Minecraft 1.18 Second part: Update, list of features that are added in the patch

Butcher79

30 November, 2021

Minecraft

Buy key Minecraft: Java & Bedrock Edition for PC 🔑 Windows 10

1900 rub

1619 rub

Minecraft 1.18, the second release of the update Caves & Cliffs, is a major update Java Edition, released on November 30, 2021, which updated the overworld generation with huge caves, higher mountains, and new biomes. This update was first made public with Snapshot 21w15a, when Mojang announced they were splitting Caves & Cliffs into two major releases. Some features of 1.18 and 1.17 were being developed at the same time as the official data set was released to preview the new world generation.

Innovations

objects

Plate

Quiz: Which Marvel Hero Are You?

10 questions

I will answer everything!

A new record "otherside" has been added, the track of which was written by Lena Rein.
- Has a small chance to be found in Fortress Corridor Chests or very rarely in Treasury Chests.

Generating the world

Caves

Completely redone.
Now stretch down to Y = −59
They can consist of two types of stone, depending on the depth at which they are located.
- Caves above Y = 0 are mostly made of normal stone.
- Between Y = 0 and Y = 8 there is a mixed layer of stone and deep schist.
- Abyssal slate completely replaces stone, starting at Y = 0.
  - Some ores and structures will still generate in the deep schist layer, as well as in tuff.
  - Earth, diorite, granite and andesite do not generate in this layer.
Karst and lush caves can now generate underground.
Can now spawn with aquifers and bodies of water that are independent of sea level (Y = 63).
- Aquifers below Y = 0 may be composed of lava rather than water.
The caves that appeared before the new generation of the world have been significantly improved and will be mixed with new ones.
Added rifts that are similar to canyons, but narrower and deeper.
Noise caves have been added, which have three options in the form of cheese caves, spaghetti caves and noodle caves.
- The cheese caves have stone pillars stretching from the ceiling to the floor.
  - These caves are so huge that you can easily fly elytras in them.
  - They abound in aquifers and ores.
- Spaghetti caves are elongated caves with occasional small aquifers. Reminiscent of caves before the new generation.
- The Noodle Caves are a thinner, wavy, and claustrophobic version of the Spaghetti Caves.

Mountains

Consist of 6 biomes:
- mountain meadows
  - They are the lowest layer of a mountain and spawn at the base of a mountain, mostly near plains and other temperate biomes.
  - They resemble plains with a cold climate and flowers growing here; the plants in this biome are turquoise green and the water is dark blue.
  - Grass, tall grass, dandelions, cornflowers, poppies, daisies, and onions grow in this biome.
  - Lonely standing oaks and birches, on which there are always bee nests, can rarely be found here.
  - Rabbits, donkeys and sheep inhabit this biome.
  - Rogue villages and outposts meet here.
- mountain grove
  - Reminiscent of a snowy taiga, but with blocks of snow instead of turf.
  - Generates on the slopes of a mountain if it borders a forest.
  - It consists of all types of snow, small spruces grow on the slopes.
  - Rabbits, wolves, foxes, sheep, pigs, chickens, and cows inhabit this biome.
  - Rogue outposts meet here.
- snow slopes
  - Generated on the slopes of a mountain, if it borders on plains or snow-covered tundra.
  - They consist of layers and blocks of snow, loose snow and ice.
  - Rabbits and goats inhabit this biome.
  - Igloo and Rogue outposts meet here.
- jagged tops
  - One of three biomes spawning on mountain tops.
  - They consist of layers and blocks of snow, as well as stone.
  - Generated if the mountain borders temperate, cold, or snowy biomes.
  - Only goats spawn here.
  - Rogue outposts meet here.
- icy peaks
  - One of three biomes spawning on mountain tops.
  - Covered with snow, loose snow, regular and dense ice.
  - This biome generates on smoother, smaller peaks if the mountain borders temperate, cold, or snowy biomes.
  - Only goats spawn here.
- rocky peaks
  - The highest mountain layer that is generated when the mountain is high enough.
  - Generated if the surrounding biomes are desert, jungle, savanna, or wasteland.
  - Covered with layers of stone and gravel.
  - Elongated accumulations of calcite are sometimes generated.
  - Rogue outposts meet here.

ore deposit

A rare elongated cluster of huge size, consisting of ore and other blocks.
Copper ore is generated along with granite and raw copper blocks above Y = 0.
Iron ore is generated along with tuff and raw iron blocks below Y = 0.

Renovation of old worlds

Terrain from new chunks will now blend into existing terrain without harsh or irregular transitions. Any buildings created by players near such chunks will either be intact, buried, or damaged.
The old bedrock layer from Y = 0 to Y = 4 will be replaced by deep shale.
If there is bedrock in a chunk at Y = 0, then a new generation will appear in it under any block that is not air.
The new bedrock layer will be located at Y = −64.

Game process

Achievements

Added four new achievements:
- "Caves and Rocks"
  - To complete it, you must jump from the highest point of the Overworld to the very bottom and remain intact.
- "Just like at home"
  - To complete, you must ride a strider in the Overworld, passing 50 blocks.
- "Star Trader"
  - To complete, you must start trading with a villager at maximum altitude.
- "Play, harmony!"
  - To perform, you must turn on the player in the mountain meadows.
Added the following achievement triggers:
- fall_from_height
  - Activated when the player character lands after falling.
- ride_entity_in_lava
  - Activates during any tick while the player character is riding a strider.

Common

Console Commands

/jfr
- When activated, starts profiling with "Java FlightRecorder" and also configures the following events:
  - minecraft.ServerTickTime: sampling event showing the average server tick time in per second intervals.
  - minecraft.ChunkGeneration: The time required to create the individual chunk stages.
  - minecraft.PacketRead / minecraft.PacketSent: network traffic.
  - minecraft.WorldLoadFinishedEvent: Initial world load time.
- Profiling can be stopped with /jfr stop.
- When profiling is run from an external source, JFR events for network packets are merged instead of one event per packet.

Music

Added new tracks playing in the Survival Overworld or the main menu.
- Written by Lena Reine: "Stand Tall", "Left to Bloom", "Ancestry", "Wending", "Infinite Amethyst" and "One More Day".
  - "Stand Tall" plays in the snowy slopes, jagged, icy, and rocky peaks biomes, as well as the main menu.
  - "Left to Bloom" plays in mountain meadows, lush caves, and the main menu.
  - "One More Day" plays in mountain meadows, snowy slopes, lush caves and the main menu.
  - "Wending" plays in the mountain grove, jagged and rocky peak biomes, as well as in the karst cave and main menu.
  - "Infinite Amethyst" plays in the mountain grove, karst cave and main menu.
  - "Ancestry" is not in the game files, but is in the released Spotify playlist. This can be confirmed by looking at the game's index file for version 1.18.
- Composed by Kumi Tanioka (谷岡久美): "Floating Dream", "Comforting Memories" and "An Ordinary Day".
  - "Floating Dream" plays in the biomes of jagged peaks and lush caves.
  - "Comforting Memories" plays in a mountain grove.
  - "An Ordinary Day" plays in snow slope biomes, karst and lush caves.

Setting

Added the ability to turn off lightning flashes using the "Hide lightning bolts" option. Lightning itself does not disappear.
The device for sound output in the game can now be selected in the settings.
Added Chunk Handling option to graphics settings.
- Determines which chunk sections are updated synchronously in the same frame.
  - Has three options:
  - blocking, which updates chunks the same as before 21w37a; by event и streaming, which prevent small hangs when placing or destroying blocks.
    - However, the last two options can cause rare visual delays when updating the world.
Added a new "Simulation" option to the graphics settings.
- Essences, blocks and fluids will no longer update when out of line of sight.
- Allows you to increase the draw distance with less CPU load.
Added "Save Indicator" option to graphics settings for single player.
- An indicator appears in the lower right corner of the screen whenever the game saves a world file.
- Enabled by default.
Added a separate "Network Settings" tab for managing multiplayer games:
- The Realms Notifications option has been moved to this tab.
- Contains a new option "Show in lists".
  - When activated, prevents the player's name from being displayed in the server list.
- It contains the "Server Difficulty" parameter to indicate the current game difficulty of the server.

Subtitles

Added subtitles for various bag sounds.
Added subtitles when cutting plants with scissors.

Loot tables

Required field added type.
- Written in BlockEntityTag.id to ensure that the tag is correctly transferred between versions.
Added new feature set_potionto set the tag Potion for any subject.
- Contains the following options:
  - id: identifier for the potion.

Tags

The following block tags have been added:
- azalea_grows_on
- azalea_root_replaceable
big_dripleaf_placeable
- It contains a garden bed and #dirt and #small dripleaf placeable tags for blocks.
- Large hardplate can be placed on blocks that are in this tag.
- replaceable_plants
- terracotta
Added the following item tags:
- dirt
- terracotta
Added the following block-specific tags to select the appropriate entities to spawn:
- animals_spawnable_on
- axolotls_spawnable_on
- foxes_spawnable_on
- goats_spawnable_on
- mooshrooms_spawnable_on
- parrots_spawnable_on
- polar_bears_spawnable_on_in_frozen_ocean
- rabbits_spawnable_on
- wolves_spawnable_on

Telemetry

Returned to the game, before 18w20c was known as "snooper".
- Currently available only during world loading.
- Sends data when loading a single player world or connecting to an online game.
- Contains the following information:
  - Launcher ID
  - User ID (XUID)
  - Client session ID (changes on restart)
  - World session id (changes depending on world loading, will be reused for subsequent events)
  - Version of the game
  - Name and version of the operating system
  - Java runtime version
  - Modification of the client or server (same information as in the bug report)
  - Server Type (Single, Realms or other)
  - Game Mode

Particles

Added particles block_marker, replacing light и barrier.
- Rendered with the texture declared in the slot particle for the model that is assigned by the configured state of the block.
- Can be summoned using the same syntax as particles block (i.e block_marker wheat[age=2]).

Font

Font added illageraltresembling runes from Minecraft Dungeons.
- Can only be used with console commands at the moment.

Debug Screen

Added three new stats: "Multinoise", "Biome builder" and "Terrain".
- They only appear if the dimension the player character is in uses multi-noise biome generation.
- The "Multinoise" indicator has several parameters depending on the position of the player character in a particular biome:
  - The parameter "C" (continentality) is used to distinguish ocean from land.
  - The "E" (weathering) parameter determines the evenness of the terrain.
  - The parameters "T" (temperature) and "H" (humidity) are not responsible for the generation of terrain, but only for the distribution of biomes.
  - The "W" (quirkiness) setting indirectly affects the "PV" noise value (peaks and valleys) and determines which biome variant will be generated.
- The "Biome builder" metric classifies noise values for terrain and biome generation.
- "Terrain" gives values related to terrain generation.

Language

Added Lombard language.
Added tokipona.

NBT tags

Spawner now has a new tag CustomSpawnRules, which allows players to override the spawn rules for summoned mobs.
- In this tag you can specify BlockLightLimit, which determines the maximum level of illumination emitted by blocks for spawning mobs from the spawner.

server.properties

Added parameter simulation-distance.
Added parameter hide-online-players, which prevents sending the list of players on the server when requesting the status.

Changes

Blocks

Big Hardwood

Large Hardleaf can now only be placed on Clay Block, Dirt, Rocky Ground, Bed, Turf, Moss Block, Mycelium, Podzol, and Rooted Ground.

Door

The spruce door model has been changed to fix the top and bottom textures.
Changed the textures of the oak and iron doors to remove the extra horizontal line.

Wood

The textures of the top faces of the crimson and distorted legs have been changed in accordance with Bedrock Edition
Changed the texture of the top face of dark oak wood.
Changed the texture of the side faces of the hewn dark oak wood to match the color of its top side.

Stone cutter

Copper block can now be crafted into 4 carved variants.

The Department

The texture of the base has been changed to match the boards from the Texture Update.

Comparator

Changed the texture of the base of the activated comparator from on .

Laminaria, cave, weeping and winding vines

Now stop growing when using scissors on their tip.
- Trimming changes state value age to 25.
The texture of the cave creeper has been changed from on .

Copper ore

Now drops 2-5 raw copper instead of 2-3.

Sea guide

The pickaxe now speeds up the block mining process.

Anvil

Slightly changed the hammer icon in the anvil UI.

painted glass

Changed the textures of the red and blue options to match the transparency of other types of stained glass.

cocoa fruit

Texture of cocoa fruit having states stage0 и stage1, were changed.

carrot sprouts

Texture of carrot sprouts having state stage3, has been changed: extra pixels removed.

Glass panel

The texture of the top side has been changed to match the side faces.

Enchanting table

Now emits level 7 light.
Updated the lapis lazuli icon in the UI from on .

Cartographer's table

The texture has been changed to match the updated boards from the Texture Update.

grassy path

The side texture has been changed to match the top face of the block.

objects

Beetroot and watermelon seeds

Item icons have been moved 1 pixel down.

Bonfire and Bonfire of Souls

Item icons have been changed from on .

Door

Changed the inventory icons of all doors, except for the crimson and distorted ones, from on .

Plain and glowing frames

Item icons have been changed from on .

Nameplate

Changed item icon from on .

Mobs

Axolotl

Now only spawns above clay blocks in lush caves.
Axolotls are now separated from other mob spawns.
The texture of the brown axolotl has been changed.

Witch

The texture of the witch no longer contains an unused headgear.

zombie villager

Removed random pixels from armorer and gunsmith textures.

Wither

The wither skull texture has been changed to match the updated wither face texture from the Texture Update.

Goat

Now only spawns in snow slopes, jagged peaks, and icy peaks.

Lama

Now also follows players holding haystacks.

Horse, mule and donkey

Now also follows players holding Golden Carrots, Golden Apples, or Enchanted Golden Apples.

Devotee, rogue, defiant, illusor and despoiler

Children of villagers no longer attack.
Vindicator and Evoker textures no longer contain unused headgear.
Removed a few extra pixels from the illusion texture.

A parrot

Changed the model of the parrot so that its wings are not upside down.

Glowing octopus

Now spawns in water below Y = 30.

Cod, salmon, puffer fish, tropical fish, octopus and dolphin

Now spawn in water from Y=50 to Y=64.
In addition, tropical fish can spawn in lush caves at any height.

Drowned

Can now spawn in aquifers located inside karst caves.

Common

Hostile mobs now spawn in places where the light level is 0.
- This change only applies to light emitted by blocks, not celestial bodies.^[7]
Optimized the AI for axolotls, goats, hoglins, zoglins, villagers, normal and ferocious piglins.
Breeding mobs other than sheep now correctly tilt their heads when they see food in the player's hands and are flipped with a tag called dinnerbone or Grumm.

Entities

Armor Rack

The texture of the smooth stone base has been changed.

Generating the world

Rogue Outpost

Can now spawn in new mountain biomes.

Amethyst Geode

Now it only generates up to Y = 30.

Biomes

Some biomes have been renamed:

Only applies to the old mountain biome that existed before 1.18

Since the shape and height of the terrain is no longer dependent on biomes, the following technical options have been removed from the game and their code has been merged with the code for the main biomes:

As a result:
- Villages and temples now generate in all desert variants.
- Rogue villages and outposts now generate in all taiga variants.
- Witch huts now generate in all variants of the swamp.
- Igloos now spawn in all snowy taiga variants.
- Realms that previously had removed biomes will be conditioned to replace them with standard variants.

Upper world

Biomes are now generated using multi-noise generation.

Village

Can now spawn in mountain meadows.
- The meadow option is no different from the plain.

jungle temple

No longer generates over water.

Abandoned mine

The wasteland now generates a little higher.

fossils

Fossils generated at great depths spawn with diamond ore instead of coal.

Source

Lava springs now generate in deposits of calcite, earth, snow, loose snow, and dense ice.
- Because of this, lava springs can now generate in mountains and snowy areas.
Water sources no longer generate above Y = 192, their number in the world has been slightly reduced.

rocky shore

Now spawns with elongated gravel piles.
Can now adjoin any biome, not just extreme hills.

Karst cave

Now generates naturally underground or inside hills and mountains.
Drowned spawn in aquifers located inside this biome.

Treasure

The treasure can now contain a Potion of Underwater Breathing.

Fortress

Will generate in a stone shell.
- Negative Y levels will affect the shell around the fortress: it will consist of deep schist.

Ocean

The generation of different types of ocean now depends on biomes with the appropriate climate:
- Frozen Ocean now generates near snowy taiga, snowy plains, or a snowy beach.
- Cold ocean now generates near taiga, perennial taiga, plains or forests.
- Normal ocean now generates near plains, forests, birch forests or dark forests.
- Temperate ocean now generates near savannahs, jungles, plains or forests.
- Warm Ocean now generates near deserts or wastelands.
The warm ocean can now have greater depth.

Beach

Now much wider.
- There is a chance the beaches won't generate at all in order to provide some variety.

Пустошь

Can now spawn on mountain peaks.
Red sand began to generate a little higher.
Red sandstone has started to generate in the wasteland again.

desert temple

No longer generates over water.
Now spawns on the surface instead of at a fixed Y level, but can still be partially covered by sand.

lush caves

Now generates naturally underground or inside hills and mountains.
Azalea trees grow over lush caves.

Ore distribution

Changed the generation of ores, due to which its types are now unevenly distributed around the world, similar to lapis lazuli ore. Some still generate evenly.
- Coal ore is generated uniformly from Y = 136 to Y = 256 and unevenly from Y = 0 and Y = 192, peaking at Y = 96.
- Copper ore occurs between Y = -16 and Y = 112 and, like other ores, spawns unevenly. The maximum amount of this ore is located at a height of Y = 48. More frequent accumulations of copper ore can be seen in karst caves.
- Iron ore spawns unevenly above Y=80, peaking at Y=256; from Y = −24 to Y = 57, reaching a maximum at Y = 16; and uniformly between Y = −64 and Y = −32.
- Gold Ore now occurs between Y = -64 and Y = 32, peaking at Y = -16. In addition, some of it is also generated below Y = −48. The maximum height of gold ore in the wasteland has been increased from Y = 79 to Y = 256, and the total number of mineral veins here has been increased.
- Lapis lazuli ore generates unevenly between Y=32 and Y=-32, peaking at height 0; and uniformly from Y = 64 to Y = −64, without meeting in the open air, like ancient debris.
- Red ore is formed uniformly at a height from Y = 15 to Y = −64; and unevenly below Y = −32, reaching a peak at a height of −64.
- Diamond ore generates unevenly below Y=16, peaking around Y=-64.
- Emerald Ore spawns unevenly above Y = −16, peaking at Y = 256 and decreasing as altitude decreases.

Treasure chest

Increased the number of treasures in the world.

Common

Terrain generation no longer depends on biomes, which now adapt to a particular terrain.
- This allows you to change the height and shape of the terrain for the biome.
  - For example, deserts and forests can have hilly terrain without the need for a biome specially created for such generation.
- This also results in a smoother transition from one biome to another.
The terrain has been changed: now it is smoother and sometimes has sharp elevation changes.
Added a new random number generator used to generate the Overworld.
The shape of the bedrock layers now depends on the game grain, not the version.

Game process

Achievements

The "Swift as a Hare" achievement is now preceded by "Sleep, my joy, sleep" instead of "Adventure".
The number of biomes to complete the Adventure Time achievement has been increased from 42 to 50 as some tech biomes have been removed and some have been added to the game. Because of this, the following biomes now need to be researched:

Weather

Sleep now only allows you to skip rain or thunderstorms.

Common

Absolute height

Has been increased to 384 blocks: 64 blocks up and 64 blocks down, so you can now build from Y=-64 to Y=319 in the Overworld.

Running

A running player character will no longer slow down to walking speed if they press their hand against a wall.

Data Generator

Option --report now creates complete world generation reference files, not just biomes.

Chunk mapping pipeline

The order of priorities has been changed.
- Due to the high draw distance, unloaded chunks no longer appear among loaded chunks when flying fast.

Data set

Data set format increased to 8.

Setting

Moved the Sneak, Run, and Auto Jump options to the Controls tab.
Draw distance now loads the area around the player as a circle instead of a square.
The default brightness value is now 50.

Clouds

Cloud height increased from 128 to 192 blocks.

Resource Pack

The resource pack format has been increased to 8, as a result of which:
- inventory.png now contains an effects list sprite designed for low resolution screens.
The resource pack size limit for the server has been increased from 100MB to 250MB.

Performance

Various background tasks, including world creation, now run in the background thread pool.
- The size of the thread pool can be determined by the formula Количество доступных потоков ЦП - 1.
  - The maximum number of threads is 255 instead of 7. This limitation can be overridden by the Java system property max.bg.threads.

Server

server.jar now merges individual libraries instead of merging all files into one archive.
- This change is intended to address certain issues related to Java modules.
When you run server.jar will unpack the libraries into a directory configured with bundlerRepoDir (by default this is the working directory).
- To start a main class other than the server, use the property bundlerMainClass.
The server classes are now signed.
Release server.jar with empty bundlerMainClass it will now simply check and extract files and then exit.

Game event scoring system

Removed length restrictions for slots, counters and team names.

Player spawn

The algorithm for selecting the area for the player's spawn has been reworked.
- Now depends on climate parameters that control biome placement and world generation. Players will no longer spawn in the ocean or any other inconvenient place.

Splashes

The splash "[this splash text has been delayed until part 2]" has been changed to "[this splash text is now available]".
Splash "Now Java 16!" was changed to "Java 16 + 1 = 17!".

Tact

Changed some internal parts that affect the change of blocks and liquids in order to reduce the time to save the world.

Tags

block tag lava_pool_replaceables renamed to lava_pool_stone_cannot_replace.

World types

Changed "Advanced" and "Large Biomes".
- The landscape of the world with the type "Advanced" has the following characteristics:
  - The maximum terrain height has been increased from Y=256 to Y=320.
  - The offset above sea level has been doubled.
  - Significantly increased the values of 3D noise, which leads to the opposite decrease in coefficient values.
  - Mountain peaks have become sharper.
- The landscape of the world with the "Large Biomes" type now has the following characteristics:
  - Biome size increased by 4 times, except for rivers and mountains.
  - The influence of multi-noise generation is reduced by a factor of 4 for temperature, vegetation, continentality and weathering, but not for ribbed noise.

Chunk format

Level.Sections[].BlockStates и Level.Sections[].Palette chunks are moved to a container structure located at Level.Sections[].block_states.
Level.Biomes chunks now have a palette and are in a similar container structure to Level.Sections []. biomes.
Level.CarvingMasks[] chunks are now long[] instead byte[].
Removed Level and moved everything that it contains.
- Level.Entities was moved to entities.
- Level.TileEntities was moved to block_entities.
- Level.TileTicks и Level.ToBeTicked were moved to block_ticks.
- Level.LiquidTicks и Level.LiquidsToBeTicked were moved to fluid_ticks.
- Level.Sections was moved to sections.
- Level.Structures was moved to structures.
- Level.Structures.Starts was moved to structures.starts.
- Level.Sections[].BlockStates и Level.Sections[].Palette have been moved to a container structure in sections[].block_states.
- Level.Biomes now has a palette and is in a similar container structure to sections[].biomes.
Added yPosA that defines the minimum Y position in the chunk section.
Added below_zero_retrogenAn containing data to support generation below Y = 0.
Added blending_dataA that contains data to support blending the new terrain generation with existing terrain.

Main menu screen

Changed the panorama on the main menu screen to show updated mountains.

Effects

Changed the appearance of the list of effects in the inventory.
- Now visible even with an open recipe book.
- The list of effects now appears to the right of the inventory window instead of the left.
- The effects list now wraps to the inventory window instead of being duplicated to reduce screen clutter.
- There are now two effects list view modes: compact and classic:
  - Classic is a familiar list of effects with icons, names, and duration.
  - Compact is a list of effects with a single icon, designed for devices with a small screen resolution.
  - The game will automatically switch between the two modes depending on the screen resolution.

Common

Entity collisions have been optimized.
The minimum Java version required to play has been increased from 16 to 17.

Rectification

239 bugs fixed From released versions prior to 1.18

MC-7200 – Cave/tunnel generation may cut tunnels a bit too soon.
MC-29274 – Withers will not pursue players in survival mode unless attacked.
MC-30560 – River through eroded badlands biome generates floating rock formations at water surface.
MC-32813 – Floating water / lava above caves / cave carver doesn't update water.
MC-44055 – Game fails to switch the audio output from one device to another from the title screen after the game has started.
MC-46584 – Clicking and dragging MOUSE 3 (mouse wheel) over item slots incorrectly attempts to place full stacks in Survival.
MC-49010 – Cloning pressure plates or buttons whilst they're activated keeps them pressed forever.
MC-50888 – Can get out of 30,000,000 area.
MC-53444 – You can get outside of the world border by mounting a rideable entity (boat, pig, etc.) outside of it.
MC-54119 – Can place/take water/lava/lily pads outside world border and inside spawn protection.
MC-54545 – Client render distance doesn't adjust to server render distance if they are different, causing faulty chunk loading.
MC-62550 – World border not correctly initialized for the End and Nether.
MC-63340 – Sleeping always resets time until rain.
MC-65628 – Desert pyramids generate underground when using amplified or custom terrain.
MC-72831 – Water lakes can generate in deserts.
MC-73300 – “Saving Level…” text not appearing in pause menu.
MC-80824 – Spawning in some biomes causes "Unable to find spawn biome" warning.
MC-85975 – Slimes don't spawn in the swamp hills biome.
MC-96535 – Ambient property of potion effects with ShowParticles:0b is not neglected.
MC-101334 – Required space for placing a boat is too small.
MC-101917 – Andesite, diorite and granite won't generate above a height of about 80.
MC-109260 – Full-width punctuation characters are rendered incorrectly.
MC-113425 – Player can interact with entities outside the world border.
MC-116359 – Status effects aren't displayed in inventory when recipe book is open.
MC-117800 – Half bed can be placed outside the world border.
MC-118134 – Item frame texture as an item uses texture of oak planks.
MC-121997 – Every dimension's world border is operating independently, and doesn't appear where it actually is.
MC-123277 – Too long scoreboard objectives and team names are not detected when commands are parsed.
MC-125033 – Old cave and ravine generation gets cut off unnaturally on chunk borders near water.
MC-126133 – Undercover ravines sometimes generate cut off at chunk borders.
MC-128762 – Strongholds do not generate in ocean buffet worlds.
MC-128770 – Woodland mansions still generate in dark forest hills.
MC-129266 – Jagged ocean transitions and slower biome generation.
MC-129485 – Certain biome specific plant distribution is completely based on chunks, causing patchy biome generation.
MC-129912 – Player no longer spawned at highest level at world spawn.
MC-131686 – Spawn in ground with Buffet generation when creating a new world.
MC-131808 – Forests don't spawn trees near the positive edges, but overstretch bounds on the negative edges.
MC-131930 – Deep warm ocean was generated without corals and sea cucumbers.
MC-132175 – Beaches generate along swamp hills when bordering an ocean.
MC-132285 – Isolated water block floating in mid-air.
MC-132306 – Snowy grass without snow near lakes in snowy biome.
MC-132347 – Spawning inside icebergs.
MC-132429 – Sand beaches generate when bordering gravelly mountains biomes.
MC-133466 – Certain world configurations force the player to spawn at X=8 Z=8.
MC-133582 – Dolphins try to catch up with boat on land.
MC-134407 – Ocean ravines spawning underground with a stone roof on top.
MC-135947 – Conduit takes a long time to break when underwater.
MC-136288 – Strongholds don't generate in swamp biomes.
MC-136523 – Invisible world border in the End dimension.
MC-137140 – Llamas cannot spawn in shattered savanna plateau.
MC-137950 – Signs textures do not correspond to the actual texture of their handle.
MC-137956 – Lakes still generate in superflat preset "Overworld" after removing its tag.
MC-138118 – Parrot wing texture is reversed on the bottom.
MC-138734 – Spawn point for seed 0, world type Buffet with badlands plateau biome is under surface, ⇒ player dies.
MC-138782 – Stranded dolphin tries to catch the boat on the water and stops beating.
MC-138801 – The interactions between a biome and another biome and its variants are inconsistent.
MC-140151 – Modified jungle edge biomes only generate when a jungle borders a swamp hills biome.
MC-140690 – Giant spruce taiga hills have no difference with giant spruce taiga.
MC-142385 – Campfire texture has one pixel extending into hotbar outline.
MC-145376 – Bamboo can generate underground when generating in non-bamboo jungles.
MC-147122 – You can set your spawn point outside the world border using a bed or respawn anchor.
MC-148182 – The zombie villager "profession" texture uses villager-skin-colored pixels.
MC-148422 – Stripped dark oak log side texture is too bright.
MC-149822 – Bottom border on status effect displays in the inventory is missing.
MC-150567 – Dark oak log top texture bark ring not updated.
MC-152506 – Wither skull projectile has faces with old texture.
MC-152966 – Increase in villages generating in versions after 1.10.
MC-156616 – Badlands layers not generating properly.
MC-158410 – Strongholds don't generate in beach surface and snowy beaches buffet worlds.
MC-159025 – Drowned do not spawn in warm ocean biomes.
MC-160256 – Texture of door items does not match the blocks.
MC-160710 – Chat messages written while sleeping are deleted after waking up.
MC-162038 – Pillagers have no hood texture.
MC-162803 – Lily Pad mirrors texture when placed.
MC-166238 Trees can generate on mycelium.
MC-166423 – Splash water bottles don't damage endermen.
MC-166508 – Glitchy chunk rendering since 1.15 pre-release 2.
MC-167277 – Swamp hills don't naturally generate seagrass.
MC-169523 – As of 18w06a, the sand, clay and gravel blocks no longer generate around small lakes.
MC-170551 – Foxes can't spawn on podzol or coarse dirt.
MC-170557 – Spruce door top/bottom has the incorrect texture.
MC-173339 – Comparators lit base texture is incorrect.
MC-175929 – Ice spikes get cut off below height limit on AMPLIFIED worlds.
MC-176309 – Illusioner has a few misplaced pixels left in their texture.
MC-176824 – Red glass and outline of blue glass are slightly more opaque.
MC-176833 – Anvil GUI hammer uses an outdated iron pallet.
MC-177016 – Some lakes in frozen biomes generate unfrozen.
MC-177664 – Sound system warning messages are spamming the system log.
MC-180398 – Too many sounds causes client to stall, limit can be easily reached with rabbits.
MC-182362 – Score callbacks with a too long name break callback chain.
MC-183184 – Sprinting stops as soon as you touch another block.
MC-185033 – Underground spawn in single biome world type.
MC-185034 – Always respawning on the same block with no spawnpoint set.
MC-185263 – Non full chunks in cache memory "semi-leak".
MC-186042 – Plains biome is always generated when a swamp borders a desert, snowy tundra or snowy taiga.
MC-187174 – World border does not take Nether coordinates into account.
MC-187716 – Nether biome surface builder types incorrectly assume the world height is 128 blocks.
MC-188096 – Gravelly mountains+ is no different than gravelly mountains.
MC-190285 - "bedrock_roof_position» tag number does not represent height, but height modifier.
MC-190363 – Some biomes generate as "Single biome" worlds in "Floating islands" world type.
MC-190724 – Spawning in solid blocks in single biome "Badlands Plateau" world.
MC-193348 – Status effect bars shift the player's inventory in Creative mode.
MC-194822 – Glass pane top texture has not changed with the Texture Update.
MC-194950 – Cactus in potted cactus is vertically squished.
MC-196723 – If the player gets an effect in Creative mode while their inventory is open and not having an effect before, they won't see the effect in their inventory until they close and open their inventory.
MC-197688 – Mountain edge never generates.
MC-198007 – Villages replace ice with path blocks instead of wood.
MC-198232 – Music plays less frequently as it normally did.
MC-199298 – Strongholds don't generate in bamboo jungles.
MC-199662 – Extra pixels in cocoa pod textures as of Texture Update.
MC-200046 – Cartography table planks texture is incorrect/slightly outdated.
MC-200137 – Lectern base plate texture still uses the old planks texture.
MC-200230 – Anomalous stripes/grid ice generation in frozen ocean biome.
MC-200494 – In mineshafts, torches can generate attached to blocks other than the wooden supports.
MC-200640 – Despite being a coastal biome, mushroom field shores don't have a warm/unique water color.
MC-200803 – Gravelly mountains+/modified gravelly mountains placed incorrectly in the biome selection.
MC-200956 – Beetroot seeds texture is not vertically centered.
MC-200957 – Melon seeds texture is not vertically centered.
MC-202036 – Adding a biome to a datapack shifts biome IDs in existing chunks.
MC-202166 – "Times Crafted" statistics column doesn't always display data correctly.
MC-202376 – Rabbits, instead of spawning on snow blocks, spawn on snow layers.
MC-202910 – Inconsistent highlight color on armor.
MC-203155 – Enchanting table GUI uses old lapis texture.
MC-204901 – Side texture for dirt paths hasn't been updated with the texture update.
MC-206303 – Minecarts have old textures on the bottom.
MC-206620 – Cauldron invisible when crawling in it.
MC-206660 – Staractites don't fall properly if there are blocks directly below it.
MC-208352 – Dark forest hills don't generate small patches of plains or sunflower plains, but dark forest does.
MC-208353 – Several hills biomes do not generate sporadically replacing patches of their regular biome counterparts.
MC-208601 – Axolotls do not avoid danger when pathfinding.
MC-212113 – Glow lichen can spawn underwater while not in a cave.
MC-213779 - FPS drops when looking up in a tall world (4064 blocks).
MC-214288 – Player does not spawn on the surface of the world when min_y is greater than 0.
MC-214335 – Flower forest is much steeper than regular forest.
MC-214783 – Oceans generate with stone floors.
MC-214797 – Pointed dripstone can generate floating at transitions between local water levels.
MC-214799 – Aquifers sometimes create air pockets.
MC-214864 – Hard edges when new caves generate near surface.
MC-214894 – Bamboo generates in caves under jungles.
MC-214959 – Sugar cane generates in caves.
MC-214963 – Mineshaft generation is non-deterministic.
MC-215062 – Weird aquifer barrier generator and water in incorrect states.
MC-215139 – Some water in caves will not start flowing.
MC-215296 – Mineshafts often don't generate in floating island worlds.
MC-215876 – Dirt can generate below Y=0 from mineshafts.
MC-216432 – Mineshafts can generate with light but without any torches.
MC-216448 – River generates over a ravine.
MC-216561 – Torches not spawning in abandoned mineshafts under Y=0.
MC-216784 – Ruined portals don't generate below Y=0.
MC-216952 – Some chunks interrupting with cave systems filled with blocks.
MC-216967 – Kelp and seagrass can generate in aquifers.
MC-217038 – Large dripstone structures can be generated outside the caves.
MC-217056 – Some high-speed particles lag/freeze the game.
MC-217136 – Random noise pillars generating mid air.
MC-217379 – Pufferfish did not spawn in the deep warm ocean.
MC-217465 – Unnatural shape looking like a chunk border but appears to be completely unrelated to chunk borders.
MC-217509 – Inefficient generation of aquifers, noise caves and ore veins.
MC-217906 – Large amounts of axolotls cause performance issues.
MC-218167 – Chatting causes lag to occur.
MC-218532 – Terracotta generating in caves in badlands.
MC-218592 – Azalea tree can spawn more than two blocks deep underwater.
MC-219035 – Fossil structures can't generate in far east and south blocks of a chunk.
MC-219132 – Cave vines hang from amethyst buds and clusters.
MC-219774 – Magma blocks spawn everywhere underwater in 21w10a.
MC-219946 – Weird flat sections of terrain.
MC-220061 – Painting back texture is mirrored.
MC-221172 – Warped and Crimson Stems use different top texture from Bedrock Edition.
MC-221641 – Caves can make ravines generate without water.
MC-221679 – End fog loses its gradient when under Y=0.
MC-221777 – Horses, donkeys, mules, llamas, and trader llamas do not follow players holding food.
MC-221815 – Flat roofs in underwater caves.
MC-221917 – Dripstone, pointed dripstone, and cave magma generate in oceans.
MC-222051 – Iron ore generation was not increased in 21w13a.
MC-222154 – Cave vines can generate hanging on dripstone.
MC-222379 – Magma can spawn under air in underwater caves.
MC-222388 – Acacia trees under Y=0 often grow with bare branches.
MC-222763 – Armor stands use the old smooth stone slab texture.
MC-223044 – Floating water can generate in ravines.
MC-223051 – Dripstone can generate in surface lakes.
MC-223148 – Extended height message goes behind the scrolling bar.
MC-223840 – Lava blocks from "Lava Aquifers" don't get updated when a cave cuts through underneath them.
MC-223917 – Goats on fire do not attempt to pathfind towards water.
MC-224205 – Cloned big dripleaves remain tilted forever when their tilt value is not equal to "none".
MC-224494 – Regular dirt can generate naturally on the surface near pools.
MC-225030 – Dungeons are extremely rare compared to in the past.
MC-225506 – Grass blocks can generate naturally in underground pools.
MC-225553 – Oak and iron doors have a line in their textures.
MC-225781 – The noise cave lava level and the cave carver lava level generate 1 block apart.
MC-225842 – Flowers can generate on large plants near lakes.
MC-225858 – Seeds and flowers appear in ponds.
MC-225949 – Parity issue: Different Bedrock and Java sign items textures.
MC-226000 – Pointed dripstone items in underground pools.
MC-226313 – Lava can generate floating in caves.
MC-226437 – Water lakes generating in snowy tundra's can sometimes contain dark spots.
MC-226682 – World can fail to render/load causing visual issues.
MC-226689 – Albert Pastore's name is gray and improperly indented in the credits.
MC-226711 – Carrot crop texture has an incorrect pixel.
MC-227064 – Floating grass can still generate above water lakes.
MC-227163 – Credits say "IT Manager" instead of "IT Managers".
MC-227204 - "Explore, dream, discover" quote no longer appears after new credits.
MC-227206 – Random names in the new credits use curly quotes/apostrophes.
MC-227231 – Steven Silvester's name might be misspelt in the credits.
MC-227239 – In the credits, Elizabeth Batson's company name is improperly capitalized.
MC-227244 – Ore blocks from ore veins float in underwater magma ravines.
MC-227258 – Flowering Azalea Leaves are in both #minecraft:mineable/hoe and #minecraft:mineable/axe tags, while regular Azalea Leaves (and all other leaves) are only in #minecraft:mineable/hoe.
MC-227329 – The usage and punctuation of "Inc" is still inconsistent in the credits.
MC-227398 – Misplaced pixel on cave vines texture.
MC-227537 - Game crash: java.lang.NullPointerException: Cannot invoke "it.unimi.dsi.fastutil.objects.ObjectSet.remove(Object)»because«$$4"is null.
MC-228745 – A large hardwood could not be supported by a garden bed.
MC-228900 – Cave vines can generate floating (Recurrence of MC-218817).
MC-229013 – Lava lake decorator config is unused.
MC-229365 – Large amounts of goats cause performance issues.
MC-229517 – Conversion sounds for strays and drowned is controlled by Friendly Creatures mixer, not Hostile Creatures.
MC-229977 – Breaking blocks with pistons on the east/west direction causes significant lag.
MC-230302 – Glow item frame item texture is missing two pixels.
MC-230343 – Parity issue: Enchanting tables do not emit a light level of 7.
MC-230866 - When eating food while traveling to the Nether through the portal, an error report is recorded in the game log.
MC-231219 – Cave vines can occasionally generate hanging on fences.
MC-231272 – Cave vines can sometimes generate hanging on cobwebs.
MC-231400 – Modified badlands plateau and mountain edge don't generate and gives out invalid biome data in single biome worlds.
MC-231666 – Dragon egg can teleport to outside the world border.
MC-231782 – Missing "(" in Frank Criscione credit.
MC-231818 – You can no longer use the up or down arrow to navigate between servers in the multiplayer menu.
MC-231863 – Game crashes when trying to access the Realms settings.
MC-233050 - #lava_pool_stone_replaceables tag name is misleading.
MC-233661 – In some cases, sand blocks generating over lakes do not cause light updates, resulting in large dark spots.
MC-233771 – Parity issue: Light blocks do not display their light level when shown via a held light block item.
MC-233883 – The hide and show messages buttons in the social interactions menu display their hover text regardless of the position of the cursor.
MC-234039 – The back of wild axolotls are off-centered.
MC-235567 – Clusters of dripstone (stalagmites) tend to generate abnormally frequent with thickness “tip” on tall caves.
MC-237608 – Server address shown when connection fails during server startup.
MC-238006 – Emerald ore and infested blocks do not generate in snowy mountain biomes.
MC-238073 “Decorators didn't depend on the grain of the world.
MC-238877 – Deep ocean and ocean are not needed for the "Adventuring Time" advancement.
MC-238966 – Old growth spruce taiga and old growth birch forest aren't a part of the "Adventuring Time" advancement.
MC-238968 – Windswept gravelly hills and windswept savanna aren't a part of the "Adventuring Time" advancement.
MC-240021 – Cullface arguments in cauldrons are excessive.
MC-240229 – Rain and snow fall on the same blocks in a certain height range.
MC-241747 – Inconsistent Colors in grindstone GUI.

Interesting Facts

This is the first major release for Java Edition, which is the second part of a themed update since the Adventure Update.
This is the first version of the game for which experimental pre-builds have been released.