:
  • scoreboard players display name <targets> <objective> <text component> - set display name
  • scoreboard players display name <targets> <objective> - clear display name

Display Name Auto-Update

To make display name management easier, objectives can also be configured to auto-update display names on every score update.

• This option is disabled by default
• If a score holder has no display name (because it can't be attributed to any currently loaded entity), the current name is preserved
• Command to control auto-update for objective:
  • scoreboard objectives modify <scoreboard> displayautoupdate [true|false]

Number Formatting

Scores in numeric form can now be formatted.

• Formats can be set for both objectives and individual scores
• Scores with set formats will render the same in all context (sidebar, under player name, etc.)
• Subcommands for managing formats:
  • scoreboard objectives modify <objective> numberformat <format> - set the default format for an objective
  • scoreboard objectives modify <objective> numberformat - clear the default format for an objective
  • scoreboard players display numberformat <targets> <score> <format> - set the format for a specific score holder
  • scoreboard players display numberformat <targets> <score> - clear the format for a specific score holder
• Formats:
  • styled <style> - the score will be displayed with selected style (like {"bold":true})
  • fixed <text component> - the score will be replaced with the text component
  • blank - the score will not be displayed

Data Pack Version 26

• Renamed minecraft:grass block and item to minecraft:short_grass

Resource Pack Version 19

• Added block model, item model and block state definitions for crafter
• Added GUI container texture and sprites for crafter
• Added white_smoke particle definition

Resource Pack Version 20

• bat.png has been updated for the new Bat model with new texture mapping
• Added block models, items models and block state definitions for the following blocks:
  • chiseled_copper, exposed_chiseled_copper, weathered_chiseled_copper, oxidized_chiseled_copper
  • copper_grate, expxosed_copper_grate, weathered_copper_grate, oxidized_copper_grate
  • copper_bulb, exposed_copper_bulb, weathered_copper_bulb, oxidized_copper_bulb
  • copper_door, exposed_copper_door, weathered_copper_door, oxidized_copper_door
  • copper_trapdoor, exposed_copper_trapdoor, weathered_copper_trapdoor, oxidized_copper_trapdoor
  • tuff_stairs
  • tuff_slab
  • tuff_wall
  • chiseled_tuff
  • polished_tuff
  • polished_tuff_stairs
  • polished_tuff_slab
  • polished_tuff_wall
  • tuff_bricks
  • tuff_brick_stairs
  • tuff_brick_slab
  • tuff_brick_wall
  • chiseled_tuff_bricks
• Added unique sprites for the following blocks:
  • chiseled_copper, exposed_chiseled_copper, weathered_chiseled_copper, oxidized_chiseled_copper
  • copper_grate, expxosed_copper_grate, weathered_copper_grate, oxidized_copper_grate
  • copper_bulb, exposed_copper_bulb, weathered_copper_bulb, oxidized_copper_bulb
  • copper_door, exposed_copper_door, weathered_copper_door, oxidized_copper_door
  • copper_trapdoor, exposed_copper_trapdoor, weathered_copper_trapdoor, oxidized_copper_trapdoor
  • chiseled_tuff
  • polished_tuff
  • tuff_bricks
  • chiseled_tuff_bricks

Resource Pack Version 21

• The uniform font has been updated to use Unifont 15.1.04 (from 15.0.06)
• The only supported texture format is now .png

Breeze Mob

• Added entity models and textures for experimental Breeze mob:
  • breeze, wind_charge
• Added shader:
  • breeze_wind

Resource Pack Version 22

• Renamed minecraft:grass block and item to minecraft:short_grass

Experimental Features

Crafter

• The Crafter is a new block that enables the crafting of items and blocks via Redstone
• The Crafter will eject one crafted item at a time when powered by a Redstone pulse
• Upon receiving a signal, the Crafter will eject the recipe result from the front face
• If the output result has multiple types of items, all the result items will be ejected together
• When placed, the front face of the Crafter will face towards the Player

Crafter User Interface

• The Crafter has a 3x3 interactable crafting grid
• The Crafter’s crafting grid slots are toggleable, meaning that the player can change the behavior of a slot by interacting with it while not holding an item
• A slot that is ‘toggled’ cannot hold any items
  • Other blocks such as Hoppers and Droppers also cannot place items into them
• Unlike the Crafting Table, the Crafter displays 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 Crafter User Interface is shared between all players interacting with it, meaning that multiple players can interact with the Crafter at the same time, similar to Chests and Hoppers

Crafter Interaction with Other Blocks

• The signal strength of a Comparator reading a Crafter is 0-9, where each non-empty or toggled slot adds 1 strength
• Hoppers and Minecarts with Hoppers can be used to both insert and extract items from the Crafter
• Droppers can be used to insert items into the Crafter
• Items inserted from another block (ex: Hopper, Dropper) will fill the Crafter's slots based on these rules:
  • Prioritize the first empty slot (from left-to-right, top-to-bottom)
  • If there are no empty slots then prioritize the smallest stack of the same item (pick the first if there are multiple)
  • If there is a toggled slot it will be skipped. The item will then be moved into the container
  • If the item cannot be moved, it will be ejected into the world
• Items are removed from Crafters by Hoppers and Minecarts with Hoppers in the same order as from other containers like Chests

Copper Family

The Copper family of blocks has been expanded, including:

• Chiseled Copper
• Copper Grate
• Copper Bulb
• Copper Door
• Copper Trapdoor
• Oxidized and waxed variants of all of the above

Chiseled Copper

• Crafted with 2 Cut Copper Slabs of a shared oxidation level
• Can be crafted in the Stonecutter

Copper Grate

• A new type of decorative block unique to the Copper family
• Crafted with 4 Copper Blocks of a shared oxidation level
  • Can be crafted in the Stonecutter
• Properties:
  • Transparent and allows light to pass through
  • Mobs cannot suffocate inside them
  • Cannot conduct Redstone
  • Hostile mobs cannot naturally spawn on them
  • Can hold Water

Copper Bulb

• A light-emitting block that can toggle its light emission through Redstone pulses
• Oxidizes like other Copper blocks, and emits light based on oxidation level
  • Copper Bulb: Light level 15
  • Exposed Copper Bulb: Light level 12
  • Weathered Copper Bulb: Light level 8
  • Oxidized Copper Bulb: Light level 4
• When placed, its light is off by default
  • While the Copper Bulb is unpowered, it will toggle its light on or off when it receives a Redstone pulse
  • Copper Bulb light will stay on even when the Redstone source is removed until it receives another Redstone pulse to toggle it off
• A Redstone crystal will glow in the center of Copper Bulbs while it is powered by a Redstone signal
• Comparators will read a signal strength of 15 if the Copper Bulb's light is on
• Copper Bulbs do not conduct Redstone power
• The crafting recipe for 4 Copper Bulbs is:
  • 3 Copper Blocks of a shared oxidation level
  • 1 Blaze Rod
  • 1 Redstone Dust

Copper Doors and Trapdoors

• Copper variants of Doors and Trapdoors that can oxidize over time and be waxed
• Works like wooden doors in that they can be opened and closed with interaction, as well as Redstone
• Crafted with Copper Blocks that have a shared oxidation level

Tuff Family

Tuff has been expanded to have its own family of blocks, including:

• Stair, Slab, Wall and Chiseled variants
• Tuff Bricks with Stair, Slab, Wall and Chiseled variants
• Polished Tuff with Stair, Slab and Wall variants

All Tuff variants can be crafted in the Stonecutter.

Added Breeze Mob

• The Breeze is a cunning hostile mob spawned by the Trial Spawner in some rooms within the Trial Chambers
• The Breeze moves primarily by leaping around its target
• An aggressive adversary, the Breeze shoots volatile wind energy in the form of Wind Charge projectiles at its target
• Wind Charges deal a small amount of damage when colliding directly with an entity
• After colliding with an entity or a block, Wind Charge projectiles produce a Wind Burst, which knocks back entities in the area
• Wind Charges break decorated pots and chorus flower blocks upon collision
• Wind Bursts also have the effect of 'activating' certain blocks:
  • Non-Iron Doors and Trapdoors are flipped
  • Fence Gates are flipped
  • Buttons are pressed
  • Levers are flipped
  • Bells are rung and swung
  • Lit Candles are extinguished
• Wind Bursts do not have any effect on Iron Doors, Iron Trapdoors, or any block being held in its position by a Redstone signal

Trial Spawner

• The Trial Spawner is a new variant of Monster Spawners that ejects rewards upon completion
• The challenge level will increase for each new player a Trial Spawner notices nearby
  • The challenge level will not decrease until it is reset during a Trial Spawner's cooldown
• Unlike normal Spawners, a Trial Spawner will spawn a limited number of mobs proportional to its current challenge level
  • It can only spawn a mob at positions that are within line of sight
  • It can spawn a mob regardless of any light level requirement the mob has
  • Spawned mobs are persistent
• Once all mobs are defeated, the Trial Spawner will eject a set of rewards proportional to the current challenge level
  • After the rewards have been ejected, the Trial Spawner goes into cooldown for 30 minutes, during which it will no longer spawn mobs
• Trial Spawners cannot be crafted nor obtained by players in Survival - instead, they can be found naturally placed throughout Trial Chambers
• Trial Spawners are extremely slow to mine and resistant to explosions, and will not drop even with Silk Touch
• When placed in Creative, Trial Spawners have no mob type set by default
  • The mob type can be set by interacting with it while holding a Spawn Egg
• Creative and Spectator players cannot be detected or noticed by Trial Spawners

Trial Chambers

• Trial Chambers are a new structure in the Overworld where players can explore and take on combat challenges
  • Trial Chambers are made out of a variety of Copper and Tuff blocks, and can be found in different sizes
  • Trial Chambers are a relatively common find throughout the Deepslate layer of the underground
• The layout of each Trial Chamber is procedurally generated, and can include traps, Reward Chests and a variety of combat areas
  • Supply Chests can be found between different rooms, and give you blocks and items which help you navigate your trials
  • Reward Chests are guarded by challenges in each room, and can be a source of many high level enchanted books and equipment
  • The loot found in Reward Chests are still being iterated, and are absolutely not final
• Each Trial Chamber will include Trial Spawners with a melee, small melee, or ranged category:
  • Melee
    • Zombie
    • Husk
    • Slime
  • Small Melee
    • Spider
    • Cave Spider
    • Baby Zombie
    • Silverfish
  • Ranged
    • Skeleton
    • Stray
    • Skeleton with Poison Tipped Arrows
• Each Trial Spawner category will only use one mob for the entire structure when generated, and these mobs are randomized for each Trial Chamber
  • For example, one Trial Chamber might only spawn Zombies, Cave Spiders and Strays, while another might only spawn Slimes, Silverfish and Skeletons
  • The exceptions to this are some Trial Spawners in unique rooms which always spawn Breezes
• Natural mob spawning does not occur within Trial Chambers

Known Issues

• The corridors sometimes end with a dead end
• Aquifers, Lush Caves, and Sculk Veins sometimes intersect with the Trial Chamber

Trial Key

• An item that can only be obtained from Trial Spawners
• Trial Keys do not currently have any functionality

Fixed bugs in 1.20.3

Around 85 bugs were fixed in this release. View the list on the issue tracker.

1.20.3-rc1

We're now releasing the first (and hopefully last) release candidate for 1.20.3. Unless something critical pops up, no further changes will be made for the full release, which is planned for next week.

Happy Mining!

Fixed bugs in 1.20.3 Release Candidate 1

• MC-266537 Disparity between the read/write logic of the explosion packet

1.20.3-pre4

We're now releasing Pre-release 4 for 1.20.3 with a few more bug fixes.

Happy mining!

Fixed bugs in 1.20.3 Pre-Release 4

• MC-266968 /return executed within an advancement reward function globally discards all subsequent commands
• MC-267062 Server list ping icon doesn't display tooltip

1.20.3-pre3

We are now releasing the third Pre-Release for Minecraft 1.20.3, containing mostly bug fixes, as well as changes to server resource pack handling.

Happy Mining!

Technical Changes

World resource packs

Local storage

• Only up to 20 server resource packs are cached

Packets

• Client now sends additional updates about packs (like download success)

Fixed bugs in 1.20.3 Pre-Release 3

• MC-265908 Pool aliases don't redirect start pool
• MC-266060 The word "ignored" is misspelled as "ingored" within the "commands.tick.query.rate.sprinting" string
• MC-266115 Inconsistent Copper Door block drops when broken with tools weaker than stone
• MC-266144 Copper Doors are not part of the #doors item tag
• MC-266145 Copper Trapdoors are not part of the #trapdoors item tag
• MC-266189 Freezing the game during pick-up animation desyncs item position
• MC-266210 Dragon respawn is unable to be frozen with /tick freeze
• MC-266335 Copper Doors/Trapdoors have wrong Blast Resistance
• MC-266903 Incorrect part of copper door texture
• MC-266920 Server Resource Packs Setting disabled no longer overridden by require-resource-pack
• MC-266948 You can run "/summon wind_charge" without enabling the 1.21 datapack

1.20.3-pre2

Hello again! The stabilization phase for 1.20.3 release continues. This Pre-Release brings more bug fixes.

Changes

• Breeze wind charges now break decorated pots, chorus flowers, and pointed dripstone blocks upon collision

Fixed bugs in 1.20.3 Pre-Release 2

• MC-265291 Command suggestions within the command block interface don't disappear when the console command field is unselected
• MC-265426 Certain inputs pressed whilst in F3+Esc Pause will be carried out after game is unpaused
• MC-265772 A command with multiple redirect modifiers can ignore "maxCommandChainLength"
• MC-265788 The "Start free Snapshot Realm" element can be selected or remain selected causing its tooltip to erroneously be visible when other interfaces are open
• MC-266075 "Player teleports" not shown in subtitles when an ender pearl lands far from the thrower
• MC-266206 Renamed arrows are reffered as just "Arrow" in the death message
• MC-266380 Rain texture doesn't loop correctly
• MC-266439 Decorated pots with loot table desync item consumption if it cannot be inserted in the pot
• MC-266496 Wind Charge can not break Decorated Pots
• MC-266516 Arrows on fire set breezes on fire, despite being deflected
• MC-266728 The "styled" number format uses the resource location "result"
• MC-266886 Backspace in Anvil no longer works when renaming an item
• MC-266890 The minecraft:grass item does not get upgraded to minecraft:short_grass

1.20.3-pre1

We're bringing you the first Pre-Release of 1.20.3 with updates to server resource pack handling and bug fixes!

Technical Changes

• The Data Pack version is now 26
• The Resource Pack version is now 22
• Changes to downloaded/world resource pack handling

World resource packs

Changes apply to world resource packs (resources.zip), Realms resource packs and resource packs controlled by dedicated servers.

UI

• Download screen has been replaced with a toast
• World resource pack application will start together with chunk loading

Local storage

Downloaded packs are now stored in downloads directory (with different file organization than old server-resource-packs)

• Files in this directory are no longer automatically cleaned (previously only up 10 packs were kept)
• Additionally, inside this directory there is also log file log.json that stores information about downloaded files for debug purposes

Server config

Downloaded packs now have unique id (GUID/UUID) that can be used to differentiate them

• This value for dedicated server pack can be configured with resource-pack-id option in server.properties
• If the value is missing, it will be generated based on URL
• If hash of a pack is not set, this pack will be redownloaded before every application
  • Previously, if hash was missing, latest downloaded version of pack was applied

Packets

Some additional options are added for 3rd-party servers software:

• Client can now accept multiple server resource packs
• New packet was added to un-apply server resource packs
• Resource packs are no longer cleaned when entering configuration phase

Data Pack Version 26

• Renamed minecraft:grass block and item to minecraft:short_grass

Resource Pack Version 22

• Renamed minecraft:grass block and item to minecraft:short_grass

Fixed bugs in 1.20.3 Pre-Release 1

• MC-142160 pausedTickDelta updated when the game is unpaused rather than paused
• MC-164316 Resource pack update by a hash doesn't work
• MC-251126 Server resource pack is not redownloaded when a hash mismatch is detected with the previously downloaded version
• MC-265927 Edit box length restrictions can result in unpaired surrogate characters
• MC-265929 Ctrl+Backspacing a word with non-BMP characters in an edit box deletes additional characters
• MC-266456 Breezes in minecarts or boats are passive
• MC-266468 Breeze cannot attack in deep water
• MC-266472 Charged creeper / wither armor is rendered incorrectly
• MC-266507 Number of block drops from TNT explosions is capped to 16
• MC-266563 End Crystals and TNT Minecarts that explode without a source entity deal no damage at all
• MC-266571 Breezes won't attack while under the effects of levitation status
• MC-266656 The interpolation of particle, entity and block entity transforms is disrupted when pausing the game in singleplayer
• MC-266723 Monsters Hunted advancement requires killing a Breeze even when they're disabled
• MC-266724 scoreboard players reset no longer works
• MC-266729 Unformatted objects in scoreboard error messages

23w46a

This snapshot brings about a few redstone-focused changes. Notably, we’re tweaking the tick delay behavior of the crafter and the copper bulb while they’re still in experimental development.

With these changes, we aim to make the crafter more consistent with other blocks that drop or eject items, and the copper bulb with other blocks that react or change state when a connected redstone signal changes. As a result of this, some contraptions built during the last few snapshots may no longer work properly.

We're really excited about the tinkering opportunities both these new redstone blocks bring to the world. Please keep sending all your thoughts about them to Minecraft Feedback so we can keep building Minecraft together!

Enjoy!

Changes

• Updated Crafter textures

Technical Changes

• The Data Pack version is now 25

Data Pack Version 25

• Added individual display names for scoreboard entries

Commands

scoreboard

Display names

• Each entry in a scoreboard can now have a custom display name
• Those values are kept separate per objective and score holder
• If the name is not present, the score holder name is used (i.e. the old behavior)
• If the score is reset or the whole objective is removed, the name is not preserved
• Team decorations will still be applied to names as normal
• Subcommands for managing names:
  • scoreboard players display name <targets> <objective> <text component> - set display name
  • scoreboard players display name <targets> <objective> - clear display name

Display name auto-update

• To make display name management easier, objectives can also be configured to auto-update display names on every score update
• This option is disabled by default
• If a score holder has no display name (because it can't be attributed to any currently loaded entity), the current name is preserved
• Command to control auto-update for objective:
  • scoreboard objectives modify <scoreboard> displayautoupdate [true|false]

Number formatting

• Scores in numeric form can now be formatted
• Formats can be set for both objectives and individual scores
• Scores with set formats will render the same in all context (sidebar, under player name, etc.)
• Subcommands for managing formats:
  • scoreboard objectives modify <objective> numberformat <format> - for setting default format for an objective
  • scoreboard objectives modify <objective> numberformat - for clearing default format for an objective
  • scoreboard players display numberformat <targets> <score> <format> - for setting format for a specific score holder
  • scoreboard players display numberformat <targets> <score> - for clearing format for a specific score holder

Formats:

• styled <style> - score will be displayed with selected style (like {"bold":true})
• fixed <text component> - score will be replaced with text
• blank - score will not be displayed

Fixed bugs in Snapshot 23w46a

• MC-259321 Spawner counts related entities against MaxNearbyEntities
• MC-265662 "Cannot kick server owner in LAN game" message when trying to kick yourself from non-LAN singleplayer world
• MC-265873 Narrator Hotkey description mentions the wrong modifier key on macOS
• MC-265910 Crafter block has a one game tick cooldown
• MC-265950 Crafters will stack items when outputting into chiseled bookshelf
• MC-266076 Copper Grates can't be waterlogged
• MC-266099 Spectating an entity that takes damage makes the camera shake
• MC-266120 Some advancements for 1.21 block recipes are in the regular datapack
• MC-266148 Some Crafting recipes for the new copper blocks appear when Experiment is disabled
• MC-266190 Tuff blockset color palette is inconsistent with itself
• MC-266437 Wind charge subtitles are improperly capitalized
• MC-266445 Breeze mob doesn't count to Monster Hunter
• MC-266455 Breeze spawn eggs are in the incorrect place in the creative inventory
• MC-266459 The hitboxes and models of wind charges are misaligned
• MC-266538 Trial spawners can be replaced by lava pools and other features
• MC-266622 Wind Charges can't switch levers off

23w45a

We're happy to share another snapshot, this time offering an early look at some exciting new adventures waiting for you underground in the form of Trial Chambers!

Trial Chambers are designed to be challenging moments of combat and exploration hidden medium-deep below the surface of the Overworld. Trial Chambers bring new decorative and lighting blocks, new Trial Spawners to deliver a different style of multi-mob fights, and the bushy-browed Breeze, a new mob specific to Trial Chambers which will add quite a bit of chaos to your combats.

Happy Mining!

Changes

• Monster Spawner now renders their inner faces when looking inside

Technical Changes

• The Data Pack version is now 24
• The Resource Pack version is now 21

Data Pack Version 24

• Added experimental Breeze mob
• Added experimental Trial Spawner block
• Increased maximum value of Jigsaw structure variable size from 7 to 20
• Added trial_chambers_copper_bulb_degradation structure processor list

Resource Pack Version 21

• uniform font has been updated to use Unifont 15.1.04 (from 15.0.06)
• The only supported texture format is now .png

Breeze Mob

• Added entity models and textures for experimental Breeze mob:
  • breeze, wind_charge
• Added shader:
  • breeze_wind

Experimental Features

Added Breeze mob

• The Breeze is a cunning, hostile mob that can spawn via Trial Spawner in some rooms within the Trial Chambers
• The Breeze moves primarily by leaping around the target, sometimes jumping quite long distances
• An aggressive adversary, the Breeze shoots volatile wind energy in the form of wind charge projectiles at its target
• Wind charges deal a small amount of damage when colliding directly with an entity
• After colliding with an entity or a block, wind charge projectiles produce a wind burst, which knocks back entities in the area by several blocks
• Wind bursts also have the effect of 'activating' certain blocks:
  • Non-Iron Doors and Trapdoors are flipped
  • Fence Gates are flipped
  • Buttons are pressed
  • Levers are flipped
  • Bells are rung and swung
  • Lit Candles (both standalone and on cake) are extinguished
• Wind bursts do not have any effect on Iron Doors, Iron Trapdoors, or any block being held in its position by a Redstone signal

Trial Spawner

• Trial Spawner is a new variant of Monster Spawners that ejects rewards upon completion and can have variable levels of challenge in multiplayer
• The challenge level will increase for each new player a Trial Spawner notices nearby
  • Challenge level will not decrease until it is reset during a Trial Spawner's cooldown
• Unlike normal spawners, a Trial Spawner will spawn a limited number of mobs proportional to its current challenge level
  • It can only spawn a mob at positions that are within line of sight
  • It can spawn a mob regardless of any light level requirement the mob has
  • Spawned mobs are persistent
• Once all mobs are defeated, the Trial Spawner will eject a set of rewards proportional to the current challenge level
  • After the rewards have been ejected, the Trial Spawner goes into cooldown for 30 minutes during which it will no longer spawn mobs
• Trial Spawners cannot be crafted nor obtained by players in Survival - instead, they can be found naturally placed throughout Trial Chambers
• Trial Spawners are extremely slow to mine and resistant to explosions, and will not drop even with Silk Touch
• When placed in Creative, Trial Spawners have no mob type set by default
  • The mob type can be set by interacting with it while holding a Spawn Egg
• Creative and Spectator players cannot be detected or noticed by Trial Spawners

Trial Chambers

• Trial Chambers are a new structure in the Overworld where players can explore and take on combat challenges during the mid-game
  • Trial Chambers are made out of a variety of Copper and Tuff blocks and can be found in different sizes from large to small
  • Trial Chambers are a relatively common find throughout the Deepslate layer of the underground
• The layout of each Trial Chamber is procedurally generated, and can include traps, reward chests and a variety of combat spaces
  • Supply chests can be found between different rooms, and give you blocks and items which help you navigate your trials
  • Reward chests are guarded by challenges in each room, and can be a source of many high level enchanted books and equipment
  • The loot found in reward chests are still being iterated, and are absolutely not final
• Each Trial Chamber will include Trial Spawners with a melee, small melee, or ranged category:
  • Melee
    • Zombie
    • Husk
    • Slime
  • Small Melee
    • Spider
    • Cave Spider
    • Baby Zombie
    • Silverfish
  • Ranged
    • Skeleton
    • Stray
    • Skeleton with Poison Tipped Arrows
• Each Trial Spawner category will only use one mob for the entire structure when generated, and these mobs are randomized for each Trial Chamber
  • For example, one Trial Chamber might only spawn Zombies, Cave Spiders and Strays, while another might only spawn Slimes, Silverfish and Skeletons
  • The exceptions to this are some Trial Spawners in unique rooms which always spawn Breezes

Known issues

• The corridors sometimes end with a dead end
• Aquifers, Lush Caves, and Sculk Veins sometimes intersect with the Trial Chamber

Trial Key

• An item that can only be obtained from Trial Spawners
• Trial Keys do not currently have any functionality

Fixed bugs in Snapshot 23w45a

• MC-131646 Drowned spawners only work in biomes where drowned spawn
• MC-177446 "RootVehicle" tag in playerdata entry is not upgraded
• MC-186797 Functioning clock and compasses in crafting output slot
• MC-255244 NBT link/reference when using /fill
• MC-265702 Text components in commands accept malformed JSON
• MC-265747 Punching a TNT Minecart in creative mode drops the minecart
• MC-265875 Compasses, Clocks and Recovery Compasses work normally within the output slot of the crafter
• MC-266054 Side Water texture on Copper bulbs
• MC-266056 Mobs suffocate inside most copper grate block variants
• MC-266063 Copper Doors and Trapdoors make generic metal sounds when placing
• MC-266090 Light can pass through copper bulbs
• MC-266091 Copper Bulbs do not cull faces correctly
• MC-266096 Mobs can spawn on oxidized or waxed copper grates
• MC-266248 No error message when granting/revoking an advancement that is already granted/revoked
• MC-266256 Accessibility button in the Welcome screen still needs its own string
• MC-266287 Can't load .dat and .nbt files (server list & saved hotbar)
• MC-266289 Could not save data raids.dat and random_sequences.dat

23w44a

In this week's Snapshot we're taking a break from new features to improve ones we've already added, including fixes to Commands and the ability to use Loot Tables with Decorated Pots.

Changes

• Copper Doors & Copper Trapdoors has updated textures

Technical Changes

• The Data Pack version is now 23

Data Pack Version 23

• Decorated Pots can now utilize loot tables and will read from the LootTable tag key
• Additional changes to command functions

Commands

tick

• The <time> parameter in the tick step command is now optional. The default value is 1

return

• return run will now always return
  • If there are no valid results from returned command, function containing return run will fail (i.e. success=0 and result=0)
• return run will now propagate success value together with results value (previously it always set success to 1)
• return run now also allows storing values - that means execute store ... run return run some_command will both store value and return it outside function
• New subcommand return fail is added to make whole function fail (i.e. return success=0 and result=0)

function

• If function <function tag> runs multiple functions in combination with return run, execution will stop after first return in any of the functions
• A single call to the function command will always have return when run with return run
  • For example, return run execute [split context] run function <some function with conditional return> will always return after processing the first context

execute if|unless function

• execute if|unless function will no longer always fail if all functions had no return
  • If there were no returns in called functions, if will fail and unless will pass
  • First return in any of called functions will return (for a single context)

Fixed bugs in Snapshot 23w44a

• MC-219293 When teleporting via Chorus Fruit, the burping and teleporting sounds play at the wrong location
• MC-265805 Executing a tail-recursive function consumes memory resources linearly with recursion depth
• MC-266052 Subtitles for turning copper bulb on or off display raw translation string
• MC-266053 Subtitles for opening or closing a copper trapdoor display raw translation string
• MC-266064 Footsteps on Polished Tuff create missing subtitle
• MC-266084 Top of copper doors include an open part of the window
• MC-266086 Tuff bricks do not properly align with other bricks
• MC-266105 Bat head upside down when spawned while ticks are frozen
• MC-266112 New Bat's ears are lower than the official render and Bedrock's
• MC-266117 Chiseled copper cannot be stonecut from cut copper blocks
• MC-266147 Copper Door item texture is inconsistent with the block
• MC-266197 The "Transfer Now" button in the realms menu cannot be selected via keyboard navigation
• MC-266215 The pivot point of the head of the new bats is different from that of Bedrock's

23w43b

We're now releasing a second snapshot for the week to fix some crashes.

Bug Fixes

• Fixed a crash on server startup
• Fixed a crash when leaving the "Configure Realm" screen

23w43a

In this week's snapshot we're extending the Update 1.21 experiment with ALL the new blocks! And how about a bat makeover just in time for spooky fall? Happy crafting!

Experimental Features

Copper Family

• The Copper family of blocks has been expanded, including:
  • Chiseled Copper
  • Copper Grate
  • Copper Bulb
  • Copper Door
  • Copper Trapdoor
  • Oxidized and waxed variants of all of the above

Chiseled Copper

• Crafted with 2 Cut Copper Slabs of a shared oxidation level
• Can be crafted in the Stonecutter

Copper Grate

• A new type of decorative block unique to the Copper family
• Crafted with 4 Copper Blocks of a shared oxidation level
  • Can be crafted in the Stonecutter
• Properties:
  • Transparent and allows light to pass through
  • Mobs cannot suffocate inside them
  • Cannot conduct redstone
  • Hostile mobs cannot naturally spawn on them

Copper Bulb

• A light-emitting block that can toggle its light emission through redstone pulses
• Oxidizes like other Copper blocks, and emits less light the more oxidized they are
  • Copper Bulb: Light level 15
  • Exposed Copper Bulb: Light level 12
  • Weathered Copper Bulb: Light level 8
  • Oxidized Copper Bulb: Light level 4
• When placed, its light is off by default
  • While the Copper Bulb is unpowered, it will toggle its light on or off when it receives a redstone pulse
  • Copper Bulb light will stay on even when the redstone source is removed until it receives another redstone pulse to toggle it off
• A redstone crystal will glow in the center of Copper Bulbs while it is powered by a redstone signal
• Comparators will read a signal strength of 15 if the Copper Bulb's light is on
• Does not conduct redstone power
• Can craft 4 Copper Bulbs with:
  • 3 Copper Blocks of a shared oxidation level
  • 1 Blaze Rod
  • 1 Redstone Dust

Copper Doors and Trapdoors

• Copper variants of Doors and Trapdoors that can oxidize over time and be waxed
• Works like wooden doors in that they can be opened and closed with interaction as well as redstone
• Crafted with Copper Blocks of a shared oxidation level

Tuff Family

• Tuff has been expanded to have its own family of blocks, including:
  • Stair, Slab, Wall and Chiseled variants
  • Tuff Bricks with Stair, Slab, Wall and Chiseled variants
  • Polished Tuff with Stair, Slab and Wall variants
• All Tuff variants can be crafted in the Stonecutter

Changes

• The Bat now has a new look
• Thrown Ender Pearls produce a teleportation sound on impact
• Small tweaks to the Telemetry Data Collection screen

Bat

• The Bat has an updated model, animations and texture

Technical Changes

• The Data Pack version is now 22
• The Resource Pack version is now 20

Data Pack Version 22

• Added tick command
• Added two new input fields for Selection Priority and Placement Priority in the Jigsaw block edit screen
• Added item to minecraft:arrow and minecraft:spectral_arrow, this is the item that will be picked up
• Renamed Trident to item in minecraft:trident

tick command

Added a new tick command. This is an adminstative and debugging command that allows to control the ticking flow and measure the performance of the game. The command requires elevated permissions (admins and above) and so it is not by default available in command blocks and datapacks.

Syntax:

tick query - outputs the current target ticking rate, with information about the tick times performance.

tick rate <rate> - sets a custom target ticking rate to the specified value. The value must be greater than 1.0 and lower than 10000.0. Setting a very low tick rate can cause the game to feel unresponsive and setting too high tick rate for your system can cause the game to crash as the game now assumes, it is constantly falling behind the ticking target. Please use tick query or <F3> + 2 (Integrated server only) debug screen to measure the performance of the game and adjust the tick rate accordingly. Setting a tick target lower than the default 20.0 will also cause the players to be simulated at a lower rate (including player movement and input controls), while setting a higher tick rate will cause the players to be simulated at the default rate of 20 ticks per second to maintain the expected responsiveness of the game, but can cause artifacts in entities interpolation.

tick freeze - freezes all gameplay elements, except for players and any entity a player is riding. This is useful for debugging and isolating issues with the game allowing the player to move around freely and inspect the world.

tick step <time> - Only works when the game is frozen. It runs the game for the specified number of ticks and then freezes the game again. This allows to step through the game a set amount of ticks at a time.

tick step stop - stops the current stepping process, and re-freezes the game.

tick unfreeze - unfreezes the game and resumes all gameplay elements.

tick sprint <time> - runs the game while ignoring the set ticking target rate (meaning that the game will run as fast as possible) for the specified number of ticks. At the end of the sprint, the game will resume the previous ticking target and display performance information about the tick times while sprinting. This is especially useful for testing gameplay elements that are time dependent, such as redstone contraptions, or mob behaviour in isolated environments that allow for much faster simulation.

tick sprint stop - stops the current tick sprint, and resumes the previous ticking target.

Jigsaw Selection & Placement Priority

• Selection Priority
  • When the parent piece is being processed for connections, this controls the order in which this Jigsaw block attempts to connect to its target piece
  • Jigsaws will be processed in descending priority order and randomly within the same priority
• Placement Priority
  • When this Jigsaw block connects to a piece, this is the order in which that piece is processed for connections in the wider structure
  • Pieces will be processed in descending priority order with the default insertion order breaking ties within the same priority
• This functionality has been added to support the ability for Jigsaw structures to generate branches in a depth-first order, as well as give finer control over ordering of connections
• All existing Jigsaw blocks will default their Selection and Placement Priority to 0, resulting in the same behaviour as before these two configurable values were introduced

Resource Pack Version 20

• bat.png has been updated for the new Bat model
• Added block models, items models and block state definitions for the following blocks:
  • chiseled_copper, exposed_chiseled_copper, weathered_chiseled_copper, oxidized_chiseled_copper
  • copper_grate, expxosed_copper_grate, weathered_copper_grate, oxidized_copper_grate
  • copper_bulb, exposed_copper_bulb, weathered_copper_bulb, oxidized_copper_bulb
  • copper_door, exposed_copper_door, weathered_copper_door, oxidized_copper_door
  • copper_trapdoor, exposed_copper_trapdoor, weathered_copper_trapdoor, oxidized_copper_trapdoor
  • tuff_stairs
  • tuff_slab
  • tuff_wall
  • chiseled_tuff
  • polished_tuff
  • polished_tuff_stairs
  • polished_tuff_slab
  • polished_tuff_wall
  • tuff_bricks
  • tuff_brick_stairs
  • tuff_brick_slab
  • tuff_brick_wall
  • chiseled_tuff_bricks
• Added unique sprites for the following blocks:
  • chiseled_copper, exposed_chiseled_copper, weathered_chiseled_copper, oxidized_chiseled_copper
  • copper_grate, expxosed_copper_grate, weathered_copper_grate, oxidized_copper_grate
  • copper_bulb, exposed_copper_bulb, weathered_copper_bulb, oxidized_copper_bulb
  • copper_door, exposed_copper_door, weathered_copper_door, oxidized_copper_door
  • copper_trapdoor, exposed_copper_trapdoor, weathered_copper_trapdoor, oxidized_copper_trapdoor
  • chiseled_tuff
  • polished_tuff
  • tuff_bricks
  • chiseled_tuff_bricks

Fixed bugs in Snapshot 23w43a

• MC-1981 All arrow types lose their name/NBT data when shot and picked up
• MC-257786 The game takes a long time to process players leaving realms groups or accepting or declining realms invitations
• MC-263263 The operator buttons intersect the scroll bar within the realms player menu
• MC-263272 You cannot click on an area to set a value within the spawn protection slider in the realms world options menu
• MC-263309 You can configure your realm before it has been created by using the TAB key
• MC-265872 The word "available" is misspelled as "availible" within the "recover_world.no_fallback" string
• MC-265874 Right-clicking and keyboard input can disable or enable slots in the crafter
• MC-265880 The subtitle for Crafters crafting something uses inconsistent tense
• MC-265884 The word "occurred" is misspelled as "occured" within the "recover_world.message" string
• MC-265885 Extra space in the word "cannot" in selectWorld.incompatible.description
• MC-265886 The built-in update_1_21 pack contains duplicate files from the vanilla pack
• MC-265891 Placing items into the crafter output slot deletes them
• MC-265896 Additional lines appear on the crafter's face when it crafts
• MC-265899 The translation for "gamerule.commandModificationBlockLimit" is in title case instead of sentence case
• MC-265901 Comparator sometimes doesn't update when crafting with the Crafter
• MC-265938 Elements within the list in the "Changes From Last Backup" realms menu cannot be selected via the mouse cursor
• MC-265939 The "No pending invites!" text within the realms invitation menu cannot be narrated or selected
• MC-265961 Inconsistent pixels near light on the crafter's side

23w42a

Hey! Today we bring you the first of the features we've shown you during Minecraft Live last weekend: the Crafter!

Experimental Features

Crafter

• The Crafter is a new block that enables the crafting of items and blocks via Redstone
• The Crafter will eject one crafted item at a time when powered by a new Redstone signal / pulse (not a continuous signal)
• Upon receiving this new signal, the Crafter will eject the recipe result from the front face
• If the output result has multiple type of items all the result items will be ejected together
• The Crafter can be oriented in any direction when placed

Crafter UI

• The Crafter has a 3x3 interactable crafting grid
• The Crafter’s 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 slot that is ‘toggled’ cannot hold any items, and therefore cannot have items placed into it by other blocks, such as Hoppers and Droppers
• Unlike the Crafting Table, the Crafter displays 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 Crafter UI is shared between all players interacting with the Crafter, meaning that multiple players can interact with the Crafter at the same time, similar to Chests and Hoppers

Crafter interaction with other blocks

• The Comparator signal strength is 0-9, where each non-empty or toggled slot adds 1 strength
• Hoppers can be used to both insert and pull out items from the Crafter
• Droppers can be used to insert items into the Crafter
• Moving items in from another block (ex: Hopper, Dropper) prioritizes filling items into slots following these rules:
  • Prioritize the first empty slot (from left-to-right, top-to-bottom)
  • If there are no empty slots then prioritize the smallest stack of the same item (pick the first if there are multiple)
  • If there is a toggled slot it will be skipped. The item will then be moved into the container
  • If the item cannot be moved, it will be ejected into the world

We want to hear your feedback on the Crafter, so please let us know what you think the over in our dedicated feedback thread.

Changes

• Added an accessibility option that allows to hide the yellow splash texts in the main menu
• Added a recovery screen for worlds with missing data (for example, if saving failed due to an unexpected shutdown)

Technical Changes

• The Data Pack version is now 21
• The Resource Pack version is now 19
• Minor changes to chat component serialization

Chat components

Serialization

• The optional type field has a new allowed value: selector
• Components of type nbt now have source field with allowed values entity, block, storage

Data Pack Version 21

• Introduced Jigsaw structure pool aliases, which can be used to rewire pool selection
• Added field block_state to tnt entity to allow replacement of rendered block model
• Renamed field Fuse to fuse on tnt entity
• Added playersNetherPortalDefaultDelay and playersNetherPortalCreativeDelay gamerules to control time (in ticks) that a player needs to stand in a Nether portal before changing dimensions
• Added new gamerule projectilesCanBreakBlocks to control whether impact projectiles will destroy blocks that are destructible by them, i.e. Chorus Flowers, Pointed Dripstone and Decorated Pots
• Added white_smoke particle type

Jigsaw pool aliases

• 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"

Resource Pack Version 19

• Added block model, item model and block state definitions for crafter
• Added GUI container texture and sprites for crafter
• Added white_smoke particle definition

Fixed bugs in Snapshot 23w34a

• MC-189261 Various Realms buttons and texts are incorrectly capitalized
• MC-223774 Firework Rockets can't be used to break Chorus Flowers
• MC-232719 The scroll bar within the singleplayer menu doesn't reset its position to the top of the list when searching for worlds
• MC-234483 Some strange pixels can be seen on the left side of world slot frames within several realms menus
• MC-262888 Clicking "I know what I'm doing!" on the world loading screen when loading a world in a new snapshot is way too loud
• MC-264966 "Signature is missing from Property textures" appears in the logs of some Minecraft worlds due to player heads
• MC-265515 The "You don't seem to have a Realm" element in the realms menu cannot be selected via the mouse cursor
• MC-265517 The "Buy a realm!" button is automatically selected when opening the "Add Realm" interface
• MC-265551 "No pending invites!" tooltip in Realms is now untranslatable
• MC-265744 Kick during login causes client error
• MC-265745 You can’t break decorated pots with fireworks launched from crossbow
• MC-265751 Decorated pot subtitles are inconsistent
• MC-265758 Decorated pots can be destroyed by projectiles in adventure mode
• MC-265761 Decorated pots are missing from the creative inventory's redstone blocks tab
• MC-265767 Commands don't show error messages in chat
• MC-265773 Functions executed as advancement rewards are executed at the top level
• MC-265778 "gamerule maxCommandChainLength 0" prevents subsequent command execution in the world
• MC-265789 Realms popup strings consist of inconsistent concluding punctuation

23w41a

For this week's Snapshot, we've made improvements to the Decorated Pots!

Additionally, Realms is now available in Snapshots moving forward! Any player who has an active Realms subscription is eligible to create a free Snapshot Realm. This Snapshot Realm will be separate from your regular Realm to prevent any issues from impacting your regular Realm. For more information on how Snapshot Realms work, please see Realms in Minecraft: Java Edition Snapshot FAQ.

New Features

Snapshot Realms

• Realms is now available in Snapshots, Pre-Releases, and Release Candidates
• The version of the last played world on a Realm is displayed in the Realms list
• Experiments are available for newly created worlds

Changes

• Decorated Pots can now store items, and can be smashed by projectiles

Decorated Pots

• Decorated Pots now store up to a single stack of items
• Hoppers, Hopper Minecarts and Droppers can now insert and/or extract items from Decorated Pots
• Comparators can now read the number of items in Decorated Pots
• Players can interact with Decorated Pots to insert items into them
• Decorated Pots have no GUI, and need to be broken to retrieve or discover their content by players
• Player interactions with Decorated Pots cause the Decorated Pot to wobble and trigger the vibration frequency of 11
• Decorated Pots can be smashed by projectiles which cause them to shatter and drop their content
• Decorated Pots now stack up to 64

We want to hear your feedback on these improvements to Decorated Pots - let us know what you think in our dedicated feedback site post!

Technical Changes

• The Data Pack version is now 20
• The name of non-living entities will now be shown if looked at and a CustomName is set, or always displayed if CustomNameVisible is set, similar to living entities

Data Pack Version 20

• Changed function command results
• Adjusted check for gamerule maxCommandChainLength
• Added new gamerule maxCommandForkCount
• Reintroduced form of the execute command: execute if function
• Reintroduced form of the return command: return run
• Decorated Pots with cracked state set to true will always shatter when broken
• Added new dust_plume particle type

Commands

Functions

• function command has been changed to better accomodate new return command
• Functions no longer have any result unless they use return or there was error during lookup or instantiation
  • That means function command will no longer return (or even display) number of commands run during execution
  • Error conditions:
    • Calling non-existent function
    • Calling empty function tag
    • Macro instantiation failure
• "Result" in this context means values that would be stored with execute store
• The previous behavior where every command in function would perform store if a function was called with execute store ... run function is removed
  • That means that a single call to function will store at most once (zero times if return was not called)
  • For function tags with multiple entries, function results will be accumulated, but partial results will be stored at the end of every function

Limits

Existing limits for functions have been refined to accomodate new execution rules and prevent wider range of exploits:

• Limits apply even if run from command line (so it will now always behave as if they were placed in a function)
  • For example, all functions called by execute as @e run function will count towards same limit
  • Executions from command blocks still count as separate ones
• Limit maxCommandChainLength for functions will now count "operations" like:
  • execution of command for a single context
  • execution of a stage in execute (no matter how many contexts were modified)
  • invocation of function
• New limit with game rule maxCommandForkCount now restricts total amount of context that can be created by single state of functions like execute
  • Example: if there are 5 entities in world, execute as @e creates 5 contexts, while execute as @e at @e creates 5*5 = 25 contexts

execute if function

An execute sub-command that runs a function or function tag and matches the return value(s). This is a reintroduction of functionality removed in previous version. If a tag is given, all functions run regardless of the results of prior functions.

Syntax: execute if|unless function <function> <continuation>

Parameters:

• function: The function or tag to run

Matching

The matching of the result value of the function(s) that run:

• At least one of the functions must succeed for the match to succeed
• A succeessful call is defined as a function that:
  • Uses the return command to return a value
  • The return value is not 0
• If no functions exited with return, neither if or unless will run

return run

A form of the return command is now available, return run. This is a reintroduction of functionality removed in previous version.

Syntax: return run <command>

This takes the result value from running the specified command and returns that as the return value of the function.

• If command did not return any value (like, for example, call to a function without return), return will not execute and function will continue execution
• If the given command fails, the return value is 0
• In all other aspects, it works like return with a specified return value
• In case of fork (for example return run execute as @e run some_command) the first execution of the command will return
  • If there are no executions (for example in return run execute if @e[something_impossible] run some_command) function will not return and will continue execution

Fixed bugs in Snapshot 23w41a

• MC-16937 Shooting an arrow into the nether portal can hurt anybody when PvP is disabled
• MC-50319 Player owned projectiles lose their player ownership when exiting portals
• MC-81656 Field determining whether or not a wither skull is blue is not saved to and read from NBT
• MC-118403 Vexes summoned by evoker do not have evoker team applied
• MC-143266 Nested function calls reevaluate maxCommandChainLength before queueing commands
• MC-143269 Nested intermediate functions are skipped when maxCommandChainLength commands are already queued
• MC-189227 First time tutorial uses old textures
• MC-198113 Incomplete commands do not prevent functions from loading
• MC-233276 You can feed adult donkeys, horses, llamas or mules with maximum Temper value, and hand animation is not played
• MC-234323 Performance issue with text parsing
• MC-236501 Renamed minecarts and boats don't show their name tag in the world
• MC-249408 Boats with Chests lose their name when placed
• MC-257786 The game takes a long time to process players leaving realms groups or accepting or declining realms invitations
• MC-260576 Incomplete 'execute summon' command still runs
• MC-261682 Brushing can continue when block goes out of range
• MC-262105 Entities can block brushing actions when players look very close to their hitboxes
• MC-263575 When an item is extracted from suspicious sand/gravel, gravity does not work on this block
• MC-263660 "Sign wobbles" subtitle is the same for signs and hanging signs, causing translation issues
• MC-264595 Return command cannot run function when inside another function
• MC-264699 Functions return the output of commands only if the command doesn't start with return run
• MC-264710 "/execute if function" always fails and "/execute unless function" always succeeds if run from a function
• MC-264880 GUI slider uses new texture with programmer art
• MC-265516 The "Cancel" button within some realms menus can be deselected using keyboard navigation despite it being the only element within the said menu
• MC-265647 Shield arm position is incorrect while in a boat
• MC-265656 Pumpkins can no longer be sheared

23w40a

We are now releasing Snapshot 23w40a, the first snapshot for 1.20.3! This snapshot contains improvements for shields, changes to chat component serialization and bug fixes.

Changes

• When a player is blocking with a shield, the arm with the shield now follows the direction the player is looking at, when viewed from third person perspective

Technical Changes

• The Data Pack version is now 19
• A few minor changes to chat component serialization

Chat components

Serialization

• Plain-text chat components (text, no sibilings, no stylings) are now always serialized as string instead of {"text': "blah"}
• Chat components now serialize to NBT when sent over network
• Chat components now have an optional type value (allowed values: text, translatable, score, nbt, keybind) to speed up parsing and improve error checking
• id field in show_entity hoverEvent style now also accepts UUID as an array of 4 ints
• Numeric and boolean arguments for translate component are no longer converted to string
• The following JSON component representations are no longer accepted:
  • null
  • []
• Errors in following style fields are no longer silently ignored:
  • color
  • clickEvent
  • hoverEvent
  • hoverEvent[action=show_entity].contents.name
  • hoverEvent[action=show_item].contents.tag

Data Pack Version 19

Tags

• Added can_breathe_under_water entity type tag which disables drowning
• Added can_break_armor_stands damage type tag for damage types that can incrementally knock down armor stands

Fixed bugs in 23w40a

• MC-47607 Barrier particles aren't shown if particles are set to minimal
• MC-50647 Slime mob spawners spawn slimes only in slime chunks
• MC-78314 (Marker) Armor stands create bubbles in water
• MC-109101 Shields do not block damage while the player faces straight up
• MC-114761 Area effect cloud applies effect to dying mob
• MC-172398 Fire texture renders according to the player's rotation in the player inventory
• MC-221558 Light particles aren't shown if particles are set to minimal
• MC-227255 Beehives and bee nests do not rotate/mirror correctly in structure blocks
• MC-236946 Shield attack vector is normalized incorrectly
• MC-253819 Bells don't rotate correctly when loaded by structure/jigsaw blocks
• MC-254850 An operator can kick a host of a LAN world
• MC-255173 Nether portal teleportation is inaccurate at large coordinate values
• MC-261303 Decorated pots have an unused "cracked" block state
• MC-263123 Mending incorrectly calculates overflow after full repair
• MC-264748 GLX._initGlfw Treats Pointer as a String
• MC-265353 Clocks and Compasses in Item Display Entities don't show correct time/direction
• MC-265462 Sending resource pack during play phase shows loading terrain screen for a long time
• MC-265519 Game minimizes when certain areas of the screen are clicked on Mac in fullscreen mode

1.20.2

We're now releasing 1.20.2 for Minecraft: Java Edition. This release comes with more diamond ore in the deep regions of the world and changes to mob attack reach as well as optimizations to the game's networking performance enabling smoother online play even on low-bandwidth connections.

This release also includes new features for map makers and pack creators like macro functions, a random command and pack overlays.

With 1.20.2, we are making some important updates to our Player Reporting Tool to better protect the online safety of our players. You will now be able to report player skins and usernames that violate our Community Standards.

The optional Villager Trade Rebalance Experiment also makes its debut in this version with changes to trades in the making that you can try out.

New Features

Player Skin & Name Reporting

We are making some important updates to our Player Reporting Tool to better protect the online safety of our players.

Playing Minecraft should be an inclusive and safe experience for everyone, which is why alongside in-game chat messages, you will now be able to report player skins and usernames that violate our Community Standards in Java Edition.

Just like with chat reports, nothing is automated. Any reported skin or username will be reviewed manually by a team of trained Minecraft moderators, who will use the submitted evidence to decide whether the skin and/or username is in breach of our Community Standards. Skins that are in violation of these standards will be removed from Minecraft and will no longer be accessible for use by any player. Usernames that are in violation of these standards will need to be changed before that player can play online via a shared server or Realm; though single player mode will still be accessible. To find out more about this and other safety policies, including more detail on the suspension procedure, appeals process, and how we handle malicious or repeat reporting, please visit our dedicated FAQ page.

• Player Skins and Names can now be reported in the Social Interactions Screen
• If a skin or name is reported, and found to be violating the Community Standards, our team of human moderators can action in a few ways:
  • Ban the skin from being used by any player
  • Ban the name from being used by any player
  • Suspend the player from online play in the case of repeated offences
• When a skin is banned, players with that skin:
  • Will have their skin removed
  • Will be notified when they launch the game
  • Will be automatically assigned one of the default skins
  • Can still play multiplayer and singleplayer
  • Can select a new custom skin at any time
• When a player's name is banned, that player:
  • Will need to choose a new name
  • Will be notified when they launch the game
  • Will not be able to play online until they change their name
  • Can still play singleplayer
• A skin or name that has been banned cannot be used by any player in the future

Changes

• The calculations to determine whether a mob can attack a player or other mobs have been changed
• Diamond Ore is now generated more frequently in the Deepslate layers of the Overworld
• Optimizations to networked play
• Curing a Zombie Villager now only gives a big discount the first time
  • There is no longer a bonus discount for reinfecting and curing the same Villager multiple times
• Sponges and Wet Sponges now have their own custom sounds
• Barrier blocks can now be waterlogged by players in Creative mode
  • Water cannot be placed in them or taken out by non-direct interactions such as Dispensers
• The positions that all entities ride on other entities have been adjusted to make more sense
• Added the "Narrator Hotkey" accessibility option (default on)
  • The narrator can be toggled on and off with Ctrl+B when this is on
• Added "I want to report them" Player Reporting category
• Removed Herobrine

Mob attack reach changes

The calculations to determine whether a mob can attack a player or other mobs have been changed. Previously a mob's horizontal width was used to determine their attack reach and their height had no effect. The area where a mob can attack is now their bounding box extended in horizontal directions.

Here are some situations where the new rules will affect the reach of mobs:

• If a mob is entirely below you, or entirely above you, it will not be able to reach you
• While riding on a medium-sized mob, like a Horse, you will be protected from small mobs, like Baby Zombies
• While riding on a tall mob, like a Camel, you will be protected from standard-size mobs, like Zombies
• Also, Ravagers won't be able to attack you through a few block thick walls anymore
• However, to escape from an Enderman, you need to be at least 3 blocks above the ground, not 1.5 as before
• Mobs will be able to attack you with the bottom of their hitbox, assuming your head is in range
• Builds that trap hostile mobs might need to be adjusted to be safe

This change does not affect the reach of players, and mobs still need to see their target to attack it.

Networked Play

The Multiplayer mode of the game has been optimized to enable more fluid online play. If you have previously experienced disconnections or slow loading into online servers, this version may significantly improve that experience.

• The game world will now show earlier instead of the loading screen while loading into a world on a server
• Clients with extremely low-bandwidth connections will not time out while loading the world
• Clients with low-bandwidth connections can interact with the world while some chunks are still loading

Vibrations

• Vibrations no longer risk being lost on simulation distance limit
• Using Bone Meal emits an item_interact_finish vibration of frequency 3
• Unequipping items emits a new unequip vibration of frequency 4
• Camels eating Cactus emit an eat vibration of frequency 8
• Carrots being eaten by Rabbits emit a block_change vibration of frequency 11
• Sweet Berries being eaten by Foxes emit a block_change vibration of frequency 11
• Chiseled Bookshelves emit a block_change vibration of frequency 11 when receiving books from Hoppers
• Turtle Eggs cracking emit a block_change vibration of frequency 11
• Turtle Eggs hatching emit a block_destroy vibration of frequency 12
• Fire being doused by Water Potion emits a block_destroy vibration of frequency 12
• Evokers evoking Vexes or Fangs emit an entity_place vibration of frequency 14

Miscellaneous Minor Tweaks

• Chorus Flower no longer provides support for hanging or standing blocks
• Updated structure icons on Explorer Maps sold by Cartographers
• When Villagers unlock new trades, the order of those trades in the UI is now always random instead of sometimes being deterministic
• The sizes of text fields in the user interface are now consisent with the size of buttons

Technical Changes

• The resource pack version is now 18
• The data pack version is now 18
• History of used commands is now saved and accessible across worlds
• Optimized networking to improve the experience on low bandwidth connections
• Added support for multi-version packs
• Changed network protocol to allow for more data-driven content in the future
• Added new log-ips option to server.properties
• Added validation for symbolic links in datapacks and resource packs
• When hitboxes are displayed through F3+B, entities that have a passenger will display the passenger's attachment point
• The charts on the debug screen can now be toggled with F3+1 (pie chart) and F3+2 (FPS and TPS) instead of holding Shift or Alt while opening the screen
• Pressing F3+3 will now show charts for ping and received network traffic on the debug screen
• The LWJGL library has been upgraded to version 3.3.2
• The default Java version shipped with the game has been upgraded to Microsoft OpenJDK 17.0.8

Command History

• The last 50 commands that you sent in chat will be remembered across game sessions
• You can access the command and chat history by pressing up or down arrows in the chat
• Regular chat is only persisted within the same game session (leaving a server or world clears them)
• Recent commands are stored in command_history.txt in the game folder

Network optimizations

• Gameplay packets are now packed into bigger TCP packets to reduce overhead from TCP headers, significantly reducing network usage
• Chunks are not sent over the network to the client in one big continuous batch anymore
• Chunks are instead sent in smaller batches depending on the available bandwidth, meaning that:
  • Clients with extremely low-bandwidth connections will not time out while loading the world
  • Clients with low-bandwidth connections can interact with the world while some chunks are still loading
• Only chunks within the client's render distance are now sent

Multi-version Packs

New features have been added to datapacks and resource packs to allow creation of packs that are compatible with multiple versions of game.

Pack Metadata

• Pack metadata now includes an optional field supported_formats which describes a range for pack formats that this pack supports
  • Examples: 16, [16,17], {"min_inclusive": 16, "max_inclusive": 17}
• pack_format field is still required and its format remains unchanged, to allow older game versions to read pack data
  • If supported_formats is present, it must contain the value declared in pack_format
  • Note: since this new information is ignored by older versions of the game, they will always see a "normal", single-version pack, without any extended compatibility

Overlays

• Packs can now contain overlay directories ("overlays")
• Overlays are sub-packs applied over the "normal" contents of a pack
  • These directories have the same layout as the top-level pack, including the assets and data directories
  • Overlays can be applied if they support the client's pack format
  • Overlays can add and replace files, but not remove them
    • For example, if the overlay foo is applied, the file foo/assets/minecraft/textures/bar.png will replace the contents of assets/minecraft/textures/bar.png
  • pack.mcmeta and pack.png are ignored in overlay directories
• New section called overlays have been added to pack metadata
  • It contains an entries field, containing a list of overlays
  • Every overlay entry has two fields:
    • formats - range of supported formats
    • directory - overlay directory (allowed characters: a-z, 0-9, _ and -)
• Order of application: overlays are stacked from the bottom to top of the list
  • For example, if a pack has two overlays: "entries": [{"directory":"A", ...}, {"directory":"B", ...}], the game will first look in B, then A and then in the top pack directory

Symbolic Link Validation

To improve safety, the game will now also detect symbolic links used inside data- and resource packs.

• This feature expands on symbolic link validation in worlds added in the previous release
• The game will now warn users if a pack added via drag and drop contains disallowed symbolic links
• Packs containing disallowed symbolic links will not be visible in UI and commands
• Additionally, directories and files that are not recognized as packs will no longer be copied via drag and drop
• For a detailed explanation, see this help article

Network Protocol

As part of ongoing work towards more data-driven features, the network protocol has been changed to include a new configuration phase.

• Configuration phase automatically starts after login phase (i.e. after client account has been verified) and lasts until the player joins the world (play phase)
• Clients can stay in configuration phase indefinitely - it's up to the server to release it to the world
• Servers can also request clients to re-enter the configuration phase after it has entered the play phase
  • Other players will see such clients as disconnected
• Users in configuration phase will not be visible on the player list
• Actions allowed in configuration phase (moved from play phase):
  • Configuration of data-driven registries
  • Configuration of enabled features
• Actions shared between configuration and play phases:
  • Application of server resource packs
  • Update of tags
  • Exchange of custom packets
  • Ping and keep-alive packets
  • Sending of client options
• The server will now negotiate resource packs in the configuration phase
  • This means that the player will no longer be in the world when answering prompts and reloading resources

Secure Chat

• Clients will no longer disconnect themselves when receiving an invalid chat message
  • A placeholder message will instead be shown in chat

server.properties

• New option: log-ips (default true)
  • When set to false, will prevent player IPs from being included in the log when players join the game

Telemetry

• Added a button to the Telemetry Data Collection Screen that links to the Microsoft Privacy Statement

Resource Pack Version 16

• The process of upgrading your pack can be assisted by using this automated Slicer tool
• All textures containing multiple sprites in a sheet for GUI have been split into individual sprites under textures/gui/sprites (automated by the Slicer tool)
• All textures in the realms namespace have been moved into the minecraft namespace (automated by the Slicer tool)
• villager2.png has been renamed to villager.png (automated by the Slicer tool)
• icon/trial_available and realm_status/expires_soon GUI sprites are animated with .mcmeta declarations instead of individual sprites (automated by the Slicer tool)
• The Bundle tooltip background is now drawn as a nine-sliced sprite
• The icons for the Accessibility, Language, Realms News buttons have been split from their underlying button texture
• The Realms Invite button is now drawn as an overlay on the normal button texture
  • The highlighted texture state for this button has been removed
• The highlighted states for Realms invitation number icons have been removed
• The exclamation marks on the notification\more.png have been removed

GUI Sprite Sheet

• Sprites used in GUI drawing have been split into individual sprite files instead of larger sprite sheets
  • For example, widgets/button.png and widgets/button_highlighted.png have been split from widgets.png
• Each sprite can now be individually overriden by a resource pack instead of replacing the entire sheet
• Sprites are loaded into the gui atlas from the textures/gui/sprites directory

GUI Sprite .mcmeta

• Any sprite used in the GUI can now be animated using .mcmeta files, similar to other atlases
  • icon/trial_available and realm_status/expires_soon are now animated this way
• Sprites in the gui atlas can now configure scaling behavior through a new gui section in .mcmeta files
  • For example, button textures must be scaled based on how big the button should be
  • The gui section in .mcmeta contains one scaling field:
    • type: one of: stretch (default), tile, or nine_slice
    • When stretch, the sprite will be stretched across the desired space
      • No additional fields need to be defined
    • When tile, the sprite will be repeated across the desired space, starting from the top-left
      • width: number of pixels for this sprite to cover on-screen across its width
      • height: number of pixels for this sprite to cover on-screen across its height
    • When nine_slice, the sprite will be sliced into 4 corners, 4 edges, and 1 center slice, which will be tiled across the desired space
      • width: number of pixels for this sprite to cover on-screen across its width
      • height: number of pixels for this sprite to cover on-screen across its height
      • border: the size in pixels that the border slices should cover on-screen, one of:
        • Constant integer for uniform border size on all sides
        • Object containing left, top, right, and bottom

Resource Pack Version 17

• The text field background is now a nine-sliced sprite at widget/text_field and widget/text_field_highlighted
• The scroll bar in lists and text fields is now a nine-sliced sprite at widget/scroller

Resource Pack Version 18

• The map_icons.png texture now contains new icons

Data Pack Version 16

• Gamerule randomTickSpeed now affects the rate of accumulation of Snow and Ice the same way it affects crops and other blocks affected by random ticking
• Added a random command
• Added support for function macros
• Changed Display entities' post-teleport interpolation
• Added new attribute generic.max_absorption
• Renamed belowName value in display slot argument in scoreboard command to below_name
• Game event changes
• New tags

Commands

random

A new command for randomizing values and controlling random sequences. The value and roll forms can be used to draw a random value. In the case of roll, the resulting value is also shown in chat for all players.

Syntax:

random value|roll <range> [<sequenceId>]
random reset *|<sequenceId> [<seed>] [<includeWorldSeed>] [<includeSequenceId>]

Parameters:

• range: A range of values to randomize between, inclusively
  • For instance, 1..6 is a regular D6 roll
• sequenceId: The name of a random sequence to sample or reset
• seed: A seed to use for the random sequence after reset
• includeWorldSeed: A boolean [default: true] specifying whether to include the world seed when seeding the sequence
  • false means the sequence will evaluate to the same regardless of which world the command is run in
• includeSequenceId: A boolean [default: true] specifying whether to include the sequence ID when seeding the sequence
  • false means all sequences will evaluate to the same regardless of which name they have

By default, all sequences are seeded as 0, true, true. Using * instead of a sequence ID resets all sequences and sets the default parameters.

If no seed is specified, the sequence resets to the default parameters.

Note that random value|roll <range> used without a sequence id is available to non-operator players.

Functions

• A single backslash \ as the last non-whitespace character of a line now allows a command to be continued on the next line
  • Leading and trailing whitespace of the following line are stripped before appending

Macros

Functions can now contain macro lines, making them Function Macros.

• Any line beginning with $ (as the first non-space character) marks a macro line
• A macro line also contains one or more substitutions in the form of $(variable)
• When calling a function macro a compound with data for all argument variables must be provided

Calling Function Macros

The function command has new forms:

function <id> <compound> function <id> with <data source> [<path>]

New Arguments:

• compound: A data compound, enclosed in {}
• data source: A data source specification, like what could already be used for data get
• path: An NBT path specification

Notes:

• The data source and path must specify a compound data entry
• The compound must contain one entry for each variable used in the macro
• More data may be present in the compound and if so is ignored
• Calling a non-macro function with a data compound is silently ignored
• When a macro is called, the values provided are substituted in place of the variable specifications and the resulting commands are executed
• Any syntax errors in the lines resulting from variable substitution result in the entire function call being skipped

Performance Considerations

Using a macro means commands must be re-evaulated after variable substitution. This has an extra cost compared to running pre-parsed functions.

Regular commands (non-macro lines) are still pre-parsed. Only commands with variable substitutions in them are parsed when a macro is called and the game will attempt to cache the result of a certain parameter set being used in a call.

This makes repeated calls with the same parameter set cheaper than new calls with different parameters, but an overhead still remains compared to regular functions. Note that only the values references by macro as parameters are included in this cache, so any extra data in the provided compound is ignored.

Display Entity Interpolation

• Display entities now start updating their client-side position and rotation on the first tick after an update
  • In previous versions, updates were applied in the same tick, causing uneven motion
  • The new behavior is similar to Armor Stands, mobs and players
• On the server, position and rotation are still updated immediately
• The duration of this interpolation is controlled by the field teleport_duration
  • 0 means that updates are applied immediately
  • 1 means that the Display Entity will move from current position to the updated one over one tick
  • Higher values spread the movement over multiple ticks
  • Please note that this value is clamped to avoid glitches due to periodic position updates
  • The new value will apply only to position and rotation changes made after it changed
    • That means any current movement will continue unchanged
• Note: behavior while riding remains unchanged from previous versions

Attributes

• Added new attribute generic.max_absorption
  • generic.max_absorption acts similar to generic.max_health, but instead of being the upper bound for Health, it is the upper bound for AbsorptionAmount
  • The mob effect absorption increases generic.max_absorption as well as fills the AbsorptionAmount to the max when applied

Game Events

• entity_roar and entity_shake game events have been removed and replaced with entity_action game event

Tags

• Added no_knockback damage type tag which causes knockback to not be caused by the damage itself
  • Used in Vanilla for damage that is caused by events, such as explosions, which apply knockback separately
• Added non_controlling_rider to represent entities that don't override their vehicles movement control
• Added concrete_powder block tag for Concrete Powder blocks
• Added camel_sand_step_sound_blocks block tag for blocks that produce entity.camel.step_sand sound

Data Pack Version 17

• Changed mob effect storage on items, entities and block entities
• Added decal field to armor trim patterns (default: false)
  • If true, the pattern texture will be masked based on the underlying armor

Mob effect storage changes

• The game no longer uses numeric values when storing mob effects to a world (so, for example, 4 becomes minecraft:mining_fatigue)
• Various mob effect fields have been renamed for consistency with new structures

Mob Effect Instance

This structure is used in many places, so its changes are described separately.

• Id -> id, also changed from number to string id
• Ambient -> ambient
• Amplifier -> amplifier
• Duration -> duration
• ShowParticles -> show_particles
• ShowIcon -> show_icon
• HiddenEffect -> hidden_effect, also since it's mob effect instance, changes apply recursively
• FactorCalculationData -> factor_calculation_data

Items

potion, lingering_potion, splash_potion, tipped_arrow

• CustomPotionEffects -> custom_potion_effects, contents tranformed as a list of mob effect instances

suspicous_stew

• Effects -> effects, for each entry:
  • EffectId -> id, also changed from number to string id
  • EffectDuration -> duration

Entities

mooshroom

• Removed EffectId and EffectDuration
• Added stew_effects with the same format as suspicious_stew.effects tag (i.e. list of effect id and duration)

area_effect_cloud

• Effects -> effects, contents tranformed as a list of mob effect instances

arrow

• CustomPotionEffects -> custom_potion_effects, contents tranformed as a list of mob effect instances

Players, Armor Stands and mobs

• ActiveEffects -> active_effects, contents tranformed as a list of mob effect instances

Block Entities

beacon

• Primary -> primary_effect, also changed from number to string id
• Secondary -> secondary_effect, also changed from number to string id

Loot Tables

• Added sequence loot function
  • Contains 1 field:
    • functions: an array of sub-functions to run in sequence
  • Can also be declared as an inline array without a type
    • This matches the existing behavior where loot function JSON files can be declared as an array of composite functions
• all_of predicates in loot tables can now be declared implicitly as an inline array without a type
  • This similarly matches the existing behavior where loot predicate JSON files can be declared as an array of sub-predicates
• Block or fluid state property matchers in loot conditions no longer accept non-string values
  • Any number or boolean value in a property matcher must be quoted

Data Pack Version 18

This data pack version removes the execute if function and return run functionality that existed for a time during the development of this version. Flaws with those commands (see bugs MC-264595, MC-264699 and MC-264710) require some substantial changes to fix, which we do not want to make close to a release.

These commands will instead be reintroduced early in the next snapshot series when we can take the time to iterate on and test them together with pack makers.

• Removed execute if|unless function command form
• Removed return run command form
• Numbers used as macro arguments are now always inserted without suffixes, regardless of numeric type
• Added game rule enderPearlsVanishOnDeath, controlling whether thrown Ender Pearls vanish when the player that threw them dies (default true, which matches the existing behavior in previous versions)
• Added damage type tag always_kills_armor_stands for damage types that should always fully kill an Armor Stand

Experimental Features

Villager Trade Rebalance

The Experiments screen when creating a world now has an option to enable the Villager Trade Rebalance. When this option is selected, some Villager trades will change.

This experiment has no effect on normal worlds. You can find more information about Feature Toggles here.

Librarian Changes

• Librarians from different biomes now sell different Enchanted Books
• Each village biome has one special enchantment that is only available from Master Librarians with full XP
• This means that players must visit all seven village biomes to get the full set of villager enchantments
• There are two secret village biomes where villages do not generate
  • A player must build these villages to access their trades!
• Some enchantments have been removed from village trading and must be found in other ways

Cartographer Changes

• Cartographers can now sell seven new Explorer Maps
  • Five new maps show the way to five different types of village
  • The other two new maps show the way to a Swamp Hut and a Jungle Temple
• Cartographers from different biomes now sell a different range of maps

Wandering Trader Changes

• Wandering Traders now have lower prices and have a higher amount of each item in stock
• Wandering Traders now sell Logs
• Wandering Traders can now buy many items, instead of only selling

Armorer Changes

• Armorer from different biomes now sell different Armor with different enchantments
• Buying Diamond Armor now requires a small amount of Diamonds as well as Emeralds
• Many other Armorer trades have been updated

Structure Loot

Certain Enchanted Books now have a high chance of generating in some structures:

• Ancient Cities: Mending
• Mineshafts: Efficiency (I to V)
• Pillager Outposts: Quick Charge (I to III)
• Desert Temples: Unbreaking (I to III)
• Jungle Temples: Unbreaking (I to III)

Fixed bugs in 1.20.2

Around 200 bugs were fixed in this release. View the list on the issue tracker.

1.20.2-rc2

A second Release Candidate for 1.20.2 is now available in the Minecraft Launcher. If no further critical issues are found, we still aim to release 1.20.2 later this week.

Changes

• Fixed a problem with Villagers and Wandering Traders suffocating when travelling up slopes in Minecarts

1.20.2-rc1

Here is the first (and hopefully last) release candidate for 1.20.2. Unless something critical pops up, no further changes will be made for the full release, which is planned for next week.

Changes

• The positions that all entities ride on minecarts have been adjusted to make more sense

Fixed bugs in 1.20.2 Release Candidate 1

• MC-265238 trade_rebalance loot tables have a wrong type
• MC-265388 Mobs now sit too high in minecarts

1.20.2-pre4

Here comes the fourth pre-release for 1.20.2. Much like the previous one, this pre-release contains some bug and crash fixes.

Happy Mining!

Technical Changes

Data Pack Changes

• Added damage type tag always_kills_armor_stands for damage types that should always fully kill an Armor Stand

Fixed bugs in 1.20.2 Pre-Release 4

• MC-265239 Error in logs: java.lang.IllegalStateException: recursive call to sendBlockUpdated
• MC-265289 Error in log: java.lang.IllegalStateException: onTrackingStart called during navigation iteration

1.20.2-pre3

We are now releasing the third pre-release for 1.20.2. As we are now on the final stabilisation stretch of 1.20.2, this pre-release contains some bug and crash fixes.

Happy Mining!

Fixed bugs in 1.20.2 Pre-Release 3

• MC-264564 Record attribute is stripped from records with no components
• MC-265296 Player sits lower in minecarts
• MC-265335 Hoglins can't be bred

1.20.2-pre2

Another pre-release this week with minor changes and some bug fixes.

Recipe book search revert

We received a lot of great feedback on the changes to the Recipe Book search in the last pre-release, as well as a number of bugs. As we do not have time to address this feedback so close to release, we have reverted the change for now, but we may look into this again at a later time.

Technical Changes

• The resource pack version is now 18 accounting for the new icons in last pre-release

Fixed bugs in 1.20.2 Pre-release 2

• MC-109346 Newly rendered players always look south until they move their head
• MC-206182 Cannot tab out of console text field of command block
• MC-235762 Screenshots wider than 16384 pixels causes a crash / java.lang.OutOfMemoryError: Out of stack space
• MC-249702 Server crash: java.lang.NullPointerException: Cannot invoke "com.google.gson.JsonArray.iterator()" because "$$1" is null
• MC-261119 Accessibility button in the Welcome screen needs its own string
• MC-262754 Change in AbstractScrollWidget breaks MultiLineEditBox click-to-move-cursor behaviour
• MC-264759 Narrator narrates incorrect tab action in command block suggestions
• MC-265237 Recipe book search no longer finds anything containing non-English characters
• MC-265241 Recipe book search no longer finds relevant items in languages where compound words are not separated
• MC-265243 Uncraftable variants of a craftable recipe are shown as craftable now
• MC-265244 Macro arguments entered as floats are converted to scientific notation
• MC-265245 Crafting book search doesn't find anything when a space is included in the search
• MC-265253 Fullscreen Resolution value is untranslatable
• MC-265260 Boats and rafts when placed turn south
• MC-265262 Revoked recipes remain in the recipe book until relogging
• MC-265263 Ender Pearl vanishes client side when enderPearlsVanishOnDeath is false
• MC-265264 trade_rebalance tags are not in the trade_rebalance pack
• MC-265276 Fire under naturally generated end crystals does not always emit light correctly
• MC-265280 Mobs sometimes become invisible when you join a singleplayer world

1.20.2-pre1

Are you pre-pared for Pre-release 1 of 1.20.2? Moving into pre-releases means that, moving forward, you won't see any significant changes besides bug fixes and tweaks until the next snapshot cycle. It also means that we will be releasing more frequently than just Wednesdays, so keep your eyes peeled! However, Pre-release 1 brings new changes to the 'Villager Trade Rebalance' experiment, updates to Recipe Book search, command changes, and a new game rule!

Happy crafting!

Changes

• The Recipe Book search has been updated with the following changes:
  • The search will only match the beginning of any word in the item's name
    • For example, searching for "tor" will still show Torch and Redstone Torch but not Daylight Detector anymore
  • All recipes, including those that have not been unlocked, will now show up in search results
  • This will enable experienced players to find the recipes they are looking for (even if it hasn't been unlocked yet) without overwhelming new players
• Updated structure icons on explorer maps sold by Cartographers
• When villagers unlock new trades, the order of those trades in the UI is now always random instead of sometimes being deterministic

Technical Changes

• The data pack version is now 18
• Client options are now sent during the configuration network phase when joining a server

Data Pack Version 18

This data pack version removes the recently introduced execute if function and return run functionality. Flaws with those commands (see bugs MC-264595, MC-264699 and MC-264710) require some substantial changes to fix, which we do not want to make close to a release.

These commands will instead be reintroduced early in the next snapshot series when we can take the time to iterate on and test them together with pack makers.

• Removed execute if|unless function command form
• Removed return run command form
• Numbers used as macro arguments are now always inserted without suffixes, regardless of numeric type
• Added game rule enderPearlsVanishOnDeath, controlling whether thrown ender pearls vanish when the player that threw them dies (default true)

Experimental Features

Villager Trade Rebalance Part 2

This pre-release updates the Villager Trade Rebalance experiment. This experiment has no effect on normal worlds. If you want to try these changes, you must turn on the Feature Toggle in the Experiments Menu when creating a new world. You can find more information about Feature Toggles here.

Thank you to everyone that has sent in their suggestions and feedback regarding the experimental trade change! We are trying out these changes to rebalance the villager trade system and make it more fair and fun for everyone. However, these changes are not yet final, and they will stay as experimental features while we continue to work on them. We appreciate your feedback on these changes. Visit this link to share your thoughts! We have been following the discussions about the previous Librarian and Wandering Trader updates and look forward to seeing the conversation continue.

Cartographer

Before now, Cartographers only sold maps to the Ocean Monument and Woodland Mansion. In this experiment Cartographers can sell seven new maps as well. These new maps each point to a different village or structure and can be used to find seven different biomes. This will help players who want to quickly find a specific location without waiting until they come across it by chance.

Cartographers from different biomes will sell a different selection of maps. Starting from one village, it will be possible to find every other village type by following maps from village to village.

Cartographers now sell 7 new maps: Desert Village Map, Jungle Explorer Map, Plains Village Map, Savanna Village Map, Snow Village Map, Swamp Explorer Map, and Taiga Village Map.

Armorer

The Armorer's trades have been updated with many changes.

The biggest change is that buying diamond armor now requires paying a small amount of Diamonds as well as Emeralds. This is meant to make the Armorer's diamond armor trades less useful at the start of the game when players don't have any Diamonds, while still giving a powerful advantage to advanced players who have spent some time collecting Diamonds.

Early-game players will find Armorers useful as a great source of iron armor, Shields and Emeralds.

Other changes include:

• Most master-level Armorers buy Iron Blocks (and pay very well for them)
• Chainmail armor is exclusively sold by the secret Jungle and Swamp Armorers
• The Savanna Armorer sells cursed diamond armor at reduced prices
• The Taiga Armorer can swap one piece of diamond armor for another

Structure Loot

Certain Enchanted Books now have a high chance of generating in some structures:

• Ancient Cities: Mending
• Mineshafts: Efficiency (I to V)
• Pillager Outposts: Quick Charge (I to III)
• Desert Temples: Unbreaking (I to III)
• Jungle Temples: Unbreaking (I to III)

Fixed bugs in 1.20.2 Pre-release 1

• MC-70127 Some block state changes aren't communicated to clients
• MC-72721 Chat messages show after death independent of chat setting
• MC-103800 Sometimes armor stands won't update their visual rotation
• MC-119873 The text used for the credits button within the title screen is untranslatable
• MC-154827 Typo in splash text "Verlet intregration!"
• MC-177172 Dash in villager/trader UI is hardcoded / untranslatable
• MC-248778 The item count symbol within shulker box tooltips is untranslatable
• MC-248833 The parentheses used before and after the warning label within the language menu are untranslatable
• MC-248844 The page indicator symbol within the recipe book GUI is untranslatable
• MC-248846 The colon used within the death screen to show the player's score is untranslatable
• MC-249355 The hyphen used within the statistics menu to show a null value is untranslatable
• MC-252295 The word "whilst" within several death messages isn't spelled in American English
• MC-252298 Death messages relating to the Thorns enchantment don't contain conjunctions where appropriate
• MC-252316 The word "burnt" within some death messages isn't spelled in American English
• MC-253241 The player count indicator symbol within the multiplayer menu is untranslatable
• MC-253269 The advancement progress indicator symbol within the advancements menu is untranslatable
• MC-253270 The hyphen used within boss bars for raids is untranslatable
• MC-253278 The percentage symbol used within the level loading screen to show the loading progress of the world is untranslatable
• MC-253281 Text within filled map tooltips when advanced tooltips are hidden is untranslatable
• MC-253283 The percentage and chunk indicator symbols used within the optimize world menu are untranslatable
• MC-253638 The symbols used within shulker box tooltips to show random loot table contents are untranslatable
• MC-255418 Vertical redstone dust placed against dropper/dispenser/hopper doesn't visually disappear when the dust above is removed
• MC-256777 The two characters used within the tab list to show players' health are untranslatable
• MC-260819 The "death.attack.message_too_long" string is missing an article before the word "stripped"
• MC-263133 Inconsistent word usage in Out of Memory screen
• MC-264233 Player is shown as Anonymous after dying and respawning
• MC-264574 symlink does not work for root world folder
• MC-264615 It takes several seconds for the absorption effect icon to display after obtaining the effect
• MC-264656 Regular golden apples don't increase the number of gold hearts if you previously ate an enchanted golden apple and then took damage
• MC-264657 Absorption gold heart refilling is determined by whether the low level and the high level have the same hideParticles parameter
• MC-264658 Only integer numeric data type can be used in macro
• MC-264809 Redstone comparators cause redstone dust connection issue
• MC-265053 Programmer Art lapis lazuli outline texture in enchanting table UI incorrectly uses the old formatting
• MC-265060 Missing sprite for error in Loom GUI (loom.png)
• MC-265126 'requirements' field can no longer be skipped in advancements
• MC-265151 The "(Unknown)" string that's displayed when being banned from a server for an unknown reason is untranslatable
• MC-265209 Switching to protocol "CONFIGURATION" causes race condition
• MC-265213 The chat message from the /random command says "between 1 and 6" instead of "1 to 6"

23w35a

We are releasing a new snapshot that contains updates to support libraries, and a whole bundle of bug fixes!

Technical Changes

• The LWJGL library has been upgraded to version 3.3.2
• The default Java version shipped with the game has been upgraded to Microsoft OpenJDK 17.0.8

Fixed bugs in 23w35a

• MC-229121 JVM crash in jdk.internal.loader.NativeLibraries.load
• MC-242385 Inconsistency on the buffer size calculation in the chunk packet data
• MC-256549 Baby camels that aren't moving face in the direction of their adults when pathfinding to players that are tempting them
• MC-256737 Sniffers, frogs, goats, and camels prioritize pathfinding to their lover when fed over panicking when being damaged
• MC-259475 The rotation of controlling passengers on sitting camels is sometimes restricted while adjusting your rotation slowly
• MC-259860 Sitting camels that have passengers continuously look up and down for other players
• MC-261951 Dragon/piglin head does not move when placed on a jukebox that is playing a record
• MC-264092 Functions execute commands out of order when containing /say
• MC-264558 The word "reconfiguring" is spelled as "reconfiging" within the "connect.reconfiging" translation key
• MC-264559 Grammar error in "Added pack(s) contain symbolic links"
• MC-264561 Some new strings introduced in 23w31a are missing articles
• MC-264566 Force loaded chunks reset when changing versions
• MC-264619 Strings for returning to menus and loading lists are inconsistently spelled and capitalized
• MC-264686 Z-fighting occurs on the backs of bamboo chest rafts
• MC-264698 The absorption effect is lost when reloading the world
• MC-264750 Effects are lost when updating to 23w32a
• MC-264897 Shift-clicking to unequip armor bypasses vibrations in survival
• MC-264899 Narrator is not capitalized in the Narrator Hotkey tooltip
• MC-264915 Some mobs can still attack you through blocks
• MC-264917 Entry list gradients render below content
• MC-264920 Some buttons within the "Report Player" menu are improperly capitalized
• MC-264947 Torches generated on end fountain don't emit light

23w33a

We are making some important updates to our Player Reporting Tool in this Snapshot to better protect the online safety of our players.

Playing Minecraft should be an inclusive and safe experience for everyone, which is why alongside in-game chat messages, you will now be able to report player skins and usernames that violate our Community Standards in Java Edition.

Just like with chat reports, nothing is automated. Any reported skin or username will be reviewed manually by a team of trained Minecraft moderators, who will use the submitted evidence to decide whether the skin and/or username is in breach of our Community Standards. Skins that are in violation of these standards will be removed from Minecraft and will no longer be accessible for use by any player. Usernames that are in violation of these standards will need to be changed before that player can play online via a shared server or Realm; though single player mode will still be accessible. To find out more about this and other safety policies, including more detail on the suspension procedure, appeals process, and how we handle malicious or repeat reporting, please visit our dedicated FAQ page.

New Features

Player Skin & Name Reporting

• Player Skins and Names can now be reported in the Social Interactions Screen
• If a skin or name is reported, and found to be violating the Community Standards, our team of human moderators can action in a few ways:
  • Ban the skin from being used by any player
  • Ban the name from being used by any player
  • Suspend the player from online play in the case of repeated offences
• When a skin is banned, players with that skin:
  • Will have their skin removed
  • Will be notified when they launch the game
  • Will be automatically assigned one of the default skins
  • Can still play multiplayer and singleplayer
  • Can select a new custom skin at any time
• When a player's name is banned, that player:
  • Will need to choose a new name
  • Will be notified when they launch the game
  • Will not be able to play online until they change their name
  • Can still play singleplayer
• A skin or name that has been banned cannot be used by any player in the future

Changes

• Sponges and Wet Sponges now have their own custom sounds
• The calculations to determine whether a mob can attack a player or other mobs have been changed
• Added the "Narrator Hotkey" accessibility option
  • Allows the narrator to be toggled on and off with Ctrl+B
• Added "I want to report them" Player Reporting category
• A change has been reverted where armor trim patterns would be masked by the underlying armor texture

Mob attack reach changes

The calculations to determine whether a mob can attack a player or other mobs have been changed. Previously a mob's horizontal width was used to determine their attack reach and their height had no effect. The area where a mob can attack is now their bounding box extended in horizontal directions.

Here are some situations where the new rules will affect the reach of mobs:

• If a mob is entirely below you, or entirely above you, it will not be able to reach you
• While riding on a medium-sized mob, like a Horse, you will be protected from small mobs, like Baby Zombies
• While riding on a tall mob, like a Camel, you will be protected from standard-size mobs, like Zombies
• Also, Ravagers won't be able to attack you through a few block thick walls anymore
• However, to escape from an Enderman, you need to be at least 3 blocks above the ground, not 1.5 as before
• Mobs will be able to attack you with the bottom of their hitbox, assuming your head is in range
• Builds that trap hostile mobs might need to be adjusted to be safe

This change does not affect the reach of players, and mobs still need to see their target to attack it. We believe this new system will be more intuitive and will result in a more consistent behavior, and we welcome all feedback on this change.

Technical Changes

• The charts on the debug screen can now be toggled with F3+1 (pie chart), F3+2 (FPS and TPS) and F3+3 (bandwidth and ping) instead of holding Shift, Alt or Ctrl while opening the screen

Data Pack Changes

• Added decal field to armor trim patterns (default: false)
  • If true, the pattern texture will be masked based on the underlying armor

Fixed bugs in 23w33a

• MC-2310 Wrong attack radius calculation damages/kills entities through blocks and corners
• MC-112133 Eating chorus fruit does not reset fall distance
• MC-118616 The sounds of magma cubes and slimes aren't controlled by the "Hostile Creatures" sound slider
• MC-122645 Narrator hotkey cannot be customized or disabled
• MC-125046 "RepairCost" NBT tag is created on any renamed item using anvils which can cause items to not stack properly
• MC-181109 Grindstone adds RepairCost: 0
• MC-182820 Repeaters and comparators use wood sounds for placing/breaking despite being made mostly of stone
• MC-197473 Renamed block entities don't stack properly
• MC-200484 Jukeboxes use stone sounds despite being composed predominantly of wood
• MC-214126 Bees don't pollinate themselves with spore blossoms or chorus flowers
• MC-217628 Levers use wood sounds rather than stone
• MC-217629 Tripwire hooks use stone sounds, rather than wood
• MC-257909 Zoglins, hoglins, and pandas can still attack players riding camels
• MC-264741 Unequip vibration only works in creative mode
• MC-264743 The "Debug" line on the debug screen that shows which debug graphs are enabled doesn't mention the ping and network traffic chart
• MC-264746 Armor trims no longer render their second layer
• MC-264753 Eye armor trim on chainmail helmets now has absolutely no effect
• MC-264773 There's a misplaced label in the network traffic graph, overlapping minimum B/s rate text

23w32a

Hello! This very technical snapshot contains vibration changes, data pack and resource pack changes, some network optimizations, new debug tools, and a some bug fixes. Enjoy!

Changes

• Changes to vibration mechanic

Vibrations

• Vibrations no longer risk being lost on simulation distance limit
• Unequipping items emits a new unequip vibration of frequency 4
• Chiseled Bookshelves emit a block_change vibration of frequency 11 when receiving books from Hoppers
• Turtle Eggs cracking emit a block_change vibration of frequency 11
• Turtle Eggs hatching emit a block_destroy vibration of frequency 12
• Using Bone Meal emits an item_interact_finish vibration of frequency 3
• Fire being doused by Water Potion emits a block_destroy vibration of frequency 12
• Evokers evoking Vexes or Fangs emit an entity_place vibration of frequency 14
• Carrots being eaten by Rabbits emit a block_change vibration of frequency 11
• Sweet Berries being eaten by Foxes emit a block_change vibration of frequency 11
• Camels eating Cactus emit an eat vibration of frequency 8

Technical Changes

• The resource pack version is now 17
• A bug involving hunger icons was fixed in the slicer tool released with last snapshot. Here is the new version
• The data pack version is now 17
• Optimized networking to improve the experience on low bandwidth connections

Resource Pack Version 17

• The text field background is now a nine-sliced sprite at widget/text_field and widget/text_field_highlighted
• The scroll bar in lists and text fields is now a nine-sliced sprite at widget/scroller

Data Pack Version 17

• Changed mob effect storage on items, entities and block entities

Mob effect storage changes

• Game no longer uses numeric values when storing mob effects to world (so, for example, 4 becomes minecraft:mining_fatigue)
• Various mob effect fields have been renamed for consistency with new structures

Mob Effect Instance

This structure is used in many places, so changes are described separately.

• Id -> id, also changed from number to string id
• Ambient -> ambient
• Amplifier -> amplifier
• Duration -> duration
• ShowParticles -> show_particles
• ShowIcon -> show_icon
• HiddenEffect -> hidden_effect, also since it's mob effect instance, changes apply recursively
• FactorCalculationData -> factor_calculation_data

Items

potion, lingering_potion, splash_potion, tipped_arrow

• CustomPotionEffects -> custom_potion_effects, contents tranformed as a list of mob effect instances

suspicous_stew

• Effects -> effects, for each entry:
  • EffectId -> id, also changed from number to string id
  • EffectDuration -> duration

Entities

mooshroom

• Removed EffectId and EffectDuration
• Added stew_effects with the same format as suspicious_stew.effects tag (i.e. list of effect id and duration)

area_effect_cloud

• Effects -> effects, contents tranformed as a list of mob effect instances

arrow

• CustomPotionEffects -> custom_potion_effects, contents tranformed as a list of mob effect instances

Players, Armor Stands and mobs

• ActiveEffects -> active_effects, contents tranformed as a list of mob effect instances

Block Entities

beacon

• Primary -> primary_effect, also changed from number to string id
• Secondary -> secondary_effect, also changed from number to string id

Loot Tables

• Added sequence loot function
  • Contains 1 field:
    • functions: an array of sub-functions to run in sequence
  • Can also be declared as an inline array with out a type
    • This matches the existing behavior where loot function JSON files can be declared as an array of composite functions
• all_of predicates in loot tables can now be declared implicitly as an inline array without a type
  • This similarly matches the existing behavior where loot predicate JSON files can be declared as an array of sub-predicates

Network optimizations

• Gameplay packets are now packed into bigger TCP-packets to reduce overhead from TCP-headers, significantly reducing network usage
• Opening the debug screen with CTRL + F3 will now show charts for ping and received network traffic

Secure Chat

• Clients will no longer disconnect themselves when receiving an invalid chat message
  • A placeholder message will instead be shown in chat

23w31a

I was personally quite convinced that the game was already perfect, but it seems that our developers disagree. We are now releasing the first snapshot for Minecraft 1.20.2!

This snapshot brings changes to Diamond Ore generation, the ability to waterlog Barriers, and a change to Villager curing. It also brings a new Experimental Toggle that updates Villager trading, which we are eager to hear your feedback on. As well as a big batch of bug fixes, you will find a whole lot of technical features and changes in this snapshot, including new commands, function macros, persistent command history, network performance improvements, and much more.

Happy mining!

New Experimental Features in 23w31a

Villager Trade Rebalance

This snapshot introduces a new experimental Feature Toggle that updates the Wandering Trader and Librarian trades. You must turn on this Feature Toggle in the Experiments Menu when creating a new world if you want to test the new trades. You can find more information about Feature Toggles here.

As this is an experiment, we would really appreciate your feedback as work continues and to help us decide on the future direction for Villager trades. Visit this link to share your thoughts!

Librarian Changes

Before these changes, players could get any village enchantment from any Librarian. A novice Librarian could sell the best enchantment in the game! For some players, this felt too random and made trading feel overpowered when compared to using the Enchanting Table or searching for Enchanted Books in structures.

With the new rules, Librarians from different biomes sell different enchantments, and each village biome has one enchantment that is only sold by master Librarians.

Players will have to work towards getting the best trades instead of relying on random chance. We hope this makes Librarian trading more interesting and skillful, while also revealing some clues about their history of each village type through the enchantments that are sold there.

• Librarians from different biomes now sell different Enchanted Books
• Each village biome has one special enchantment that is only available from Master Librarians with full XP
• This means that players must visit all seven village biomes to get the full set of villager enchantments
• There are two secret village biomes where villages do not generate
  • A player must build these villages to access their trades!
• Some enchantments have been removed from village trading and must be found in other ways

Wandering Trader Changes

Some players felt that the Wandering Trader had unfair prices and didn't sell many useful items. We have lowered their prices, added more trades and increased the amounts available. The Wandering Trader will also now buy useful items from players, so it's possible to help them on their journey by giving them supplies even if you don't feel like buying anything.

• Wandering Traders now have lower prices and have a higher amount of each item in stock
• Wandering Traders now sell Logs
• Wandering Traders can now buy many items, instead of only selling

Changes

• Diamond Ore is now generated more frequently in the Deepslate layers of the Overworld
• Curing a Zombie Villager now only gives a big discount the first time
  • There is no longer a bonus discount for reinfecting and curing the same Villager multiple times
• Barrier blocks can now be waterlogged by players in Creative mode
  • Water cannot be placed in them or taken out by non-direct interactions such as Dispensers
• Players will no longer be able to crouch while riding vehicles
• Chorus Flower no longer provides support for hanging or standing blocks

Diamond Ore Distribution

In this snapshot, we have increased the amount of Diamond Ore found in the deepest parts of the world. Our goal is to make it more rewarding to mine for Diamonds in the Deepslate layers. We want your feedback on this! Please try out your favorite mining technique and let us know how it feels on this feedback site.

Technical Changes

• The resource pack version is now 16
• The data pack version is now 16
• History of used commands is now saved and accessible across worlds
• Optimized the way chunks are sent to clients to allow players with low-bandwidth internet connections to play on multiplayer servers
• Added support for multi-version packs
• Changed network protocol to allow for more data-driven content in the future
• Added new log-ips option to server.properties
• Added validation for symbolic links in datapacks and resource packs
• When hitboxes are displayed through F3+B, entities that have a passenger will display the passenger's attachment point

Command History

• The last 50 commands that you sent in chat will be remembered across game sessions
• You can access the command and chat history by pressing up or down arrows in the chat
• Regular chat is only persisted within the same game session (leaving a server or world clears them)
• Recent commands are stored in command_history.txt in the game folder

Chunk Sending Optimization

• Chunks are no longer sent over the network to the client in one big continuous batch
• They are instead sent in smaller batches depending on the available bandwidth. This means that:
  • Clients with extremely low-bandwidth connections will not time out while loading the world
  • Clients with low-bandwidth connections can interact with the world while some chunks are still loading
• Only chunks within the client's render distance are now sent

Multi-version Packs

New features have been added to datapacks and resource packs to allow creation of packs that are compatible with multiple versions of game.

Pack Metadata

• Pack metadata now includes an optional field supported_formats which describes a range for pack formats that this pack supports
  • Examples: 16, [16,17], {"min_inclusive": 16, "max_inclusive": 17}
• pack_format field is still required and its format remains unchanged, to allow older game versions to read pack data
  • If supported_formats is present, it must contain the value declared in pack_format
  • Note: since this new information is ignored by older versions of the game, they will always see a "normal", single-version pack, without any extended compatibility

Overlays

• Packs can now contain overlay directories ("overlays")
• Overlays are sub-packs applied over the "normal" contents of a pack
  • These directories have the same layout as the top-level pack, including the assets and data directories
  • Overlays can be applied if they support the client's pack format
  • Overlays can add and replace files, but not remove them
    • For example, if the overlay foo is applied, the file foo/assets/minecraft/textures/bar.png will replace contents of assets/minecraft/textures/bar.png
  • pack.mcmeta and pack.png are ignored in overlay directories
• New section called overlays have been added to pack metadata
  • It contains an entries field, containing a list of overlays
  • Every overlay entry has two fields:
    • formats - range of supported formats
    • directory - overlay directory (allowed characters: a-z, 0-9, _ and -)
• Order of application: overlays are stacked from the bottom to top of the list
  • For example, if a pack has two overlays: "entries": [{"directory":"A", ...}, {"directory":"B", ...}], the game will first look in B, then A and then in the top pack directory

Network Protocol

As part of ongoing work towards more data-driven features, the network protocol has been changed to include a new configuration phase.

• Configuration phase automatically starts after login phase (i.e. after client account has been verified) and lasts until the player joins the world (play phase)
• Clients can stay in configuration phase indefinitely - it's up to server to release it to the world
• Servers can also request clients to re-enter the configuration phase after it has entered the play phase
  • Other players will see such clients as disconnected
• Users in configuration phase will not be visible on the player list
• Actions allowed in configuration phase (moved from play phase)
  • Configuration of data-driven registries
  • Configuration of enabled features
• Actions shared between configuration and play phases:
  • Application of server resource packs
  • Update of tags
  • Exchange of custom packets
  • Ping and keep-alive packets
• The server will now negotiate resource pack in the configuration phase
  • This means that the player will no longer be in world when answering prompts and reloading resources

server.properties

• New option: log-ips (default true)
  • When set to false, will prevent player IPs from being included in the log when players join the game

Symbolic Link Validation

To improve safety, the game will now also detect symbolic links used inside data- and resource packs.

• This feature expands on symbolic link validation in worlds added in the previous release
• The game will now warn users if a pack added via drag and drop contains disallowed symbolic links
• Packs containing disallowed symbolic links will not be visible in UI and commands
• Additionally, directories and files that are not recognized as packs will no longer be copied via drag and drop
• For a detailed explanation, see this help article

Telemetry

• Added a button to the Telemetry Data Collection Screen that links to the Microsoft Privacy Statement

Resource Pack Version 16

• The process of upgrading your pack can be assisted by using this automated Slicer tool
• All textures containing multiple sprites in a sheet for GUI have been split into individual sprites under textures/gui/sprites (automated by Slicer tool)
• All textures in the realms namespace have been moved into the minecraft namespace (automated by Slicer tool)
• villager2.png has been renamed to villager.png (automated by Slicer tool)
• icon/trial_available and realm_status/expires_soon GUI sprites are animated with .mcmeta declarations instead of individual sprites (automated by Slicer tool)
• The bundle tooltip background is now drawn as a nine-sliced sprite
• The icons for the Accessibility, Language, Realms News buttons have been split from their underlying button texture
• The Realms Invite button is now drawn as an overlay on the normal button texture
  • The highlighted texture state for this button has been removed
• The highlighted states for Realms invitation number icons have been removed
• The exclamation marks on the notification\more.png have been removed

GUI Sprite Sheet

• Sprites used in GUI drawing have been split into individual sprite files instead of larger sprite sheets
  • For example, widgets/button.png and widgets/button_highlighted.png have been split from widgets.png
• Each sprite can now be individually overriden by a resource pack instead of replacing the entire sheet
• Sprites are loaded into the gui atlas from the textures/gui/sprites directory

GUI Sprite .mcmeta

• Any sprite can now be animated using .mcmeta files, similar to other atlases
  • icon/trial_available and realm_status/expires_soon are now animated this way
• Sprites in the gui atlas can now configure scaling behavior through a new gui section in .mcmeta files
  • For example, button textures must be scaled based on how big the button should be
  • The gui section in .mcmeta contains one scaling field:
    • type: one of: stretch (default), tile, or nine_slice
    • When stretch, the sprite will be stretched across the desired space
      • No additional fields need to be defined
    • When tile, the sprite will be repeated across the desired space, starting from the top-left
      • width: number of pixels for this sprite to cover on-screen across its width
      • height: number of pixels for this sprite to cover on-screen across its height
    • When nine_slice, the sprite will be sliced into 4 corners, 4 edges, and 1 center slice, which will be tiled across the desired space
      • width: number of pixels for this sprite to cover on-screen across its width
      • height: number of pixels for this sprite to cover on-screen across its height
      • border: the size in pixels that the border slices should cover on-screen, one of:
        • Constant integer for uniform border size on all sides
        • Object containing left, top, right, and bottom

Data Pack Version 16

• Gamerule randomTickSpeed now affects the rate of accumulation of snow and ice the same way it affects crops and other blocks affected by random ticking
• Added a random command
• New form of the execute command: execute if function
• New form of the return command: return run
• Added support for function macros
• Changed Display entities post-teleport interpolation
• Added new attribute generic.max_absorption
• Renamed belowName value in display slot argument in scoreboard command to below_name
• Game event changes
• New tags

Commands

random

A new command for randomizing values and controlling random sequences. The value and roll forms can be used to draw a random value. In the case of roll, the resulting value is also shown in chat for all players.

Syntax:

random value|roll <range> [<sequenceId>]
random reset *|<sequenceId> [<seed>] [<includeWorldSeed>] [<includeSequenceId>]

Parameters:

• range: A range of values to randomize between, inclusively
  • For instance, 1..6 is a regular D6 roll
• sequenceId: The name of a random sequence to sample or reset
• seed: A seed to use for the random sequence after reset
• includeWorldSeed: A boolean [default: true] specifying whether to include the world seed when seeding the sequence
  • false means the sequence will evaluate to the same regardless of which world the command is run in
• includeSequenceId: A boolean [default: true] specifying whether to include the sequence ID when seeding the sequence
  • false means all sequences will evaluate to the same regardless of which name they have

By default, all sequences are seeded as 0, true, true. Using * instead of a sequence ID resets all sequences and sets the default parameters.

If no seed is specified, the sequence resets to the default parameters.

Note that random value|roll <range> used without a sequence id is available to non-operator players.

execute if function

A new execute sub-command that runs a function or function tag and matches the return value(s). If a tag is given, all functions run regardless of the results of prior functions. Syntax:

execute if|unless function <function> <continuation>

Parameters:

• function: The function or tag to run

Matching

The matching of the result value of the function(s) that run:

• At least one of the functions must succeeed for the match to succeed
• A succeessful call is defined as a function that:
  • Uses the return command to return a value
  • The return value is not 0

return run

A new form of the return command is now available, return run. Syntax:

return run <command>

This takes the result value from running the specified command and returns that as the return value of the function. In all other aspects, it works like return with a specified return value. If the given command fails, the return value is 0.

Functions

• A single backslash \ as the last non-whitespace character of a line now allows a command to be continued on the next line
  • Leading and trailing whitespace of the following line are stripped before appending

Macros

Functions can now contain macro lines, making them Function Macros.

• Any line beginning with $ (as the first non-space character) marks a macro line
• A macro line also contains one or more substitutions in the form of $(variable)
• When calling a function macro a compound with data for all argument variables must be provided

Calling Function Macros

The function command has new forms:

function <id> <compound> function <id> with <data source> [<path>]

New Arguments:

• compound: A data compound, enclosed in {}
• data source: A data source specification, like what could already be used for data get
• path: An NBT path specification

Notes:

• The data source and path must specify a compound data entry
• The compound must contain one entry for each variable used in the macro
• More data may be present in the compound and if so is ignored
• Calling a non-macro function with a data compound is silently ignored
• When a macro is called, the values provided are substituted in place of the variable specifications and the resulting commands are executed
• Any syntax errors in the lines resulting from variable substitution result in the entire function call being skipped

Performance Considerations

Using a macro means commands must be re-evaulated after variable substitution. This has an extra cost compared to running pre-parsed functions.

Regular commands (non-macro lines) are still pre-parsed. Only commands with variable substitutions in them are parsed when a macro is called and the game will attempt to cache the result of a certain parameter set being used in a call.

This makes repeated calls with the same parameter set cheaper than new calls with different parameters, but an overhead still remains compared to regular functions. Note that only the values references by macro as parameters are included in this cache, so any extra data in the provided compound is ignored.

Display Entity Interpolation

• Display entities now start updating their client-side position and rotation on the first tick after an update
  • In previous versions, updates were applied in the same tick, causing uneven motion
  • New behavior is now similar to armor stands, mobs and players
• On the server, position and rotation are still updated immediately
• Duration of this interpolation is controlled by the field teleport_duration
  • 0 means that updates are applied immediately
  • 1 means that the display entity will move from current position to the updated one over one tick
  • Higher values spread the movement over multiple ticks
  • Please note that this value is clamped to avoid glitches due to periodic position updates
  • The new value will apply only to position and rotation changes made after it changed
    • That means any current movement will continue unchanged
• Note: behavior while riding remains unchanged from previous versions

Attributes

• Added new attribute generic.max_absorption
  • generic.max_absorption acts similar to generic.max_health, but instead of being the upper bound for Health, it is the upper bound for AbsorptionAmount
  • The mob effect absorption increases generic.max_absorption as well as fills the AbsorptionAmount to the max when applied

Game Events

• entity_roar and entity_shake game events have been removed and replaced with entity_action game event

Tags

• Added no_knockback damage type tag which causes knockback to not be caused by the damage itself
  • Used in Vanilla for damage that is caused by events, such as explosions, which apply knockback separately
• Added non_controlling_rider to represent entities that don't override their vehicles movement control
• Added concrete_powder block tag for Concrete Powder blocks
• Added camel_sand_step_sound_blocks block tag for blocks that produce entity.camel.step_sand sound

Fixed bugs in Snapshot 23w31a

• MC-29371 Several buttons and icons use the old tooltip design upon being hovered over
• MC-67532 Bottom 2 rows of pixels in selected hotbar slot texture don't appear in game
• MC-69387 The "/item" command cannot replace items within jukeboxes
• MC-80876 Entity riding vehicle has always same offset
• MC-85582 Entity models in the inventory can render outside the boundaries of the black box
• MC-93320 Water freezes even if randomTickSpeed is 0
• MC-121772 Can't scroll while holding SHIFT on macOS
• MC-122296 Horizontal scrolling does not work on Mac [Magic Mouse]
• MC-122547 Barriers can produce fall particles
• MC-140646 Text fields don't scroll while selecting text with Shift
• MC-147766 Shift key stays pressed until press any other key
• MC-164080 Entities riding on Ghast are partially or fully inside it
• MC-181190 The discount for curing a villager is multiplied if the villager is reinfected and cured again
• MC-190815 Shulker boxes don't conduct redstone when open, but don't trigger redstone updates when opened
• MC-215768 Sculk sensors do not detect turtles clearing away sand
• MC-228420 World not loading / falling through the world when joining a server / travelling between dimensions / respawning
• MC-230732 Minecraft local difficulty setting is calculated/displayed wrongly when running a world in a server
• MC-232840 Baby zombie legs clip through heads of mobs they are riding
• MC-242076 The skeleton of a spider jockey sits "inside" of spider model rather than on top of the spider
• MC-242092 Texture map for magma cube (magmacube.png) has unused pixels
• MC-242395 Texture map for the blaze (blaze.png) contains unused pixels
• MC-242396 Texture map for armor stand (wood.png) contains unused pixels
• MC-242397 Texture maps for cow, red & brown mooshroom (red/brown_mooshroom.png & cow.png) contain unused pixels
• MC-242398 Texture maps for the sheep and sheep fur (sheep.png & sheep_fur.png) contain unused pixels
• MC-242591 Texture maps for the Llama and Trader Llama (white/gray/creamy/brown.png) contain unused pixels
• MC-242592 Texture map for the polar bear (polarbear.png) contain unused pixels
• MC-249109 Sniffers, frogs, goats, and camels don't panic when attached to leads
• MC-252231 Warm Frog texture has inconsistent pixels
• MC-254100 Iron golem spawn rate decreased
• MC-255967 Old chunks that would have Deep Dark biomes below Y=0 if generated newly doesn't completely generate; only Ancient Cities are spawned
• MC-256466 Raft entities are named boats
• MC-256482 Sculk sensors are not activated upon camels standing up or sitting down
• MC-256485 Camels that spawn within villages can spawn inside blocks
• MC-256641 Bamboo fence and fence gate aren't grouped with the other fences and fence gates in the crafting table
• MC-256675 Z-fighting occurs between the legs of the camel and the texture of the saddle when it is sitting
• MC-256690 Camels attempt to stand up when blocks are placed over them, causing them to take suffocation damage if blocks are at eye level
• MC-257342 You get slowed down when riding a camel in a 3 block tall area
• MC-257431 Bamboo fence gates utilize the wrong textures
• MC-257628 Sculk sensors are not activated upon camels dashing
• MC-258379 Parity issue: The locations of camels' ears differ across platforms
• MC-258620 Piglins barter every 121 game ticks instead of every 120 game ticks
• MC-259152 Player's model displayed in inventory while sneaking differs between the versions
• MC-259382 Message "Failed to get element" is logged repeatedly when giving yourself armor with invalid trimming pattern or material
• MC-259401 Lapis lazuli icons in enchanting table and smithing table are inconsistent
• MC-259452 Baby Camel's laying down/getting up sounds are not sped up
• MC-259769 Firework explosions no longer deal knockback to entities
• MC-259794 Armor enchanted with curse of binding cannot be swapped via right-clicking in creative mode
• MC-260054 Pink Petals hitbox does not adjust to contents
• MC-260058 Pick Block does not work properly for blank decorated pots
• MC-260085 Particles are created when using a brush on a barrier
• MC-260096 Decorated pots don't have creative mode tooltips
• MC-260485 The "/item" command cannot remove items within chiseled bookshelves
• MC-260490 Passenger's riding position is too low for non-default-sized mobs
• MC-260604 Terrible loudness following consecutive use of /fill
• MC-260675 Decorated pots render blank on the first frame after being placed
• MC-260968 The narrator does not narrate the word "Experimental" in the world selection screen
• MC-261123 item_display entity breaks certain mobs' AI when being used as a passenger
• MC-261182 Sign color looks different in world and in editing screen
• MC-261369 Washed banner does not stack with blank banner
• MC-261411 All Smithing Templates share the same translation key
• MC-261420 Sculk sensor and calibrated sculk sensor don't detect a witch drinking a potion
• MC-261427 Sculk sensors and calibrated sculk sensors don't detect totem of undying activating
• MC-261440 Resizing the window makes it so you can't change names in anvils
• MC-261611 Placing blocks against a waxed sign does not play the block's placement sound
• MC-261657 Sculk sensor range is still spherical, creating different outputs from within a given block
• MC-261739 Bamboo raft next to visually half blocks z-fights
• MC-261965 The "Glow and Behold!" advancement is granted when interacting with empty signs while holding glow ink sacs, despite no glow ink sacs being consumed
• MC-262108 Smithing table GUI issue with custom recipes
• MC-262132 Pigstep music disc is in wrong location in the creative menu
• MC-262295 Warped and Crimson hanging signs uses their respective plank sounds, despite their stripped stems having unique sounds
• MC-262436 Copying a pot in creative does not save NBT data
• MC-262442 Camels stand a bit too close to players that are tempting them
• MC-262613 Mobs can't control some rideable mobs
• MC-262615 Ridden camels need to be equipped with a saddle before they can be moved by mob control which is inconsistent with other rideable mobs
• MC-262620 Llamas and trader llamas need to be tamed in order to be ridden by the mob which is inconsistent with other rideable mobs
• MC-262636 Mobs with passengers that are slimes or magma cubes can't move and don't function correctly
• MC-262638 When a "Size:0" slime and magma cube rides on some mobs the rendering position is too low
• MC-262720 One of the pink petals' stems has an incomplete model
• MC-262751 Blank decorated pot's NBT depends on method used to obtain it
• MC-262766 NBSP is a valid invisible character that can be added into Book titles so that they have blank names
• MC-262804 Players' swimming animations are jittery for other players
• MC-262947 The "Smithing with Style" advancement doesn't grant experience upon completion
• MC-263011 Sniffers can sniff out and follow players from incredibly large distances
• MC-263049 Camels indefinitely dash while in lava
• MC-263126 Sponges no longer make a sound when absorbing water
• MC-263200 Entities riding baby sniffers render too high
• MC-263283 Loading a 1.12.2 structure block with signs on 1.20 removes the text
• MC-263313 You cannot use the TAB key to initially create a realm
• MC-263322 When a camel walks on suspicious sand, the sound produced is "camel steps" instead of "camel sands"
• MC-263387 The chat scroll bar no longer renders
• MC-263430 Memory leak in TickingTracker
• MC-263833 Minecraft is incorrectly assuming it is able to set the window icon on Wayland
• MC-263879 Open shulker boxes transmit redstone power
• MC-264356 Sniffers attached to a lead will dig in the same spot forever, ignoring "explored positions"
• MC-264467 GUI texture "villager2.png" contains unused sections
• MC-264468 GUI texture "legacy_smithing.png" still present in game files despite not being used anymore

1.20.1

It's barely been a week, and we're already releasing 1.20.1 for Minecraft: Java Edition. This hotfix update contains fixes for critical issues found in the 1.20 release.

Happy mining!

Fixed bugs in 1.20.1

• Fixed a disk permissions-related crash
• MC-263244 The realms invitation icon that appears on the realms button in the main menu is displayed incorrectly
• MC-263245 Buttons in the "Add Realm" interface within the realms menu no longer render
• MC-263296 Game softlocks after cancelling joining a server
• MC-263340 Incorrect Protochunk#setStatus call on chunk generate

1.20.1-rc1

We're now releasing a Release Candidate for a first minor update for Minecraft 1.20. This minor update will be a stability issue to fix some critical issues found after the release of Minecraft 1.20.

Fixed bugs in 1.20.1 Release Candidate 1

• Fixed a disk permissions-related crash
• MC-263244 The realms invitation icon that appears on the realms button in the main menu is displayed incorrectly
• MC-263245 Buttons in the "Add Realm" interface within the realms menu no longer render
• MC-263296 Game softlocks after cancelling joining a server
• MC-263340 Incorrect Protochunk#setStatus call on chunk generate

1.20

What, is there something special happening today? Hold on, let me grab my calendar book from my chiseled bookshelf.

Oh, it's time for Trails & Tales! How could I forget? Time to equip your new brush and ride your camel off to new adventures!

New Features

• All features and changes from the "Update 1.20" experimental pack are now part of the game
• Added Archaeology
• Added Sniffer mob, Torchflowers and Pitcher Plants
• Added Camel mob
• Added Smithing Template items and redesigned the Smithing Table
  • Added a new armor trimming system to visually customize your armor
  • Changed how Netherite equipment is crafted
• Added the Cherry Grove biome and Cherry Wood Set
• Added the Bamboo Wood Set
• Added the Chiseled Bookshelf block
• Added Hanging Signs
• Improved customization options for Signs
• Added the Calibrated Sculk Sensor block
• Vibration resonance functionality has been added to Blocks of Amethyst
• Added playable mob sounds with Mob Heads on Note Blocks
• Added Piglin Mob Head
• New music tracks added to Cherry Groves, Desert, Jungle, Badlands, and Flower Forest biomes
• New Trails & Tales Advancements
• Added support for Windows Aarch64/ARM64

Archaeology

• Added craftable Brush item
• Added Suspicious Sand and Suspicious Gravel
  • Suspicious Sand can be found in Desert Temples, Desert Wells and Warm Ocean Ruins
  • Suspicious Gravel can be found in Cold Ocean Ruins and Trail Ruins
  • These fragile blocks are hard to spot and easy to destroy, so be careful!
  • Brushing Suspicious Sand or Suspicious Gravel with a Brush will extract objects that were buried long ago
• Added the Trail Ruins, a buried structure from a lost culture
  • Four types of Armor Trim Templates can be found here
  • Trail Ruins can be found in Taigas, Snowy Taigas, all Old Growth forest biomes and Jungles
  • A new music disc can be found by brushing suspicious blocks in this structure
    • When put in a Jukebox, "Relic" by Aaron Cherof is played
• Added Pottery Sherds
  • Pottery Sherds have pictures on them
  • A total of 20 sherd have been distributed between the 5 Archaeology sites: Desert Wells, Desert Temples, Cold Ocean Ruins, Warm Ocean Ruins, and Trail Ruins
  • They cannot be crafted, and are only found by brushing Suspicious Sand or Suspicious Gravel

Decorated Pots

• Crafting four Pottery Sherds together will create a Decorated Pot with a picture on each side
• Brick items can be used instead of Pottery Sherds in the Decorated Pot recipe
  • The sides that were made from Brick items will not have pictures
• Smash a Decorated Pot with any block-breaking tool to break it apart and get the Pottery Sherds back
  • Hitting the pot with bare hands, silk touch tools, or any other item will drop an intact pot instead
• Crafted Decorated Pots with at least one pattern have a hover tooltip displaying the Sherd & Brick ingredients

Sniffer

• The Sniffer is the mob vote winner of Minecraft Live 2022
• Sniffers are passive, friendly mobs
• Sniffers sniff the air and occasionally dig for seeds, which produces a Torchflower Seed or a Pitcher Pod item
• Sniffers can only dig grass and dirt-like blocks
• Sniffers can be tempted by, and bred with Torchflowers Seeds

Sniffer Egg

• Can be found by brushing the Suspicious Sand of Warm Ocean Ruins
• When two Sniffers breed they do not immediately spawn a Snifflet; instead, a Sniffer Egg is dropped
• When placed in the world, the Sniffer Egg will hatch after some time
  • When placed on Moss, the Egg will hatch in approximately 10 minutes
  • On all other blocks, it will hatch in approximately 20 minutes

Torchflowers

• The Sniffer can occasionally sniff up a Torchflowers seed, and it can be used to breed two Sniffers
• The Torchflower seed can be planted on Farmland and grows into a Torchflower
• The full-grown flower can be harvested and replanted
• The Torchflower can be crafted into Orange Dye

Pitcher Plant

• The Sniffer can occasionally sniff up a Pitcher Pod item
• The Pitcher Pod, when planted on Farmland, grows into a Pitcher Crop
• The Pitcher Crop has five growth stages
• Once fully grown, the Pitcher Crop can be harvested, yielding a two-block-tall Pitcher Plant
• The Pitcher Plant can be crafted into Cyan Dye

Camel

• Camels can be equipped with a Saddle and ridden by two players
• Camels spawn naturally when Desert Villages generate
• Camels can be tempted by holding Cactus
• Feed Cactus to Camels to breed them
• Camels are tall
  • Most hostile mobs will not be able to reach you when you are on a Camel
  • They can walk over Fences and Walls
• Camels randomly sit down
  • While sitting, it is difficult to convince them to move
• Camels can either walk slowly or sprint quickly
• They can also dash forward but will lose stamina for a while when doing so

Smithing

• Smithing Tables have been redesigned into a workstation for physical equipment upgrades and modifications
• Alongside slots for combining a piece of equipment and materials, there is now a required slot for an item type called Smithing Template
• Smithing Templates define what type of upgrade you will be making to a piece of equipment
  • It specifies both what type of items you can upgrade, and which ingredients are valid to customize the upgrade
  • There are currently two categories of Smithing Templates: Armor Trim and Netherite Upgrade
• Smithing Templates are consumed when used to upgrade an item in the Smithing Table
• You can craft a copy of a Smithing Template in the Crafting Table with 7 diamonds + 1 block of material that the template is made out of + 1 smithing template, which will output 2 of the same Smithing Template

Netherite Equipment

• Netherite equipment crafting now also requires a Netherite Upgrade Smithing Template
• Netherite Upgrade Smithing Templates can be found randomly in all Bastion Remnant chests
  • Every Treasure Room Bastion Remnant will contain 2 Smithing Templates
• This change was made for a variety of reasons:
  • Increase the time players utilize Diamond equipment before Netherite
  • Make Netherite equipment more significant achievement in the game's progression
  • Adapt Netherite more naturally into the new Smithing Table crafting system

Armor Trims

• You can now visually customize your armor with a variety of unique trims at the Smithing Table
• Armor trims are purely visual with no gameplay benefits
• Armor trims can be applied to Helmets, Chestplates, Leggings and Boots
  • All trim patterns are visually the same on an armor's item icon, but the color will still change based on the trim material
  • To check which trim pattern a piece of armor has, you can hover over it in the inventory
• Armor Trim Smithing Templates can be found all throughout the world, and each of the following structures contain their own unique Smithing Templates:
  • Trail Ruins: Wayfinder, Raiser, Shaper, and Host Armor Trims
  • Pillager Outpost: Sentry Armor Trim
  • Desert Pyramid: Dune Armor Trim
  • Shipwreck: Coast Armor Trim
  • Jungle Temple: Wild Armor Trim
  • Ocean Monument: Tide Armor Trim
  • Ancient City: Ward and Silence Armor Trims
  • Woodland Mansion: Vex Armor Trim
  • Nether Fortress: Rib Armor Trim
  • Bastion Remnant: Snout Armor Trim
  • Stronghold: Eye Armor Trim
  • End City: Spire Armor Trim
• Smithing Templates are found in chests in their respective structure
  • Trail Ruins have no chests, Smithing Templates are instead found by brushing Suspicious Gravel
  • The Ocean Monument has no chests, Elder Guardians sometimes instead drop a Smithing Template upon death
• Some Armor Trim Smithing Templates are rarer than others, so be on the lookout for them to impress your friends!
• An armor trim has two properties: a pattern and a material
  • The pattern is defined by the Smithing Template used to apply the trim, and represents the visual pattern of the trim
  • The material is defined by which ingredient you used to apply the trim, and controls the color of the trim
• The viable ingredients you can use to define the color of your armor trim are the following:
  • Iron, Copper, Gold, Lapis, Emerald, Diamond, Netherite, Redstone, Amethyst, Quartz

Cherry Groves

• Added a new Cherry Grove biome, with pretty cherry blossom trees
  • The biome can be found in the mountains, in similar places as Meadows
• Added a new Cherry wood set, with all the corresponding wooden things you can craft from it
• Pink particles fall from beneath Cherry Leaves
• Added a new Pink Petals block with lots of pink flowers on the ground
  • Each Pink Petal block can contain up to 4 petals
  • Using Bone Meal on it increases the number of petals
  • Placing a Pink Petal into an already placed block increases the number of petals
  • Drops the number of petals in the block when mined

Bamboo Wood Set

• Added a new Bamboo wood set, with all the corresponding wooden things you can craft from it
• Block of Bamboo can be crafted from 9 Bamboo and can be stripped like other wood logs
• Bamboo Planks crafted from Block of Bamboo yield only 2 planks compared to 4 for wood logs
• Added a new "Mosaic" plank variant that is unique to Bamboo called the Bamboo Mosaic
  • It can be crafted with 1x2 Bamboo Slabs in a vertical strip
  • You can craft Stair and Slab variants of Bamboo Mosaic
  • Bamboo Mosaic blocks cannot be used as a crafting ingredient where other wooden blocks are used, but they can be used as fuel
• Added a unique Bamboo Raft and Bamboo Chest Raft which can be crafted like normal boats, but with Bamboo Planks
  • They function the same as ordinary boats, but have a unique look to them

Chiseled Bookshelf

• A new, chiseled variation of the Bookshelf
• Crafted with 6 planks and 3 wooden slabs
• Can store Books, Book and Quills, Written Books, Enchanted Books, and Knowledge Books
  • Holds up to 6 books
  • These can be added or removed from any slot by targeting the specific slot
• The Comparator signal strength corresponds to the number of the last book that was inserted or removed
  • The numbering of book slots starts from 1 at the top-left, and increments from left-to-right
• Works with Hoppers

Hanging Signs

• Hanging Signs are a more expensive version of normal Signs
  • Crafted with 2 chains and 6 stripped logs of your preferred wood type
  • Crafting results in 6 Hanging Signs
• Can be hung up in the following ways:
  • Underneath a block that can provide support in the center, like a full block or a fence
  • Attached to the solid side of a block
  • Attached to the side or underneath another Hanging Sign
• Unlike normal Signs, they cannot be placed directly on the ground without support from the side or above
  • However, Hanging Signs that have a horizontal bar will not pop when the supporting block is removed

Signs

The following changes have been made for both Signs and Hanging Signs.

• Sign text can now be edited after being placed in the world
  • This can be done by interacting with the Sign
  • Signs with non-text chat components can not be edited
• Both sides of the Sign can now have separate text and colors, allowing for further customization options
  • By default, a Sign will prompt you to input the front side's text when placed
  • To apply text to the back-side, you must walk to the other side and interact with that face to edit it
• Signs can now also be waxed with Honeycomb, preventing any further edits to its text
• Opening the sign edit screen in singleplayer no longer pauses the game

Calibrated Sculk Sensors

• A new variant of Sculk Sensors that allows you to filter vibrations based on their frequency level
• They are not found naturally and can only be crafted with 1 Sculk Sensor and 3 Amethyst Shards in the Crafting Table
• One side of the Calibrated Sculk Sensor can receive a redstone signal as input
  • The strength of that redstone signal is the only vibration frequency the Sculk Sensor will listen to
• They have a combined active and cooldown phase that lasts 20 game ticks
  • They output their redstone signal for the first 10 game ticks
• They can detect vibrations up to 16 blocks away

Vibration Resonance

• Blocks of Amethyst have a new behavior when placed adjacent to Sculk Sensors
  • If that Sculk Sensor receives a vibration, the Block of Amethyst will re-emit its frequency as a separate vibration at its location
• This behavior is called Vibration Resonance, and allows players to move vibration frequencies across long distances without having to recreate the vibration naturally

Playable Mob Sounds

• When placing a Mob Head on a Note Block, that Note Block will now play one of the ambient sounds of that mob when played by a player or powered by Redstone
• Mob Heads can be placed on top of Note Blocks without sneaking

Piglin Mob Head

• Piglins will now drop their heads when killed by a charged Creeper
• Placing the Piglin head on a Note Block will play one of the Piglin's ambient sounds
• The Piglin head will flap its ears when powered by Redstone, or when worn by a player while walking

New Music

• Added the following new music tracks by Aaron Cherof to Cherry Groves, Desert, Jungle, Badlands, and Flower Forest biomes:
  • A Familiar Room
  • Bromeliad
  • Crescent Dunes
  • Echo in the Wind
• Added a new music disc with the track "Relic" by Aaron Cherof, found in Trail Ruins

Windows Aarch64/ARM64 support

• Minecraft Java Edition is now fully supported on Windows devices using an Aarch64/ARM64 architecture, such as the Windows Surface Pro X

Advancements

New Husbandry Advancements

• Smells Interesting : Obtain a Sniffer Egg
• Little Sniffs : Feed a Snifflet (requires Smells interesting)
• Planting the Past : Plant any Sniffer seed (requires Little sniffs)

New Adventure Advancements

• Respecting the Remnants : Brush a Suspicious block to obtain a Pottery Sherd
• Careful Restoration : Make a Decorated Pot out of 4 Pottery Sherds (requires Respecting the Remnants)
• Crafting a New Look : Craft a trimmed armor at a Smithing Table
• Smithing with Style : Apply these Trim Smithing Templates at least once: Spire, Snout, Rib, Ward, Silence, Vex, Tide, Wayfinder (requires Crafting a New Look)
• The Power of Books : Read the power signal of a Chiseled Bookshelf using a Comparator

Changes

• Changes to Sculk Sensor block behaviors
• Vibration frequencies of many actions in the game have been tweaked
• Colored Wool, Carpets and Beds can now be dyed to any other color
• Replaceable blocks no longer block the connection between enchanting tables and bookshelves
• Wither effect particle and Potion of Slow Falling color have been adjusted to make them more distinguishable
• Updated step sounds
• Updated Advancements
• The main menu background is now a Trails & Tales panorama
• Updated the Minecraft Java Edition logo
• Updated the Minecraft Realms logo
• The game's application icon has been updated
  • This will be a Grass Block in release versions, and a Dirt Block in snapshot versions
• GUI can be scaled on the Video Settings screen by holding Ctrl and scrolling the mouse wheel
• Updated the credits
  • Added the ability to scroll upwards by pressing the up arrow key
• The game will now display a message box on startup if user enabled text-to-speech functionality, but it is not available
• Removed Herobrine

Sculk Changes

• If a vibration is scheduled to be received by a Sculk Sensor or Sculk Shrieker, they will stay queued until all adjacent chunks are loaded and ticking
  • Prevents vibration resonance setups from breaking when unloading their chunks from a distance
• Waterlogging a Sculk Shrieker will now silence their shriek sounds
• Sculk Sensors' default redstone output has been modified to be more reliable for distance calculations
• Sculk Sensors and Calibrated Sculk Sensors now strongly power the block they are placed on
• Both types of Sculk Sensors now stay in their Cooldown phase for 10 ticks, with other phase timings being adjusted to compensate

Sculk Sensor Phases

• Sculk Sensors and Calibrated Sculk Sensors have three phases: Inactive, Active and Cooldown
• The default phase is Inactive
  • This phase lasts indefinitely until the block receives a vibration
  • During this phase, the block is able to listen to nearby vibrations until one has been scheduled
• When a scheduled vibration is received, the block switches to the Active phase
  • This phase lasts 30 game ticks for Sculk Sensors, and 10 game ticks for Calibrated Sculk Sensors
  • During this phase, the block stops listening to nearby vibrations, wiggles its tendrils and emits a redstone signal and light
• After the Active phase has finished, the block switches to a Cooldown phase
  • This phase lasts for 10 game ticks
  • During this phase, the block keeps wiggling its tendrils, but no longer emits a redstone signal nor light
  • Finally, once this phase is finished, the block will switch back to the Inactive phase
• Previously, some of these phases had different timing values:
  • Active: 40 game ticks for Sculk Sensors and 20 game ticks for Calibrated Sculk Sensors
  • Cooldown: 1 game tick for both types of Sculk Sensors
• These phase timings were tweaked so that it is less common for activated contraptions to recursively activate the Sculk Sensor that powered them

Vibration Frequencies

In preparation for the Calibrated Sculk Sensor, vibration frequencies have been greatly simplified to prevent unwanted interference. The following are category descriptions for each frequency and the expected events that they correspond to:

1. Movement in any medium (land, water and air)
2. Landing on any surface (land or water)
3. Item interactions
4. Gliding with an elytra or unique mob actions (Ravager roar, Wolf shaking, etc)
5. Dismounting a mob or equipping gear
6. Mounting a mob or interacting with a mob
7. Mobs and players getting damaged
8. Consuming items (drinking and eating)
9. Blocks 'deactivating' (door close, chest close, button unpress, etc)
10. Blocks 'activating' (door open, chest open, button press, etc)
11. Blocks changing (cauldron water level rising, adding food to campfire, etc.)
12. Blocks being destroyed
13. Blocks being placed
14. Mobs and players teleporting or spawning
15. Mobs and players dying or an explosion

Step Sounds

• Walking on a block will now always play a step sound
  • It was previously not the case if you were walking along the edge of a block with air or fluid besides it
• Walking on the ocean floor will produce a step sound for the block you are walking on at a lower volume and pitch
• When walking on Carpets, Snow, Nether Sprouts, Warped Roots, and Crimson Roots, a combination of step sounds will be played
  • The top-most block you are walking on is played as normal
  • The block underneath is played at a lower volume and pitch

Advancements

• Breeding Camels and Sniffers now count for "The Parrots and the Bats" and are now required for "Two by Two"
• Hanging Signs now count for "Glow and Behold"
• Visiting a Cherry Grove is now required for "Adventuring Time"

Technical Changes

• Improved performance of the light engine
• The data pack version is now 15, accounting for sign data format, item display orientation and advancement changes
• Removed update_1_20 feature flag and built-in datapack - features are no longer experimental
• Added a return command
• Tweaked display entity interpolation
• Added a capped rule structure processor that limits the number of replaced blocks for a structure piece to a configured maximum
• Configuring block entity fields in a rule processor rule is now delegated to a referenced block_entity_modifier instead of the previously fixed output_nbt configuration
• Random sequences for loot tables are now deterministic
• Added a reference loot table function
• Loot table condition/predicate changes:
  • Renamed alternative to any_of
  • Added all_of
• Advancement trigger changes:
  • Added recipe_crafted
  • Changed format of placed_block, item_used_on_block and allay_drop_item_on_block triggers
• Ingredients in array form are now also allowed in smithing_trim and smithing_transform recipes on fields template, base and addition
  • Those fields also allow empty arrays, which signalize that slot needs to be left empty
• Added new damage types: outside_border and generic_kill
• Game events have changed vibration frequency and some have been removed
• The resource pack version is now 15, accounting for the font and credits update
  • Updated the sprite layout of minecraft.png
  • Removed the overriding minecraft.png from the Programmer Art resource pack
  • Updated the sprite layout of invite_icon.png
  • legacy_unicode glyph provider has been removed
  • Bitmaps used by uniform font have been removed
  • uniform font has been updated to use Unifont 15.0.06
    • That changes shape of multiple characters, while also adding support for new ones
    • Combining characters no longer include circle overlayed over them (so M◌̆ now renders as M ̆)
  • Added second level of organization of entries in credits.json on top of titles, called disciplines
• Font textures are included in debug texture dump (F3 + S)
• Added new font glyph providers: unihex and reference, removed legacy_unicode
• Added support for Quick Play
• Removed the server & port commandline arguments as their functionality has been replaced by Quick Play
• Updates to telemetry
• Changed encoding of server.properties to UTF-8
• Added validation for symbolic links in world saves

Light Engine

The light engine is responsible for calculating the brightness of each block in the world. Light is calculated during world generation as well as updated when a block is changed in the world. Behavior of the light engine has not been changed.

• The performance of calculating light has been improved
  • Reduces one source of lag spikes when crossing chunk borders
  • Improves FPS in situations when a lot of light updates occur
  • Improves how quickly chunks can be generated

Commands

return

The return command can be used to control execution flow inside functions and change their return value. Effects:

• Remaining separate top-level commands in the currently executing function (if any) are skipped
• The result value of the function command that triggered the function is changed from the number of commands executed to value
• The result value of the return command is also value

Syntax:

return <value>

Parameters:

• value: An integer return value

data

• string data sources now accept negative boundaries, which are interpreted as index counted from the end of the string

Display Entity

Interpolation Changes

• Previous values are always discarded if interpolation_duration is 0
• Made sure that render properties are applied at the same time (so block_state is applied at the same time as transformation, i.e. at the next tick after receiving an update)
• Display entities are not rendered until their initial data is received. That means display entities might not be shown on the first tick.
• Note: due to how the game handles updates, changes to entities made after summoning might be delivered to clients within a later tick

Rendering Changes

• item_display items have been rotated 180 degrees around the Y axis to better match the transformation that is applied when rendering items on an Armor Stand head and in Item Frames
  • For reference, the order of transformations applied to model (starting from innermost) is item_transform, rotate Y 180, transformation field, entity orientation (billboard option + Rotation field + Pos field)

Structure post-processors

Capped post-processor

• A capped post-processor has been added which can limit how many blocks a delegated post-processor randomly transform in a structure
• This can be used to configure a structure piece to have an exact amount of specific blocks, instead of using random distribution
• The capped post-processor has following required parameters:
  • delegate A post-processor which performs the actual block transformation
  • limit Maximum amount of blocks that the delegated post-processor can transform
    • The blocks inside a structure are all randomly passed to the delegated post-processor until it has transformed the limited amount
    • Either constant or random number generator sampled during post-processing

Rule post-processor block entity configuration

• Previously a rule could specify an optional fixed output_nbt which would be added to the processed output block entity
• This field has now been changed to reference a block_entity_modifier
• Existing block_entity_modifier's are:
  • passthrough Retains existing fields on the block entity
    • This is the default if no block_entity_modifier is specified
  • append_static Similar to previous output_nbt this provides fixed fields to add to the block entity
    • A minor change is that this modifier appends configured fields to the processed block instead of replacing existing fields
  • clear Removes any existing fields on the block entity
  • append_loot Appends a loot table and seed to the block entity through required parameter:
    • loot_table Referenced loot table to add to block entity as LootTable field
    • Field LootTableSeed is also added to the block entity using random seeded by block position

Loot Tables

Random Sequences

The game now uses named random sequences to deterministically produce loot for loot tables. Each random sequence produces a unique sequence based on the world seed and sequence ID, which means a loot table will produce the same results when ran with the same parameters in the same world.

The ID of the random sequence to use for a loot table is specified in a new optional field called random_sequence. If no sequence name is given, loot is drawn using a non-deterministic random source.

reference

New function reference allows functions to call sub-functions (similar to reference condition).

Fields:

• name - location of function to call

any_of/all_of

• Loot condition alternative has been renamed to any_of
• Added new loot condition all_of that passes only when all sub-conditions pass
  • Has the same syntax as any_of

Advancements

New Triggers

recipe_crafted

• Triggered when crafting a recipe
• Conditions:
  • recipe_id - the resource location of the recipe crafted
  • ingredients - an array of predicates for the item stacks used in the recipe
    • A single item stack can only be used to fulfill one predicate
    • Each predicate needs to be fulfilled to trigger the advancement. This allows for separation between recipes that have same identifier but use different ingredients.
    • This field is optional. When not provided, or left empty, only the recipe_id will dictate the success of the trigger

Changed Triggers

• All fields in placed_block, item_used_on_block and allay_drop_item_on_block have been collapsed into a single location field
• The new location is similar to the player field - it is a list of loot conditions/predicates
• All conditions in this list must match for a trigger to run
• Conditions are evaluated in a new loot context called advancement_location. It has access to:
  • Player as this entity
  • Position of the placed block
  • Block state of the placed/interacted block
  • Held/used item as "tool"
• Migration guide:
  • Contents of old location field should be migrated to location_check condition
  • Contents of item field should be migrated to match_tool condition
  • Contents of block + state fields should be migrated to block_state_property condition

Example (from make_a_sign_glow advancement):

Before:

{
    "conditions": {
        "item": {
            "items": [
                "minecraft:glow_ink_sac"
            ]
        },
        "location": {
            "block": {
                "tag": "minecraft:all_signs"
            }
        }
    },
    "trigger": "minecraft:item_used_on_block"
}

After:

{
    "conditions": {
        "location": [
            {
                "condition": "minecraft:match_tool",
                "predicate": {
                    "items": [
                        "minecraft:glow_ink_sac"
                    ]
                }
            },
            {
                "condition": "minecraft:location_check",
                "predicate": {
                    "block": {
                        "tag": "minecraft:all_signs"
                    }
                }
            }
        ]
    },
    "trigger": "minecraft:item_used_on_block"
}

Damage Types

• Players outside the world border are now hurt by the damage type outside_border instead of in_wall
• Forcibly removing an entity using the /kill command now uses damage type generic_kill instead of out_of_world

Tags

Block Tags

• Removed replaceable_plants since it was only used as a subset of the blocks for the tag above, and not as universally
• Added replaceable_by_trees to better express blocks that are replaced when the tree grows through them
• Added replaceable with all the blocks that can be replaced
  • This tag only represents the internal state of the game, changing this tag does not make blocks replaceable
• Added sword_efficient to represent blocks that are broken 50% faster by a sword than normal
• Added maintains_farmland to represent which blocks will not cause farmland to be converted into dirt due to drying out when placed on top of it
• Added combination_step_sound_blocks that controls which blocks produce a combination of step sounds
• Added enchantment_power_provider to control which blocks increase the level of an Enchantment Table
• Added enchantment_power_transmitter to control which blocks are allowed between an Enchantment Table and a Bookshelf (or other Power Transmitter)
• Added vibration_resonators to control which blocks transmit vibration signals when placed next to Sculk Sensors
• Added trail_ruins_replaceable for blocks that Trail Ruins can replace when generating
• Added sniffer_diggable_block to control which blocks Sniffers can dig
• Added sniffer_egg_hatch_boost to that control on which blocks Sniffer Eggs hatch twice as fast
• Added ceiling_hanging_signs
• Added wall_hanging_signs
• Added all_hanging_signs
• Added stone_buttons block tag
• Added cherry_logs block tag
• Added bamboo_blocks block tag

Item Tags

• Added villager_plantable_seeds to represent which kind of seeds Villagers can farm
• Added noteblock_top_instruments to control which blocks can be placed on top of Note Blocks without sneaking
• Added breaks_decorated_pots to control which tools can break Decorated Pots
• Added decorated_pot_ingredients
• Added decorated_pot_sherds
• Added sniffer_food
• Added trimmable_armor
• Added trim_materials
• Added trim_templates
• Added stone_buttons item tag
• Added cherry_logs item tag
• Added bamboo_blocks item tag

Biome Tags

• Added has_structure/trail_ruins

Game Events

• Removed piston_contract game event in favor of block_deactivate
• Removed piston_extend and dispense_fail game events in favor of block_activate
• Many game events have new vibration frequencies:
  • 1: step, swim, flap
  • 2: projectile_land, hit_ground, splash
  • 3: item_interact_finish, projectile_shoot, instrument_play
  • 4: entity_roar, entity_shake, elytra_glide
  • 5: entity_dismount, equip
  • 6: entity_mount, entity_interact, shear
  • 7: entity_damage
  • 8: drink, eat
  • 9: container_close, block_close, block_deactivate, block_detach
  • 10: container_open, block_open, block_activate, block_attach, prime_fuse, note_block_play
  • 11: block_change
  • 12: block_destroy, fluid_pickup
  • 13: block_place, fluid_place
  • 14: entity_place, lightning_strike, teleport
  • 15: entity_die, explode

Fonts

New unihex Glyph Provider

• New glyph provider for reading Unifont HEX files
  • HEX format describes font glyphs using a bitmap
    • The height of every glyph is 16 pixels
    • The width of glyph can be 8, 16, 24 or 32 pixels
  • Every line is made of two hexadecimal numbers separated by :
  • The first value describes a codepoint - it must have 4, 5 or 6 hex digits
  • The second value describes the glyph as a stream of bits, line by line
• When rendering, empty columns on left and right side of glyphs are removed
  • Custom glyph widths can be set with size_overrides
• This provider requires two fields:
  • hex_file - path to ZIP archive containing one or more *.hex files (files in archive with different extensions are ignored)
  • size_overrides - list of codepoint ranges that should have width different from auto-detected (based on empty space in glyph). Fields:
    • from, to - start and end of codepoint range (inclusive)
    • left, right - integers describing the position of the left-most and right-most columns of the glyph in range
      • Any bits in columns outside of this range will be discarded

New reference Glyph Provider

• New glyph provider that can be used to include providers from other fonts
  • Providers are guaranteed to be loaded only once, no matter how many times they are included
• Provider has one field id, that describes another font to be included in the currently loaded one
  • Inclusion is performed after all fonts are loaded, so it will include all providers for a given font defined in all datapacks

Removed legacy_unicode Glyph Provider

• The legacy_unicode glyph provider has been removed
• This functionality has been replaced by the unihex provider

Quick Play

• Added support for four new command line arguments that allow the game to be launched directly into a world
• quickPlayPath takes a specified path for logging (relative to the run directory)
  • If a path is provided the following will be logged upon joining a world:
    • type: is either singleplayer, multiplayer, or realms
    • identifier: represents the world you want to join
      • For singleplayer, the folder name of the world
      • For multiplayer, the IP address of the server
      • For realms, the Realms ID
    • port: represents the server port and is only logged for multiplayer
    • name: The name of the world
    • gamemode: The gamemode of the world
    • lastPlayedTime: The time you joined the world
  • Example:
    • --quickPlayPath "quickPlay/log.json" will resolve into .minecraft/quickPlay/log.json
• quickPlaySingleplayer, quickPlayMultiplayer and quickPlayRealms all take their respective identifier
  • If one of these arguments is provided, the game will try to launch directly into the given world
  • Examples:
    • --quickPlaySingleplayer "New World"
    • --quickPlayMultiplayer "localhost:25565"
    • --quickPlayRealms "1234"

Telemetry

All Events

• Added new property: launcher_name
  • This is set based on the minecraft.launcher.brand system property
  • This will help us troubleshoot game launch related bugs more effectively, as we will be able to see whether the issue originated in the Minecraft launcher or a third-party program

Updated Required Events

• world_loaded
  • Added new property: realms_map_content
    • When loading into a Realms Map Content world (Minigame), the world_loaded event will receive the name of that map
    • This is to help us understand how Java Realms players interact with Java Realms adventure or minimap content

New Optional Events

• advancement_made
  • This event is triggered when a player completes an advancement, and allows us to see the advancement ID and the time when the advancement was completed
  • This helps us as a studio understand player progress and limits, which informs our game design
• game_load_times
  • This event is triggered when the game client is loaded
  • Includes the time it took for the client to load
  • This is so that we can work on improving and reducing the time it takes to load the game client

server.properties

• File is now read in UTF-8 initially, with previous encoding (ISO 8859-1/Latin 1) as a fallback
• File is now written with UTF-8 encoding

Symbolic Link Validation

To improve safety, the game will now detect symbolic links used inside world directory. For a detailed explanation, check our help article.

• If the target of a symbolic link is not on the user-configured allow-list, the game will not proceed with loading the world
  • Note: the world directory itself can still be linked
• The list of allowed symbolic link targets is stored in file allowed_symlinks.txt in the client or server top directory
• The file consists of entries (one per line) with following formats allowed:
  • Lines starting with # are comments and are ignored
  • [type]pattern, where type can be glob, regex or prefix
    • prefix matches start of path with given pattern (so for /test paths /test, /test/ and /test/foo.txt would match)
    • regex matches regular expression against whole path
    • glob uses OS-specific path matching mechanism (for example *.txt would usually match files with txt extension)
    • Note: paths will use OS-specific separators
  • pattern, which uses default prefix type

Fixed bugs in 1.20

Around 250 bugs were fixed in this release. View the list on the issue tracker.

1.20-rc1

We are now releasing the first, and hopefully only, release-candidate for 1.20, containing two bug fixes. If all goes well, no further changes will be made before the full release of Minecraft 1.20 on Wednesday next week.

Happy crafting!

Fixed bugs in 1.20 Release Candidate 1

• MC-256477 Knowledge books can't be placed in chiseled bookshelves
• MC-262853 Pitcher plant breaks and floats when growing without enough light

1.20-pre7

Pre-release 7 for Minecraft 1.20 is now available in the Minecraft Launcher. This pre-release adds validation of symbolic links and fixes a bug.

Changes

To improve safety, the game will now detect symbolic links used inside world directory. For a detailed explanation, check our help article.

• If the target of a symbolic link is not on the user-configured allow-list, the game will not proceed with loading the world
  • Note: world directory itself can still be linked
• The list of allowed symbolic link targets is stored in file allowed_symlinks.txt in client or server top directory
• The file consists of entries (one per line) with following formats allowed:
  • Lines starting with # are comments and are ignored
  • [type]pattern, where type can be glob, regex or prefix
    • prefix matches start of path with given pattern (so for /test paths /test, /test/ and /test/foo.txt would match)
    • regex matches regular expression against whole path
    • glob uses OS-specific path matching mechanism (for example *.txt would usually match files with txt extension)
    • Note: paths will use OS-specific separators
  • pattern, which uses default prefix type

Fixed bug in 1.20 Pre-release 7

• MC-257778 Bamboo Mosaic Slabs and Stairs are not in the #slabs and #stairs block and item tags

1.20-pre6

The sixth pre-release of the 1.20 update is here, yet again containing more bug fixes.

Happy mining!

Technical Changes

• "item": "minecraft:air" can no longer be used in datapack recipes
• Ingredients in array form are now also allowed in smithing_trim and smithing_transform recipes on fields template, base and addition
  • Those fields also allow empty arrays, which signalize that slot needs to be left empty

Loot tables

Random sequences

The ID of the random sequence is now an optional field. If no sequence name is given, loot is drawn using a non-deterministic random source.

Fixed bugs in 1.20 Pre-Release 6

• MC-237042 Killing players in the sneaking state that have their sneak option set to "Toggle" in their accessibility settings, results in other players not being able to see them in this state when they respawn
• MC-241326 Thomas Guimbretière's name is listed twice and misspelt in the credits
• MC-260411 Re-summoned dragons don't spawn end gateways when exiting the world before killing the dragon
• MC-262340 Iron Golems can spawn on transparent blocks
• MC-262575 Company names are still inconsistent in the credits

1.20-pre5

Summer is around the corner here at the office, and what better time to stay inside and try out the new pre-release?!

Happy crafting, you wonderful people!

Library version updates

• uniform font has been updated to use Unifont 15.0.03 (was 15.0.01 last pre-release)

Fixed bugs in 1.20 Pre-release 5

• MC-120158 Anvils and other falling_blocks with HurtEntities set to true kill items and xp orbs
• MC-261294 Jack o'lantern can be placed on the player or armor stand head without commands and without appearing the blur
• MC-262334 Item display entities have wrong lighting when they're rotated
• MC-262504 Recipes for colored wool, carpets, and beds in the recipe book are not grouped
• MC-262513 Blocks placed in the spot of a previously broken block will display the first frame of the breaking animation until updated
• MC-262514 Unbreakable blocks display the first breaking animation frame when attempting to mine them
• MC-262690 The player can still jump from the edge of the honey block
• MC-262730 Biomes being partially overwritten / regenerated in 1.20pre2 inside old world
• MC-262773 Markers, interaction, and display entities prevent weighted pressure plates from deactivating
• MC-262778 Losing control of a ridden mob with levitation and then re-gaining control causes levitation to persist indefinitely
• MC-262797 Book model not rendering in Enchanting Table GUI
• MC-262801 Z-fighting occurs on trimmed enchanted armor in the inventory

1.20-pre4

We've now released 1.20 Pre-release 4, resolving a crash in the Multiplayer screen introduced in the last pre-release.

1.20-pre3

We are now releasing 1.20 Pre-release 3, containing even more bug fixes.

Happy crafting!

Fixed bugs in 1.20 Pre-release 3

• MC-121788 Jump boost, slow falling and levitation don't apply to ridden horses, pigs or striders until after a relog
• MC-152258 Riding an entity with slow falling will not stop fall damage
• MC-181280 Incorrect textures can sometimes be displayed
• MC-259912 Saddled horses can infinitely retain Levitation effect
• MC-260653 Markers, interaction, and display entities can prevent pressure plates from deactivating
• MC-260903 Less recent attacker can be credited for kill
• MC-261202 Teleporting a display entity jitters the player riding on the stack
• MC-262324 Teleporting a mob while riding it doesn't work well
• MC-262505 Iron golems can produce particles for blocks they're not colliding with
• MC-262593 The word "occurred" is misspelled as "occured" within two realms strings
• MC-262684 Game icon has low resolution
• MC-262709 Dispensers do not dispense boats at the correct height
• MC-262712 Alternative recipes in recipe book do not appear on right-click
• MC-262714 The "key.keyboard.unknown" string displayed within the key binds menu is improperly capitalized

1.20-pre2

We are now releasing the second pre-release for Minecraft 1.20. This pre-release contains bug fixes.

Happy Mining!

Technical Changes

• Game will now display message box on startup if user enabled text-to-speech functionality, but it is not available
• "item": "minecraft:air" can now be used in datapack recipes to denote an ingredient that will match an empty slot.
  • The following recipe types, however, do not allow for an empty ingredient:
    • minecraft:crafting_shaped
    • minecraft:crafting_shapeless
    • minecraft:smelting
    • minecraft:blasting
    • minecraft:smoking
    • minecraft:campfire_cooking
    • minecraft:stonecutting

Fixed bugs in 1.20 Pre-release 2

• MC-1310 Dispensed boats and rafts get stuck inside of dispensers used to place them
• MC-124327 Changing the name of an item and then emptying the text field in an anvil doesn't make the rename unavailable, keeps last non-empty name on output item
• MC-132076 Lowercase Letters in controls menu + "Not Bound" is missing
• MC-159633 Command feedback messages are unnecessarily created during function execution
• MC-165562 Command suggestion report "incorrect argument" when cursor is at the start of a node without suggestions
• MC-175504 Single quotation marks are not supported in NBT paths
• MC-220096 Graphics warning button(s) improperly capitalized
• MC-224976 NativeImage.setPixelRGBA throws exception with message getPixelRGBA
• MC-226344 Changing the "Owner" tag of a projectile doesn't affect the outcome of the projectile unless the world is reloaded
• MC-237960 New potion effect GUI doesn't work when using Programmer Art
• MC-250197 Glass bottles are inconsistently referred to throughout some advancement description strings
• MC-252216 65540: Invalid scancode -1 logged in key bind menu when an option is unbound
• MC-252408 Chat restriction strings consist of inconsistent concluding punctuation
• MC-256833 Ridable entities that can be steered build up fall damage when on climbable blocks
• MC-257052 You cannot double-click on languages within the "Language" menu to select them
• MC-257370 Buckets of fish are not sorted in the same order as the fish items
• MC-257512 Dead tube coral in creative inventory is in wrong order
• MC-258360 Horse armor loses its NBT data when equipped on horses via right-clicking
• MC-258461 The "Detect structure size and position:" string displayed within the structure block GUI is improperly capitalized
• MC-260468 Wither rose is not grouped with other small flowers in the creative inventory
• MC-260602 'data modify from string' index failure does not return 0 for 'execute store success'
• MC-260711 Some words within "/datapack list" command feedback messages are always pluralized
• MC-260712 Some words within "/scoreboard" command feedback messages are always pluralized
• MC-260713 Some words within "/team" command feedback messages are always pluralized
• MC-260715 Some words within "/bossbar" command feedback messages are always pluralized
• MC-260716 Some words within "/fill", "/fillbiome", and "/clone" command feedback messages are always pluralized
• MC-261024 /execute if loaded does not guarantee entities are loaded
• MC-261080 Player can fall through scaffolding when loading a world
• MC-261233 Minecart movement is not reliably detected by sculk sensors
• MC-261349 Chiseled Bookshelf won't rotate when placed as part of a structure
• MC-261433 Shield doesn't block TNT explosion
• MC-261816 Most two block tall flowers do not block enchanting tables / are part of #minecraft:replaceable
• MC-261988 Inconsistency with Mangrove Roots and Leaves in the Creative Tab
• MC-262033 The command block GUI remains open when the said command block is destroyed
• MC-262106 Smithing recipe must have template to work
• MC-262135 Recipe book GUI is positioned incorrectly
• MC-262181 NBSP is a valid invisible character that can be used to rename items to have blank names
• MC-262213 Baby sniffer's head is smaller on the first frame of existing
• MC-262310 Telemetry description strings consist of inconsistent concluding punctuation
• MC-262311 The "telemetry.event.game_load_times.description" string is missing an article before the word "execution"
• MC-262355 Death messages for falling from climbable blocks do not work
• MC-262440 Sniffers can sniff while in love and pathfinding to their lover
• MC-262441 Baby sniffers stand a bit too far away from players that are tempting them
• MC-262445 The text cursor no longer renders above text
• MC-262446 Text within buttons renders above the semi-transparent black lines at the edges of menus
• MC-262471 Random skylight underwater where it shouldn't be, that cuts off at the chunk border
• MC-262506 Parts of beds render through the alternative recipe GUI in the recipe book
• MC-262508 Torchflower_crop causes the game to crash and locks the world when pollinated by bees
• MC-262518 The "mco.configure.world.uninvite.player" string contains an unnecessary space before the question mark
• MC-262531 "death.attack.genericKill.player" displays raw translation string (is untranslated)

1.20-pre1

It is now time for the first Pre-release for Minecraft 1.20: The Trails and Tales update!

From now on, you should mostly see bugs being fixed. In addition to that, pre-releases don't follow the regular snapshot cadence of releasing on Wednesdays, so keep an eye out for the next pre-release.

As always, a big thank you to the community for your feedback, bugs reported, and awesome ideas throughout the snapshot series. Let the pre-releases commence!

Changes

• Colored Wool, Carpets and Beds can now be dyed to any other color

Technical Changes

• Added new damage types: outside_border and generic_kill
• Random sequences for loot tables are now deterministic
• Changes in server.properties encoding
• string data sources for the data command now accept negative boundaries, which are interpreted as index counted from the end of the string

Damage Types

• Players outside the world border are now hurt by the damage type outside_border instead of in_wall
• Forcibly removing an entity using i.e. the /kill command now uses damage type generic_kill instead of out_of_world

Loot Table Random Sequences

The game now uses named random sequences to deterministically produce loot for loot tables. Each random sequence produces a unique sequence based on the world seed and sequence ID, which means a loot table will produce the same results when ran with the same parameters in the same world.

The ID of the random sequence to use for a loot table is specified in a new field called random_sequence.

server.properties

• File is now read in UTF-8 initially, with previous encoding (ISO 8859-1/Latin 1) as a fallback
• File is now written with UTF-8 encoding

Fixed bugs in 1.20 Pre-release 1

• MC-180 When reaching the other side of a nether portal the animation plays forever until stepped out of
• MC-2215 Encoding errors in server.properties
• MC-18060 Several realms strings are untranslatable
• MC-35078 Breaking animation is one frame off
• MC-123081 Placing an end crystal when entering The End prevents Ender Dragon from spawning
• MC-146582 When entering spectator mode while standing on the ground, the player moves down by 0.19051 blocks, which makes you fall down
• MC-195781 The "Include entities:" string displayed within the structure block GUI is improperly capitalized
• MC-195825 "datapacks" string is inconsistent with "data pack" string in "datapackFailure.title" text
• MC-198202 Options background texture does not match dirt texture
• MC-203039 Incorrect use of colon in options.hideMatchedNames.tooltip
• MC-206548 Leash knot subtitles are not properly capitalized
• MC-226454 The "Light as a Rabbit" advancement description has no space after the ellipsis
• MC-236606 Lightning bolt related string lacks capitalization
• MC-241736 Company names are still inconsistent and partly misspelled in the credits
• MC-250571 Gamerule description strings within the world creation menu consist of inconsistent concluding punctuation
• MC-256424 Game mode is sometimes referred to as "gamemode"
• MC-257336 Some chiseled bookshelf interaction subtitles are improperly capitalized
• MC-262006 Melon and Pumpkin are in the default '#maintains_farmland' tag despite not maintain farmland
• MC-262208 In the credits, "Lionbridge" is misspelt in one place (no "g")
• MC-262253 Music composers not listed in credits
• MC-262265 Changing resource pack that overrides a font crashes JVM
• MC-262296 Rabbits are no longer affected by jump boost
• MC-262300 Menu text is now rendered in front of the Mojang Studios loading screen fade animation
• MC-262304 The stepping_on predicate condition does not correctly succeed on trapdoors
• MC-262308 Entities do not stick to honey blocks pushed by pistons if their center isn't over the honey block
• MC-262313 Nether won't load in upgraded worlds
• MC-262317 Items don't respect properties of the block they are supported on
• MC-262351 Worldgen deadlock caused by supporting block checks
• MC-262363 Player can still gain a normal jump off of a honey block with precise timing
• MC-262424 Sprinting particles on the edges of blocks are still incorrect

23w18a

In this snapshot we're bringing you an additional advancement, updates to telemetry, as well as a fix for an 11 year old bug!

Happy stepping!

New Features

New advancements

Adventure advancements

• The Power of Books : Read the power signal of a Chiseled Bookshelf using a Comparator

Changes

• For ease of use, the Smithing Table no longer requires a Smithing Template to be in the template slot before placing an itemstack into the other slots
• Jukebox has been added to the Redstone Blocks creative tab

Step Sounds

• Walking on a block will now always play a step sound
  • It was previously not the case if you were walking along the edge of a block with air or fluid besides it
• Walking on the ocean floor will produce a step sound for the block you are walking on at a lower volume and pitch

Technical Changes

• The data pack version is now 15, accounting for sign data format, item display orientation and advancement changes
• Advancement trigger changes:
  • Added recipe_crafted
  • Changed format of placed_block, item_used_on_block and allay_drop_item_on_block triggers
• Loot table condition/predicate changes:
  • Renamed alternative to any_of
  • Added all_of
• Updates to telemetry
  • A new property has been added to every event: launcher_name
  • The world_loaded event now has a new property: realms_map_content
  • Added two new opt-in telemetry events: game_load_times and advancement_made

Advancements

Changed triggers

• All fields in placed_block, item_used_on_block and allay_drop_item_on_block have been collapsed to a single location field
• New location is similar to player field - it's a list of loot conditions/predicates
• All conditions in this list must match for a trigger to run
• Conditions are evaluated in a new loot context called advancement_location. It has access to:
  • Player as this entity
  • Position of placed block
  • Block state of placed/interacted block
  • Held/used item as "tool"
• Migration guide:
  • Contents of old location field should be migrated to location_check condition
  • Contents of item field should be migrated to match_tool condition
  • Contents of block + state fields should be migrated to block_state_property condition

Example (from make_a_sign_glow advancement):

Before:

{
    "conditions": {
        "item": {
            "items": [
                "minecraft:glow_ink_sac"
            ]
        },
        "location": {
            "block": {
                "tag": "minecraft:all_signs"
            }
        }
    },
    "trigger": "minecraft:item_used_on_block"
}

After:

{
    "conditions": {
        "location": [
            {
                "condition": "minecraft:match_tool",
                "predicate": {
                    "items": [
                        "minecraft:glow_ink_sac"
                    ]
                }
            },
            {
                "condition": "minecraft:location_check",
                "predicate": {
                    "block": {
                        "tag": "minecraft:all_signs"
                    }
                }
            }
        ]
    },
    "trigger": "minecraft:item_used_on_block"
}

Loot tables

any_of/all_of

• Loot condition alternative has been renamed to any_of
• Added new loot condition all_of that passes only when all sub-conditions pass. It has the same syntax as any_of

Telemetry

This release includes a new global property sent with every event, a new property in the required WorldLoaded event, as well as two new opt-in events. The updated required events will help us troubleshoot launcher bugs more efficiently, and understand how Java Realms content is interacted with. The updated optional events will help inform game design decisions, and allow us to track and improve game load speeds.

All events

• Added new property: launcher_name
  • This is set based on the minecraft.launcher.brand system property. This will help us troubleshoot game launch related bugs more effectively, as we will be able to see whether the issue originated in the Minecraft launcher or a third-party program.

Updated required events

• world_loaded
  • Added new property: realms_map_content
    • When loading into a Realms Map Content world (Minigame), the world_loaded event will receive the name of that map. This is to help us understand how Java Realms users interact with Java Realms adventure or minimap content.

New optional events

• advancement_made
  • This event is triggered when a player completes an advancement, and allows us to see the advancement ID and the time when the advancement was completed. This helps us as a studio understand player progress and limits, which informs our game design.
• game_load_times
  • An event that is triggered when the game client is loaded and includes the time it took for the client to load. This is so that we can work on improving and reducing the time it takes to load the game client.

Fixed bugs in Snapshot 23w18a

• MC-1133 Whether or not a player experiences some effect is calculated based on the block under the center of the player
• MC-48923 Slime/magma cubes not affected by jump boost potion effect
• MC-257269 Sculk sensor detects player walking between carpet and wool
• MC-261417 The hitboxes of sniffers are not adjusted when they lay down
• MC-261952 Clocks flicker rapidly when enchanted and in an unnatural dimension
• MC-262003 Bundle tooltip does not show its interface
• MC-262067 The type of sniffer digging particles that are produced is determined by the block that sniffers are located on instead of the block that sniffers are digging
• MC-262069 Sniffers continue digging after their target block is destroyed
• MC-262104 Rendering of FPS graph seems to be performing worse than before
• MC-262123 Advancement titles of new advancements introduced in 23w17a are improperly capitalized
• MC-262133 Strong lag spikes when moving above a cleared area with exposed void
• MC-262218 Block light updates don't cross chunk borders properly in 23w17a

23w17a

Hello! Here is a new snapshot with tweaks to the new features, new advancements, new music and some long-awaited technical changes. For some time we've been working on a new faster light engine, and we are finally ready to share the result. Special thank you to the community for not only pointing out the issues with the game's light engine, but also to community members that have developed mods and plugins which have highlighted these performance challenges and served as an inspiration for our new implementation.

Please break it in all possible ways and report bugs!

New Features

• Added new advancements for Trails & Tales
• Added new Trails & Tales ambient music
• Added a new music disc obtainable through archaeology

New advancements

Husbandry advancements

• Smells interesting : Obtain a Sniffer Egg
• Little sniffs : Feed a Snifflet (requires Smells interesting)
• Planting the past : Plant any Sniffer seed (requires Little sniffs)

Adventure advancements

• Respecting the remnants : Brush a Suspicious block to obtain a Pottery Sherd
• Careful restoration : Make a Decorated Pot out of 4 Pottery Sherds (requires Respecting the remnants)
• Crafting a new look : Craft a trimmed armor at a Smithing Table
• Smithing with style : Apply these smithing templates at least once: Spire, Snout, Rib, Ward, Silence, Vex, Tide, Wayfinder (requires Crafting a new look)

New ambient music

• Added the following new music tracks by Aaron Cherof to Cherry Groves, Desert, Jungle, Badlands, and Flower Forest biomes
  • A Familiar Room
  • Bromeliad
  • Crescent Dunes
  • Echo in the Wind

New music disc

• Added a new music disc which can be found by brushing suspicious blocks in Trail Ruins
  • When put in a Jukebox, Relic by Aaron Cherof is played

Changes

• Both types of Sculk Sensors now stay in their Cooldown phase for 10 ticks, with other phase timings being adjusted to compensate
• Crafted Decorated Pots with at least one pattern now have a hover tooltip displaying the Sherd & Brick ingredients
• Updated the credits
  • Added the ability to scroll upwards by pressing the up arrow key

Sculk Sensor Phases

• Sculk Sensors and Calibrated Sculk Sensors have three phases: Inactive, Active and Cooldown
• The default phase is Inactive
  • This phase lasts indefinitely until the block receives a vibration
  • During this phase, the block is able to listen to nearby vibrations until one has been scheduled
• When a scheduled vibration is received, the block switches to the Active phase
  • This phase lasts 30 game ticks for Sculk Sensors, and 10 game ticks for Calibrated Sculk Sensors
  • During this phase, the block stops listening to nearby vibrations, wiggles its tendrils and emits a redstone signal and light
• After the Active phase has finished, the block switches to a Cooldown phase
  • This phase lasts for 10 game ticks
  • During this phase, the block keeps wiggling its tendrils, but no longer emits a redstone signal nor light
  • Finally, once this phase is finished, the block will switch back to the Inactive phase
• Previously, some of these phases had different timing values:
  • Active: 40 game ticks for Sculk Sensors and 20 game ticks for Calibrated Sculk Sensors
  • Cooldown: 1 game tick for both types of Sculk Sensors
• These phase timings were tweaked so that it is less common for activated contraptions to recursively activate the Sculk Sensor that powered them

Technical Changes

• The resource pack version is now 15, accounting for the font and credits update
  • legacy_unicode glyph provider has been removed
  • Bitmaps used by uniform font have been removed
  • uniform font has been updated to use Unifont 15.0.01
    • That changes shape of multiple characters, while also adding support for new ones
    • Combining characters no longer include circle overlayed over them (so M◌̆ now renders as M ̆)
  • Added second level of organization of entries in credits.json on top of titles, called disciplines
• Font textures are included in debug texture dump (F3 + S)
• Added new font glyph providers: unihex and reference, removed legacy_unicode
• Improved performance of the light engine

Fonts

New unihex glyph provider

• New glyph provider for reading Unifont HEX files
  • HEX format describes bitmap font glyphs
    • height of every glyph is 16 pixels
    • width of glyph can be 8, 16, 24 or 32 pixels
  • every line is made of two hexadecimal numbers separated by :
  • first value describes codepoint - it must have 4, 5 or 6 hex digits
  • second value describes glyph as a stream of bits, line by line
• When rendering, empty columns on left and right side of glyph are removed
  • Custom glyph widths can be set with size_overrides
• Provider requires two fields:
  • hex_file - path to ZIP archive containing one or more *.hex files (files in archive with different extensions are ignored)
  • size_overrides - list of codepoint ranges that should have width different that auto-detected (based on empty space in glyph). Fields:
    • from, to - start and end of codepoint range (inclusive)
    • left, right - integers describing position of left-most and right-most columns of glyph in range
      • any bits in columns outside this range will be discarded

New reference glyph provider

• New glyph provider can be used to include providers from other fonts
  • Providers are guaranteed to be loaded only once, no matter how many times they are included
• Provider has one field id, that describes other font to be included in currently loaded one
  • Inclusion is performed after all fonts are loaded, so it will include all providers for a given font defined in all datapacks

Removed legacy_unicode glyph provider

• legacy_unicode glyph provider has been removed
• This functionality has been replaced by unihex provider

Fixed bugs in Snapshot 23w17a

• MC-108045 Minecraft not using latest unifont unicode chart; characters are missing
• MC-127394 Minecraft does not render characters in Unicode mb4 range
• MC-172980 Block light updates don't cross chunk borders properly when updated
• MC-197772 Missing textures in minecraft:uniform font
• MC-225742 When light emitting blocks generate as ores, they do not emit light
• MC-241725 In the credits, an opening parenthesis is missing for Riley Manns
• MC-241730 In the credits, a closing parenthesis is missing for Konrad Jówko
• MC-241732 In the credits, "Lionbridge" is misspelt in one place
• MC-241733 In the credits, "Insight" is misspelt in one place
• MC-241741 Certain names are listed twice in the credits
• MC-241803 credits.json: Line 2632 has typo in (C instead of O)
• MC-245819 Lighting can still occasionally lag behind world generation
• MC-249341 Some Mojang employees are not mentioned in the credits
• MC-249508 Light emitted from cave vines and glow lichens upon world generation still sometimes doesn't propagate across chunk borders
• MC-254506 Font file of some Korean completed font area is wrong
• MC-258926 Space is no longer treated as padding in fonts
• MC-261413 Particles spawned by brushes held by left-handed players move in the wrong direction
• MC-261626 Reversed Comma doesn't render properly when using the Unicode font
• MC-261900 Sniffers cannot properly pathfind into water while burning
• MC-261938 Sniffer animation is not smooth on slime blocks
• MC-261997 Game crashes when generating new chunk / java.lang.IllegalStateException: Asking for biomes before we have biomes
• MC-262012 Telemetry Tooltip out of screen
• MC-262022 Tooltips get cut off at the bottom of the screen
• MC-262024 Sniffer eggs are sometimes spawned in the ground when sniffers breed
• MC-262030 Sniffers stand a bit too close to players that are tempting them

23w16a

In this weeks Snapshot we're bringing you tweaks to the Trail Ruins, new command functionality, a new advancement trigger, and more!

Happy mining!

Edit: We have published a fix for a crash issue in this Snapshot. If you are experiencing crashes, please try closing all instances of the game and restarting the Launcher.

Changes

• All Pottery Shards has been renamed to Pottery Sherds
• If a vibration is scheduled to be received by a Sculk Sensor or Sculk Shrieker, they will stay queued until all adjacent chunks are loaded and ticking
  • Prevents vibration resonance setups from breaking when unloading their chunks from a distance
• The game's application icon has been updated
  • This will be a Grass Block in release versions, and a Dirt Block in snapshot versions
• Added native support for ARM64 machine architecture on Windows
  • To try this out, you need to manually specify a native Java Executable in the launcher

Sniffer

• Sniffers can now be tempted by Torchflower seeds

Trail Ruins

• Reworked structures based on community feedback
• Added more structure variants
• Sand no longer generates within the structures
• Tweaked the amount of gravel and dirt
• Tweaked the amount of Suspicious Gravel
• Split the loot tables for the Suspicious Gravel within the structure. There is now a dedicated loot table for Rare loot items (e.g. Pottery Sherds, Smithing Templates), and a dedicated loot table for more common loot drops (e.g. Stained Glass Pane, Tools, Candles, etc.)
• Due to these changes you might see errors like Failed to get element ResourceKey[minecraft:worldgen/processor_list / minecraft:trail_ruins_suspicious_sand] in an old snapshot world. These are harmless, but existing Trail Ruin structures that was not previously fully loaded might be missing parts of the structure.

Technical Changes

• The data pack version is now 14, accounting for item display orientation changes
• Added a return command
• Added recipe_crafted advancement trigger

Commands

return

The return command can be used to control execution flow inside functions and change their return value. Effects:

• Remaining separate top-level commands in the currently executing function (if any) are skipped
• The result value of the function command that triggered the function is changed from the number of commands executed to value
• The result value of the return command is also value

Syntax:

return <value>

Parameters:

• value: An integer return value

Advancements

New triggers

recipe_crafted

• Triggered when crafting a recipe
• Conditions:
  • recipe_id - the resource location of the recipe crafted
  • ingredients - an array of predicates for the item stacks used in the recipe
    • A single item stack can only be used to fulfill one predicate
    • Each predicate needs to be fulfilled to trigger the advancement. This allows for seperation between recipes that have same identifier but use different ingredients.
    • This field is optional. When not provided, or left empty, only the recipe_id will dictate the success of the trigger

Tags

• Added villager_plantable_seeds to represent which kind of seeds Villagers can farm
• Added maintains_farmland to represent which blocks will not cause farmland to be converted into dirt when placed on top of it

Display entity

Rendering changes

• item_display items have been rotated 180 degrees around Y axis to better match transformation applied when rendering items on armor stand head and in item frames
  • For reference, order of transformations applied to model (starting from innermost) is item_transform, rotate Y 180, transformation field, entity orientation (billboard option + Rotation field + Pos field)

Fixed bugs in 23w16a

• MC-162253 Lag spike when crossing certain chunk borders
• MC-169498 Empty top subchunks don't update skylight in some cases
• MC-170010 Sky-lightmaps not properly initialized
• MC-170012 Lightmaps are missing for initial skylight
• MC-199752 Polished Blackstone Button takes longer to break than other buttons
• MC-207251 Sculk sensors and shriekers do not work correctly when cloned, generated on superflat worlds or placed with custom structures
• MC-249450 Sculk shriekers placed with NBT don't receive signals from nearby sculk sensors
• MC-252786 SculkSensorBlockEntity and SculkShriekerBlockEntity leak VibrationListeners on update
• MC-254410 /setidletimeout set to a timer longer than 35791 disconnects idle player immediately
• MC-257178 Chiseled Bookshelf redstone behavior is inconsistent
• MC-260038 Sniffer does not have smooth animation transitions for some of its animations, like sniffing
• MC-260219 Sniffer eating sounds aren't played when feeding them the last item of torchflower seeds within a stack
• MC-260221 Sniffers can still dig when floated by levitation status effect
• MC-260237 Sniffers can sniff while panicking
• MC-260466 Torchflower doesn't maintain farmland used to grow it
• MC-260849 Sniffer can't get into minecart
• MC-261214 Amethyst in calibrated sculk sensor is shaded and not stretched
• MC-261286 Walking near liquids causes stone footstep sounds to play
• MC-261515 You can't brush blocks if a dropped item is between you and the block
• MC-261605 Splash text sometimes covers several letters of "Java Edition"
• MC-261608 Sculk sensors and calibrated sculk sensors lack a cooldown state
• MC-261620 Crash when modifying age property of a pitcher crop
• MC-261625 "Programmer Art" and "High contrast" built-in Resource Packs are incompatible
• MC-261643 Villagers can't plant torchflower seeds or pitcher plant pods, despite picking them up
• MC-261646 Subtitle for Sniffers laying eggs is "Chicken plops"
• MC-261740 Feeding a Sniffer while it is digging causes it to lay motionless for a while then dig again with no animation
• MC-261746 Incorrect sound event ID spelling for "block.sniffer.egg_crack" and "block.sniffer.egg_hatch"
• MC-261804 Expired Key preventing players from logging in on servers
• MC-261857 Using the "/setblock", "/fill", or "/clone" commands to create little amounts of blocks in completely isolated areas causes large client-side stutters

23w14a

We are now releasing Snapshot 23w14a, containing changes to Sculk blocks and Enchanting Tables, a new Quick Play functionality, an updated logo for Java Edition, a new main menu panorama, and lots of bug fixes!

Happy mining!

Changes

• Changes to Sculk blocks
• Replaceable blocks no longer block the connection between Enchanting Tables and Bookshelves
• In the Desert Temple, the new room has more of its roof collapsed and one block of Suspicious Sand is always visible in the top layer
• Updated the Minecraft: Java Edition logo
• The main menu background is now a Trails & Tales panorama

Sculk Shrieker

• Waterlogging them will now silence their shriek sounds
• Added to the Redstone Blocks tab in the creative menu

Sculk Sensor

• For both normal and calibrated Sculk Sensors, the following changes have been made:
  • Default redstone output has been modified to be more reliable for distance calculations
  • Now strongly powers the block they are placed on

Calibrated Sculk Sensor

• Has an active cooldown of 1 second instead of 2 seconds
• Detects vibrations up to 16 blocks away instead of 8 blocks
• Accepts signals into the calibration input side more consistently with other Redstone components
  • For example, signals can now be received through a block

Technical Changes

• Signs with click commands can now be interacted with even if the Sign is not waxed
  • Signs with non-text chat components can no longer be edited
• Added new loot table function called reference
• Added support for Quick Play
• Removed the server & port arguments as their functionality has been replaced by Quick Play
• Changes to tags
• The resource pack version is now 14
  • Updated the sprite layout of minecraft.png
  • Removed the overriding minecraft.png from the Programmer Art resource pack
  • Updated the sprite layout of invite_icon.png

Loot tables

reference

New function reference allows functions to call sub-functions (similar to reference condition). Fields:

• name - location of function to call

Quick Play

• Added support for four new command line arguments that allow the game to be launched directly into a world
• quickPlayPath takes a specified path for logging (relative to the run directory)
  • If a path is provided the following will be logged upon joining a world:
    • type: is either singleplayer, multiplayer, or realms
    • identifier: represents the world you want to join
      • For singleplayer, the folder name of the world
      • For multiplayer, the IP address of the server
      • For realms, the Realms ID
    • port: represents the server port and is only logged for multiplayer
    • name: The name of the world
    • gamemode: The gamemode of the world
    • lastPlayedTime: The time you joined the world
  • Example:
    • --quickPlayPath "quickPlay/log.json" will resolve into .minecraft/quickPlay/log.json
• quickPlaySingleplayer, quickPlayMultiplayer and quickPlayRealms all take their respective identifier
  • If one of these arguments is provided, the game will try to launch directly into the given world
  • Examples:
    • --quickPlaySingleplayer "New World"
    • --quickPlayMultiplayer "localhost:25565"
    • --quickPlayRealms "1234"

Tags

• Added replaceable_by_trees, to better express blocks that are replaced when the tree grows through them
• Removed replaceable_plants since it was only used as a subset of the blocks for the tag above, and not as universally
• Added sword_efficient, to represent blocks that are broken slightly faster by a sword than normal

Fixed bugs in 23w14a

• MC-2474 Transparent blocks placed between bookshelves and enchanting tables negate bonuses received from bookshelves
• MC-138358 Levers on top of item frames Z-fighting with blocks in item frames
• MC-155084 Horses' armor, reins, and bridles experience z-fighting
• MC-165773 /execute run does not cause syntax error when arguments are missing
• MC-176309 Illusioner has a few misplaced pixels left in their texture
• MC-203399 Hoppers use the side texture on the bottom
• MC-203406 Kelp and seagrass models appear to reference biome tints despite not using any
• MC-212271 Glow squid and squid show Z-fighting
• MC-224433 Clouds texture contains semi-transparent background
• MC-230792 Cat's tail shows Z-Fighting
• MC-237556 Legs of black cat model are white at the top
• MC-241314 Filled cauldrons' bottom faces are still culled when they should not be
• MC-246459 Drowned have some transparent pixels within their inner body texture
• MC-249514 Button UV appears to be upside-down
• MC-251536 Desert zombie villager feet still mismatch the sides of the feet
• MC-251537 Desert (zombie) villager has solid-color on inner of arm, unlike other villagers
• MC-251538 Desert villager missing some pixels for the sandals
• MC-252099 Incorrect texture mapping in potted mangrove propagule (mirror effect)
• MC-254588 Miscolored pixel on slowness effect icon
• MC-256419 Incomplete commands run through aliases don't produce errors
• MC-256540 The top texture of the camel's front left leg contains some redundant gray pixels
• MC-258939 Non-atomic cached state can cause multithreaded crashes
• MC-259873 Skeleton/Zombie Horse's chests are outdated
• MC-260036 Can't plant cactus and sugar cane on suspicious sand
• MC-260042 Cannot waterlog a decorated pot by using a water bucket or dispenser
• MC-260105 The name tags of sniffers are partly inside their models
• MC-260152 Sculk sensors are not activated by sniffers digging
• MC-260202 The sound of using the brush isn't affected by blocks
• MC-260237 Sniffers can sniff while panicking
• MC-260240 Sniffers that are in love sometimes don't attempt to approach one another to breed
• MC-260347 Falling suspicious sand does not break when reopening the world
• MC-260348 Sniffers will never dig in normal mud despite being a "sniffer_diggable" block
• MC-260401 When Brush is broken in offhand, the broken Particle is the Item in mainhand
• MC-260459 Baby sniffers don't sound high pitched when sniffing
• MC-260467 Torchflower is not grouped with other small flowers in the creative inventory
• MC-260478 Torchflower crop hitboxes don't change in size according to their age
• MC-260527 The coordinates of the sniffer "minecraft:sniffer_explored_positions" tag do not check the dimension
• MC-260778 Sniffer tries to sniff out blocks outside the world border
• MC-260779 Sniffers can dig into blocks outside the world border
• MC-260810 Villagers can't pick up torchflower seeds, despite being able to farm torchflowers
• MC-261167 Suspicious gravel does not have an assigned tool
• MC-261171 You can't plant bamboo on suspicious gravel
• MC-261172 Pitcher crop hitboxes don't change in size according to their age
• MC-261174 Suspicious gravel is not part of the #overworld_carver_replaceables tag, causing carvers to not cut through it
• MC-261176 Pitchers don't maintain the farmland used to grow it
• MC-261179 Attempting to interact with a waxed sign plays a sound but displays no subtitle
• MC-261183 Sniffer egg sound events are listed under "entity" instead of "block"
• MC-261186 Entities don't recognize sniffer eggs as obstacles when pathfinding
• MC-261187 Entities will often spin while pathfinding on top of sniffer eggs
• MC-261189 Inconsistent naming of block states for sniffer and turtle eggs

23w13a

In this week's snapshot 23w13a we're following up on all the new things in last week's snapshot with a big round of bug fixes. Happy mining!

Changes

• GUI can be scaled on the Video Settings screen by holding Ctrl and scrolling the mouse wheel

Fixed bugs in Snapshot 23w13a

• MC-159637 Mobs with passengers have broken movements
• MC-230916 "Potted Flowering Azalea Bush Plant" uses the wrong texture
• MC-256503 Camel can swim sitting down
• MC-256506 Camels riding entities get permanently stuck in dash mode
• MC-257246 Horses do not make step_wood sounds when walking on Nether wood, cherry wood, bamboo wood, or stems
• MC-257268 The dashing animations of camels sometimes aren't displayed for other players
• MC-259364 The "item.minecraft.smithing_template.netherite_upgrade.base_slot_description" string is missing a serial comma
• MC-260075 Player holds brush by ferrule in third person
• MC-260086 Entities riding sniffers are positioned too low down
• MC-260090 Sniffers ignore the "minecraft:generic.movement_speed" attribute
• MC-260093 Particles spawned by brushes in the left hand move in the wrong direction
• MC-260146 Pink petals are not next to other flowers in the creative inventory
• MC-260238 Sniffer digging particles are produced slightly too high up
• MC-260252 Sniffer walking animation is broken when walking on ice
• MC-260320 Parity Issue: Snifflets (Baby Sniffers) have an inconsistent model with Bedrock
• MC-260435 Sniffers don't play their walking animation when moving through cobwebs
• MC-260454 Decorated pots are translated off-center when displayed on head
• MC-260465 The torchflower crop still has an age 2 blockstate that looks like the regular torchflower
• MC-260693 potted_torchflower is still not part of the #flower_pots block tag
• MC-260834 "Alpha" can play during gameplay
• MC-260898 Brushes can be used through entities
• MC-260974 Aggressive mobs can't control "vehicle" mobs
• MC-261170 Sniffer egg faces aren't culled when covered by blocks
• MC-261181 The "Glow and Behold!" advancement is granted when interacting with waxed signs while holding glow ink sacs
• MC-261190 Signs no longer resolve JSON text components
• MC-261191 Pitcher plants aren't part of the #minecraft:flowers or #minecraft:tall_flowers block tags
• MC-261193 Calibrated sculk sensor placed by commands is waterlogged by default
• MC-261201 Pitcher plant can be replaced by the use of placed blocks, which is not consistent with other tall flowers
• MC-261204 When is farmland broken under a pitcher crop, the crop doesn't get broken
• MC-261205 Using bone meal on pitcher pod (crop) advances several growth stages at once
• MC-261206 "A Seedy Place" advancement not granted when planting Pitcher Pods
• MC-261213 Sniffer eggs can be destroyed by fluids which is different from turtle eggs
• MC-261223 Editing a hanging sign with a right click doesn't work while holding a placeable object
• MC-261224 Editing sign from an angle (or the side) will edit the back instead of the front
• MC-261229 Crashes and Chunk Resetting involving Suspicious Sand with Loot Tables updating from 1.19.4
• MC-261232 Texture minecraft:block/sniffer_egg_slightly_cracked with size 40x32 limits mip level from 4 to 3
• MC-261237 Using bone meal on upper pitcher crop doesn't advance the age of the lower half
• MC-261241 Saddle equips sound plays twice when equipping a saddle on a camel
• MC-261243 Pitcher Crop isn't part of the #crops tag
• MC-261262 Raiser and Wayfinder smithing templates are offset by one pixel
• MC-261264 The advancement "Two by Two" is no longer obtainable due to the change to sniffer's breeding
• MC-261275 Sniffers drop moss blocks when killed

23w12a

Well hello fellow Minecraft lovers! It is time for the first snapshot for 1.20. We know we promised no more major features, so how did we end up with such a big snapshot? You thought the trails were over? NO! In snapshot 23w12a we have even more tales to tell! Our devs apparently could not resist throwing in a few extra additions. Enjoy!

New Features

• All features and changes from the "Update 1.20" experimental pack are now part of the game
• Vibration resonance functionality has been added to Blocks of Amethyst
• Added the Calibrated Sculk Sensor block
• Added Suspicious Gravel, more Archaeology sites, and new Pottery Shards
• Added 5 new armor trims
• Signs have improved customization options
• Added Sniffer Egg
• Added Pitcher Plant

Vibration Resonance

• Blocks of Amethyst have a new behavior when placed adjacent to Sculk Sensors
  • If that Sculk Sensor receives a vibration, the Block of Amethyst will re-emit its frequency as a separate vibration at its location
• This behaviour is called Vibration Resonance, and allows players to move vibration frequencies across long distances without having to recreate the vibration naturally

Calibrated Sculk Sensors

• A new variant of Sculk Sensors which allows you to filter vibrations based on their frequency level
• They are not found naturally and can only be crafted with 1 Sculk Sensor and 3 Amethyst Shards in the Crafting Table
• One side of the Calibrated Sculk Sensor can receive a redstone signal as input
  • The strength of that redstone signal is the only vibration frequency the Sculk Sensor will listen to

Archaeology

• Added Suspicious Gravel block
  • It has the same characteristics as Suspicious Sand
• Added Suspicious Gravel to Cold Ocean Ruins
• Added Suspicious Sand to Warm Ocean Ruins
  • Sniffer Eggs can be found here
• Added the Trail Ruins, a buried structure from a lost culture
  • Four Armor trims can be found here
• Added 16 Pottery Shards (so there are now 20 Pottery Shards in total)
  • These have been distributed between the 5 Archaeology sites: Desert Wells, Desert Temples, Cold Ocean Ruins, Warm Ocean Ruins, and Trail Ruins

Armor Trims

New armor trim Smithing Templates have been added to the following structures:

• Trail Ruins
  • Wayfinder Armor Trim
  • Raiser Armor Trim
  • Shaper Armor Trim
  • Host Armor Trim
• Ancient City
  • Silence Armor Trim

Signs

• Sign text can now be edited after being placed in the world
  • This can be done by interacting with the Sign
• Both sides of the Sign can now have separate text and colors, allowing for further customization options
  • By default, a Sign will prompt you to input the front side's text when placed
  • To apply text to the back-side, you must walk to the other side and interact with that face to edit it
• Signs can now also be waxed with Honeycomb, preventing any further edits to its text
  • Click commands on Signs can only be invoked when the Sign is waxed
  • If a Sign with a click command is not waxed, interacting with it will not invoke the command and instead open up the edit screen as usual

Sniffer Egg

• Can be found in the Suspicious Sand of Warm Ocean Ruins
• When two Sniffers breed they do not immediately spawn a Snifflet; instead, a Sniffer Egg is dropped
• Hatching
  • When placed on Moss, the Egg will hatch after approximately 10 minutes
  • On all other blocks, it will hatch in approximately 20 minutes

Pitcher Plant

• The Sniffer can now occasionally Sniff up a Pitcher Pod item
  • This Pod, when planted in Farmland, grows into a Pitcher Crop, which has five growth stages
  • Once fully grown, the Pitcher Crop can be harvested, yielding a two-block-tall Pitcher Plant

Changes

• Vibration frequencies of many actions in the game have been tweaked
• Wither effect particle color has been adjusted to make it more distinguishable
• Potion of Slow Falling color has been adjusted to make it more distinguishable
• Step sounds can now combine for blocks walked through and stepped on

Vibration Frequencies

In preparation for the Calibrated Sculk Sensor, vibration frequencies have been greatly simplified to prevent unwanted interference. The following are category descriptions for each frequency and the expected events that they correspond to:

1. Movement in any medium (land, water and air)
2. Landing on any surface (land or water)
3. Item interactions
4. Gliding with an elytra or unique mob actions (Ravager roar, Wolf shaking, etc)
5. Dismounting a mob or equipping gear
6. Mounting a mob or interacting with a mob
7. Mobs and players getting damaged
8. Consuming items (drinking and eating)
9. Blocks 'deactivating' (door close, chest close, button unpress, etc)
10. Blocks 'activating' (door open, chest open, button press, etc)
11. Blocks changing (cauldron water level rising, adding food to campfire, etc)
12. Blocks being destroyed
13. Blocks being placed
14. Mobs and players teleporting or spawning
15. Mobs and players dying or an explosion

Combination Step Sounds

• Combines two different step sounds
• Occurs for carpets, snow, nether sprouts, as well as warped and crimson roots
  • The top-most block you are walking on is played as normal
  • The block underneath is played at a lower volume and pitch

Armor Trims

• The Dune Armor Trim now has a brand-new pattern and Smithing Template icon
• The Dune Armor Trim's old pattern is now used by the Sentry Armor Trim
  • A new icon has been made for the Sentry Armor Trim Smithing Template to fit this pattern
• The Sentry Armor Trim's old pattern is now used by the new Shaper Armor Trim

Technical Changes

• The data pack version is now 13, accounting for sign data format changes
• Added a capped rule structure processor that limits the number of replaced blocks for a structure piece to a configured maximum
• Configuring block entity fields in a rule processor rule is now delegated to a referenced block_entity_modifier instead of the previously fixed output_nbt configuration
• Game events have changed vibration frequency and some have been removed
• Tweaked display entity interpolation
• Removed update_1_20 feature flag and built-in datapack - features are no longer experimental

Structure post-processors

Capped post-processor

• A capped post-processor has been added which can limit how many blocks a delegated post-processor randomly transform in a structure
• This can be used to configure a structure piece to have an exact amount of specific blocks, instead of using random distribution
• The capped post-processor has following required parameters:
  • delegate A post-processor which performs the actual block transformation
  • limit Maximum amount of blocks that the delegated post-processor can transform
    • The blocks inside a structure are all randomly passed to the delegated post-processor until it has transformed the limited amount
    • Either constant or random number generator sampled during post-processing

Rule post-processor block entity configuration

• Previously a rule could specify an optional fixed output_nbt which would be added to the processed output block entity
• This field has now been changed to reference a block_entity_modifier
• Existing block_entity_modifier's are:
  • passthrough Retains existing fields on the block entity
    • This is the default if no block_entity_modifier is specified
  • append_static Similar to previous output_nbt this provides fixed fields to add to the block entity
    • A minor change is that this modifier appends configured fields to the processed block instead of replacing existing fields
  • clear Removes any existing fields on the block entity
  • append_loot Appends a loot table and seed to the block entity through required parameter:
    • loot_table Referenced loot table to add to block entity as LootTable field
    • Field LootTableSeed is also added to the block entity using random seeded by block position

Game Events

• piston_contract game event has been removed in favor of block_deactivate
• piston_extend and dispense_fail game events have been removed in favor of block_activate
• Many game events have new vibration frequencies:
  • 1: step, swim, flap
  • 2: projectile_land, hit_ground, splash
  • 3: item_interact_finish, projectile_shoot, instrument_play
  • 4: entity_roar, entity_shake, elytra_glide
  • 5: entity_dismount, equip
  • 6: entity_mount, entity_interact, shear
  • 7: entity_damage
  • 8: drink, eat
  • 9: container_close, block_close, block_deactivate, block_detach
  • 10: container_open, block_open, block_activate, block_attach, prime_fuse, note_block_play
  • 11: block_change
  • 12: block_destroy, fluid_pickup
  • 13: block_place, fluid_place
  • 14: entity_place, lightning_strike, teleport
  • 15: entity_die, explode

Tags

Step Sounds

• The blocks that can produce a combination of step sounds is controlled by combination_step_sound_blocks

Display entity

Interpolation changes

• Previous values are always discarded if interpolation_duration is 0
• Made sure that render properties are applied at the same time (so block_state is applied at the same time as transformation, i.e. at next tick after receiving update)
• Entities are not rendered unless initial data is received. That means display entities might not show on the first tick.
• Note: due to how game handles updates, changes to entities made after summoning might be delivered to clients with later tick

Fixed bugs in Snapshot 23w12a

• MC-157727 The small cube in honey/slime blocks isn't displayed in inventory
• MC-165221 3D Modeled Potions are not rendered correctly in the "GUI Display"
• MC-197241 Players can change the color of a wolf's collar even if they're not its owner
• MC-201647 Entity riding an entity can cause location/coordinate desync
• MC-256488 Bamboo Raft and Raft with Chest models float above ground
• MC-256551 Baby camels have a visible inventory
• MC-256585 Z-fighting occurs on the text of hanging signs
• MC-259201 The tops and bottoms of donkeys' ears are miscolored
• MC-259879 Display entities with a rather large shadow_radius value can cause performance issues
• MC-260020 Reloading the world resets the Brown Mooshroom's given flower
• MC-260043 Decorated Pots don't play breaking sound in creative mode
• MC-260047 Decorated pots from the creative inventory and new blank decorated pots with no NBT will match their texture to the last decorated pot you crafted
• MC-260053 When rotating a decorated pot with the debug stick, it will spawn a decorated pot item
• MC-260061 Sniffer's ears and head z-fight
• MC-260069 Growing cherry trees inside each other causes their leaves to decay
• MC-260240 Sniffers that are in love sometimes don't attempt to approach one another to breed
• MC-260251 The walking animations of sniffers don't change in relation to their movement speed
• MC-260282 Sniffers can sniff out and follow players in spectator mode
• MC-260296 Pink petal block models are not optimized
• MC-260317 Sniffers try to sniff out obstructed blocks they can't reach
• MC-260320 Parity Issue: Snifflets (Baby Sniffers) have an inconsistent model with Bedrock
• MC-260326 Dying sniffers continue to dig
• MC-260409 Cherry Grove biome is not in the #is_overworld biome tag
• MC-260503 Sniffers refuse to dig into soil with a non-solid block on top
• MC-260632 Riding an entity that is far away causes client/server desync
• MC-260678 Potion of Invisibility looks too similar to the Potion of Slow Falling
• MC-260750 Magma blocks use unnecessary random ticking for an outdated feature, causing performance issues
• MC-260757 Updating a large amount of Iron Bars causes the game to hang in-game or during the Saving world screen
• MC-260777 Sniffers ignore some dangerous blocks while sniffing and pathfinding resulting in them being damaged
• MC-260778 Sniffer tries to sniff out blocks outside the world border
• MC-260779 Sniffers can dig into blocks outside the world border
• MC-260839 Mobs can replace weapons held in their main hand with armor
• MC-260885 Display entities summoned with initial transformation interpolate incorrectly from default transformation during next transformation
• MC-260897 Display entity's previous state of interpolation doesn't work as expected

1.19.4

We're now releasing 1.19.4 for Minecraft: Java Edition. This release comes with improvements to horse breeding and jukeboxes, new visuals for potions, new accessibility features and many new technical capabilities like the damage and ride commands and display and interaction entities.

The update_1_20 experiment has also been updated with a first look at the Sniffer, Archaeology, Armor Trims and Cherry Grove features.

Changes

• Updated Horse Breeding
• Jukeboxes have changed to be at parity with Bedrock
• Interacting with armor or elytra items in-hand will now swap them with equipped gear
• The camera tilt when hurt is now based on the direction of incoming damage
• Potions colors have been adjusted to make different types of potions more distinguishable
• Potions no longer have an enchantment glint due to it obscuring the color of the potion contents
• Enchantment glint on items and armor is now more subtle
• Armor Stands now preserve custom names when placed and broken
• Vexes now use a separate charging animation when empty-handed
• Tweaks to recipe unlocking to make discovering vital crafting recipes easier for new players
• Updated the Create New World screen
• New accessibility options and improvements
• Updated the Realms screen to be more in line with the Singleplayer and Multiplayer screens
• Added a notification system for Realms to tell you about important information about your Realm
• Added "Credits & Attribution" button in the Options menu

Horses, Donkeys and Llamas

The speed, jump height and health of a baby is now a variation of the average of the parents' attributes, rather than being biased towards the average possible value.

This change makes horse breeding a viable way of getting great horses, if a player starts with good parents and puts in enough time and Golden Carrots.

Jukebox

• Emits a note particle above it while playing a music disc
• While playing a music disc, it will emit a redstone signal of 15
• Droppers and hoppers can now interact with it

Creative menu

• Added painting variants to the creative menu
• Paintings with a pre-defined variant will now display the author and title in the item description when hovered over

Recipe unlocking

• The Crafting Table recipe is unlocked immediately on creating a new world
• The Crossbow recipe is no longer unlocked by sticks
• The Soul Campfire recipe is no longer unlocked by sticks

Updated Create New World Screen

• The screen is now organized into three tabs
  • The Game-Tab allows to set the world name, Gamemode, Difficulty and whether to allow cheats
  • The World-Tab allows to set the World-Type and Seed, and to toggle the generation of structures and the bonus chest
  • The More-Tab provides access to the Game Rules and DataPack Selection Screen
• Tabs can be switched with the keyboard by pressing Ctrl+Tab and Ctrl+Shift+Tab
• Specific tabs can also be navigated to by pressing Ctrl+Tab Number
  • For example, Ctrl+2 navigates to the second tab
• Removed the Import Settings button and the corresponding Export Settings button in the Edit World Screen
• Added a screen to easily enable/disable experimental features
  • The screen can always be found under the More-tab
  • In snapshots, a shortcut button can be found under the Game-tab

Accessibility

• Added an accessibility onboarding screen for players launching the game for the first time
• Auto-Jump is now off by default
• Added arrow key navigation
• Added high contrast resource pack
• The resource pack screen is now keyboard-navigatable
• Changed how tooltips in the menu UI are positioned so buttons are still readable
• Added a tooltip in the key binds screen that specifies which key binds are conflicting
• Added a "Damage Tilt" accessibility option that controls the amount the camera shakes when being hurt
• Added two new options in the accessibility menu for adjusting the speed and transparency of enchantment glints
• Added a "Notification Time" accessibility option that changes how long notifications such as unlocked recipes, advancements, subtitles and selected item names are visible for

Arrow key navigation

• Menu screens can now be navigated by using the arrow keys
• When navigating with arrow keys, sliders need to be activated by pressing Enter or Space to start changing the value

High contrast resource pack

• Added a built-in resource pack that enhances the contrast of UI elements
• Added a new option in the Accessibility menu that enables the high contrast resource pack
• This only affects the menu UIs for now, but we’ll be looking to bring this to gameplay UIs in the future as well

Technical Changes

• The data pack version is now 12
• The resource pack version is now 13
• Added a group of entities to display items, blocks and text
• Added entities to detect interactions and attacks
• Added data-driven damage types
• Added a damage command for applying damage to entities
• Added ride command to mount and dismount entities
• The clone command now supports cloning to and from different dimensions
• A new string source is now available for the data modify command
• New execute sub-commands: if dimension, if loaded, on, positioned over, summon
• Added a new type of atlas configuration source: paletted_permutations
• Pressing F3+S will now dump contents of dynamic textures (like atlases, maps, etc.) to screenshots/debug/
• Added fallback fields to translate text components
• Out-of-bound arguments in translate formats are no longer silently ignored
• Added the following game events:
  • entity_dismount with a vibration frequency of 6
  • entity_mount with a vibration frequency of 7
• Changed the following game events:
  • item_interact_finish now has a vibration frequency of 2 instead of 14
• Removed heldItemTooltips option from options.txt
• Added a network protocol feature for forcing bundle of packets to be processed within same client tick
• Added --pidFile argument to dedicated server command line for printing process id to file
• The vanilla resource pack en_us language file is now sorted alphanumerically by key
• Added show_notification field to recipes
  • Accepts a boolean which determines if a notification is shown when unlocking this recipe
  • defaults to true if isn't specified
• A new recipe type smithing_transform has been added for the updated Netherite Upgrade recipe
• A new recipe type smithing_trim has been added for the new Armor Trim recipe
• A new recipe type crafting_decorated_pot has been added for the new Decorated Pot recipe
• New registries trim_pattern and trim_material have been added for the armor trim system
• Smithing table has temporarily two menu types
  • Old menu without Smithing Template slot has been renamed to legacy_smithing
    • Will be removed when Armor Trim feature stops being an experimental feature
  • New menu with Smithing Template slot was added called smithing
• Added new flag (value 128) to HideFlags NBT field for hiding armor trim item tooltips

Resource Pack format

• The enchantment glint now has two separate texture files: enchanted_glint_entity.png and enchanted_glint_item.png
• The texture format used to dynamically scale buttons and sliders has been updated to always include fixed 20px borders on the left and right
• Slider textures are now defined in a separate slider.png file
• The Create New World screen now uses a separate light_dirt_background.png for its background, unlike other screens

Commands

clone

The clone command now supports specifying the source and target dimensions.

New syntax:

clone [from <sourceDimension>] <begin> <end> [to <targetDimension>] <destination> ...

Parameters:

• sourceDimension: id of dimension to clone from
• targetDimension: id of dimension to clone to

damage

New command to apply damage to entities.

Syntax:

• damage <target> <amount> [<damageType>] [at <location>]
• damage <target> <amount> [<damageType>] [by <entity>] [from <cause>]

Parameters:

• target: The entity to damage
• amount: Amount of damage to inflict
• damageType: The type of damage to inflict
  • This determines how the damage affects the entity as well as which death message is displayed
• entity: The entity inflicting the damage
• cause: The cause of the damage, in the case of indirect damage
  • Example: When shot by an Arrow, the entity is the Arrow projectile while cause might be a Skeleton
• location: The location the damage originated at (when no entity caused the damage)
  • For instance, location might represent the location of a Bed exploding in the Nether

data

New source available:

• string <entity|block|storage> [path] [start] [end] - reads a value as text, resulting in a string value

New arguments:

• start: Index of first character to include at the start of the string
• end: Index of the first character to exclude at the end of the string

effect

• infinite is now a valid option for effect durations
  • Infinite effect durations show up as "∞" in the player inventory view

execute

execute if|unless

New conditions available for the execute if|unless sub-command:

• execute if|unless loaded <pos> - checks if the position given is fully loaded (in regard to both blocks and entities)
• execute if|unless dimension <dimension> - checks if the execution is in a matching dimension

Parameters:

• pos: Block position to check
• dimension: A dimension id

execute on

New execute sub-command for selecting entities based on relation to the current executing entity:

• execute on <relation>

Relations:

• vehicle - the entity that the executing entity is riding
• passengers - all entities directly riding the executing entity (no sub-passengers)
• controller - the entity that is controlling the executing entity (for example: first passenger in a boat)
• owner - the owner of the executing entity, if it is a tameable animal (like cats, wolves or parrots)
• leasher - the entity leading the executing entity with a leash (might be a leash knot in case of being attached to a fence)
• target - the attack target for the executing entity
• attacker - the last entity that damaged the executing entity in the previous 5 seconds
• origin:
  • shooter, if the executing entity is a projectile (like Arrow, Fireball, Trident, Firework, Thrown Potion, etc.)
  • thrower, if the executing entity is an item
  • source of effect, if the executing entity is an Area Effect Cloud
  • igniter, if the executing entity is a Primed TNT
  • summoner, if the executing entity is Evoker Fangs or a Vex

If the relation is not applicable to the executing entity or there are no entities matching it, the selector returns zero elements.

execute positioned over

New execute sub-command for finding positions on top of a heightmap. Changes the height of the execution position to be on top of the given heightmap.

Syntax:

• execute positioned over <heightmap>

Heightmaps

A heightmap records the highest position in a column of blocks according to some criteria. Available options:

• world_surface: Any non-air block
• motion_blocking: Any motion blocking material (e.g. ignores flowers and grass)
• motion_blocking_no_leaves: Any non-leaf motion blocking material
• ocean_floor: Any non-fluid motion blocking material

execute summon

New execute sub-command for summoning a new entity and binding the context (@s) to it. Meant to simplify entity setup and reduce the need for raw NBT editing.

Syntax:

• execute summon <entity id>

fillbiome

• The amount of network data transmitted when using the fillbiome command has been optimized

title

• All time arguments to title times are now time durations and work with t, s and d suffixes

weather

• The duration of the weather change now matches the game's regular weather cycle if not specified
• The duration parameter is now a time duration in ticks and works with t, s and d suffixes
  • To retain existing functionality, you need to add an s suffix to pre-existing commands

ride

New command to allow entities to start or stop riding other entities.

Syntax:

• ride <target> mount <vehicle>
  • Makes a single target mount a single vehicle
  • The command will fail if:
    • vehicle is a player
    • target is already riding a vehicle
    • target and vehicle are the same entity
    • vehicle is already a passenger (direct or indirect) of target
• ride <target> dismount
  • Dismounts target from any vehicle it is riding
  • Fails if target is not riding anything

Damage Types

Damage Types are a new registry that can be extended through data packs. A Damage Type determines how damage is handled by the game. This includes which attributes the damage has as well as which death message is used when an entity dies due to that type of damage.

Example:

{
  "exhaustion": 0.1,
  "message_id": "arrow",
  "scaling": "when_caused_by_living_non_player"
}

Fields:

• message_id: The message id used for deaths caused by this damage type
  • Will be combined with other string fragments to form a translation key
• exhaustion: The amount of hunger exhaustion caused by this damage type
• scaling: Whether this damage type scales with difficulty levels. Possible values:
  • never: Damage is always the same
  • always: Damage always scales with difficulty
  • when_caused_by_living_non_player: Damage scales with difficulty if it was caused by a living entity who is not a player
• effects: Optional field controlling how damage manifests when inflicted on players. Possible values:
  • hurt (default): the default hurt sound
  • thorns: Thorns hurt sound
  • drowning: Drowning sound
  • burning: A single tick of burning sound
  • poking: Berry bush poke sound
  • freezing: Freeze tick sound
• death_message_type: Optional field that controls if special death message variants are used. Possible values:
  • default (default): No special death message logic is applied
  • fall_variants: Show a variant of fall damage death instead of a regular death message, e.g. death.fell.assist.item
  • intentional_game_design: Show the intentional game design message instead of a regular death message

Damage type tags control many aspects of how damage from different sources are interpreted.

Predicates

Damage Type Predicates

The following fields have been removed from damage type predicates: is_projectile, is_explosion, bypasses_armor, bypasses_invulnerability, bypasses_magic, is_fire, is_magic, is_lightning.

A new tags array has been added, with the predicate matching if all entries match. Each entry has two fields:

• id: The ID of a damage type tag
• expected: Whether the damage is expected to have or not have the tag for the predicate to match

Game Rules

• Added commandModificationBlockLimit, controlling the maximum number of blocks changed in one execution of clone, fill and fillbiome
• Added doVinesSpread game rule, determining if vines will spread to nearby blocks
  • Defaults to true

Text components

Added an optional fallback field to translate text components.

• The new field is a string that will be used in place of translation if it is missing
• If fallback is missing, the old behavior (i.e. using the key itself as the translation) is preserved

Display entities

Three new entities have been added for flexible display of items, blocks and text

• Those entities, similarily to marker, don't tick and have no collisions or physics
• Models render at entity position, with normal rotation around X and Y axis (so it can be controlled by teleport commands), but also with additional arbitrary model transform

Common data types

Tag contents for display entities include some new data types with a complex structure. Any form can be used for modifying data, but only one form is used for saving.

Transformations

Arbitrary affine transform.

• Matrix form: array of 16 numbers, describing row-major matrix
• Decomposed form (used for saving): object with following fields:
  • translation - 3d vector
  • left_rotation, right_rotation - rotation
  • scale - 3d vector
  • Transforms are composed in order translation, left_rotation, scale, right_rotation

Rotations

• Quaternion form (used for saving): array of 4 numbers, describing components (x, y, z, w)
• Axis-angle form: object with following fields:
  • axis - unit 3d vector
  • angle - in radians

Interpolation

Some properties of display entities can be interpolated. That means that clients will see gradual changes over time instead of instantaneous jumps.

Display entities keep track of current and previous values of interpolated values:

• All properties marked as "interpolated" are part of a single interpolation set
• Any update to interpolated property will cause all values of interpolation set to be saved as "current"
  • Data command executions that do not change value of property (even if it's present in NBT) do not count as updates
  • Updates are synchronized to clients at most once per tick, so multiple updates within command will still count as a single update
• The last values generated before an update are saved as "previous"
• If interpolation is enabled, the entity will transition between "previous" and "current" values over interpolation_duration ticks
• Interpolation can be started by writing to the start_interpolation field (this field is not normally present in NBT)
  • The value in this field is a delay in ticks between client receiving the update and interpolation start
  • A value of 0 ticks means that interpolation will start in next client tick after receiving the update
  • Positive values increase this delay further
• Interpolation will end (entity fully in "current" state) in start_interpolation + interpolation_duration ticks after receiving the update
• The interpolation target can be updated without setting start_interpolation, but it will still behave as if it was started at the moment of the last update to start_interpolation
  • That means that if the value is updated, but more than interpolation_duration ticks have passed since last start_interpolation update, the entity will immediately jump to new values

Common properties

All display entity types have the following fields:

• transformation - the transformation applied to model (after normal entity orientation). Defaults to identity. Interpolated
• billboard - option to control if entity should pivot to face player when rendered:
  • fixed - no rotation (default)
  • vertical - entity can pivot around its vertical axis
  • horizontal - entity can pivot around its horizontal axis
  • center - entity can pivot around its center point
• brightness - if present, overrides light values used for rendering. Omitted by default (which means rendering uses values from entity position). Object has two fields:
  • sky - value of skylight, 0..15
  • block - value of block light, 0..15
• view_range - maximum view range of this entity. Actual distance depends on client-side render distance and entity distance scalling. Default value 1.0 (roughly the same as fireball)
• shadow_radius - size of shadow. Defaults to 0 (no shadow). Interpolated
• shadow_strength - strength of the shadow. Controls the opacity of the shadow as a function of distance to block below. Defaults to 1. Interpolated
• width, height - describe size of culling bounding box
  • Bounding box spans vertically y to y+height and horizontally width/2 in all directions from entity position
  • If either field is set to 0, culling is disabled
  • Both default to 0
• glow_color_override - override glow border color. Defaults to -1 (use team color). Alpha component is ignored

item_display

Displays a single item stack.

• Stack can be changed with commands by setting slot container.0

Fields:

• item - item stack to display. Same format as in inventory (example: {id: "minecraft:dirt", Count: 1})
• item_display - describes item model transform applied to item (as defined in display section in model JSON)
  • Values: none (default), thirdperson_lefthand, thirdperson_righthand, firstperson_lefthand, firstperson_righthand, head, gui, ground, fixed

block_display

Displays a block state.

• Does not display all block entities, even if they would normally be created on block placement (like chests)

Fields:

• block_state - block state to display. Same format as item held by endermen (example {Name:"minecraft:dirt"})

text_display

Displays a text component.

Fields:

• text - text to display. Components are resolved with the context of the display entity
• line_width - line width used to split lines (note: new lines can be also added with \n characters). Defaults to 200
• text_opacity - opacity (alpha component) of rendered text. Defaults to 255. Interpolated
• background - color of background. Includes alpha channel. Defaults to 0x40000000. Interpolated
• default_background - if true, rendering uses default text background color (same as in chat). Defaults to false
• shadow - whether the text should be displayed with a shadow. Defaults to false
• see_through - whether the text should be visible through blocks. Defaults to false
• alignment - how the text should be aligned
  • Values: center (default), left, right

Note: text display backgrounds uses new shader types rendertype_text_background and rendertype_text_background_see_through.

Interaction Entities

A new type of entity that records attacks ("left clicks") and interactions ("right clicks"). Interactions are invisible and of a custom size.

Fields:

• width: Width of the entity's bounding box (default 1)
• height: Height of the entity's bounding box (default 1)
• attack: Records the last attack action on the entity
• interaction: Records the last interaction action on the entity
• response: Boolean specifying if interacting should trigger a response (arm swing, sound effects, etc - default false)

Action Format

When an action is stored, it always has two fields:

• player: The UUID (in standard integer array format) of the player performing the action
• timestamp: The timestamp of the game tick when the event happened (stored as a long)

Advancement Triggers

• Interacting with an Interaction entity triggers player_interacted_with_entity
• Attacking an Interaction entity triggers player_hurt_entity

execute on with Interactions

The Interaction entity targets the player who last interacted with it. That makes the following possible:

• execute on attacker: execute as the last player who attacked the entity
• execute on target: execute as the last player who interacted with the entity

Tags

Block Behavior

• Fire burns out faster in certain biomes, and this is now controlled by the increased_fire_burnout biome tag

Mob Spawning

• The only_allows_snow_and_gold_rabbits biome tag has been renamed to spawns_gold_rabbits to match its behavior
• White Rabbit variants are now controlled by the spawns_white_rabbits biome tag
• Fox variants are now controlled by the spawns_snow_foxes biome tag

Mob Behavior

• Snow Golems melting in warm biomes is now controlled by the snow_golem_melts biome tag
• Only mobs in the dismounts_underwater entity tag will now force the rider to dismount when underwater

Network Protocol

• Clients now reset their Secure Chat session state when receiving the login packet

Packet bundles

• Added new delimiter packet to clientbound game protocol
• All packets between two delimiters are guaranteed to be processed within same tick
• For security reasons this feature is not supported in the serverbound direction

Paletted Permutations

• paletted_permutations is a new type of atlas configuration source used to dynamically generate new textures in memory based on a set of color palettes
• Color palettes allow you to swap out the colors of a texture without having to supply all files for the variants of a texture in a resource pack
• This is useful for things like armor trims, where you want to be able to change the color of parts of the armor without having to create a new texture for each color
• The paletted_permutations source has a set of required parameters:
  • textures A list of namespaced locations of base textures
    • These textures will be used to generate variants of them that have been modified by color palettes
  • palette_key A namespaced location of a color palette key file
    • A color palette key is used to define the set of key pixel colors we want to swap out with the color palettes defined below
  • permutations A map of permutations from suffix to a namespaced location of a color palette file
    • The suffix is appended at the beginning to the resource location of the output variant textures, with a _ character separating the suffix and the base texture name
    • The color palette is a texture file with a set of pixels that are used for replacing pixels that match the color palette key in each base texture
    • The number of pixels in each color palette must be the same as that of the palette_key defined for this source
    • Key matching is done by comparing the RGB values of each pixel in the palette_key to the RGB values of each pixel in the color palette
    • The alpha channel is ignored for key matching, but in the resulting texture the alpha channel is multiplied with the color palette's alpha channel
    • Pixels that do not match the palette_key are copied over to the resulting texture as-is
• After defining a paletted_permutations source, you can then reference those namespaced output textures in other resources in your resource pack

For example, if you have the following paletted_permutations source:

{
    "type": "paletted_permutations",
    "textures": [
        "minecraft:item/leather_helmet",
        "minecraft:item/leather_chestplate",
        "minecraft:item/leather_leggings",
        "minecraft:item/leather_boots"
    ],
    "palette_key": "minecraft:colormap/color_palettes/leather_armor_color_key",
    "permutations": {
        "red": "minecraft:colormap/color_palettes/red",
        "green": "minecraft:colormap/color_palettes/green",
        "blue": "minecraft:colormap/color_palettes/blue"
    }
}

You can then reference the resulting textures in other resources like this:

{
    "textures": {
        "layer0": "minecraft:item/leather_helmet_red",
        "layer1": "minecraft:item/leather_chestplate_green",
        "layer2": "minecraft:item/leather_boots_blue"
    }
}

Trim Patterns & Materials

• Trim patterns and materials for armor are defined by the server through the trim_pattern and trim_material registry respectively
  • As a result, new trim patterns and materials can be added via data packs
• These are synchronized to clients when they join the server
  • However, clients must have an accompanying resource pack to see those registered trim patterns and materials
  • The paths to these textures are inferred based on the filename of the pattern json, and will try to find the textures within the same namespace as the trim pattern's name field
• The following data is defined by a trim pattern:
  • asset_id which is a namespaced id used to infer texture locations and localization
  • template_item which is the id of the smithing template item used to apply the trim pattern
  • description which is a text component used for displaying the pattern name of an armor trim when hovering an armor itemstack
• The following data is defined by a trim material:
  • asset_name which is a string used as a suffix for armor trim texture locations
  • ingredient which is the id of the ingredient item used to apply the trim material
  • item_model_index which is a float which defines the item model override each armor item model should target to change their visuals for this material
  • override_armor_materials which is an optional map of armor material to overridden color palette
    • Map key is the armor material that this trim material wants to override with a different color palette
    • Map value is the name of the color palette that will be used when this trim material is applied to an armor piece with the corresponding armor material
  • description which is a text component used for displaying the material name of an armor trim when hovering an armor item stack
    • The style defined in this description is applied to the armor trim pattern description as well

Experimental Features

The following changes only apply when one or more Experiments is turned on, either by activating the corresponding experimental data pack or by turning it on in the Experiments screen while creating the world.

• Added Smithing Template items
• Redesigned the Smithing Table
• Changed how Netherite equipment is crafted
• Added a new armor trimming system to visually customize your armor
• Added Sniffer mob and Torchflowers
• Added the Cherry Grove biome
• Added Archaeology
• Mob Heads can now be placed on top of Note Blocks without sneaking

Smithing Templates

• Smithing Tables have been redesigned into a workstation for physical equipment upgrades and modifications
• Alongside slots for combining a piece of equipment and materials, there is now a required slot for an item type called Smithing Templates
• Smithing Templates define what type of upgrade you will be making to equipment
  • It specifies both what type of items you can upgrade, and which ingredients are valid to customize the upgrade
  • There are currently two categories of Smithing Templates: Armor Trim and Netherite Upgrade
• Smithing Templates are consumed when used to upgrade an item in the Smithing Table
• You can craft a copy of a Smithing Template in the Crafting Table with 7 diamonds + 1 block of material that the template is made out of + 1 smithing template, which will output 2 of the same Smithing Template

Netherite Equipment

• Netherite equipment crafting now also requires a Netherite Upgrade Smithing Template
• Netherite Upgrade Smithing Templates can be found randomly in all Bastion Remnant chests, and there is a guarantee of 2 in every Treasure Room Bastion Remnant
• This change was made for a variety of reasons:
  • Increase the time players utilize Diamond equipment before Netherite
  • Make Netherite equipment a more significant achievement in the game's progression
  • Adapt Netherite more naturally into the new Smithing Table crafting system

Armor Trims

• You can now visually customize your armor with a variety of unique trims at the Smithing Table
• Armor trims are purely visual with no gameplay benefits, and can only be applied to Helmets, Chestplates, Leggings and Boots
  • All trim patterns are visually the same on an armor's item icon, but the color will still change based on the trim material
  • To check which trim pattern a piece of armor has, you can hover over it in the inventory
• Armor Trim Smithing Templates can be found all throughout the world, and each of the following structures contain their own unique Smithing Template:
  • Pillager Outpost: Sentry Armor Trim
  • Desert Pyramid: Dune Armor Trim
  • Shipwreck: Coast Armor Trim
  • Jungle Temple: Wild Armor Trim
  • Ocean Monument: Tide Armor Trim
  • Ancient City: Ward Armor Trim
  • Woodland Mansion: Vex Armor Trim
  • Nether Fortress: Rib Armor Trim
  • Bastion Remnant: Snout Armor Trim
  • Stronghold: Eye Armor Trim
  • End City: Spire Armor Trim
• Smithing Templates are found in chests in their respective structure
  • The Ocean Monument has no chests, Elder Guardians sometimes instead drop a Smithing Template upon death
• Some Armor Trim Smithing Templates are rarer than others, so be on the lookout for them to impress your friends!
• An armor trim has two properties: a pattern and a material
  • The pattern is defined by the Smithing Template used to apply the trim, and represents the visual pattern of the trim
  • The material is defined by what ingredient you used to apply the trim, and represents the color of the trim
• The viable ingredients you can use to define the color of your armor trim are the following:
  • Iron, Copper, Gold, Lapis, Emerald, Diamond, Netherite, Redstone, Amethyst, Quartz

Sniffer

• The Sniffer is the mob vote winner of Minecraft Live 2022
• Sniffers cannot be tempted or tamed
• Sniffers are passive, friendly mobs
• Sniffers sniff the air and occasionally dig for seeds, which produces a Torchflower Seed
• Sniffers can be bred by feeding them Torchflower Seeds
• The Sniffer is currently only available as a Spawn Egg in the creative inventory

Torchflowers

• The Torchflower seed can be planted on farmland and grows into a flower
• The seed can be used to breed two Sniffers
• The full-grown flower can be harvested and replanted but can also be crafted into a dye

Cherry Groves

• Added a new Cherry Grove biome, with pretty cherry blossom trees
  • The biome can be found in the mountains, in similar places as Meadows
• Added a new Cherry wood set, with all the corresponding wooden things you can make from it
• Cherry Leaves have pink particles falling underneath
• Added a new Pink Petals block with lots of pink flowers on the ground
  • Each pink petal block can contain up to 4 petals
  • Using bone meal on it increases the number of petals
  • Placing a petal on a block increases the number of petals
  • Mining the block gives you the number of petals in the block

Archaeology

The Brush

• The brush is a craftable item you can use to brush things

Suspicious Sand

• Can be found in Desert Temples and Desert Wells
• This fragile block is hard to spot and easy to destroy, so be careful!
• Brushing the Suspicious Sand with a Brush will extract objects that were buried long ago

Pottery Shards

• Pottery Shards have pictures on them
• They cannot be crafted and are only found by brushing Suspicious Sand

Decorated Pots

• Crafting four Pottery Shards together will create a Decorated Pot with a picture on each side
• Brick items can be used instead of Pottery Shards in the Decorated Pot recipe
  • The sides that were made from Brick items will not have pictures
• Smash a Decorated Pot with any block-breaking tool to break it apart and get the Pottery Shards back
  • Hitting the pot with bare hands, silk touch tools, or any other item, will drop an intact pot instead

Fixed bugs in 1.19.4

Around 150 bugs were fixed in this release. View the list on the issue tracker.

1.19.4-rc3

A third Release Candidate is now available for Minecraft 1.19.4, fixing one issue in preparation for the full release of Minecraft 1.19.4 tomorrow.

Happy Crafting!

Fixed bug in 1.19.4 Release Candidate 3

• MC-260901 Guardians deal thorns damage even while their spikes are retracted

1.19.4-rc2

We are releasing a second Release Candidate for 1.19.4 to fix a few critical issues.

Fixed bugs in 1.19.4 Release Candidate 2

• MC-260677 Advancement icons handle translucent textures wrong
• MC-260878 Guardians apply Thorns damage when hit by projectiles
• MC-260881 Transparent 3D models dont render properly in the GUI/Hotbar

1.19.4-rc1

Here is the first (and hopefully last) release candidate for 1.19.4. Unless something critical pops up, no further changes will be made for the full release, which is planned for next week.

Happy mining!

Technical Changes

Changes to display entity interpolation:

• interpolation always starts at the beginning on client tick
• field interpolation_start is replaced with start_interpolation, with a different meaning
• start_interpolation describes amount of ticks from the start of next client tick after receiving an update to start of interpolation
  • for example value 0 means that interpolation will start at the beginning of next client tick after receiving the update
• start_interpolation is not stored in entity data
  • when using data commands, if interpolated value is updated, but start_interpolation is not present in modified tag, interpolation will continue from the time of previous update, but with new values