HappyDiggers Snapshot Server

New Minecraft snapshot version is: 1.16.3.

New Minecraft snapshot version is: 1.16.4-pre1.

NEW FEATURES IN 1.16.4 PRE-RELEASE 1

• New UI called Social Interactions Screen

SOCIAL INTERACTIONS SCREEN

• Opens with a configurable key binding, by default "P"
• Whether a player is hidden resets when re-joining a server

TECHNICAL CHANGES IN 1.16.4 PRE-RELEASE 1

• New network protocol scheme, with a high bit (bit 30) set for snapshots. The protocol version will increase by 1 for each snapshot, but full releases may keep the same protocol version as the previous full release in cases where the network protocols are compatible
• More information is now added to the crash log in cases where poor performance causes the server to crash

Fixed issues:
[MC-199487] WorldGen Deadlock
[MC-192434] Netherite Leggings are textured weirdly

New Minecraft snapshot version is: 1.16.4-pre2.

CHANGES IN 1.16.4 PRE-RELEASE 2

• When logging in with a Microsoft account, players blocked in your account are now also blocked in the game
• When logging in with a Microsoft account, players blocked in your account are now also blocked in the game and account restrictions are now respected
• A button to open a link to the Accessibility Guide can now be found in the Accessibility Options screen

SOCIAL INTERACTIONS

• The status of a player is now listed below their name on the Social Interactions screen
• A new tab is available to filter by Blocked players in the Social Interactions screen
• Chat from blocked players is always hidden
• Realms invites from blocked players are hidden

Fixed issues:
[MC-202156] Social Interactions search box entries can go out of the box
[MC-202155] Outdated server warn text doesn't actually exist
[MC-202150] Slider bar on social menu appears broken
[MC-202147] Cursor in Social Interactions & Recipe Book & Anvil menu doesn’t blink
[MC-202145] Opening the Social Interactions menu in a singleplayer world open to LAN after attempting to join an outdated multiplayer server displays the name of the outdated server instead of the name of the current world
[MC-202143] Social Interactions search bar does not stay selected when switching tabs, although the cursor remains
[MC-202137] Social Interaction Screen says players for 1 player
[MC-202136] Social Interaction Toast icon doesn't render properly with Programmer Art resource pack
[MC-201885] Divide by zero error in the Ender dragon entity class can cause a server crash and infinite velocity

New Minecraft snapshot version is: 1.16.4-rc1.

Fixed issues:
[MC-202614] Search function in social interactions screen only finds names that begin with the letters that you typed in

New Minecraft snapshot version is: 1.16.4.

New Minecraft snapshot version is: 20w45a.

NEW FEATURES IN 20W45A

• Added bundles!
• Added candle!
• Added lava cauldron!
• Added copper!
• Added amethyst!
• Added lightning rod!
• Added spyglass!
• Added tinted glass!
• A shulker hitting a shulker with a shulker bullet can make a new shulker.

AMETHYST
AMETHYST BLOCKS

• Amethyst comes in block form inside the geodes in two ways: block of amethyst and budding amethyst.
• All types of Amethyst blocks (clusters included) create beautiful sounds when you walk on them, break them, place them, or hit them with a projectile – go make some music!

AMETHYST CLUSTERS

• Amethyst clusters grow from budding amethyst, which can be found inside geodes.
• Clusters have four growth stages: small amethyst bud, medium amethyst bud, large amethyst bud, and amethyst cluster.
• Clusters can only grow when they are placed on budding amethyst blocks.
• Fully-grown amethyst clusters drop four amethyst shards (or more with Fortune) when an iron pickaxe or higher is used, and drop nothing otherwise when broken.
• Clusters can be silk touched at any stage.

AMETHYST GEODES

• These huge geodes can be found anywhere underground in the Overworld.
• Amethyst geodes have an outer layer of a new stone called tuff.
• Amethyst geodes have a second layer of another new block called calcite.
• Amethyst geodes have an inner layer of various amethyst blocks.

AMETHYST SHARDS

• Amethyst clusters drop four amethyst shards (or more with Fortune).

BUDDING AMETHYS

• On any side of a budding amethyst block where there is air or a water source block, a small amethyst bud will eventually grow.
• Amethyst Buds can only grow when attached to budding amethyst and will grow until they become amethyst clusters.

BUNDLES

• Bundles are items that hold other items.
• A bundle can hold a mixture of items, but only one stack’s worth. For example, a bundle could fit:
• 64 dirt
• 32 dirt + 32 stone
• 32 dirt + 8 ender pearls
• One of every color of wool, concrete, carpet and terracotta (64 blocks in total)
• Or one diamond helmet
• Use right-click to put an item into a bundle.
• Right-click a bundle to empty it.
• Wrap a present in a bundle and give it to your friend!

CANDLES

• Candles come in all 16 colors + one uncolored variant.
• Up to four can be placed in one block.
• Candles allow you to properly wish someone a happy birthday.
• Waterloggable! (But you cannot light them underwater, silly).
• Wish anybody a happy birthday with a candle cake!

CAULDRONS

• Cauldrons can now be filled with buckets of lava!
• Filled lava cauldrons give off a redstone signal of strength 1.

COPPER
COPPER BLOCKS

• Craft nine copper ingots to a copper block.
• Craft cut copper, cut copper stairs and cut copper slabs.
• Use honeycomb to craft waxed copper blocks.

COPPER ORE

• Copper ore can be found in ore blobs across Overworld, similar to iron and coal (this is not the final generation for copper…)
• Smelt copper ore to get a copper ingot.

LIGHTNING ROD

• The lightning rod is crafted from three copper ingots.
• Keep your builds safe (well, as long as the closest area around the lightning rod is fireproof) during thunderstorms!
• The lightning rod will protect an area of 4 * 16 blocks around it from the, sometimes devastating, lightning strikes!
• Lightning rods give off a redstone signal when struck by lightning

OXIDATION

• Copper will oxidize over time
• There are for stages: copper, lightly weathered copper, semi-weathered copper, and weathered copper.
• It takes 50-82 Minecraft days (in loaded chunks) for a copper block to oxidize one stage.
• Waxed copper blocks will not oxidize.
• You can wax any oxidation stage – how lovely that means you can keep that pretty lightly weathered copper block in it’s lightly weathered stage forever!

SPYGLASS

• You can use your spyglass to see faraway things.
• Pretend to be a sea captain, or catch your neighbor in the act as they dye your sheep lime green.
• The spyglass is crafted from two copper ingots and one amethyst shard.

TINTED GLASS

• Tinted glass is a type of glass that does not allow light to pass through.
• Tinted glass is crafted by putting a glass block in the middle of four amethyst shards.
• Tinted glass can be obtained without silk touch; it does not shatter like normal glass.

CHANGES IN 20W45A

• Experience orbs now sometimes merge when in large quantities to improve performance. This does not change the rate at which the player can absorb them – it simply limits the amount of separate orbs floating around in the world. Orbs that merge will gain the lifetime of the most recently created one.
• Particles now appear when pistons break blocks.
• Simple firework rockets with one gunpowder can now be crafted using the recipe book.
• Dirt paths (formerly grass path) can now be made by using a shovel on dirt, podzol, mycelium, or course dirt (as well as grass).
• Minecarts and rails work in water.

MINECARTS
Minecarts and rails work in water

• All rails can be waterlogged (works with a dispenser & water bucket too).
• Flowing water doesn’t break rails.
• Minecarts can pass through water, but get slowed down more than usual.

TECHNICAL CHANGES IN 20W45A

• Entities are now saved separately from terrain chunks.
• Added loot table function set_banner_pattern
• Pack format in version.json has been split into data and resource versions
• Servers can now require custom resource packs to be accepted

CUSTOM SERVER RESOURCE PACKS
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 a separate entities directory (similar to POI storage).
Those new files are still region files with NBT.

LOOT TABLES
NEW FUNCTIONS
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

Fixed issues:
[MC-202246] Drowned navigation causes memory leak/performance degredation
[MC-198807] Making piglins and piglin brutes angry at certain entities (like dropped items) crashes the game
[MC-198414] if the angle in /spawnpoint is set to +-infinity, and the player dies, it will kick the player, and upon rejoin will crash the game
[MC-198129] ReplaceBlobsFeature changed from 1.16.1 to 1.16.2, affecting Basalt Delta generation
[MC-197524] Border chunks do not enforce neighbors to be loaded, causing light updates to get stuck
[MC-197179] Baby piglins that pick up leather don't despawn, cluttering the Nether with unnecessary baby piglins
[MC-197140] Jack o'Lantern doesn't come after Carved Pumpkin in Creative Inventory
[MC-197009] Referencing empty item tag in recipe can crash client
[MC-196542] Small cleanup for skylight propagation code
[MC-195351] Comparator in compare mode can schedule unneeded tileticks
[MC-195126] plains_animal_pen_3 misplaced blocks
[MC-195125] plains_animal_pen_1 misplaced block
[MC-193071] Eating food items that return empty containers still play gear equipping sound
[MC-192930] Zombies picking up items play the gear equipping sound and subtitle
[MC-192879] Wall incorrectly placed on certain taiga houses
[MC-192876] Misplaced trapdoor on taiga_decoration_6
[MC-192629] plains_stable_2 misplaced blocks
[MC-192594] plains_stable_1 misplaced blocks
[MC-190896] Lag when opening a shipwreck chest containing buried treasure map
[MC-189565] Some entities do not render inside of spawners and producing error log spam in console, potentially causing lag
[MC-185360] Milking a mooshroom for stew still plays armor equip sound/shows Gear equips subtitle
[MC-185359] Using a bucket in Survival mode still plays generic armor equipping sound/shows Gear equips in subtitles
[MC-185357] Removing a plant from a flower pot still plays generic armor equipping sound/shows Gear equips in subtitles
[MC-181889] Equipping sound plays when mobs picking up non-armor items
[MC-177624] Entrance in snowy_medium_house_2 is asymmetrical
[MC-177622] One log in taiga_butcher_shop_1 seems to be misrotated - causing the side roof to look asymmetrical
[MC-175959] One door is open in taiga_shepherds_house_1
[MC-174685] Drowned arm texture is reversed by the model
[MC-171852] Putting item in a spectator's hand plays sound "Gear equips" for other players
[MC-169945] Skeletons don't burn in minecarts while being exposed to daylight
[MC-169900] Incorrect jigsaw setting in snowy_small_house_8
[MC-141034] taiga_fisher_cottage_1 is filled with water
[MC-136497] XP orbs causing severe lag
[MC-135552] Dead Entities are saved to chunk
[MC-133691] Blocks can't be placed normally on a full cauldron
[MC-130584] When a structure loads, water sources in the structure spread into waterloggable blocks
[MC-130449] Cartographer villager freezes or crashes the game when unlocking explorer maps
[MC-127692] Experience build up in furnace when using a hopper which can cause severe lag
[MC-127201] /replaceitem makes quite an obnoxious sound, which is not heard by the person whose items are being replaced.
[MC-112147] Lava burning items or XP orbs sound muted when "Friendly Creatures" slider is turned off
[MC-108469] Chunk-wise entity lists often don't get updated correctly (Entities disappear)
[MC-98219] Experience orbs follow dead players

New Minecraft snapshot version is: 20w46a.

NEW FEATURES IN 20W46A

• Added powder snow

POWDER SNOW
Snowier snow!

• Powder Snow is a trap block that causes any entity that walks into it to sink in it
• You can pick up and place powder snow with a bucket
• Wear leather boots to prevent yourself from sinking into powder snow blocks
• Leave a cauldron outside in falling snow and it will fill with powder snow

FREEZING

• Standing in powder snow will slowly freeze an entity
• Once frozen, freeze damage is done every few seconds to the frozen entity
• Each piece of leather armor warn causes an entity to freeze more slowly
• Wearing a full set of leather armor prevents freezing entirely

CHANGES IN 20W45A

• The range in which a lightning rod attracts lightning has been doubled
• Copper blocks are now crafted from four copper ingots
• Sky color now varies smoothly when moving between different biomes
• Buttons that change value (like Difficulty) can now be controlled with mouse wheel
• Clicking on button that changes value while holding shift key changes to previous value
• “Debug” world type can now be accessed while holding alt key (was shift)

TEXTURES
Changed a number of the textures for blocks and items introduced in the previous snapshot:

• Cut copper
• Lightning rod
• Calcite
• Amethyst block
• Budding amethyst block
• Tinted glass
• Candle item icons
• Copper ingot item icon
• Amethyst shard item icon
• Bundle item icon

TECHNICAL CHANGES IN 20W46A

• Removed /replaceitem command
• Added /item command
• Added item modifiers, which reuse loot table functions syntax to describe item modification in /item command
• Data pack version is now 7
• Loot tables can now access scoreboard values by UUID
• Loot table values inside random number generators can now be nested
• Default mode of structure blocks is now Load. Data is now hidden (but can be accessed by clicking mode button while holding alt key)

ITEM MODIFIERS
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.

COMMANDS
ITEM
Modifies item or block inventory.
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>
• 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.

LOOT TABLES
NEW CONDITIONS
VALUE_CHECK
Checks range of value.
Parameters:

• value - see “New value providers” section (currently combination of random generators and score)
• range - min/max range

CHANGED CONDITIONS
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 FUNCTIONS
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)

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)

COPY_NBT
source parameter can now be set to {"storage": <namespaced id>}, to access command storage.

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)

NEW VALUE PROVIDERS
Note: value providers can be used in same places as random number generators.

SCORE
Returns scaled scoreboard value.

Parameters

• score - scoreboard name
• target - same as target in score predicate
• scale - scaling factor (float)

DATA PACKS
Changes to data packs for version 7:

• Removal of /replaceitem (replaced with /item replace)
• score loot table condition: entity parameter has been replaced with target

RESOURCE PACKS
Changes to resource packs for version 7:

• Drowned texture mirroring has changed (see MC-174685)
• slots for the game mode selector are now 26 pixels instead of 25

Fixed issues:
[MC-203880] Floating creepers / creeper with no AI
[MC-203746] Levitation particles go on forever when killed by a levitating creeper
[MC-203648] The armour stand model floats above its base
[MC-203646] Some mobs won't despawn when switched to peaceful
[MC-203644] Cats & Ocelots are missing one of their legs
[MC-203643] Command modified bundle has a bigger progress bar than a slot
[MC-203631] Amethyst buds do not drop themselves with silk touch
[MC-203622] Arm when using Spyglass aligned wrong on Multiplayer
[MC-203621] Unable to pick up experience orbs
[MC-203574] Decorations don't generate in the Nether
[MC-203562] Shulker boxes animate when shulkers do
[MC-198725] Crash when clicking "Presets" after setting the superflat preset with a non-existent biome
[MC-198514] Creating a superflat world with nothing but air crashes the game
[MC-197276] Pufferfish gives poison IV instead of II
[MC-196425] "Off" is not completely capitalized for the Distortion Effects and FOV Effects sliders, which is inconsistent with other sliders
[MC-189482] LAN World screen buttons are selected in the wrong order when using Tab
[MC-188448] Food pops off of campfire when extinguished
[MC-185605] Kelp generates on top of Magma Blocks
[MC-183917] Min and max are both required in entity_scores condition
[MC-183771] Gamemode switcher icons in the F3+F4 menu are not centered
[MC-182954] "block.minecraft.banner.base.<color>" displays raw translation string (is untranslated)
[MC-162910] Additional map is created when using an empty map in Creative in a newly created world
[MC-147729] Crafting via the recipe book can delete items if picking up items while crafting
[MC-143821] Using empty map in creative mode can create additional map with ID 0
[MC-110903] Cannot remove horse saddle using /replaceitem
[MC-99259] As of 1.9, the wither health bar doesn't go up during spawn
[MC-80468] Inconsistency between block names
[MC-53518] Endermen don't attack endermites spawned using spawn eggs or /summon
[MC-2490] TNT animation ends at 80 ticks, ignores fuse length changes

New Minecraft snapshot version is: 20w48a.

NEW FEATURES IN 20W48A

• Added dripstone blocks and pointed dripstone

POINTED DRIPSTONE

• Forms a stalactite if placed on the ceiling or a stalagmite if placed on the floor
• Can be combined to form longer stalactites & stalagmites
• Stalagmites break if not attached to something below
• Landing or jumping on a stalagmite hurts! They are sharp
• Stalactites fall down if not attached to something above
• Being hit by falling stalactite hurts! They are sharp
• Stalactites drip water (or lava if there is lava above the ceiling)
• A stalactite with a water source above the ceiling will gradually fill a cauldron below with water
• A stalactite with a lava source above the ceiling will fill a cauldron below with lava after a while
• Thrown tridents break pointed dripstone

CHANGES IN 20W48A

• Right-clicking a bundle in the inventory now empties one item from the bundle
• Using a bundle now throws out its entire content into the world
• Advanced tooltips now show how full a bundle is
• Candles can now only be placed if there is a solid surface below
• Wearing any piece of leather armour now prevents freezing entirely
• Changed textures for amethysts, candles, clocks and compasses

TECHNICAL CHANGES IN 20W48A

• Added a freezeDamage game rule that allows players to toggle whether powder snow causes freeze damage or not

Fixed issues:
[MC-206058] /item modify doesn't visually update the model of an item in an item frame
[MC-205627] Item modifiers that change the count to 0 don't completely remove the item
[MC-205567] TNT flashes are translucent once again
[MC-205492] The 'Include entities' option in the structure block UI is the opposite of the actual behavior
[MC-205445] The Fabulous graphics warning is shown at the wrong time
[MC-205321] Item modifiers that change the item type don't work on entities
[MC-205269] Chest closing sounds desynced with closing animations
[MC-205220] Cannot manipulate horse.saddle using /item command
[MC-205197] Creating a map from an empty map no longer plays a sound
[MC-205145] Compass with nothing to point to will spin very rapidly when in bundle.
[MC-205072] Snow Ambient Effect sometimes don't show correctly on the edge of a Powder Snow Block
[MC-205069] Powdered snow doesn't give you frozen effect in creative mode
[MC-205041] Full leather armour does not prevent freezing damage
[MC-204424] Using a spyglass while gliding with an elytra points the spyglass down in third person view
[MC-204323] Inconsistency: Crafting copper blocks into slabs only yields 4 slabs instead of 6
[MC-203951] The elder guardian particle moves when an elder guardian moves
[MC-203925] Items inside of a bundle disappear if you empty the bundle in the inventory when in Creative mode while the inventory is full
[MC-203824] Weird Hand animation when attacking and using spyglass at the same time
[MC-203645] Spyglass wobbles when walking while in use
[MC-203602] Spyglass animation is wrong when swimming
[MC-198864] World border does not render below y=0 / above y=255
[MC-176614] Swimming and doing certain actions make the player look very odd/does not have animations for swimming + doing certain actions
[MC-3615] Lava and water are completely transparent at certain height levels

New Minecraft snapshot version is: 20w49a.

NEW FEATURES IN 20W49A

• Added dripstone caves biome
• Added sculk sensors

DRIPSTONE CAVES BIOME
This biome doesn’t generate naturally yet since it is designed for the upcoming larger caves. However, if you want to see the biome in the current caves you can create a single-biome world with dripstone caves.

• Contains plenty of pointed dripstone on the floors, ceilings, and small pools of water.
• In some places, you’ll find larger stalagmites, stalactites, and columns built from dripstone blocks.

SCULK SENSORS

• Introducing the bizarre, tendril-filled world of sculk – prepare for sculk sensors to creep you out with their unique ability to detect vibrations nearby.
• A vibration is anything that causes physical motion; if you are careful, there are some motions that are undetectable to sensors by sneaking.
• These sneak-friendly vibrations currently include walking, falling to the ground, or throwing/shooting projectiles.
• Sculk sensors will not listen to vibrations that are directly created by other sculk sources.
• When a vibration is detected, a signal is sent from the source location to the sensor at a speed of 1 game tick per block.
• Other vibrations cannot be detected by a sensor when a signal is already traveling to it.
• When the signal has arrived, the sensor will be activated for 40 game ticks (approximately 2 seconds).
• While activated, the sensor cannot detect other vibrations.
• Sculk sensors can detect vibrations in an 8 block radius around it.
• The efficient tool to mine sculk sensors is the hoe.
• They can be waterlogged.

REDSTONE EMISSION

• Sculk sensors emit a redstone signal when they are activated.
• The strength of the redstone signal is inversely proportional to the distance the vibration signal traveled.
• This means that the closer the vibration is, the stronger the Redstone signal is.
• The output is also scaled based on the sculk sensor’s radius, so it can reach the max redstone signal strength when the vibration is 0 distance away (directly on top of the sensor).

VIBRATION FREQUENCIES

• Sculk sensors have a unique interaction with comparators.
• Each vibration in the game falls under a certain frequency value, and this value can be measured with a comparator.
• With the right contraption, this allows you to detect when a certain action has occurred nearby.

Vibration Type	Frequency Value
Step	1
Flap	2
Swim	3
Elytra Free Fall	4
Hit Ground	5
Splash	6
Wolf Shaking	6
Projectile Shoot	7
Projectile Land	8
Start Eating	7
Finish Eating	8
Hit Entity	9
Add Item To Armor Stand	9
Open Block	11
Close Block	10
Switch Block	11
Unswitch Block	10
Press Block	11
Unpress Block	10
Attach Block	11
Detach Block	10
Open Container	11
Close Container	10
Dispense Failed	10
Use Flint And Steel	12
Place Block	12
Destroy Block	13
Place Fluid	12
Pickup Fluid	13
Cast Fishing Rod	15
Reel-In Fishing Rod	14
Extend Piston	15
Contract Piston	14
Explosion	15
Lightning Strike	15

WOOL OCCLUSION

• Wool has a special interaction with sculk sensors.
• If a wool block is in the way of a vibration source, the sensor will not be able to detect it.

TECHNICAL TIDBITS

• Sculk sensors have a cooldown period of 1 tick after being placed or after deactivating.
• During this short cooldown period, it cannot detect vibrations. This is to prevent it from activating itself when a contraption it is powering is being unpowered. Feedback is welcome on this point!

CHANGES IN 20W49A

• The fullness of a bundle now shows up regardless of whether advanced tooltips are on or off.
• Stalactites and stalagmites merge if the tips are next to each other unless you press shift while placing.

TECHNICAL CHANGES IN 20W49A

• A new game event system has been implemented to support Sculk Sensors detecting vibrations.
• World height-related values are now exposed for customized worlds.
• Removed the max-build-height server setting.
• Added occludes_vibration_signals block tag. Anything in this tag will occlude vibrations, and inherits wool tag entries by default.
• New particle types: vibration and dust_color_transition
• A new game event system has been implemented to support Sculk Sensors detecting vibrations.

GAME EVENTS
This system has been developed to identify when certain in-world actions are happening in nearby chunks, particularly so the new sculk sensor can detect these events as vibrations.
The following is a list of the initial game events:

• minecraft:step
• minecraft:swim
• minecraft:flap
• minecraft:elytra_free_fall
• minecraft:hit_ground
• minecraft:splash
• minecraft:projectile_shoot
• minecraft:projectile_land
• minecraft:entity_hit
• minecraft:block_place
• minecraft:block_destroy
• minecraft:fluid_place
• minecraft:fluid_pickup
• minecraft:block_open
• minecraft:block_close
• minecraft:block_switch
• minecraft:block_unswitch
• minecraft:block_attach
• minecraft:block_detach
• minecraft:block_press
• minecraft:block_unpress
• minecraft:container_open
• minecraft:container_close
• minecraft:explode
• minecraft:armor_stand_add_item
• minecraft:wolf_shaking
• minecraft:dispense_fail
• minecraft:fishing_rod_cast
• minecraft:fishing_rod_reel_in
• minecraft:piston_extend
• minecraft:piston_contract
• minecraft:flint_and_steel_use
• minecraft:eating_start
• minecraft:eating_finish
• minecraft:lightning_strike

TAGS
There are also game event tags that come with this and can be modified by data packs. They can be found under data/minecraft/tags/game_events.

• vibrations Determines which game events are considered vibrations by the Sculk Sensor. Currently, all added game events are in this tag by default.
• ignore_vibrations_stepping_carefully Which game events should be ignored by the Sculk Sensor when the source of the event is sneaking.

The following game events are in ignore_vibrations_stepping_carefully by default:

• minecraft:step
• minecraft:hit_ground
• minecraft:projectile_shoot

Fixed issues:
[MC-206878] Pointed dripstone attached to a piston is not removed as the piston extends
[MC-206790] Waterlogged dripstone does not update
[MC-206711] Coding error at net.minecraft.world.entity.Entity.resetPos()
[MC-206691] Pointed dripstone replaces items with pointed dripstone items
[MC-206682] Floating dripstone tips are sometimes left behind from large dripstone pillars
[MC-206669] Inconsistency between dripstone and non-mob entities
[MC-206643] When a dripstone's hitbox extends into the space of another block, the area that extends into said block cannot be targeted
[MC-206642] Stalactites destroy items they fall on, however stalagmites don't
[MC-206615] Pointed dripstone's hitbox can extend further than a block, causing nearby stalactites to not be able to fall
[MC-206613] Pointed Dripstone duplicates when the block it was attached to is removed
[MC-206606] Frustum stage of stalactites negates fall damage
[MC-206599] Pointed dripstone can be placed atop each other, even if a player would be inside the hitbox of the lower dripstone
[MC-206594] Large stalactites falling occasionally don't drop all of their pointed dripstone items
[MC-206591] Setting any floating block to a pointed dripstone, causes the replaced block to drop as an item
[MC-206583] Cauldrons below stalactites at least 2 blocks tall won't fill up
[MC-206578] Large pillars of stalactites don't fall when the block above is removed
[MC-206563] Pointed dripstone is not connected to the player's hand
[MC-206553] Pointed Dripstone creates water particles in the Nether
[MC-205629] Unused sign cache when rendering signs
[MC-205391] Waxing cut copper doesn’t prevent it from oxidising
[MC-205096] Hardcore hearts lose all color when player is taking freeze damage
[MC-205043] Absorption hearts appear broken when taking freezing damage
[MC-204314] Double copper slabs only drop a single slab when mined
[MC-203797] Placing or removing a block over the void causes a DecoderException on servers
[MC-201840] Optional function tags sometimes don't run even when the tag exists
[MC-18880] The Absorption effect has no texture for poison/wither hearts (appears empty instead)

Sculk sensors in the latest snapshot are looking very interesting. Redstone is getting a pretty awesome addition with it. Check it out :)

https://www.youtube.com/watch?v=Ei_0NiYL-Fg

Quote:

---

Originally Posted by InsaneJ

Sculk sensors in the latest snapshot are looking very interesting. Redstone is getting a pretty awesome addition with it. Check it out :)

https://www.youtube.com/watch?v=Ei_0NiYL-Fg

---

That's pretty cool, motion sensors was always something I thought would be cool if there was a way to do it without command blocks, tripwire and whatnot, and now there is! Can't wait to see what people make out of it.

New Minecraft snapshot version is: 20w51a.

NEW FEATURES IN 20W51A

• Added the axolotl!

AXOLOTL

• Amphibious!
• Axolotls currently love tropical fish, though this may change. Tropical fish or tropical fish buckets can be used to mate axolotls.
• Axolotls will swim around with you if you’re holding a tropical fish or tropical fish bucket in one of your hands.
• When a player kills a mob that the axolotl was attacking or being attacked by, the axolotl will show its appreciation by granting the player temporary regeneration and removing any mining fatigue effects.
• You can pick up your axolotl in a water bucket and carry it around just like a salmon or cod!
• Axolotls will always chase after squids and other types of fish.
• Axolotls are skittish, but they will attack Drowned and Guardians if you tempt them with their favorite food – tropical fish!
• Axolotls do not like it out of the water and will dry up and begin taking damage if they are out of water for longer than 5 minutes.
• An axolotl will not dry up as long as they are in water or rain.
• Sometimes when an axolotl takes damage, it will pretend to be dead so that it stops being attacked.
• There are four common varieties and 1 rare variety of axolotl.
• Axolotls do not spawn in the world in the world yet, but you can find spawn eggs for them in the creative inventory.

CHANGES IN 20W51A

• Bundles and shulker box items will now drop their items when destroyed.
• Some changes have been made to sculk sensors.

SCULK SENSORS

• Eating Start has been removed as an event for a few reasons.
  
  • It is inconsistent with our philosophy around vibrations. Mining a block is not considered a vibration because a physical event hasn’t happened in the world yet (you can stop mining and the block will revert). This is the same for eating: you can start eating, but then stop and the food reverts as if eating never occurred.
  • It wasn’t widely considered to be a useful event for players to use sculk sensors with.
  • Eating Finish is staying, and will likely be much more useful to sculk sensors for this scenario.
  
  
• Walking on wool no longer causes vibrations.
• Throwing wool as an item onto the ground no longer causes vibrations.
• Sculk sensors are now silent while waterlogged.
  ​

VIBRATION FREQUENCY CHANGES
As we continue to consider feedback from the community, some changes to the frequency ranges have been made. We expect this to change quite heavily up until release to figure out the most interesting ranges for gameplay, and as always feedback is extremely welcome! Here is the newest table in this snapshot.

Vibration Types	Frequency Value
Step	1
Flap	2
Swim	3
Elytra Free Fall	4
Hit Ground	5
Splash, Wolf Shaking	6
Projectile Shoot	7
Projectile Land, Eating Finish, Entity Hit	8
Armor Stand Add Item	9
Block Close, Block Unswitch, Block Unpress, Block Detach, Dispense Fail	10
Block Open, Block Switch, Block Press, Block Attach	11
Block Place, Fluid Place, Flint And Steel Use	12
Block Destroy, Fluid Pickup	13
Fishing Rod Reel-In, Container Close, Piston Contract	14
Fishing Rod Cast, Container Open, Explode, Lightning Strike, Piston Extend	15

TECHNICAL CHANGES IN 20W51A

• Added gamerule playersSleepingPercentage (100 by default), which sets what percentage of players must sleep to skip the night. Setting to 0 will mean 1 player is always enough to skip the night. Setting above 100 will prevent skipping the night.

Fixed issues:
[MC-208082] Game stalls when any message is displayed in chat while playing with an expired session
[MC-207405] Nether stars can be blown up while being inside of a bundle/shulker box
[MC-205212] Desync when putting a candle on a cake in Survival mode
[MC-205057] Bundle inventory preview is off-center inside of the tooltip box
[MC-204146] Netherite can burn whilst inside of a bundle
[MC-204058] Placing a candle on a cake causes hunger display desync
[MC-203568] Trying to put a candle onto a candle cake duplicates the candle
[MC-203563] Cake appears eaten for a split second when putting a candle on it
[MC-176615] It is possible to destroy netherite items with lava by putting them inside a container
[MC-149799] When a crossbow is loaded and in the offhand, you do not see it anymore if you carry an item in the main hand

New Minecraft snapshot version is: 1.16.5-rc1.

New Minecraft snapshot version is: 1.16.5.

New Minecraft snapshot version is: 21w03a.

NEW FEATURES IN 21W03A

• Added glow lichen!
• Added glow squid!

GLOW LICHEN

• A dim light source that generates in caves.
• Use shears to pick it up.
• Use bonemeal to spread it along block surfaces.

GLOW SQUID
Glow squids have been added, but do not yet spawn naturally. You can find spawn eggs for them in the creative inventory.

• Glow Squids are well-lit and can be seen from even far distances!
• When killed, glow squids drop glow ink sacs.
• Glow ink sacs can be used on signs to make the text super visible, even at night! Works with colors!
• Craft a glow item frame by combining a glow ink sac with an item frame in a crafting table. Any item in a glow item frame is perfectly illuminated, even at night!
• Use an Ink Sac on a sign to remove the glow effect.
• Axolotls will attack any glow squids they see, so…be careful.

CHANGES IN 21W03A

• Dripstone blocks can be crafted from 4 pointed dripstone.

Fixed issues:
[MC-208666] Shulker boxes and bundles drop their items twice when thrown into a lava cauldron
[MC-208611] Shulkerboxes/bundles duplicate items when destroyed by two fire blocks simultaneously
[MC-208336] 'player' sub-predicate of 'entity_properties' predicate only passes if game mode is specified
[MC-207900] Summoning "dust" or "dust_color_transition" particles kicks nearby players when on a server
[MC-207388] Issues with chunk rendering when height limit is large
[MC-207335] Mobs cannot spawn in Dripstone Caves
[MC-207293] Dripstone generated in dripstone caves can replace lava sources which looks weird
[MC-207254] Dripstone caves generate merging dripstones in impossible ways
[MC-207250] Dripstone caves biome name is not properly capitalized
[MC-206923] Dripstone subtitles are not capitalized properly
[MC-206599] Pointed dripstone can be placed atop each other, even if a player would be inside the hitbox of the lower dripstone
[MC-206550] block.pointed_dripstone.drip_[liquid/cauldron] has no subtitles
[MC-206510] Game crashes when trying to shift-click a chest into the inventory of a donkey whose chest is being removed
[MC-206118] "type" in loot table number providers is not optional anymore
[MC-205076] Game mode selection is ordered differently
[MC-204337] Bundle use stat never increases
[MC-203571] Right-clicking an empty bundle sometimes plays hand animation
[MC-203373] Shulker bullet subtitles are not capitalized correctly
[MC-202202] Server is unable to prevent a player from dismounting a vehicle, causing a desync
[MC-200195] Boats don't try dismounting you on land
[MC-190677] Shulkers aren't aligned to the grid for a split second after being spawned in
[MC-186172] Shulkers open into blocks when unable to teleport
[MC-183884] Shulkers are afraid of being next to another shulker
[MC-168900] Shulkers teleport with original dimension coordinates after passing through portals
[MC-161334] Shulker boxes cannot be opened if next to a shulker mob
[MC-139265] Shulkers do not teleport correctly when going through a portal
[MC-121897] Gaps in an animation's used frames throws ArrayIndexOutOfBoundsException
[MC-119051] Random transparent line in shulker box GUI texture
[MC-113177] Shulkers cannot be pushed inside non-solid blocks
[MC-111196] Using a monster spawner to spawn shulkers spawns white shulkers
[MC-108717] Shulkers can't be pushed back
[MC-105344] Shulkers in boats and minecarts do not sit up if previousely attached to blocks sideways
[MC-92867] Setting Json text value to null throws exceptions and crashes
[MC-92349] Players can't tempt animals with food while other players are closer to the animal
[MC-91522] Shulker rendering position desync and generates ghost shulker when destroying shulker-ridden boat or minecart
[MC-89880] Spawner with weight 0 crashes game
[MC-9568] Mobs suffocate / go through blocks when growing up near a solid block

New Minecraft snapshot version is: 21w05a.

NEW FEATURES IN 21W05A

• Azalea bushes as well as flowering azaela bushes!
• Added cave vines and glow berries!
• Added drip leaves!
• Added decorative blocks for the upcoming lush caves: hanging roots and rooted dirt!
• Added moss!
• Added spore blossom!

CAVE VINES AND GLOW BERRIES

• Cave vines grow down from the ceiling, like weeping vines
• When they grow they have a chance of producing glow berries
• Glow berries are a natural light source as well as a food source
• Foxes eat glow berries
• Use glow berries to plant new cave vines
• Bonemealing a cave vine will create glow berries

DRIPLEAF

• Small dripleaf needs moisture, so it grows on clay or underwater
• Small dripleaf grow into big dripleaf when bonemealed
• Big dripleaf grows taller when bonemealed
• If you stand on a big dripleaf, it will tilt after a while and you will fall off
• You can crouch or jump to prevent a big dripleaf from tilting
• A tilted big drip leaf till tilt up again after a while
• The big dripleaf will break when hit by a projectile
• The wandering trader will sometimes sell small dripleaf plants

MOSS

• Two new decorative blocks: moss block and moss carpet
• Moss carpet can be crafted from moss blocks

SPORE BLOSSOM

• A beautiful large flower placed on ceilings
• Particles drip from it

CHANGES IN 21W05A

• The stonecutter can be used to craft the different copper block variants
• The stages of copper oxidization are now called “Copper Block”, “Exposed Copper Block”, “Weathered Copper Block” and “Oxidized Copper Block” in sequence of least to most oxidized
• Drowned now have a chance of dropping a copper ingot, they no longer drop gold ingots
• Added new sculk sensor events
• Changes to powder snow

SCULK SENSOR CHANGES
Added the following game events that the Sculk Sensor reacts to, along with corresponding frequency value:

Vibration Types	Frequency Value
Minecart Moving, Ring Bell, Block Change	6
Drinking Finish, Prime Fuse	7
Mob Interact	8
Equip, Shear, Ravager Roar	9
Entity Place	12
Entity Killed	13
Shulker Close	14
Shulker Open	15

• Block Change is for when player or dispenser action has changed a block. Example: cake slice being eaten
• Mob Interact is for specific mob interaction events that cause vibrations
• Prime Fuse is for both TNT and Creepers

POWDER SNOW CHANGES

• Flaming arrows now get extinguished when they collide with powder snow
• Skeletons now convert to strays when frozen
• Powder snow is now pushable by pistons and sticky pistons
• Foxes can now walk on top of powder snow without falling in

TECHNICAL CHANGES IN 21W05A

• Improved performance when using many overrides on an item model
• Copper oxidization is now a random tick effect and thus affected by the randomTickSpeed game rule

Fixed issues:
[MC-213512] Copper blocks are named differently from bedrock edition
[MC-212541] Shulkers are often incorrectly rotated upon generation
[MC-212537] Standing near a shulker slightly lifts you when they open
[MC-212532] Shulkers are spawned slightly mis-rotated after a shulker was hit by another shulker's shulker bullet
[MC-212422] Game crashes when generating a world with increased height limit
[MC-212347] Importing custom world file height is limited to 2047 instead of 2048
[MC-212331] Boats dismount you in the direction the boat is facing instead of the direction of the player
[MC-212291] Client can dismount vehicles independently from the server, causing a de-sync
[MC-212290] Commands "setblock" and "fill" don't work at or above height 1024 in some cases
[MC-212284] Crammed enitities pushed through blocks when growing to adults
[MC-212149] Shulker is sometimes mis-rotated when player teleports through a nether portal and reloading an active chunk with Shulker
[MC-212141] Shulkers get rotated when upgrading to 21w03a
[MC-212117] Placing glow lichen in lava creates waterlogged glow lichen
[MC-209625] Baby llamas suffocate when below a solid block while standing on top of a carpet
[MC-209361] Game crashes upon instantly click-replacing the block underneath a bamboo sapling with another bamboo
[MC-208477] Going into a dimension that has height higher than the maximum height crashes the game
[MC-208194] Sculk sensors do not detect when candle cakes are eaten
[MC-208193] Sculk sensors do not detect removing things from flower pots
[MC-207745] Sculk sensors do not detect when ender dragons shoot fireballs
[MC-207679] Sculk sensors do not detect the breaking of bee nests and beehives in Creative mode
[MC-207678] Sculk sensors do not detect collecting honey bottles
[MC-207677] Sculk sensors do not detect collecting water with bottles
[MC-207675] Sculk sensors do not detect books being placed onto lecterns
[MC-207674] Sculk sensors do not detect placing things in flower pots
[MC-207673] Sculk sensors do not detect lighting TNT with flint and steel
[MC-207672] Sculk sensors do not detect when creepers are set off with flint and steel
[MC-207671] Sculk sensors do not detect candles being placed into cakes
[MC-207670] Sculk sensors do not detect the placement of boats and minecarts
[MC-207600] Sculk sensor detects wrong sound for fishing rod
[MC-207592] Shooting bow with flame enchantment while sneaking triggers sculk sensor
[MC-207521] Ocelots and cats can still emit vibrations while sneaking
[MC-207520] Sculk sensors don't react to ravager roars
[MC-207473] Sculk sensors do not detect when ghasts shoot
[MC-207445] Sculk sensor doesn't detect squids swimming
[MC-207418] Breaking paintings/item frames/glow item frames does not alert sculk sensors, even though placing them does
[MC-207417] Directly breaking fire does not alert sculk sensors, but removing its supporting block correctly does
[MC-207407] Villages will always generate at least on y=0
[MC-207397] The fire extinguish sound plays every tick when the player is on fire and freezing
[MC-207391] Sculk sensors don't detect certain flying mobs
[MC-207387] Sculk sensors can sense players sneaking in water when they move, even when they're not swimming
[MC-207384] Flame arrows repeatedly trigger sculk sensors
[MC-207358] Sculk sensors don't detect shulkers opening and closing
[MC-207340] Sculk sensors do not detect buckets of fish being emptied
[MC-207329] Sculk sensors don't properly detect eating from other mobs
[MC-207300] Blocks being placed or picked up by an enderman are not detected by sculk sensors
[MC-207283] Extinguishing a campfire is not detected by sculk sensor
[MC-207277] Sculk sensor can't detect setting a fire with fire charge
[MC-207263] Inconsistency: Filling cauldrons with liquids or powder snow is not detected by sculk sensors
[MC-207262] Drinking potions or milk doesn’t cause vibrations even though eating does
[MC-207261] Bell ringing event is not considered a vibration
[MC-207258] Sculk sensors do not react to minecarts being driven
[MC-206113] Powder Snow causes Z-Fighting with Falling Blocks
[MC-205735] Baby cows can suffocate on stairs
[MC-205477] Occasional desync when trying to enter/exit a boat while the server is lagging
[MC-205401] "Fire extinguishes" Sound repeatedly plays when a mob that burns in daylight is in powder snow
[MC-205079] Cauldrons don't fill with powder snow in some biomes
[MC-204801] Large amounts of copper blocks lag the server and causes the worldsave to take forever
[MC-200906] Pufferfish hitbox incorrect when reloading world
[MC-199356] chatDelay in options.txt has a space between the colon and the value
[MC-198432] Pufferfish phases through blocks after reloading world
[MC-191714] Player is dismounted when standing on farmland while riding a horse/boat while the farmland turns to dirt, causing a desync
[MC-186879] Standing in fire and water spams the extinguish sound
[MC-163673] Baby husks, piglins, zombies, zombie villagers, and zombified piglins take damage when jumping into a space with a solid block above it
[MC-153254] Baby zombies/piglins take damage when pushed against ceiling by bubble columns
[MC-152265] Starting server outputs "unable to resolve BlockEntity for ItemStack" errors
[MC-149495] Pufferfish triggers tripwire without colliding with it upon reloading the game
[MC-148432] Sound spam while in water and lava at the same time
[MC-142711] Baby turtles take damage when pushed against ceiling
[MC-130098] Debug world spawns player at y=2 instead at y=70 where all the blocks are
[MC-9568] Mobs suffocate / go through blocks when growing up near a solid block

New Minecraft snapshot version is: 21w05b.

Fixed issues:
[MC-213802] Copper is not upgraded correctly from pre-21w05a worlds
[MC-213788] The game can randomly freeze
[MC-203813] Copper blocks are named inconsistently

New Minecraft snapshot version is: 21w06a.

NEW FEATURES IN 21W06A

• Added noise caves and aquifers

NOISE CAVES AND AQUIFERS

• Noise caves are a new way of generating caves, providing more natural variety. They can get really huge sometimes!
  Noise caves come in two flavors:
  
  • Cheese caves. Like the holes in swiss cheese. These often form caverns of various sizes.
  • Spaghetti caves. Long squiggly tunnels, sometimes wide like tagliatelle.
• No, they aren’t loud. The “noise” part of noise caves is a technical term and has nothing to do with sound.
• The old cave carvers and canyons still generate, combining with the noise caves to form interesting cave systems.
• As with carvers, when noise caves intersect the surface they form cave entrances.
• An aquifer is an area with local water level, independent of sea level. Aquifers are used during world generation to generate bodies of water inside noise caves. This sometimes results in large underground lakes!
• For now, aquifers are only used below y31. This means all noise caves between y31 and sea level (y63) will be flooded with water, and noise cave entrances will essentially be lakes. This will be fixed later.
• Magma sometimes generates at the bottom of underground bodies of water.
• Underwater cave carvers and underwater canyons have been removed since aquifers are used to generate water in caves instead.

CHANGES IN 21W06A

• Overworld build and generation limits have been expanded
• Mineshafts adapted to larger caves
• You can no longer crouch or jump to prevent a big dripleaf from tilting
• A big dripleaf will now tilt rather than break when hit by a projectile
• A redstone powered big dripleaf will not tilt (except when hit by a projectile)
• The textures for hanging roots and small dripleaves have been updated

WORLD GENERATION

• Generation range and build limits have been expanded by 64 blocks up and 64 blocks down, to a total range of 384 blocks.
• Underground features, structures, and caves generate all the way down to y -64.

MINESHAFT CHANGES

• Mineshaft pieces don’t generate if they would be fully floating in the air
• Mineshaft corridors are supported by log pillars when needed
• No floating cobwebs

Fixed issues:
[MC-214346] Big dripleaf can be broken with arrows in spawn protection
[MC-213813] Small dripleaf can destroy any block

New Minecraft snapshot version is: 21w07a.

NEW FEATURES IN 21W07A

• Added Grimstone!

GRIMSTONE
Grimstone can be found in the deepest parts of the underground and is slightly tougher to mine than normal Stone.

• Like Blackstone, Grimstone can be used to craft basic tools, furnaces and brewing stands.
• You can craft the following blocks with this new stone type:
  
  • Grimstone Slab
  • Grimstone Stairs
  • Grimstone Wall
  • Polished Grimstone
  • Polished Grimstone Slab
  • Polished Grimstone Stairs
  • Polished Grimstone Wall
  • Grimstone Bricks
  • Grimstone Brick Slab
  • Grimstone Brick Stairs
  • Grimstone Brick Wall
  • Grimstone Tiles
  • Grimstone Tile Slab
  • Grimstone Tile Stairs
  • Grimstone Tile Wall
  • Chiselled Grimstone

CHANGES IN 21W07A

• Tweaks and updates to world generation and ores
• Changes to the visuals of some ores and stone types
• Reordered Redstone Tab in Creative Inventory

WORLD GENERATION

• Tweaked huge caves to be more rare and decreased the chance that caves are filled with water
• Changed ore generation to match the new world height and to add more strategy to mining
• Tweaked size and positioning of diorite, andesite & granite generation
• Exception: Diorite and Granite and Dirt no longer generate below y = 0
• Strongholds are now mostly encased in stone
• Mineshaft corridors are now supported by log pillars below or chains above when needed

VISUALS

• Ores without unique shapes have been given new textures for accessibility reasons, so that each ore is distinguishable by shape alone
• Being the most iconic ore, Diamond Ore texture is staying the same to keep that classic feel maintained
• Blackstone, Polished Blackstone Bricks, and Cracked Polished Blackstone Bricks have had some minor touch-ups

CREATIVE INVENTORY

• The Redstone Tab has been reordered to prioritize highly-used blocks
• Redstone items/blocks have been grouped and ordered in the following way:
  
  • Essentials
  • Unique activators
  • Miscellaneous
  • Common activators
  • Openables

Fixed issues:
[MC-214986] Large dripstones only generate as stalagmites below Y=0
[MC-214973] Powder snow bucket in a dispenser at y = 319 facing upwards or at y = -64 facing downwards is replaced with empty bucket, despite no powder snow being placed
[MC-214885] Beacon beam only render 256 blocks from source
[MC-214844] Bedrock can be exposed to the air at the very bottom of the new caves
[MC-214814] Strongholds generate floating and without walls, floors, or ceilings when inside caves
[MC-214082] Crash after placing soul sand or magma under 2032 tall water
[MC-211224] Seagrass can occasionally replace parts of a swamp hut
[MC-208618] Clicking on a bed immediately skips the night if gamerule playersSleepingPercentage is set to 0
[MC-208613] Amount of players who need to sleep to skip the night is calculated incorrectly
[MC-147589] Vines no longer randomly generate in jungles

The new 1.17 snapshots are starting to get really amazing. Looking forward to updating the Vanilla server when it becomes stable to run.

https://www.youtube.com/watch?v=9X_poh0E5qg

New Minecraft snapshot version is: 21w08a.

CHANGES IN 21W08A

• Tweaked cave sizes further
• Canyon and cave carvers now apply below y=0
• Cracks can now be found carved into the ground
• Grimstone has been changed into Deepslate
• Added Deepslate ores
• The distribution of ores has been further tweaked
• Andesite no longer generates under y=0
• Tuff now sometimes generates under y=0
• The Tuff layer of amethyst geodes has been replaced with now a new type of stone called Smooth Basalt
• Smooth Basalt is now obtained from smelting Basalt
• Another round of tweaking has been done to the new textures of ores and Blackstone
• Emerald and Lapis Lazuli ore textures have had some touch-ups
• Mineshafts now once again generate in the open air in caves
• Particles now appear in the air around spore blossoms
• Slime Blocks and Honey Blocks have been moved to the Redstone tab of the creative inventory

DEEPSLATE

• Grimstone is now called Deepslate
• Deepslate now has a top texture, and a new block called Cobbled Deepslate drops from Deepslate
• The cobbled variant is the same but without the top texture, and is used to craft all Deepslate variants instead
• Deepslate now has a unique set of sounds! Very crunchy indeed

DEEPSLATE ORES

• Added Deepslate versions of Iron, Gold, Lapis, Redstone, and Diamond ores that generate wherever those ores replace Deepslate
• Twice as tough to mine as normal ores

ORE DISTRIBUTION TWEAKS
Ore distribution in snapshot 21w08a. Click here for a link to the image in full resolution.

Fixed issues:
[MC-214843] Old style caves don't generate past Y=0
[MC-214782] Geodes can generate floating in caves
[MC-213926] Rooted dirt footstep sounds are considerably quieter than normal dirt footstep sounds

New Minecraft snapshot version is: 21w08b.

Fixed issues:
[MC-216744] Iron ore doesn't generate (only iron ore in deepslate is generated)
[MC-216101] Redstone ore generates with a flat distribution below y=12

New Minecraft snapshot version is: 21w10a.

NEW FEATURES IN 21W10A

• Added Lush Caves underground biome!
• Added Cracked Deepslate Bricks and Cracked Deepslate Tiles
• There is now an Infested variant of Deepslate found in the underground
• While they will not generate in the world by default, Deepslate versions of copper, emerald and coal ores have been added for use by creators of maps and data packs

LUSH CAVES BIOME
The Lush Caves underground biome now exists for use in single-biome worlds. It does not yet generate in other world types.

• Moss covers the floors and ceilings
• Spore Blossoms grow from the ceiling and drip particles
• Contains clay pools with Dripleaf Plants grow out of them
• Contains Azalea Bushes and Flowering Azalea Bushes
• The Azalea Tree loves to have its roots in lush caves, so if you find an Azalea Tree (either overground or in a cave) you know there is a Lush Cave beneath you
• Cave Vines with Glow Berries grow from the ceiling and light up the caves

CHANGES IN 21W10A

• Cobbled Deepslate can now be smelted into Deepslate
• Deepslate can now be placed along any axis
• Lightning rods can now be waterlogged
• Fossils in the deepest part of the underground generate with Deepslate Diamond Ore instead of Coal Ore
• The textures of Deepslate and some of the ores have been updated

Click here for a full resolution image of changes to ore textures in snapshot 21w10a.

ORE DISTRIBUTION
Overworld ore generation has been tweaked.

• More emeralds in mountains
• More lapis
• Less copper, gold, and Redstone
• Smaller diamond blobs, but slightly more frequent. Less diamond ore overall though
• Less iron, and it generates lower down
• Reduced air exposure for coal

Click here for a full resolution image of changes to ore distribution changes in snapshot 21w10a.

TECHNICAL CHANGES IN 21W10A

• The game now runs using OpenGL 3.2 core profile
• The maximum size that slimes can be summoned with is now 128
• The give command can only give up to 100 stacks of items at a time (e.g. 6400 stone or 100 iron swords)

OPENGL
Rendering is now using OpenGL 3.2 core profile. All fixed function rendering has been replaced with shader based rendering.

SHADERS
Shaders are now included for all supported render states. Any shader except for the blit shader can also be replaced in resource packs. For now replacing these shaders is not officially supported and the way it works may change in the future.
The current rendering engine uses a system similar to the post processing shader pipeline. There are some differences between both system that cater to the slightly different requirements.

Fixed issues:
[MC-29318] Client misses inventory updates while player is manipulating items - causes invisible items
[MC-84121] Shape of glow effect is based on mob’s base layer
[MC-87019] Only visible slots are updated clientside when you are inside an inventory
[MC-154094] Lectern running /clear turns items into ghost items
[MC-175964] Setblock command run by book in lectern to clear inventory run in command block causes ghost items
[MC-201316] The /give command can create so many items that the game will freeze
[MC-207818] Placing a sign from the offhand closes the sign UI immediately
[MC-208301] /clear does not properly affect the item on the mouse pointer after crafting it
[MC-210408] /spawnpoint allows players to set their spawnpoint to out-of-bounds coordinates, which crashes the game when trying to respawn
[MC-211666] Guardians attack invisible axolotls
[MC-212127] Normal ink sac and glow ink sac are not grouped in the creative inventory
[MC-212144] Subtitles refer to Glow Item Frame as “Item Frame”
[MC-212168] Ctrl + Pick Block doesn’t copy block state “lit”
[MC-212236] Cannot visually critical-hit a glow squid (No sound/particles)
[MC-212314] Glow squid remains dark even if there is a light source block next to it
[MC-212325] Glow Squid entity data (potion effects, custom name, …) does not get saved
[MC-214629] FOV decreases when underwater regardless of FOV Effects accessibility setting
[MC-214781] Lava does not generate at the very bottom of noise caves
[MC-214784] Fossils can generate floating in caves
[MC-214836] Water caves cause land to be excessively flooded
[MC-214844] Bedrock can be exposed to the air at the very bottom of the new caves
[MC-214970] Phantoms continously make too much flapping sounds
[MC-215194] Structure blocks do not work below y=0
[MC-215838] There is currently no way to craft deepslate tiles and deepslate bricks
[MC-215850] Deepslate Tile Wall comes before Deepslate Brick Wall but Deepslate Bricks come before Deepslate Tiles in creative inventory
[MC-215939] Emerald ore spawns in lower frequencies than it should above y=100
[MC-216136] Polished deepslate slab isn’t grouped with the other deepslate slabs in creative inventory
[MC-216363] Crash upon replacing soul sand or magma with the other under a tall bubble column using /setblock
[MC-216735] Stone Lapis Ore generating in Deepslate
[MC-216736] Lava lakes generate exposed in caves
[MC-216765] Coal ore can generate below Y=0 when attached to a fossil
[MC-216817] Inconsistency: Cobbled deepslate cannot be smelted back into deepslate
[MC-218139] Spectator vision bug

New Minecraft snapshot version is: 21w11a.

NEW FEATURES IN 21W11A

• Lightning rods can now, for the very first time ever, be waterlogged
• New functionality for applying and removing wax from Copper
• Bonemealing rooted dirt now grows hanging roots underneath

WAXING COPPER AND OXIDIZATION

• Right-click with Honeycomb on Copper Blocks to wax them
• Use honeycomb in a dispenser to wax Copper Blocks
• Axes can scrape off wax and oxidation of Copper Blocks
• Lightning strike hitting Copper will clean its oxidation

CHANGES IN 21W11A

• Waxed Copper Blocks can be crafted into 4 Copper Ingots
• Tweaked the cave sizes
• Slightly increased the frequency of Diamond Ore blobs
• Hanging roots block now renders randomly offset
• Breaking a Big Dripleaf stem now drops a Big Dripleaf Block
• Moss Blocks can be crafted with cobblestone or stone bricks to make the mossy versions of those blocks
• The facing direction of Small Dripleaf Blocks is now determined by which direction the player is facing when placing it
• Fully-grown Amethyst Clusters now drop 4 Amethyst Shards (or more with Fortune) when mined with a pickaxe, and drop 2 Amethyst Shards when broken by hand, piston, or other means

TECHNICAL CHANGES IN 21W11A

• Added F3+L shortcut to generate and persist performance metrics from in-game

IN-GAME CLIENT METRICS REPORTING
Pressing F3+L while in the game will start a recording for 10 seconds capturing metrics such as tick durations, used heap sizes, and other more detailed stats. These will be saved to a zip file in debug/profiling/<yyyy-MM-dd_HH.mm.ss>.zip and could be used for performance regression analysis if included in bug reports.
The exact metrics, output format, and names are susceptible to change between versions, and our plan is to continue iterating on which metrics to capture.

FIXED BUGS IN 21W11A
[MC-1483] Snow covered grass/podzol/mycelium block side texture does not match original block
[MC-12363] Lava / water / powder snow bucket desync when using it while rapidly turning
[MC-70850] False negatives during occlusion culling
[MC-71530] Spectators can’t see through lava
[MC-145501] Librarian and zombie librarian torso top texture is incorrect
[MC-150054] Spectral arrow texture on item and entity aren’t consistent
[MC-150784] Brewing Stand bottle outline incorrect
[MC-154006] Overworld wood signs use the outdated wood texture on all sides
[MC-160195] Jungle door inventory texture is outdated
[MC-160388] Painting back texture has not been updated with the texture update
[MC-195806] Smoker’s top and bottom textures have inconsistently colored pixels
[MC-197561] Carved pumpkins and jack o’lanterns create swastikas
[MC-197883] Jigsaw Structures causing DataFixer spam
[MC-198805] Floating pixel in the tailfin of a guardian/elder guardian
[MC-202760] Area effect cloud does not enforce a maximum radius
[MC-203554] block.amethyst_block.chime has no subtitle
[MC-203561] Amethyst crystal cluster drops items when block is moved directly by a piston without actually breaking the block
[MC-203623] Inconsistency: Breaking amethyst crystals with hands doesn’t drop the item, but breaking the block they are placed on drops them
[MC-203676] Tinted Glass suffocates entities inside of it
[MC-203753] Spyglass use statistic never increases
[MC-203918] Mobs can spawn on tinted glass
[MC-204016] When filling a lava cauldron with lava, the lava is placed on the ground, not in the cauldron. This also affects powder snow.
[MC-204862] Tinted glass is not included in the impermeable tag
[MC-205913] Lightning rod can spawn skeleton horses with skeletons
[MC-206787] World Border is rendered upside down
[MC-207557] Frozen hearts in hardcore mode look identical to frozen hearts in survival mode
[MC-211513] Trident returning to owner not in the same world can cause permanent player kick
[MC-212123] Player lighting is inconsistent in the inventory and appears darker on the front
[MC-212226] Bone Meal can still be used on a Glow Lichen when it is unable to grow
[MC-212410] Cannot compost glow lichen
[MC-213743] Spectators can’t see through powder snow
[MC-213764] Removing the block supporting a spore blossom allows the spore blossom to float
[MC-213765] Cave vine blocks are inconsistent in ID from other similar blocks
[MC-213768] Removing the support block for hanging roots allows it to float
[MC-213778] Cave vines cannot be climbed
[MC-213782] Cave vines do not slow you down like other vines
[MC-213798] Cave vines head and body emit different light levels
[MC-213886] Bone meal cannot be used on dripleaf stems
[MC-213911] Cave vines body and cave vines head share the same name
[MC-213980] Moss appropriate tool is axe rather than hoe
[MC-214568] Setting a lectern on fire causes z-fighting
[MC-215036] Snow layers in “Snowy Kingdom” superflat preset generate 64 blocks above the ground
[MC-215384] Azaleas cannot be used as a fuel
[MC-216134] Gilded blackstone texture does not match the new side texture of blackstone
[MC-216184] Player takes no fall damage on blocks above y=316
[MC-216227] Sugar cane item texture is no longer accurate from 13w36a forward
[MC-216737] When replacing tuff, ores still generate with a “stone” background below y=0
[MC-216945] Teams become dysfunctional when any entity leaves the team
[MC-216965] Flat “slices” of terrain generating in cracks
[MC-217303] Potential optimization target in DepthBasedReplacingBaseStoneSource
[MC-217546] stat.fallOneCm is not updated when falling onto a block above y=316
[MC-217802] Some blocks generate at wrong Y height in a superflat world
[MC-218587] Lightning rod still can’t be waterlogged
[MC-218594] Debug chunk borders don’t render properly
[MC-218596] Debug pie is blacked out
[MC-218597] Water has no fog anymore
[MC-218603] Screen turns dark grey when switching dimension
[MC-218604] Hanging roots can generate hanging on other hanging roots, making them float
[MC-218609] Mipmapping causes some block faces to become too dark
[MC-218610] Banners are unimpacted by light levels
[MC-218626] Cannot enchant items
[MC-218635] With fast graphics, the freezing overlay renders black, and covers the whole screen black in first person
[MC-218640] Broken spyglass overlay on fast graphics
[MC-218641] Red vignette shown when outside the world border is too intense
[MC-218645] The carved pumpkin overlay turns the screen completely black when using fast graphics
[MC-218652] The green nausea overlay no longer renders
[MC-218653] Glowing effect no longer changes to team color
[MC-218655] Floating water generates excessively in lush caves
[MC-218660] The nether portal overlay no longer renders, whilst using fast graphics
[MC-218695] Shulkers do not flash red when hurt or killed
[MC-218712] Debug pie has purple box when moving an enchanted item
[MC-218713] Right clicking to open alternate recipes does not show the recipes
[MC-218729] Noise cave entrances cause unnatural, smooth edges in terrain
[MC-218734] Caves generate with very blocky areas
[MC-218748] At sunset, a blue line appears in the northern and southern skies
[MC-218753] Ambient occlusion of the player seen in the survival inventory has changed
[MC-218765] Glowing effect no longer renders around translucent pixels
[MC-218793] Two white lines appear on the Mojang loading screen
[MC-218817] Cave Vines can generate without supporting blocks
[MC-218825] M1 ARM Macs crash when using Fabulous Graphics mode as was the case in older versions, but no lack of support warning is shown
[MC-218830] World border is white
[MC-218834] You can see block hitboxes very clearly whilst in powder snow/lava
[MC-218845] Mojang logo screen flashes blue before changing to red
[MC-218852] World border is occasionally shown as a solid color upon being loaded
[MC-218877] The red flash when a mob is hurt/killed appears to be slightly dimmed
[MC-218881] When selecting text in the end, the sky gets highlighted
[MC-218911] The background of hover-event text becomes blue when text is selected in an anvil or chat
[MC-218945] Spyglass has a gradient effect while freezing
[MC-218979] Cave ceilings and floors sometimes too flat or blocky
[MC-218988] Fire is rendered dark in the player/horse/llama UI
[MC-218990] Transparency buffers start with blue background instead of empty background
[MC-219002] The wither’s wither armor has a blue aura around it
[MC-219006] The background opacity of subtitles and chat, are affected by a potion effect UI fading out
[MC-219014] Charged creeper layer makes clouds and entities invisible
[MC-219036] World border is shown as a solid color when picking up items or experience orbs
[MC-219039] World border does not render when below the world
[MC-219049] Reloading resource packs no longer shows the progress bar while the transparent background is shown
[MC-219105] Entity hitboxes can be seen whilst inside of powder snow/lava
[MC-219108] Chat scroll bar is offset
[MC-219111] Social interactions scroll bar appears broken
[MC-219126] Xray with spyglass
[MC-219155] Cast fishing line is disconnected from the rod
[MC-219180] Slime blocks, honey blocks, stained glass, and ice are fully lit when moved by pistons
[MC-219208] Xray using enchanted items
[MC-219212] Entity shadows can be seen whilst inside of powder snow/lava
[MC-219224] The background opacity of command syntax help is affected when highlighting text
[MC-219278] Being inside of a block no longer shows the block texture
[MC-219281] Dying ender dragon is rendered too bright
[MC-219392] Lead/fishing line is no longer affected by the fog from powder snow/lava
[MC-219597] End portal and end gateway textures expand as the player travels further from the block

New Minecraft snapshot version is: 21w13a.

NEW FEATURES IN 21W13A

• Added the goat!
• Added an accessibility option

GOAT

• Goats spawn in Mountains
• Goats can scale the sides of mountains with their incredible jumps!
• Goats can be tempted and bred using Wheat
• Goats are another source of milk!

ACCESSIBILITY

• Added an alternative solid black background color for the Mojang Studios loading screen, toggleable with the “Monochrome Logo” accessibility option

Fixed issues:
[MC-221146] Water fog still very subtle making water appear too clear in the distance
[MC-220339] Beacon beam is not affected by the fog from powder snow/lava
[MC-220269] Shader texture coordinate wrapping mode causes screen effects like glowing to wrap where they shouldn't
[MC-220174] With graphics set to Fabulous!, blocks such as honey, slime and stained glass appear lit up in third person mode
[MC-220157] String is not affected by light levels
[MC-220070] Lightning is not affected by the fog from powder snow/lava
[MC-220069] Wither/creeper armor is no longer affected by the fog from powder snow/lava
[MC-220068] Experience orbs are no longer affected by the fog from powder snow/lava
[MC-219974] Big Dripleaf takes about a second to be mined
[MC-219973] Hanging Roots takes about a second to be mined
[MC-219937] Parity issue: Clouds are at y=192
[MC-219933] Shulker heads do not flash red when taking damage / when killed
[MC-219920] Amethyst Blocks can no longer be gained by mining them
[MC-219906] Minecraft crashes when spectating an entity submerged in water
[MC-219868] Opening a UI darkens the background less than it used to
[MC-219850] There is no sound or subtitle for applying/removing/scraping wax or oxidation
[MC-219740] Spyglass overlay broken while in water with fast graphics
[MC-219635] There is no sound when defrosting from fire/lava (vanilla parity)
[MC-219240] Inconsistency: cobbled deepslate does not take longer to mine than deepslate
[MC-219203] Mineshaft support legs can generate in lava
[MC-219103] The eyes of some entities can be seen through powder snow/lava
[MC-219054] Can type text into anvil text field without putting an item in it, preventing you from closing the UI with E
[MC-218888] Shift Clicking items into inventory prevents the relevant advancement from triggering
[MC-217749] Small Dripleaf can't be placed on Rooted Dirt while waterlogged
[MC-216820] Cobbled Deepslate Slab uses the stone sounds instead of the deepslate sounds
[MC-214965] Maximum building height is 319, but warning message says 320
[MC-214901] Rain passes through moss blocks
[MC-214879] Selecting nothing and pressing Ctrl+C clears clipboard
[MC-214858] Powered big dripleaf play tilting sounds when blocks are changed nearby
[MC-214818] Waterlogged pointed stalagmites don't drop when their support block is broken
[MC-214698] Azalea top texture is mirrored incorrectly
[MC-214696] Small dripleaf texture mirrored incorrectly from underneath
[MC-214695] Big dripleaf texture mirrored incorrectly from underneath
[MC-214694] Tripwire which is part of a tripwire hook is not mirrored correctly from behind
[MC-214693] Tripwire texture is not mirrored correctly from behind
[MC-214639] Rooted dirt is not randomly rotated
[MC-214589] End gateway exit portals can be set to high coordinates, kicking the player
[MC-214586] Rooted Dirt has no assigned tool
[MC-214374] Redstone doesn't connect vertically on moss blocks
[MC-214181] Rooted dirt cannot be picked up by endermen
[MC-214135] Converted moss blocks do not update redstone
[MC-214097] Cake cannot be placed on top of a moss block
[MC-214073] The azalea's side textures are partially cut off
[MC-214049] Mining rooted dirt is slightly faster than mining other dirt blocks
[MC-213958] Azalea bushes connect to walls and fences
[MC-213907] Skeletons don't have a shaking animation while converting to strays
[MC-213899] Big Dripleaf can be rotated incorrectly by breaking and replacing it
[MC-213878] Using bone meal on a small dripleaf shows breaking particles
[MC-213877] Cannot turn Rooted Dirt into a Dirt Path
[MC-213860] Farmland/dirt path don't convert to dirt when moss is placed above
[MC-213841] Signs, banners, paintings & item frames cannot be placed on moss
[MC-213837] Can't pick block big dripleaf stem
[MC-213815] Grass, ferns, flowers, bushes, saplings and bamboo cannot be placed on top of rooted dirt
[MC-213789] Water behaves as if moss blocks were air
[MC-213777] Azalea and flowering azalea z-fight when placed next to blocks
[MC-213772] Certain faces of azalea are not culled by other blocks
[MC-213771] Rooted dirt is in decorations tab
[MC-213769] Rooted dirt is far from other dirt variants in the Creative inventory
[MC-213552] Shulker hitbox does not immediately rotate after the shulker visually rotates
[MC-212736] Some world border faces are rendered mirrored, resulting in incorrect corners
[MC-212305] Back face of glow lichen is not correctly mirrored from behind
[MC-212221] Glow item frames are rendered dark when a light source is nearby
[MC-209371] Can't cut stacks in half in furnace output
[MC-208745] Explorer maps & filled maps turn blank after entering the nether or end
[MC-208703] Axolotls don't give regeneration or remove mining fatigue
[MC-208695] Semi-transparent pixels on axolotl textures
[MC-208647] Axolotls don't attack elder guardians
[MC-208594] Axolotls aren't required for the "Two By Two" advancement
[MC-208588] Axolotls change color when released from bucket / axolotl entity data isn't stored in the bucket item
[MC-208075] Copper slabs and stairs are not included in the #minecraft:slabs and #minecraft:stairs tags
[MC-205918] Experience orb stacks that were used in the mending process lose their experience amount, even if the stack is still larger than one
[MC-205914] Placing turtle egg/sea pickle onto turtle egg/sea pickle while sneaking doesn’t place it next to it, although placing candle onto candle does
[MC-205885] Endermen holding water, lava or powder snow cauldrons don't drop cauldrons
[MC-205613] Skeletons in powder snow spin when aiming at the player
[MC-205302] Using /setblock to place a structure block defaults to save mode, unlike placing one by hand
[MC-205169] Mobs don't path find across powder snow blocks when not wandering
[MC-205158] Powder snow inside textures are not correctly mirrored
[MC-205143] The particles produced when extinguishing a campfire are misplaced
[MC-205131] Landing on powder snow while wearing leather boots inflicts fall damage on Java, but not on Bedrock
[MC-205106] Mobs that get damaged by powder snow can spawn inside powder snow
[MC-205083] Mobs wearing leather boots spin around when walking on powder snow
[MC-205060] Powder snow does not cause underlying grass, mycelium or podzol to appear snowy
[MC-204430] Cauldrons filled with water, lava or powder snow cannot be used as a workstation for villagers
[MC-204133] Candle extinguishing particle appears offset from the candle
[MC-203847] Waterlogged candles can be lit
[MC-203838] Aiming a spyglass with a loaded crossbow in offhand creates weird third person effect
[MC-203617] Can't "Pick Block" cauldrons with liquid or powdered snow inside
[MC-203605] Lightning rod bottom texture is mapped incorrectly
[MC-203553] Water bottle doesn't extinguish candles
[MC-201753] Sea pickle green top sections do not render correctly from behind
[MC-201751] Chain section on lanterns is incorrectly mirrored from behind
[MC-201748] Chain model planes are incorrectly mirrored on the rear
[MC-199242] Texture planes of crop models appear incorrectly mirrored from behind
[MC-199239] Vines appear incorrectly mirrored when viewed from behind
[MC-199237] Back of ladder is incorrectly mirrored
[MC-199065] Zombies that die while on fire do not drop baked potatoes
[MC-197073] Turtles laying eggs on red sand produce normal sand particles
[MC-195640] Suspicious stew inedible with full hunger
[MC-194183] Some experience points do not go towards Mending repair, even if the Mending gear is not fully repaired
[MC-190774] Stonecutter saw spins both ways simultaneously
[MC-187544] 'Cover Me With Diamonds' advancement improperly capitalized
[MC-174701] Leash knot sound effect plays when loading singleplayer world
[MC-167853] Observer doesn't detect when a grass block changes to dirt if a tree grows on top
[MC-136776] Some NBT tags are not kept when fish or axolotl mobs are caught in water buckets
[MC-124667] Air can be used in custom recipes, causing a crash
[MC-123587] Kicked from the game when reaching y levels over 30,000,000
[MC-108636] There are a number of unused texture files
[MC-102269] Polar bears drop raw fish instead of cooked fish when killed with fire or lava
[MC-70738] Killing guardian with lava does not give cooked fish
[MC-3366] End portal appears transparent from below

New Minecraft snapshot version is: 21w14a.

NEW FEATURES IN 21W14A

• Added Raw Copper, Raw Iron, and Raw Gold items
• Tuff blobs can now be found between heights 0 and 16

SMELTABLE ORE DROPS

• Ores that are smeltable now drop raw item forms of the ore instead of the ore block and these can be smelted just like before
• This is to prevent cluttering the inventory and have consistency with Fortune on all ores
• Ore blocks from old worlds and silk-touched ore blocks will continue to be smeltable

CHANGES IN 21W14A

• Fully oxidized Copper can now be waxed

Fixed issues:
[MC-221673] Ocean monuments are completely empty
[MC-221586] Excessive pillager spawning in pillager outposts
[MC-221553] The end dimension generates differently than it did previously
[MC-220652] IndexOutOfBound exception hard crash when loading a simple custom dimension datapack
[MC-219849] Fishing doesn't animate or render the rod, line or bobber anymore
[MC-217702] Game crashes (ArrayIndexOutOfBoundsException) during world feature placement / decoration
[MC-216697] Having 'min_y' set to lower than -64 causes either a crash or the world not to behave correctly if the height limit wasn't modified
[MC-215120] World-gen datapacks can cause crashes when first generating world
[MC-214287] Crash upon entering a nether portal when logical_height is set to 0 and min_y is set to 80 or greater
[MC-213665] Crash upon attempting to generate a world with a height of 0 blocks
[MC-210155] Command block output no longer is displayed immediately after running a command
[MC-207173] Entering only colons into multiplayer Direct Connection & pressing enter crashes the game
[MC-203854] Fishing rod texture always looks like it has been cast when in the player's hand

New Minecraft snapshot version is: 21w15a.

CAVES & CLIFFS WORLD GENERATION
The riskier and technically more complex world generation changes for the Caves & Cliffs update will be shipped in a later update and have been switched off in this snapshot. This means:

• World height has been switched back to the 1.16 levels
• Noise caves and aquifers have been switched off
• Cave and ravine carvers have been returned to their old settings
• Crack carvers have been switched off
• Ore distribution has been returned to the 1.16 setup
• Copper now generates between the bottom of the world and height 192, being most common around height 96
• Tuff now generates in blobs between heights 0 and 16
• Worlds created in snapshot 21w05b or any earlier version can now once again be opened
• Worlds created in any version between snapshot 21w06a and 21w14a can no longer be opened

THE CAVES & CLIFFS PROTOTYPE DATA PACK
You can still try out the world generation for the later update using a datapack which activates the changes as an experimental custom world:

• Download the data pack
• Launch the game, go to the “Create New World” screen, and click the “Data Packs” button
• Drag the downloaded zip file onto the Minecraft window
• The game will ask you if you want to add the data pack – click “Yes”
• Click the play arrow on the data pack that just appeared in the list – this will move it to the list on the right-hand side of the screen
• Click the “Done” button and continue creating your world as normal

Keep in mind that the world you create with the data pack will be flagged as experimental by the game, and such worlds are not guaranteed to work in future versions. Also, please note that you can’t add data packs that change the world generation to existing worlds, so you must create a new world to access the experimental features.

NEW FEATURES IN 21W15A

• Goats will ram anything that moves… and also armor stands

CHANGES IN 21W15A

• A crinkly, crunchy sound now plays when Bone Meal is used
• Reordered some blocks in the Building Blocks Tab in Creative Menu
• Goats will avoid walking on Powder Snow
• Creepers know won't dare mess with Goats
• The main menu background has been updated
• Tweaked the textures of raw ore items
• Just like other ore materials, you can craft a compact version with raw ore items in order to save inventory space

Click here for a full resolution image of the new raw ore textures in snapshot 21w15a.

BUILDING BLOCKS TAB

• All ores have been reordered to be in the same location in the creative inventory
• Compact forms of raw and refined underground materials have been reordered

TECHNICAL CHANGES IN 21W15A

• Added the Marker entity
• Added /debug function
• selector and nbt chat components can now configure separators between elements
• Servers can now customize a message to display when prompting players about custom resource packs

MARKERS
Markers are a new type of entity meant for custom use cases like map making and data packs.

• Only exist on the server side, are never sent to clients
• Do not do any updates of their own
• Have a data compound field that can contain any data

/DEBUG FUNCTION
New debug subcommand executes command with same syntax as function

• Every executed command, message (even if it would be normally invisible), result or error is stored to file
• Cannot be run from inside functions

CHAT COMPONENT SEPARATORS
[LIST][*]Components that print lists of names, like selector or nbt can now override separator (", " by default) with separator element[*]Examples:

• {"selector": "@e[type=chicken]", "separator": "|"}
• {"nbt": "CustomName", "entity": "@e[type=chicken]", "interpret": true, "separator": {"text": "*", "color": "red"}}

CUSTOM SERVER RESOURCE PACKS
When require-resource-pack is used in server.properties, there’s now an option for servers to add a custom message.

• A dedicated server can configure additional message to be shown on resource pack prompt (resource-pack-prompt in server.properties, expects chat component syntax, can contain multiple lines)

Fixed issues:
[MC-222522] Nether Gold Ore is no longer smeltable
[MC-222266] Goats don't attack
[MC-222104] Beacon beam fog is incorrectly computed
[MC-221798] Blindness doesn't render correctly
[MC-221718] Lava fog repeatedly fails to render each block at certain y-levels
[MC-221501] Water splash potions don't give the axolotl 1.5 minutes of moisture
[MC-219972] Deepslate gold ore has an inconsistent pixel
[MC-218944] Copper ore and deepslate copper ore have inconsistent textures
[MC-218749] Deepslate coal ore doesn't drop experience
[MC-218705] Deepslate emerald ore is separated from other deepslate ores in the creative inventory
[MC-218698] Infested deepslate makes the old "stone" sounds
[MC-218588] Cracked deepslate bricks & tiles are in the incorrect position in the creative inventory
[MC-216588] Feature placement - java.lang.IllegalArgumentException: bound must be positive
[MC-215844] Stone still generates around lava pools at low levels
[MC-215836] Deepslate uses the same color as stone on maps
[MC-212273] Glow Lichen doesn't render when being held by an Enderman
[MC-212145] Summoning Glow Lichen using /setblock doesn't place any lichen but creates light until the block is updated
[MC-203855] A geode configured_feature causes a crash when use_alternate_layer0_chance is used with no entries in inner_placements

New Minecraft snapshot version is: 21w16a.

NEW FEATURES IN 21W16A

• Azalea and Flowering Azalea can now be bonemealed to get an Azalea Trees
• Added dripstone growth

DRIPSTONE GROWTH

• If a stalactite is hanging from a dripstone block with a water source above, it will slowly grow both the stalactite from above and a stalagmite from below
• Growth speed is random but very slow, a single growth step can take several minecraft days
• A stalactite will only grow up to 7 blocks long
• A stalactite will only cause stalagmite growth if the floor or stalagmite below is within 10 blocks
• If the stalactite tip is inside water it won’t drip, and therefore won’t trigger any growth
• If the stalagmite tip is inside water it won’t receive drops, and therefore won’t be grown by a dripping stalactite. Same thing if there is any fluid between the two tips
• A stalagmite or stalactite will never grow into a fluid

CHANGES IN 21W16A

• Tweaked the texture of raw ores and raw ore blocks

Click here for a full resolution image of the new raw ore textures in snapshot 21w16a.

CHANGES TO THE CAVES & CLIFFS PREVIEW
Download the updated datapack here.

• Aquifers below height 0 will sometimes be lava aquifers instead of water aquifers
• Ore veins can now spawn underground

Click here for a full resolution image of a lava aquifer in snapshot 21w16a.

ORE VEINS

• Ore veins are large, rare, snake-like underground ore formations
• Copper veins form above height 0 and are mixed with granite
• Iron veins form below height 0 and are mixed with tuff

TECHNICAL CHANGES IN 21W16A

• Users who previously permanently declined server resource packs will now still be shown the pack prompt if the pack is mandatory (instead of being immediately disconnected)
• The statistic for play time has been renamed to play_time
• There is now a statistic for “Time with World Open” (total_world_time) that also includes the time when the game was paused

Fixed issues:
[MC-223757] minecraft.used:minecraft.lava_bucket doesn't increase when filling a cauldron with a lava bucket
[MC-223756] minecraft.used:minecraft.powder_snow_bucket doesn't increase when filling a cauldron with a powder snow bucket
[MC-223639] minecraft.used:minecraft.shears doesn't increase when collecting honeycombs from a beehive or bee nest
[MC-223638] minecraft.used:minecraft.shears doesn't increase when carving a pumpkin
[MC-223563] minecraft.used:minecraft.glass_bottle doesn't increase when collecting honey from a beehive or bee nest
[MC-223558] minecraft.used:minecraft.glass_bottle doesn't increase when taking water from a cauldron using a glass bottle
[MC-223557] minecraft.used:minecraft.bucket doesn't increase when taking powder snow, lava, or water from a cauldron using a bucket
[MC-223555] minecraft.used:minecraft.COLOR_dye doesn't increase when applying a dye to a sign
[MC-223554] minecraft.used:minecraft.ink_sac doesn't increase when applying an ink sac to a sign
[MC-223553] minecraft.used:minecraft.glow_ink_sac doesn't increase when applying a glow ink sac to a sign
[MC-223260] Emerald ore does not generate as intended
[MC-222778] minecraft.used:minecraft.candle doesn't increase when placing a candle on a cake
[MC-222684] You cannot grow azalea trees by bonemealing Azalea plants
[MC-222517] A large amount of slime or honey blocks will crash the game
[MC-222004] Grass block isn't apart of the #dirt block tag
[MC-221655] Glow Squids and Axolotls Spawn in Monuments
[MC-221652] Teleport command to player does not work as in previous versions
[MC-221628] Entities don’t stop glowing after losing the glowing effect
[MC-221560] Copper/Coal Ore in Deepslate Patches aren't Deepslate Ores
[MC-220887] Shader includes fail to compile correctly when missing newline at end of file
[MC-220641] Loyalty tridents disappear when your inventory is full
[MC-220307] TrueType Font glyphs render incorrectly
[MC-220024] Shader compilation slows or fails the more asterisks are in a multiline comment
[MC-219903] Silverfish infesting deepslate cause it to rotate
[MC-219851] Applying bone meal to a waterlogged big dripleaf stem creates more waterlogged big dripleaf stems
[MC-219211] Two mysterious white pixels can be seen in the upper left corner of the recipe book icon
[MC-219155] Cast fishing line is disconnected from the rod
[MC-218637] Inconsistency: Infested deepslate is not rotated randomly like normal deepslate
[MC-218614] Inconsistency: Infested Deepslate can't be placed along axis
[MC-218592] Azalea trees can generate inside of lakes (even completely submerged in water)
[MC-218590] Error message for commands.give.failed.toomanyitems doesn't translate item name
[MC-217411] Anvils can become damaged when only falling one block
[MC-216787] Cobwebs in mineshafts can generate as if supported by chains
[MC-215270] Moss requires air above a replaceable block to spread
[MC-214293] Mobs can spawn on top of azaleas
[MC-214129] Several dirt blocks are not part of the #minecraft:lush_plants_replaceable tag
[MC-213998] root_vines_head is unused in-game files
[MC-213927] Using bone meal on a sapling that is on a moss block consumes bone meal, but doesn't grow into a tree
[MC-212863] Glow lichen use the same color as vines on maps
[MC-212113] Glow Lichen can spawn underwater whilst not in a cave.
[MC-208598] Baby axolotls take damage when touching a solid block from below / eye height is outside of their hitbox
[MC-205236] Frozen State doesn't go away after respawn when on a server
[MC-203637] Mobs don't avoid lava cauldrons when pathfinding despite of setting themselves on fire
[MC-190128] Using a flint and steel to ingite TNT is not tracked by the in-game stats
[MC-157116] Food that is plantable counts towards using when right clicked on the ground
[MC-136681] Debug Stick use statistic increases when not allowed to use it
[MC-136560] minecraft.used:minecraft.elytra not functioning
[MC-117653] Recipes and advancements are not granted while most GUIs are open
[MC-111534] The firework rocket use statistic doesn't count rockets used for elytra boosting
[MC-55775] Statistics screen sometimes doesn't show up to date information
[MC-29522] stat.playOneMinute adds a value of 1 every tick

New Minecraft snapshot version is: 21w17a.

CHANGES IN 21W17A

• Small Dripleaves can now also be placed on Moss Blocks
• Copper Ore drops 2-3 raw Copper when mined, or more when using a tool enchanted with Fortune
• Copper Blocks are now crafted from 9 Copper Ingots
• Tweaked the texture of raw Metal blocks

Click here for a full resolution image of the new raw ore textures in snapshot 21w17a.

CHANGES TO THE CAVES & CLIFFS PREVIEW
Download the updated datapack here.

• Large Ore Veins have been tweaked
• Added noodle caves – thinner, squigglier, and more claustrophobic variant of spaghetti caves

Click here for a full resolution image of noodle caves in snapshot 21w17a.

LARGE ORE VEINS

• Ore veins are now slightly rarer and slightly smaller (but they are still large!)
• The ores in the vein are clumpier and less evenly distributed
• If you are lucky you may find a raw ore block in the vein

Fixed issues:
[MC-223792] Shrinking world border with center past x/z 29999983 crashes the game
[MC-223055] Amethyst buds and cluster have an unused blockstate
[MC-222520] Raw and Ore smelting previews aren't grouped together
[MC-222008] Empty/missing template pool error grammar mistake
[MC-221560] Copper/Coal Ore in Deepslate Patches aren't Deepslate Ores
[MC-220033] (Parity issue) Hanging Roots can't be waterlogged
[MC-219842] Recipes for mossy cobblestone and mossy stone bricks aren't grouped
[MC-219840] You cannot unlock the recipe for Mossy Stone Bricks
[MC-219155] Fishing line only starts on half distance between the fishing rod and bobber (Apple M1 only)
[MC-214865] Floating islands world type generates extreme terrain
[MC-214838] Big dripleaf stem remains after breaking a stem or leaf above it
[MC-214735] Horse disappears when dying while riding it and reloading the world while it's unloaded
[MC-214187] Void platform generates multiple times
[MC-204031] Waxed Cut Copper (any level of weathered) have two separate recipes in the recipe book
[MC-203745] Repeated teleport between dimensions causes the entity to duplicate on the client
[MC-203570] Candles aren't grouped in the recipe book
[MC-201269] Constantly teleporting player to a phantom crashes the game/kicks the player
[MC-187664] World border uses float to determine its size, making some border sizes inaccessible, and cannot be set to 30 million or beyond
[MC-170443] Banner copying recipe ignores existence of other items in crafting grid

New Minecraft snapshot version is: 21w18a.

CHANGES IN 21W18A

• Infested Blocks are no longer instantly destroyed. Instead, they have half the destroy time of their non-infested counterpart.
• Screaming goats will use their ram attack more often than other goats will

CHANGES TO THE CAVES & CLIFFS PREVIEW
Download the updated datapack.
Click here for a full resolution image of ore distribution in 21w18a.

• Reduced Copper spawning a bit, to compensate for large ore veins
• Large ore veins are slightly more rare and slightly smaller on average. But the size varies a lot so you can still find huge ones.
• Increased chance of finding raw ore blocks in ore veins
• Cave carvers generate below y 0 in Ocean biomes (they didn’t before, it was an accident)
• Increased the minimum size of noodle caves and carvers, to make them easier to traverse and less likely to break up into fragments.
• Noodle caves no longer generate above y 30, so the surface should be less riddled with holes.
• Removed Deepslate blobs above y 0
• Extended the vertical range of the smaller blobs of iron ore, to make it possible to find iron in caves near the surface.
• Slightly reduced the amount of normal-sized iron blobs, to compensate for large ore veins and the increased range of smaller blobs.

Fixed issues:
[MC-224428] Raw ore blocks can generate as floating blocks in ore veins
[MC-224401] Mob death does not show death particles
[MC-223422] When removing water from base of Small Dripleaf, the block stands without water untill a block update
[MC-223239] Ramming sound that comes from a baby goat does not change pitch
[MC-223203] Deepslate ore map colors are inconsistent with deepslate
[MC-223178] Deepslate Tile Stairs come before Deepslate Brick Stairs in the creative inventory
[MC-223150] Goats ram Marker armor stands & Invisible armor stands
[MC-223145] Piglins aren't angered when mining a Block of Raw Gold
[MC-223141] Piglins aren't attracted to a Block of Raw Gold
[MC-222458] UVs on the goat's ears aren't mirrored as they should be
[MC-222157] Eye position of the goat is too high in some cases, causing suffocation
[MC-222151] Goat head animation is weird when it rides a boat
[MC-221840] Goats can still do high jumps normally when on honey blocks
[MC-221727] Goat eye height is outside of its hitbox while airborne
[MC-221725] Legs of goats move differently
[MC-221647] Goat Babies Don't Follow Parents
[MC-216148] Some chunks occasionally don't save properly, resetting progress
[MC-215946] Game fatally crashed while exploring chunks (IllegalStateException: Accessing PalettedContainer from multiple threads)
[MC-215867] Crash: java.lang.IllegalStateException: Chunk not there when requested
[MC-214898] Extreme world generation lag
[MC-214860] Some chunks in a line are lit up constantly
[MC-214808] World occasionally fails to load correctly
[MC-214793] Some strips of chunks generate completely dark
[MC-214427] Spore Blossoms can be used to breathe underwater / cannot be waterlogged
[MC-214159] Small Dripleaf sometimes shrink into smaller (1 block tall) Big Dripleaf when using bone meal
[MC-211064] Loading in a TrueTypeFont with an out-of-bounds size crashes the game
[MC-208679] Axolotl inconsistently doesn't show its mouth in-game
[MC-208430] Minecraft crashes when loading resource pack due to "tessellating block model"
[MC-206560] Pufferfish react to Marker armor stands and Invisible armor stands
[MC-205797] Zoglins attack Marker armor stands and Invisible armor stands
[MC-204969] No "Burning" sound for items burning in lava cauldron
[MC-204707] Adventure mode players can extinguish candles
[MC-197616] Certain custom biome settings cause game to spam "Received invalid biome id: -1" in the console, causing major lag or freeze
[MC-162953] NativeImage bounds checks are incorrect
[MC-125033] Old cave and ravine generation gets cut off unnaturally on chunk borders near water
[MC-87935] When closing the inventory while holding an item with the cursor in Creative mode, the item disappears
[MC-3587] Last use of an anvil causes player to drop their item

New Minecraft snapshot version is: 21w19a.

CHANGES IN 21W19A

• The maximum length of item names in the anvil UI has been increased from 35 to 50
• Made geodes significantly rarer
• Unfinished items (Sculk Sensor, Bundles, and Candles) have been removed from the creative inventory
• Recipes for unfinished items (Bundles, Candles) have been removed

CHANGES TO THE CAVES & CLIFFS PREVIEW
Download the updated datapack.

• The pack now includes recipes related to bundles and candles

TECHNICAL CHANGES IN 21W19A

• Upgraded to Java 16
• Added mineable/axe, mineable/hoe, mineable/pickaxe and mineable/shovel block tags. Blocks with these tags can be destroyed more quickly with the matching tool.
• Added needs_stone_tool, needs_iron_tool and needs_diamond_tool block tags. If a block requires the correct tool to drop, these tags determine which tier of that tool is required.
• Changed the syntax of the /item command

JAVA 16
Minecraft now uses a more recent version of Java. If you are using a default setup the Launcher will download and install the correct version. If you are using a custom Java setup or a third-party launcher, you will need to ensure that your Java installation is version 16 or above.

ITEM COMMAND
New syntax:

• /item replace <target> with <item stack> [<count>] - same as old replaceitem
• /item replace <target> from <source> [<modifier>] - copies item for source to target(s), optionally applying modifier
• /item modify <target> <modifier> - modifies item (without copying)

For example, /item replace block ~ ~ ~ container.0 from entity @s enderchest.0 will copy first item from player’s enderchest to first slot of container player is currently standing on.


Fixed issues:
[MC-225025] Server side performance drop with dragon's breath area effect clouds
[MC-224972] Infested blocks have no effective tool
[MC-224927] Infested blocks take twice as long instead of half the time
[MC-224389] Copper Ingots are no longer grouped in the crafting table
[MC-224388] Ores and raw materials in smelting preview are off center
[MC-224325] minecraft.used:minecraft.COMPOSTABLE_ITEM doesn't increase when placing an item into a composter
[MC-224322] Powder snow can create ghost blocks in creative mode
[MC-223907] Moss block appears in the #lush_ground_replaceable.json twice
[MC-223820] Azalea & Flowering Azalea aren't part of the block or item tags for #saplings
[MC-223446] Shulkers appear in the wrong place when riding an entity
[MC-223227] Floating water caves in caves under the ocean
[MC-223171] Budding Amethyst and Copper variants are far away in the creative inventory
[MC-223132] Powder snow doesn't produce a breaking sound or subtitle, when destroyed through extinguishing a burning player, mob, or flame arrow
[MC-222882] Spyglass in Search tab of creative inventory is mixed with block types instead of tools where it belongs
[MC-222738] Leads don't work with Glow Squids
[MC-221957] Pick Block used on a level 15 light block returns a different item from the default light block
[MC-221844] Powder snow doesn’t produce particles when broken by burning mobs
[MC-221756] Snow particles do not render at all when the block light level is 7 or more
[MC-221309] Experience orbs produce particles whilst moving through powder snow
[MC-220215] Opening a shulker box while an entity is standing on top of it pushes it too high for a short amount of time
[MC-220106] Lightning hitting an entity on copper slabs on top another copper block fully cleans the bottom block first
[MC-219873] Lightning Bolt detecting lightning rod incorrectly
[MC-219445] Bonemealing big dripleaf in flowing water doesn't update the water
[MC-217626] Spore blossom is positioned rather strangely among flowers in Creative
[MC-214283] Hanging roots break sound event uses break3 twice, excluding break4
[MC-214220] Items in water streams don't fall from big dripleaves, but constantly try
[MC-214127] Despite being a type of berry plant, bees don't pollinate cave vines
[MC-213943] Flying slightly above a big dripleaf can cause it to tilt without touching it
[MC-213922] Shulkers are not spawned in the correct place
[MC-213774] Hanging roots float in your hand
[MC-212206] Shulkers generating outside the world border bug out when trying to spawn
[MC-209533] Amethyst shard is not grouped with other gemstones in the Creative inventory
[MC-208740] Withers attack axolotls that are playing dead
[MC-208663] Pufferfish don't defend themselves from axolotls
[MC-205626] The command syntax order of /item is inconsistent
[MC-204244] Sheep are rendered like white sheared sheep through tinted glass blocks
[MC-203757] Anvil character limit is too low for items with long names
[MC-203718] Lightning rod stays activated when struck by lighting at the same time as being moved by a piston
[MC-203606] "X Candle Cake" should be "Cake with X Candle"
[MC-200009] Crash when using a non-mushroom block in a huge mushroom feature's cap
[MC-136647] Leads don't work with Squids
[MC-105080] Ender Dragon is respawned if all Exit End Portal blocks are removed / legacy scanning is done for worlds with new dragon fight

Java 16 really is something to keep in mind when using custom launchers such as MultiMC. Also I need to do some server stuff probably to keep things from breaking.

*edit*
Yup, I had to install Java 16 and change the Minecraft server scripts. For each server I can now easily define which version of Java it uses so we can keep on running (really) old and new Minecraft versions alongside each other.

Fun fact. The Java VM parameters which we use to tweak various Java settings for each server have now become critical. If you pass a parameter to Java 16 which it doesn't support, it will refuse to run. So I had to remove some deprecated stuff that's still being used on the other server. I'm pretty sure versions of Java prior to version 16 just gave a warning message but would still run. Nice way to force people to clean up their scripts I guess. Nicer still would have been to provide alternatives to the given parameters or a link to documentation about them. Oh well, it's working now.

New Minecraft snapshot version is: 21w20a.

CHANGES IN 21W20A

• Actually made Geodes rarer this time
• GUI narration now includes position and usage of hovered or focused element
• Tilling Rooted Dirt with a Hoe will now convert it into Dirt, and pop out a Hanging Roots item
• Axolotls will now only play dead when in water
• Llamas no longer spit at players in peaceful mode

CHANGES TO THE CAVES & CLIFFS PREVIEW
Download the updated datapack.

TECHNICAL CHANGES IN 21W20A

• Added a new NBT tag for entities - “HasVisualFire” – which will cause any entity with this flag to visually appear on fire, even if they are not actually on fire

FIXED BUGS IN 21W20A
[MC-610] Grass / Flowers / Snow are placed incorrectly in newly created chunks
[MC-102220] Barrier Blocks are not shown when “Show Invisible Blocks” is selected in Save Structure Blocks
[MC-149777] Crash when loading world: java.util.ConcurrentModificationException when using Java 11 or above
[MC-172304] Piglins, piglin brutes, hoglins, zoglins and axolotls can attack their own teammates
[MC-189535] Catching a fish in a bucket on creative mode doesn’t give player new bucket
[MC-191338] Name color for Minecart with Command Block is incorrect
[MC-192591] Name color for Structure Void is incorrect
[MC-198200] Crash when leaving out processors in a template pool: java.lang.IllegalArgumentException: bound must be positive
[MC-203712] Amethyst Geodes cause floating water/lava to generate when intersecting water/lava caves/pools
[MC-203867] Amethyst geodes can overwrite bedrock
[MC-204393] Lava Cauldron emits redstone signal strength 1 instead of 3
[MC-204902] Dirt paths are no longer compatible with the programmer art resource pack
[MC-205104] Rideable mobs are not affected by powder snow’s freezing effect while being ridden
[MC-205120] Freezing hearts aren’t displayed properly in Programmer Art resource pack
[MC-205250] Amethyst geodes can generate in a stronghold and can potentially destroy the end portal frames
[MC-205680] minecraft:location_check predicate floating point imprecision
[MC-206107] Parrots sitting on shoulders do not freeze in powder snow
[MC-206131] Amethyst blocks are transparent / don’t conduct Redstone
[MC-206601] Potion particles are showing when looking through spyglass
[MC-206839] Pointed dripstones cause extreme durability damage to helmets
[MC-207324] Mobs and particles sometimes don’t fully render behind stained or tinted glass
[MC-207366] Trying to modify the world height of a world after it’s already been generated gives a null pointer exception
[MC-208586] Axolotls get stuck and spin constantly on top of lily pads
[MC-208589] Axolotls have a swimming animation (move their body up- and downwards) when on land
[MC-208601] Axolotls do not avoid lava when pathfinding
[MC-208617] Axolotls sometimes twitch rapidly when adjusting their rotation
[MC-208641] Axolotl movement glitch on stairs
[MC-208649] Breeding axolotl with a bucket of tropical gives back a bucket instead of a water bucket
[MC-208654] Collecting an axolotl with a water bucket in creative mode replaces the original bucket
[MC-208675] Axolotls sometimes use walking animation when in shallow water
[MC-208682] Axolotls frequently get stuck inside of waterlogged blocks
[MC-208691] Axolotls play dead even when they take damage without being attacked by an entity
[MC-208735] Axolotls attempt to pathfind towards unreachable water, then start spinning, eventually drying out and dying
[MC-209324] Pointed Dripstone can be broken with tridents in spawn protection
[MC-212125] Only one glow lichen drops when using shears on multiple in a single block space
[MC-212531] Shulkers can rotate their heads up and down
[MC-212931] Fire extinguishing sound doesn’t play when mobs are extinguished with rain/water
[MC-214041] Mob can’t properly or difficult walk on big dripleaf, when the big dripleaf is 4 blocks or more from the ground
[MC-214909] Top half of a small dripleaf can turn into a ghost block when placing it in water while the water is being removed
[MC-215665] Amethyst Geodes can overlap with dungeons
[MC-216214] netherrack_replace_blobs with water as target crashes the game
[MC-216980] Comma splices in two source strings (EN_US)
[MC-217113] Foxes spawned inside of powder snow sleeps
[MC-217608] The big dripleaf texture is not vertically centered
[MC-217742] Campfires and TNT can be lit by players using arrows shot from flame bows in spawn protection
[MC-219856] F3 + L isn’t sorted alphabetically in the debug screen
[MC-219870] The Mojang loading screen upon start up flashes black
[MC-220063] Sweet berries and glow berries sound events are named extremely differently
[MC-220128] Parity Issue: Rooted dirt won’t turn into the dirt and drop roots item after tilling with hoe in Java
[MC-220694] Name color for knowledge book is incorrect
[MC-220867] Fossils can generate through bedrock
[MC-221566] Name color for light is incorrect
[MC-221694] Strays do not spawn in powder snow
[MC-221833] Light blocks are not shown within structure block bounds with Show Invisible Blocks on
[MC-221863] Powder Snow can be broken by players on fire in spawn protection
[MC-221984] Collecting an axolotl in a bucket and then placing it resets its kill cooldown
[MC-222002] Light item displays the wrong level number
[MC-222116] Splash water bottles doesn’t extinguish candle cakes
[MC-222797] Axolotl can be bred with just tropical fish items, not just bucket ones
[MC-223322] Chorus flowers can be broken with projectiles in spawn protection
[MC-223372] You can decrease the level of a water or powder snow cauldron, through the use of an entity on fire in spawn protection
[MC-224320] minecraft.used:minecraft.potion doesn’t increase when filling a partially filled cauldron with a water bottle
[MC-224322] Powder snow can create ghost blocks in creative mode
[MC-224480] Powder snow doesn’t melt into water in cauldrons
[MC-224482] Superflat presets no longer generate with decorations
[MC-225078] Upgrading from 1.12.2 and below will cause items to lose enchantments
[MC-225253] Dying in a nether portal softlocks the player on the “You Died!” menu
[MC-225347] cave_vines_plant isn’t in #bee_growables
[MC-225352] Geodes have not been made “significantly rarer”
[MC-225360] Cannot resolve SRV records: unknown host

New Minecraft snapshot version is: 1.17-pre1.

NEW FEATURES IN 1.17 PRE-RELEASE 1

• Added new advancements

ADVANCEMENTS

• Added “Whatever Floats Your Goat!” for floating in a boat with a goat
• Added “Wax on” for applying wax to a Copper block!
• Added “Wax off” for scraping wax off a Copper block!
• Added “The Cutest Predator” for catching an axolotl in a bucket!
• Added “The Healing Power of Friendship!” for teaming up with an axolotl and winning a fight
• Added “Glow and Behold” for making a sign glow
• Added “Light as a Rabbit” for waking on powder snow with leather boots
• Added “Surge Protector!” for having a lightning strike a lightning rod near a villager without setting the area on fire
• Added “Is it a Bird?” for looking at a parrot through a spyglass
• Added “Is it a Balloon?” for looking at a ghast through a spyglass
• Added “Is it a Plane?” for looking at a dragon through a spyglass

CHANGES IN 1.17 PRE-RELEASE 1

• Candles have been added back to the creative inventory
• Recipes for crafting and dying candles are once again available
• Candles now have a different texture when lit
• Glowing text on signs now has an outer glow, making text in dark colours more visible in the dark
• Holding down the space bar now increases the scroll speed in the credits

THE CAVES & CLIFFS PREVIEW
Download the updated datapack.

TECHNICAL CHANGES IN 1.17 PRE-RELEASE 1

• Added started_riding, lightning_strike and using_item advancement triggers
• Added source condition to effects_changed trigger
• Added lightning_bolt sub-predicate
• Added passenger, stepping_on and lightning_bolt properties to entity predicate
• Added looking_at condition to player sub-predicate
• Expanded item field on item predicate to items
• Expanded block field on block predicate to blocks
• Added F3+L shortcut to generate and persist performance metrics from in-game
  
  • F3+L on single-player worlds will also include reports for the integrated server
• Removed debug report command (use perf start/stop for server performance measurement)
• perf start/stop command on dedicated servers will now generate and persist server performance metrics

ADVANCEMENTS
NEW TRIGGERS
STARTED_RIDING

• Triggered when player starts riding a vehicle or entity starts riding vehicle currently ridden by player
• Conditions:
  
  • player - either a player that started riding or one of boat passengers

LIGHTNING_STRIKE

• Triggered when lightning finishes (i.e. entity disappears)
• Triggers for any player on the server
• Conditions
  
  • player - player for which this trigger runs
  • lightning - predicate for lightning entity
  • bystander - predicate for one of the entities in a certain area around strike not hurt by it

USING_ITEM

• Triggered for every tick of using items (like crossbows, spyglass, fishing rods, etc)
• Conditions
  
  • player - players that uses item
  • item - item being used

CHANGED TRIGGERS
EFFECTS_CHANGED

• Added source triggers that matches entity that triggered the change
• Might be empty when:
  
  • there is no entity (for example, effect gained from a beacon)
  • the effect is self-applied
  • effect is removed

CHANGED PREDICATES
ITEM PREDICATE

• item field expended to items, now accepting an array of item types

BLOCK PREDICATE

• block field expended to blocks, now accepting an array of block types

ENTITY PREDICATE

• passenger - new sub-predicate for passenger directly riding this vehicle (if present, must match one or more)
• stepping_on - location predicate for block entity is currently standing on
• lightning_bolt - sub-predicate valid only for lightning bolt entity

PLAYER PREDICATE

• looking_at - entity currently viewed by player
  
  • uses the same line-of-sight rules as attacking mobs
  • actual detection radius might be changed in future

LIGHTNING BOLT

• blocks_set_on_fire - range check for of blocks set on fire by this entity
• entity_struck - predicate for entities struck by this lightning (if present, must match one or more)

PERFORMANCE METRICS REPORTING
These will be saved to a zip file in debug/profiling/<yyyy-MM-dd_HH.mm.ss-[levelname]-[version]>.zip and could be used for performance regression analysis if included in bug reports.
The exact metrics, output format, and names are susceptible to change between versions. Our plan is to continue iterating on which metrics to capture.

CLIENT F3+L SHORTCUT
Pressing F3+L while in the game will start a recording for 10 seconds capturing metrics such as tick durations, used heap sizes and other more detailed stats.
Pressing F3+L before the 10 second limit will end the recording early.
This shortcut is always available to clients, even on multi-player servers where it will record client-side performance.

DEDICATED SERVER PERF START/STOP COMMAND
perf start will start a recording for 10 seconds capturing metrics such as tick durations, used heap sizes and other more detailed stats.
perf stop before the 10-second limit will end the recording early.


Fixed issues:
[MC-226192] Crash upon attempting to create a new scoreboard objective: java.lang.NullPointerException: Cannot invoke "String.toLowerCase(java.util.Locale)" because "☃" is null
[MC-225978] Non-waxed weathered copper blocks appear twice in needs_stone_tool.json
[MC-225929] Item statistic sorting not functioning
[MC-225919] Coal Ore from fossils can generate through bedrock
[MC-225916] Non-waxed oxidized copper blocks don't require at least stone tier to be mined
[MC-225895] Floating grass can still generate above lava lakes
[MC-225853] Minecraft sometimes crashes when trying to start 21w20a for the first time
[MC-225850] Grass, tall grass, flower, double flower, fern, large fern and tree can generate on sand or gravel
[MC-225843] Snow layers can still generate floating over lakes
[MC-225773] Axolotls can make ambient noises when they're playing dead
[MC-225722] java.lang.IllegalArgumentException: bound must be positive
[MC-225404] The axe is still an appropriate tool for moss carpets
[MC-225315] Selected text on signs blinks
[MC-225193] Goats will attempt to ram entities that are outside of the world border
[MC-225129] Players do not despawn until they respawn
[MC-225010] Closing the inventory in creative mode while having an item on the cursor turns it into a ghost item
[MC-224862] Azalea and Flowering Azaleas can take bone meal despite being on clay
[MC-224861] Falling blocks disappear for a moment when landing
[MC-224778] Game crashes when there is a block with no facing block state in #wall_corals and a warm ocean tries to generate
[MC-224445] Reloading resource packs with fabulous graphics causes screen to become black, after a few times causes crash for AMD drivers
[MC-224159] Absorbtion hearts don't have the wither heart effect
[MC-223843] Mycelium inside enderman_holdable.json twice
[MC-223021] glShaderSource fails on some AMD drivers resulting in a crash on 1.17
[MC-221820] Inconsistency: Enderman is able to pick up flowering azalea, while unable to hold normal azalea bush.
[MC-221554] When searching, the goat spawn egg appears in the middle of the different boat types
[MC-219762] More performant noise blending algorithm in BlendedNoise
[MC-218972] The glowing effect outline omits parts of entities if the entity is invisible
[MC-218831] Lots of missing shaders in the game assets
[MC-218112] SynchedEntityData is using locks incorrectly
[MC-216276] Lava pools break bedrock with custom world generation
[MC-214684] Azaleas cannot be placed in flower pots
[MC-214636] Small dripleaf leafs can overlap each other and cause z-fighting
[MC-214057] Entities no longer showing flame animation when in water/lava at the same time
[MC-213799] Dripleaf isn't properly held in the player's hand
[MC-213062] A ruined portal generated in an end portal
[MC-212207] Geodes generating inside icebergs
[MC-212146] Glow lichen can generate floating inside underground structures
[MC-212142] Applying glow ink on signs doesn't render the text bright without also having applied a custom color
[MC-211601] Entities are loaded after scheduled ticks are processed causing detector rails, pressure plates, etc. to turn off
[MC-209819] Server crash when pathfinding to player that is teleporting away
[MC-208604] While the mainhand is empty and there's a loaded crossbow in the offhand, the mainhand will appear invisible
[MC-205035] Powder Snow Bucket is not grouped with Snowball or buckets in creative inventory
[MC-204649] Amethyst blocks don't make chime sounds when walked on by certain mobs
[MC-203704] Candles don't show flame animations when particles are set to "Minimal"
[MC-203661] Flowing liquids look very dark through tinted glass
[MC-203558] Lighting a candle is sometimes delayed
[MC-203131] Setting the weight in Template Pool to high values will lag world and can cause out of memory error.
[MC-202249] Angering passive mobs in new nether chunks very far away from previously generated chunks, then entering a nether portal causes server to completely freeze
[MC-198957] End Portal Frames change to Stone near Lava Pool
[MC-197942] Leaves change to stone near Lava Pool (Recurrence of MC-48340)
[MC-192889] When placing certain heads or putting them in entities' head slot the game stutters
[MC-189336] Shifting around servers in the server list crashes the game (ArrayIndexOutOfBoundsException)
[MC-163945] Intersecting structures can create corrupted block entities (spawner / chest)
[MC-148809] Structure block data length limited to 12
[MC-118757] Increasing Game State Rain Level values make the game increasingly laggier and distorts UI
[MC-117708] Credits background jitters
[MC-104897] End crystals placed on exit portals generated before 1.9 do not respawn the ender dragon
[MC-65587] Lag spike while loading player head textures/player skins
[MC-19690] Reducing maxHealth / max_health can cause fake death

New Minecraft snapshot version is: 1.17-pre2.

Fixed issues:
[MC-226782] /debug start does not work as described
[MC-226576] Unknown CPU on Debug menu.
[MC-226561] Facing away from signs with glowing text makes the text disappear or z-fight
[MC-226470] Nether Fossils generate on the nether roof above bedrock in soul sand valleys
[MC-225911] Slimes and Magma Cubes not interacting with player
[MC-225190] Tnt can be pushed with enchanted sword with knockback
[MC-223602] Glowing translucent entities often don't merge their outlines with other glowing entities
[MC-220698] The ExplosionPower of ghast fireballs is uncapped, causing a freeze / crash
[MC-213767] Flowering azalea leaves ID is unintuitive
[MC-205840] Smooth lighting behaves oddly on blocks covered with tinted glass
[MC-196298] Arrows fired into the side of bamboo or pointed dripstone never despawn
[MC-68129] Smooth lighting doesn't work properly underwater

New Minecraft snapshot version is: 1.17-pre3.

CHANGES IN 1.17 PRE-RELEASE 3

• Tweaked the textures of lit candles
• Mobs rammed by goats will no longer retaliate
• Axolotls and Glow Squids now only spawn in total darkness and where there's a natural stone block less than 5 blocks below the spawning space

Fixed issues:
[MC-227018] Changing or reloading resource packs does not reload core shaders until reloading a second time
[MC-226970] Stars are occluded by render fog
[MC-226956] Gravity blocks do not break when doEntityDrops is set to false
[MC-226874] Player's owned player_head on mobs are flashing
[MC-226660] "Double closing program" warnings upon closing the game
[MC-226514] Crash trying to start a world: Error: java.lang.NullPointerException: Cannot read field "u" because "☃" is null
[MC-226441] Lit candle texture doesn't change when on cake
[MC-225344] Cave generation seems to be broken at seemingly random chunk borders
[MC-225077] Vines can spread upward to non-full blocks
[MC-224893] Replacing Chunk Futures causes several issues
[MC-223227] Floating water caves in caves under the ocean
[MC-223147] Vines aren't rendered with /setblock
[MC-222223] Baby axolotls despawn
[MC-215946] Game fatally crashed while exploring chunks (IllegalStateException: Accessing PalettedContainer from multiple threads)
[MC-203773] Lightning rod is floating when held in third-person

New Minecraft snapshot version is: 1.17-pre4.

CHANGES IN 1.17 PRE-RELEASE 4

• Holding down control while holding down space now makes the credits scroll even faster

Fixed issues:
[MC-227107] C418 is removed from ==Composers== in credits.json
[MC-227092] Experimental Settings confirmation prompt appears when creating any world in 1.17-pre3
[MC-227058] Any hostility between animals is removed in peaceful
[MC-227003] Game crashed whilst debug profiling
[MC-226777] When a crossbow is loaded in the offhand, you cannot see it or shoot with it if an item is held in the main hand
[MC-226762] Credits Text Wrapping
[MC-226702] The usage and punctuation of "Inc." and "LLC" are inconsistent in the credits
[MC-226700] Some people are listed twice in the credits
[MC-226696] In the credits, "TEN GUN DESIGN INC" is in all capital letters for one employee
[MC-226693] The credits say "Wed Developers" instead of "Web Developers" in one place
[MC-226692] In the credits, a closing parenthesis is missing for Brian Canning
[MC-226690] In the credits, "EXPERIS" is in all capital letters for two employees
[MC-223552] Credits not alphabetically ordered

New Minecraft snapshot version is: 1.17-pre5.

Fixed issues:
[MC-227232] Player head SkullOwner tag with username string no longer works
[MC-227208] Breaking bamboo is excessively laggy since the 1.17 pre-releases
[MC-227207] Datafixer doesn't properly update certain scoreboard objectives from 1.16 to 1.17
[MC-227065] Cannot Invoke "na.b(String, int)" because "☃ is null
[MC-225707] Caves and Cliffs Datapacks Server Error

New Minecraft snapshot version is: 1.17-rc1.

Fixed issues:
[MC-227323] Custom player heads sometimes flash when placed on armor stands
Improved desync issues when exiting a boat over a high latency connection
Fixed crashes

New Minecraft snapshot version is: 1.17-rc2.

"Fixed a few critical issues"