Java Edition 1.17: Caves & Cliffs Phase One

Additions

Blocks

Amethyst Bud

Grows from budding amethyst, which is found in amethyst geodes.
Starts out small, but grows into medium after a while, large after even more time and eventually becomes an amethyst cluster.
Unlike crops, each growth stage is a separate block instead of a block state.
Drops only when mined with a Silk Touch pickaxe.

Amethyst Cluster

The final, mature stage of the amethyst bud, which grows from budding amethyst in amethyst geodes.
Drops amethyst shards if broken, in an amount affected by Fortune, but can also be picked up with Silk Touch.
Emits a light level of 5.

Azalea

Has variants with either no blossoms or pink blossoms.
Bush-like blocks which can be planted on dirt and grass blocks.
Both azaleas can grow from moss blocks when bone meal is used on them.

Azalea Leaves

Has variants with either no blossoms or pink blossoms.
Yield azalea and sticks on decay.

Barrow

A bone-like block that is created by powering a Sculk Tower.
If a Barrow block is Bonemealed, it will grow another barrow block on each of its sides (except the top and bottom), unless there is already a block there.
Can be crafted into Chopped and Grazed variants.
Can only be obtained with Shears, if the player doesn't use Shears, it will drop two to three Dark Marrow.

Block of Amethyst

A block found in amethyst geodes.
Unlike the Budding Amethyst, the Block of Amethyst can be obtained when mined.
Can also be crafted with 4 amethyst shards.

Block of Copper

Can be crafted with 4 copper ingots, and can also be crafted back into 4 copper ingots.
Oxidizes and changes texture to a turquoise-green over time.
Can be stopped from oxidizing by combining it with a honeycomb to create a Waxed Block of Copper.
Can be crafted into cut copper.

Budding Amethyst

Generates amethyst buds/clusters on any side that is exposed either to air or a water source block.
Cannot be obtained when mined, even with Silk Touch, and does not drop anything.
Breaks immediately if pushed by a piston or sticky piston.
- Cannot be pulled by sticky pistons.
Generates in amethyst geodes.

Calcite

An off-white stone that generates in geodes, between Smooth Basalt and amethyst.

Candle

Crafted with honeycomb and string.
Comes with 16 dyed types and a yellowish non-dyed type.
Can be lit by any item that produces fire.
Up to 4 can be placed in a single block, similar to sea pickles, for a maximum light level of 12.
- Only candles of the same colour can be placed on the same block.
Only one can be placed on an uneaten cake and lit.
- If any of the cake is consumed, the candle pops off.
Can be placed underwater, but cannot be lit.

Cave Vines

A natural light source, with a light level of 10 or 14 (depending on whether it's head or body).
Drop glow berries.
- Growth can be sped up using bone meal.
- Berries can be harvested by interacting with the vine.
Grow from glow berries when placed on the underside of a block.
Unlike regular vines, they cannot be climbed.

Cheese Block

A new decorative block.
Can be turned into Slab and Stair variants.

Chopped Barrow

A variant of Barrow crafted with one Barrow surrounded by four Sculk Marrow.
Has a unique model, because there are "flakes" on the side of it.

Churn

Used for making Cheese.
If right-clicked with a Milk Bucket, it will have milk inside, similar to Composters.
Putting 4 to 6 Milk Buckets in creates 1 Cheese Block.

Clay Pot

Uses the texture of clay.
Ceramic Shards can be incorporated into an unfired pot.
Can be fired by lighting fire under the pot.
Pot can fit up to 8 Ceramic Shards.

Cobbled Deepslate

Drops from deepslate when mined with a pickaxe without Silk Touch.
Functions identical to cobblestone and blackstone in that it can be used to craft basic tools, furnaces, and brewing stands.
Is used to craft all the deepslate variant blocks instead of regular deepslate.
Has wall, stair, and slab variants as well.

Copper Ore

Generates randomly underground in small veins, but this has been confirmed to be a placeholder.
Has the same rarity as iron.
Generating starts at the same minimum level(s) as iron.
Can be smelted into a copper ingot.

Cut Copper

Can be made into stair and slab variants.
Oxidizes and changes texture over time.
Can be stopped from oxidizing by combining it with a honeycomb to create Waxed Cut Copper.

Cut Copper Slab

Oxidizes and changes texture over time.
Can be stopped from oxidizing by combining it with a honeycomb to create a Waxed Cut Copper Slab.

Cut Copper Stairs

Oxidizes and changes texture over time.
Can be stopped from oxidizing by combining it with a honeycomb to create Waxed Cut Copper Stairs.

Deepslate Ore

Added deepslate variants of all ores, including iron, gold, copper, coal, diamond, redstone, emerald, and lapis lazuli.
- Deepslate ore variants for copper, emerald and coal ore do not generate by default; they have been added for use only by creators of maps and data packs.
Takes twice as long to mine as normal ores.
Has the texture of deepslate replacing the normal stone texture.
Takes place of ores that generate in deepslate.
Can be used in blasting and smelting recipes like normal ores.
- These recipes can be unlocked in the recipe book with deepslate ores as well.

Dripleaf

Allows an entity to stay on it for 1.5 seconds (30 ticks), before the entity will fall through it.
- The tilt happens in 3 stages: Unstable, Partial, and Full. These can be seen in the F3 debug menu.
  - All the stages are solid except the Full stage, which is when the player falls through.
  - When nobody is standing on it, it is set to None stage.
- The tilt can also be triggered by hitting the plant with a projectile.
- The tilt can be prevented by powering it with redstone, but hitting it with a projectile still tilts.
Comes in two sizes: Small and Big. Small can be applied bone meal to grow into Big.
- Small dripleaf can only be obtained with shears (otherwise breaks), and can only be planted on clay, or underwater on clay and dirt blocks.
- Big dripleaf can be obtained with any tool or by hand, and can be planted on grass and dirt blocks.

Dripstone Block

A decoration block.
Appears to be made of the same materials as stalactites and stalagmites but as a full cube.
Only generates in the Dripstone caves biome which is currently only available through single biome, caves, or floating islands world types.
Can be crafted from 4 pointed dripstone.

Glow Item Frame

Placeable entities which appear to glow.
Do not affect the light level, only appearing as if lit up themselves.
Items placed inside also glow.
Crafted using an item frame and a glow ink sac.
Includes application to maps.

Glow Lichen

A naturally occurring light source found rarely in caves, growing on any face of a block.
Has a light level of 7.
Obtained with shears, otherwise breaks.
Does not spread naturally, although bone meal can be used to spread it horizontally (or vertically if on the side of a block).
- It spreads to adjacent spaces, up to 4.
Can be waterlogged.
Unlike vines, it does not pop off when underwater, and is not climbable.
Up to 6 can be put on the same block space, merging into one block.

Grazed Barrow

A variant of Barrow that looks cracked.
It is crafted with one Barrow and one Axe.
- The Axe won't disappear, but will lose durability.

Deepslate

A dark grey stone found between Y = -1 to Y = -64 of the world
- Makes a gradual transition from stone to Deepslate as the Y-level reaches 0.
- Takes over fully underground starting from Y=-8.
- Has a hardness value greater than that of stone but can be mined with any pickaxe.
- Drops Cobbled Deepslate when mined.
- Can be obtained only with a Silk Touch pickaxe.
- There are 16 variants in total.

Hanging Roots

Decorative blocks that can only be placed on the underside of a block.
Obtained with shears, otherwise breaks.

Lichen Block

A new block that has five types, Sunburst (orange), Rubrocincta (red), Marine (blue), purpura (Purple), and Dark Lichen (black).
They generate in Mycosphere biomes.

Lichen Cover

A new block that has five types, Sunburst (orange), Rubrocincta (red), Marine (blue), purpura (Purple), and Dark (black).
It is like Lichen Blocks but only one pixel thick.
They generate in Mycosphere biomes.

Lightning Rod

Can be crafted with 3 copper ingots.
Lightning strikes within a 32-block radius get redirected to the lightning rod.
Gives off a redstone signal with a strength of 15 if hit by lightning.
Can be activated directly by throwing a trident with Channeling at it during a thunderstorm, though this does not produce a redstone signal.

Moss Block

An opaque block with a grass-like texture on all sides.
Can be bonemealed to grow grass, tall grass, moss carpets and both types of azaleas on it and in its vicinity.
Can be bonemealed to grow over (expand) across stone surfaces, but not grass surfaces.
Breaks when pushed by a piston.

Moss Carpet

Same texture as the moss block, but one pixel thick.
Crafted with moss blocks.

Painted Clay Pot

Uses the texture of terracotta.
Created by firing a clay pot.
Upon firing, any placed Ceramic Shards become permanently incorporated on to the clay pot.

Pebbles

Found in Lush Caves, usually in Water.

Pointed Dripstone

Can be either placed on a ceiling to create a stalactite, or on top of a block to create a stalagmite.
- Can be combined to form longer stalactites and stalagmites.
Thrown tridents break pointed dripstone. Will also break when pushed directly or with a block by a piston.
Stalagmites break if not attached to something below
Stalagmites hurt entities which fall on top of them more than normal fall damage.
- Damage is relative to height: For example, jumping on a stalagmite deals 2 of damage, and falling from 3 blocks deals 8 of damage.
Stalactites can fall or break if unsupported, and break apart on impact, hurting entities they fall on.
- Damage is relative to height: For example, one falling from 2 blocks deals 2 damage, and one falling from 3 blocks deal 4 damage.
- They drip water or lava into cauldrons if a source block is placed above the stalactite, and gradually fill the cauldron. Water drips even without any water above the block (lava in the Nether), but does not fill the cauldron.

Powder Snow

A variant of snow, Entities that walk over it will sink into it.
Leather boots can be worn to prevent entities from sinking into powder snow blocks.
- Players can still crouch to descend with leather boots. Wearing leather boots also allows powder snow to be "climbed", like water or scaffolding.
When inside a powder snow block, a frosty vignette appears around the player's screen and any entity inside starts freezing and taking damage after a short time.
- Wearing any piece of leather armor will stop the freeze effect.
Can be collected and placed with a bucket.

Rooted Dirt

Decorative blocks.
A dirt-like block with roots on its texture.
Similar to coarse dirt, neither mycelium nor grass spread to it.

Sculk Block

Generates in the Sculk Crag.
Has an animated texture.
If a Sculk Block is touching a Sculk Sensor, the area it can feel vibrations will be doubled.

Sculk Tower

Generates in the deep dark caves.
Made of sculk and a bone-like material.
Has gravity.
When powered, it will grow upwards very fast until it reaches a block, but it will stop growing when it reaches 7 blocks high.
- When it grows it will place Barrow blocks below it, although if they are destroyed, they will not drop anything, and the the Barrow blocks above it and below it will also get destroyed.
Glows but does not emit light, similar to the Glow Squid or the Glow Item Frame.

Sculk Sensor

A redstone component that detects vibrations.
Generates in the Sculk Crag
Senses vibrations such as block placement, footsteps, and projectiles, and emits a redstone signal.
Emits particles when it senses a vibration nearby.
A comparator connected to it will emit different signal strengths based on what caused the signal.
Does not detect ambient weather such as rain.
Wool blocks between the sensor and the cause of the sound prevent the sensor from detecting the sound.

Sculk Trap

Generates in the deep dark biome.
Has a different top texture than the Sculk Block and Sculk Towers.
If powered, entities will fall through it.

Sculk Veins

A block that generates in the Sculk Crag biome.
If placed on a Grass Block, it will spread onto nearby Grass Blocks, if any.
- This will create Sculk Blocks, Sculk Sensors, Sculk Traps, and Sculk Towers.

Smooth Basalt

A basalt variant that composes the outer layer of amethyst geodes.
Can be obtained by smelting basalt.

Spore Blossom

Can only be placed on the underside of a block.
Sends green particles downward when opened.

Tinted Glass

A black variant of glass that is transparent to players, but does not let light through.
Can be crafted with 4 amethyst shards and a glass block.
- Stained glass cannot be used to craft tinted glass.
Drops itself if mined without Silk Touch or even by hand, unlike glass.

Tuff

A grayish stone that composes the outer layer of amethyst geodes.

Wolf Lichen

A new plant that has five types, Sunburst (orange), Rubrocincta (red), Marine (blue), purpura (Purple), and Dark Lichen (black).
They generate in Mycosphere biomes.

Items

Amethyst Shard

Obtained from breaking amethyst clusters.
The amount dropped can be increased with the Fortune enchantment.
Can be used to craft tinted glass, blocks of amethyst and a spyglass.

Bucket of Axolotl

Obtained by using a water bucket on an axolotl, similar to fish.
Can be used to carry around and empty out axolotls, also similarly to fish.

Bundle

Crafted with 2 string and 6 rabbit hide.
Used to store other items (except shulker boxes) inside of it.
Can only hold a stack of items, but is able to hold different types of items inside of it.
- Items with smaller stacks, such as ender pearls, take up more room in a bundle, and non-stackable items take up the whole bundle.
The bundle's contents can be opened by pressing use while holding it, throwing out its entire content into the world. When destroyed as an entity, it drops the items it currently has as well.
- Right-clicking a bundle in the inventory empties one item from the bundle.
The player receives a tutorial when first having a bundle in the inventory.
Even though bundles are not stackable, bundles can be nested.
- Can hold up to 16 bundles.
- Only empty bundles can be placed in other bundles without using commands.
Has a GUI when hovering over it.
- Shows contained items in its GUI's inventory slots when hovering over it, as well as fullness as a number.
Note: Bundles can hold any amount of any item if added using commands.

Copper Ingot

Obtained by smelting copper ore.
Used to craft copper blocks, lightning rods and spyglasses.

Glow Berries

Can be eaten, restoring 2 ().
Grow on cave vines.

Glow Ink Sac

Dropped by glow squids when killed.
Can be used to craft glow item frames.
Can be used to make text glow on signs.

Powder Snow Bucket

Obtained by using a bucket on powder snow.
Can be used to place a powder snow block wherever it is used, or can be used to fill cauldrons with powder snow.

Sculk Marrow

An item dropped from Barrow when broken without Shears.
Can be used to craft Chopped Marrow.

Spawn eggs

Added Axolotl, Glow Squid, Goblin, and Ladybird spawn eggs.

Spyglass

Crafted with 2 copper ingots and an amethyst shard.
When used, it zooms in on wherever the player is looking, but limits their view to a square.
- The scope texture is a glass square with a copper border.
- The overlay that limits the view can be removed with a resource pack or by pressing F1.
There is a unique animation for using the spyglass, which is visible in third person perspective or by another player.

Mobs

Axolotl

Spawns in Lush Caves.
The first amphibian added to Minecraft.
- Will dry out and start taking damage after 5 minutes of being out of water.
Can be caught using a water bucket, like fish.
Can be bred using tropical fish or buckets of tropical fish.
Come in five different colors (leucistic, yellow, brown, white, and purple/pink, and a rare blue Axolotl).
- Blue axolotls are very rare, with a ¹⁄1200 chance of spawning.
Plays dead when damaged, receiving Regeneration I.
- This regeneration ability is likely based on how real axolotls can regrow lost limbs.
Attacks drowned, guardians, squids, glow squids and fish, damage not yet official.
- Are always hostile to fish and squid, and hostile to drowned and guardians only when "tempted" by a player holding tropical fish.

Glow Squid

Originates from the mob of the same name in Minecraft Earth.
Underwater mob that behaves like a regular squid.
Spawns in Warm Warm Oceans and Glow Caverns.
Is attacked by axolotls without provocation.
Drops glow ink sacs when killed.
Does not affect the light level, only appearing as if lit up itself. Glows in the same way that magma cube cores, vexes, blazes and the eyes of spiders, drowned, and endermen do.
Stops glowing for a short time and swims away fast after taking damage.

Goblin

Spawn in Mountains, Nether Wastes, and large Caves on Boats.
- Can be found trapped in blocks or stuck on boats, if the block/boat is broken they give the player items, they are:
  - 1-3 Iron Ingots (27.5% chance).
  - 5-17 Coal (23.8% chance).
  - 1-2 Diamonds (5% chance).
  - 12-27 Redstone (4.43% chance).
  - 1 Ender Pearl (8.57% chance).
  - 14-34 Logs (16.72% chance).
  - 32-74 Planks (14% chance).
  - 1-3 Gold Ingots (27.5% chance).
  - 1 Netherite Ingot (0.034% chance (only in Nether)).
Drops nothing.
Cannot be bred.

Ladybirds

Found inside Mycosphere biomes.
Can be saddled and ridden on by feeding them Seeds.
- If they are ridden on they will be tamed.
- Players can fly on them by holding the jump button.
  - It will only stay in the air for a 5 seconds before it slowly glides down.
Come in different colors (red with black spots, brown with black stripes, red with white spots, dark yellow, and black with two yellow spots).
- Each color has 10 different variations
After five minutes of flying, they get tired.
- If they get tired they will jump on the player's back, after 2 minutes they will jump off and follow the player again, unless they are right-clicked, which will make them sit.

World generation

Caves

Added new noise caves, which come in three types: cheese, crack, and spaghetti caves.
Added flooded aquifer caves.
The old "carver" cave generation still generates, combining with the new caves.
Diamonds generate more often.

Cheese caves

Often form caverns of various sizes.
Utilize noise generators for generation.
Can form cave entrances when they intersect with land.

Spaghetti caves

Long, narrow caves.
Utilize noise generators for generation.
Can form cave entrances when they intersect with land.

Aquifers

Used to generate bodies of water in new caves.
Magma blocks may generate at the bottom of these new water bodies, creating downward bubble columns.
Replaces the old underwater cave carvers/canyons.
Fish spawn in aquifers if it is under an ocean or river.

Amethyst Geodes

A new feature found uncommonly underground (can rarely appear exposed to the surface close to sea level).
Contains blocks of amethyst and budding amethyst blocks, which are encased in a shell of calcite and tuff.
- Also generates with a small air pocket nearby which may open into the geode.
Generally generates at or below sea level (y = 63).
Most commonly generates at lower levels (y = 0 to y = 40)
Overrides standard caves and ravines, but is overridden by abandoned mineshafts.

Dripstone Caves

A new underground biome, consisting of a massive cave biome containing vast quantities of stalactites and stalagmites.
Made up of primarily dripstone blocks and stone, with large clusters of dripstone blocks hanging from the ceiling, pointed dripstone on the floor and ceiling and many pools of water.

Mycosphere

A new underground biome with Giant Mushrooms everywhere.
Most of the ground is covered by Lichen Blocks and Lichen.
Ladybirds spawn here.

Command format

/item

Modifies the inventory of a block or entity.
- This command has three forms:
  - /item <target> replace <item stack> [<count>] – same as old /replaceitem
  - /item <target> modify <modifier> – modifies item (without copying).
  - /item <target> copy <source> [<modifier>] – copies item for source to target(s), optionally applying modifier
- Possible sources and targets: entity <selector> <slot> or block <x> <y> <z> <slot>
- For example, /item block ~ ~ ~ container.0 copy entity @s enderchest.0 will copy first item from player's enderchest to first slot of container player is currently standing on.

Item modifiers

Reuse functions syntax of a loot table to describe item modification in /item command.
The function part of loot tables can now be defined as separate data pack resource in item_modifiers directory.
- Such files can contain a single function (i.e single JSON object) or an array of functions.

Gamerules

freezeDamage
- Whether entities take damage from freezing inside of powder snow.
playersSleepingPercentage
- Controls what percentage of players must sleep to skip the night.
- When set to 0 or a negative value, a single player is sufficient to skip the night, and night is skipped immediately without the falling asleep transition.
- When set over 100, the night cannot be skipped.
- Set to 100 by default.

Gameplay

Death messages

Added 6 new death messages:
- "<player> froze to death"
- "<player> was frozen to death by <entity>"
- "<player> was skewered by a falling stalactite"
- "<player> was skewered by a falling stalactite whilst fighting <entity>"
- "<player> was impaled on a stalagmite"
- "<player> was impaled on a stalagmite whilst fighting <entity>"

Loot tables

New condition: value_check
- Checks range of value.
- Parameters:
  - value – see "New value providers" section (currently combination of random generators and score)
  - range – min/max range
New functions:
- set_enchantments
  - Modifies enchantments on item.
  - Parameters:
    - enchantments – map of enchantment id to level value (can be score or random number)
    - add – if true, change will be relative to current level. If false, level will be replaced with current value (default behavior)
- set_banner_pattern
  - Sets tags needed for banner patterns. Parameters:
    - patterns - list of pattern objects:
      - pattern - name of pattern (square_bottom_left, bricks, etc.)
      - color - name of color (light_gray, etc.)
    - append - if true, new elements will be appended to existing ones instead of replacing
New value providers: score
- Returns scaled scoreboard value.
- Parameters:
  - score – scoreboard name
  - target – same as target in score predicate
  - scale – scaling factor (float)

General

Particles

Added 7 new particle types: dust_color_transition, falling_spore_blossom, glow, glow_squid_ink, snowflake, spore_blossom_air and vibration.

Tags

Added the axolotl_always_hostiles entity type tag.
- Contains tropical fish, pufferfish, salmon, cod, squid and glow squid.
- Axolotls are always hostile towards entities in this tag.
Added the axolotl_tempted_hostiles entity type tag.
- Contains drowned and guardians.
- Axolotls are hostile towards entities in this tag if they have been tempted.
Added the axolotl_tempt_items item tag.
- Contains the tropical fish item and bucket of tropical fish.
- Items in this tag can be used to tempt axolotls.
Added the azalea_log_replaceable block tag.
- Contains the #flowers block tag, the #leaves block tag, grass, ferns, sweet berry bushes, and small dripleaf plants.
Added the candle_cakes block tag.
- Contains all 17 types of candle cake.
- If the player puts a candle on a cake, and keeps clicking the candle on the cake, the candle will be duplicated.
- Blocks in this tag are considered candle cakes and can be lit, if they have the lit block states set to false.
Added the candles block and item tags.
- Contains all 17 types of candles.
- Blocks in this tag are considered candles and can be lit, if they have the lit and waterlogged block states and both are false.
- Cakes use this tag to determine if a candle item can be placed on it or not.
Added the cauldrons block tag.
- Contains cauldrons, water cauldrons, lava cauldrons and powder snow cauldrons.
- This tag is used in certain pathfinding processes.
Added the cave_vines block tag.
- Contains the cave vines body block and cave vines head block.
Added the crystal_sound_blocks block tag.
- Contains amethyst blocks and budding amethyst.
- Blocks in this tag play the "amethyst block chime" sound repeatedly for a short amount of time after being stepped on, gradually decreasing in volume.
Added the dripstone_replaceable_blocks block tag.
- Contains the base_stone_overworld block tag and dirt.
- Used in dripstone generation to determine what dripstone can replace and what pointed dripstone can generate on.
Added the fox_food item tag.
- Contains sweet berries and glow berries.
Added the freeze_immune_wearables item tag.
- Contains leather boots, leather pants, leather tunic, and leather cap.
- Having an item in this tag in an armor slot prevents players from freezing.
Added new game_events tag type.
Added the ignored_by_piglin_babies item tag.
- Contains leather.
- Baby piglins do not attempt to pick up items in this tag. Adult piglins are unaffected. Baby piglins still follow the other rules adult piglins follow.
  - If an item is in this tag while simultaneously being recognized as a wanted item by piglins, this tag takes precedence.
Added the ignore_vibrations_sneaking game event tag.
- Contains the step, swim, falling, and shooting projectile events.
- Game events in this tag will be ignored by sculk sensors if the source entity is sneaking.
Added the inside_step_sound_block block tag.
- Contains snow and powder snow.
- Blocks in this tag will create snow stepping noises while the player walks in them.
Added the lush_plants_replaceable block tag.
- Contains the #base_stone_overworld block tag, the #cave_vines block tag, dirt, gravel, sand, moss block, the #flowers block tag, grass, tall grass, moss carpet, small driplead, big dripleaf, big dripleaf stem, and vines.
Added the occludes_vibration_signals block and item tag.
- Contains the wool block and item tag.
- Blocks in this tag will prevent sculk sensors from hearing vibrations if the block is between the sculk sensor and the vibration.
- As thrown entities, items in this tag do not trigger vibrations.
Added the piglin_food item tag.
- Contains raw and cooked porkchop.
- Piglins can eat items in this tag.
  - Eating refers to the piglin seeking out and picking up an item without appearing in its inventory, thus vanishing.
Added the powder_snow_walkable_mobs entity tag.
- Contains foxes, rabbits, endermites, and silverfish.
- Entities in this tag can walk on top of powder snow.
Added the vibrations game event tag.
- Contains every game event.
- Game events in this tag will trigger sculk sensors.

Textures

Added a block texture named root_vines_head.png.
- This texture is unused in-game.

Changes

Blocks

Banner

The unused "base" pattern has been renamed to the "field" pattern and given proper translation strings (its ID is still "base").

Cake

Have a variation called "Candle Cake".
- Can be created by using a candle on an uneaten cake.
- The candle on the cake comes with 17 colors, depending on the color of the candle used to create it.
- The candle will pop off when any of the cake is eaten.

Cauldron

Can now be filled with lava and powder snow.
- Lava filled cauldrons can damage players and mobs inside of them, and give off a redstone comparator signal of strength 1.
- Powder snow cauldrons are formed when cauldrons are under the sky during snowfall.
- Can also be filled with powder snow by using a powder snow bucket on it.
Have been split into normal, water, lava, and powdered snow cauldrons.

Composter

Some items are now compostable:
- 30% chance: non-flowering azalea leaves, glow berries, moss carpet, small dripleaf, hanging roots.
- 50% chance: flowering azalea leaves.
- 65% chance: spore blossoms, non-flowering azalea, moss blocks, big dripleaf.
- 85% chance: flowering azalea.

Dispenser

Can now place powder snow using a powder snow bucket.
- Also can remove it using a bucket.

Grass Path

Renamed to "Dirt Path", as per Bedrock Edition.
- The block ID has also been changed to dirt_path.
Can now be made with dirt, coarse dirt, mycelium, and podzol by using a shovel.

Lapis lazuli block

Renamed to "Block of Lapis Lazuli".

Ores

Changed Textures of Coal, Diamond, Gold, Iron, and Redstone Ores.

Piston

Particles now appear if a block is broken by a piston.
- Sounds, however, do not play.
Breaks Budding Amethyst if pushed/pulled with a piston/sticky piston.

Rails

Are now able to be waterlogged.
No longer break when contacted by water.

Signs

Can now be tinted with glow ink sacs to make the text glow.
- Glowing signs do not affect the light level, only appearing as if the text itself is illuminated.
- A new lit block state had been added to indicate whether the sign text is lit up.
- Regular ink sacs can be used to remove the glowing effect.
- Now has sounds for being dyed.

Stonecutter

Can be used to craft the different copper block variants.

Structure block

Default mode of structure blocks is now "Load". "Data" is now hidden by default.
"Data" can be accessed by clicking the mode button while holding the Alt key.

Water

Flowing water no longer breaks rails.

Items

Clock

The texture has been changed.

Compass and Lodestone Compass

The texture has been changed.

Firework Rockets

Simple firework rockets with one gunpowder can now be crafted using the recipe book.

Pufferfish

The strength of the poison effect has been decreased from IV to II.

Shulker boxes

They now drop their items when destroyed as entities.

Mobs

Drowned

Now have a chance of dropping a copper ingot instead of a gold ingot.

Foxes

Eat glow berries.

Shulkers

If a shulker is hit by another shulker's projectile, it now has a chance of spawning a new shulker. Shulkers are more likely to spawn new shulkers when there are fewer shulkers nearby.

Skeletons

Begin the process of turning into strays when they are inside powder snow after 30 seconds (600 game ticks) and finally turn into strays after 45 seconds (900 game ticks).

Wandering Traders

May now sell Small Dripleaf.

Non-mob entities

Experience Orbs

Will now sometimes merge when in large quantities, to improve performance.
- Merging will not affect the amount of experience gathered from collecting the merged orbs.
No longer follow dead players.

Minecarts

Can now move in water, but move considerably slower than they do on land.

World Generation

Biomes

Biome-specific sky colors now blend more smoothly.

Chunks

The Overworld now has a total height of 384 blocks.
- The world has been extended 64 blocks up and 64 blocks down, which means it's now possible to build from layer -64 to layer 319 in the Overworld.

Mineshafts

Mineshaft pieces no longer generate if they were fully floating in the air.
Corridors now generate with Wooden logs as pillars for support or chains and fence (hanging support) if needed.
Cobwebs no longer generate floating without an adjacent block.

Command format

/replaceitem

Removed /replaceitem command.
Replaced with /item ... replace.

Gameplay

Absorption effect

The yellow absorption hearts will now stay yellow if the player has the Poison or Wither effects, instead of appearing empty.

Advancements

Glow berries are now required for A Balanced Diet.

Loot tables

Loot tables can now access scoreboard values by UUID.
Loot table values inside random number generators can now be nested.
Changed condition: score
- entity parameter has now been replaced with target. It can either contain value from old entity field (like this) or be an score holder name in form {"name": "..."}.
Changed function: set_damage
- This function now has add parameter. If true, change will be relative to current damage. If false, damage will be replaced with current value (default behavior)
Changed function: set_count
- This function now has add parameter. If true, change will be relative to current item count. If false, item count will be replaced with current value (default behavior)
Changed function: copy_nbt
- source parameter can now be set to {"storage": <namespaced id>}, to access command storage.

NBT data

All projectile entity data now has a field called HasBeenShot.
- If this field is false, during the next tick the projectile will fire a projectile shot game event, causing any nearby sculk sensors to react.

Recipe Book

Some recipe-unlocking advancements had criteria names changed.
The chiseled nether bricks recipe is now unlocked by having a nether brick slab instead of a nether bricks block.
The chiseled polished blackstone crafting recipe is now unlocked by having a polished blackstone slab, instead of polished blackstone.

Snowfall

During snowfall, cauldrons under the sky now slowly fills with powder snow.

Subtitles

Changed Shulker bullet explodes to Shulker Bullet explodes.
Changed Shulker bullet breaks to Shulker Bullet breaks.

General

Block Models

Made the vine's block model much simpler.

Custom dimensions

Added height and min_y variables to dimension types, allowing for the height limit to be increased in custom worlds settings.

Data and Resource Packs

Changed the pack_version number in pack.mcmeta from 6 to 7.
Changed the resource pack version number from 6 to 7, as the following have been changed:
- Drowned texture mirroring has changed.
- Slots for the game mode selector are now 26 pixels instead of 25.
Data pack version is also changed to 7.

Dedicated servers

A dedicated server can enforce custom resource packs by setting require-resource-pack in server.properties. When this option is used, players will be prompted for a response and will be disconnected if they decline the required pack.

Entity storage

Entities have been extracted from main (terrain) chunks and are now stored in separate entities directory (similar to POI storage). Those new files are still region files with NBT.

Languages

Removed the Gothic, Kabyle, Maori, Mohawk, Nuk, Ojibwe, and Talossan languages as their translations were incomplete.

Libraries

The game now uses javabridge 1.1.23 instead of 1.0.22.

Menu screen

Buttons tied to a set of values can now be scrolled through.
Clicking ⇧ Shift on a menu button changes it to the previous value.
The debug mode can now only be accessed by holding Alt instead of ⇧ Shift while clicking on the world type button.

Obfuscation map

Changed the license included in the obfuscation map.

Resource packs

Improved performance when using many overrides on an item model.
toasts.png GUI texture has a new icon for the bundle tutorial.

Servers

Removed the max-build-height server setting.
Changed the error message for failing to connect to the authentication servers. Now says they are "not reachable" instead of "down for maintenance".

Tags

Added azalea leaves and azalea leaves flowers to the leaves block and item tags.

Translation strings

The "World Type" string no longer contains a colon (":"). The colon is still visible in-game, however.
Changed "Use VSync" to "VSync".
Removed the unused string for enabling VBOs, "Use VBOs".
Added strings, "Mode", "Type", "Triggering", and "Track output". These are read out by the narrator for buttons in the command block UI.

World Selection

Added unique warnings for downgrading a world.

Future Updates

1.17-1.25

1.26-1.35

Java Edition 1.26: Slime update | Java Edition 1.27: Jungle Update | Java Edition 1.28: Mushroom Update | Java Edition 1.29: Quests & Dungeons | Java Edition 1.30: Rails & Gales

1.36-1.50

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