{{Infobox version
|title=Minecraft 18w43a
|image=18w43a.jpg
|image2=Java Edition 18w43a menu.png
|edition=Java
|type=Snapshot
|date=October 24, 2018
|clienthash=6f0fa604e9c8b1996c985aceb9b589fa4e583671
|jsonhash=c3ae981f18f625a235a6aec9a924e2cfa224fa1a
|serverhash=08ca3aaa7ff61d4ae06d5d63476724a1f32cb6b0
|parent=1.14
|prevparent=1.13.2
|prev=
|next=18w43b
|nextparent=1.14.1
}}
'''18w43a''' is the first [[snapshot]] for [[Java Edition 1.14]], released on October 24, 2018{{snap|18w43a|October 24, 2018}}, which adds the very first [[Village & Pillage]] features and [[Texture Update|changes most textures in the game]].
== Additions ==
=== Blocks ===
; {{Animate|Leafless Bamboo JE1 BE2.png; Small Leaves Bamboo JE1 BE2.png; Big Leaves Bamboo JE1 BE2.png|32px}} [[Bamboo]]
* Can be found in [[jungle]]s and [[bamboo jungle]]s.
* Can be found in [[jungle pyramid]]s and supply chests of [[shipwreck]]s.
* Dropped by [[panda]]s when killed, or can be obtained when [[fishing]] in jungle biomes.
* Can be farmed and grow up to 12–16 blocks tall.
** Grows 1–2 bamboo on the top when given [[bone meal]].
* Breaks instantly using [[sword]]s.
* Can be eaten by pandas, used as fuel (enough to [[smelt]] 0.25 items), or planted inside a [[flower pot]].
* Can be used to craft [[stick]]s: two bamboos for one stick.
; {{Animate|Cornflower JE1 BE1.png; Lily of the Valley JE1 BE1.png; Wither Rose JE1 BE1.png|32px}} [[Flower]]s
* Added {{BlockLink|cornflower}}.
** Can be crafted into [[blue dye]].
** Appear in [[plains]] biomes.
* Added {{BlockLink|lily of the valley}}.
** Can be crafted into [[white dye]].
** Appear in [[forest]] biomes.
* Added {{BlockLink|wither rose}}.
** Can be crafted into [[black dye]].
** Inflicts 1 second of [[Wither (status effect)|Wither]] to [[player]]s and [[mob]]s around it, when in any difficulty besides Peaceful.
** Is dropped or planted from any non-undead mob killed by the [[wither]].
; [[File:Loom (S) JE1 BE1.png|32px]] [[Loom]]
* Can be crafted with 2 [[string]] on top of 2 [[planks]].
* Easier way to apply patterns to banners: the purpose is to color and design banners, which was previously done in the crafting grid.
* Has a slot for a [[banner]], a [[dye]] and a [[banner pattern]].
* Generic patterns now only require 1 dye.
* Removed existing banner recipes.
* Special banner patterns can now be crafted into a new item, banner patterns.
** Craftable using [[paper]] and the special pattern items.
* These patterns don't consume the pattern item when used in the loom.
* Available banner patterns are shown as a list.
; {{Animate|Spruce Standing Sign (S) JE1 BE1.png; Birch Standing Sign (S) JE1 BE1.png; Jungle Standing Sign (S) JE1 BE1.png; Acacia Standing Sign (S) JE1 BE1.png; Dark Oak Standing Sign (S) JE1 BE1.png|32px}} [[Sign]]s
* Added spruce, birch, acacia, jungle and dark oak signs.
; {{Animate|Stone Slab JE1.png; Mossy Cobblestone Slab JE1 BE1.png; Quartz Slab JE2.png; Red Nether Brick Slab JE1 BE1.png; End Stone Brick Slab JE1 BE1.png; Mossy Stone Brick Slab JE1 BE1.png; Granite Slab JE1 BE1.png; Diorite Slab JE1 BE1.png; Polished Diorite Slab JE1 BE1.png; Andesite Slab JE1 BE1.png; Polished Andesite Slab JE1 BE1.png; Smooth Sandstone Slab JE1 BE1.png; Smooth Red Sandstone Slab JE1 BE1.png|32px}} [[Slab]]s
* Added stone, andesite, polished andesite, diorite, polished diorite, granite, polished granite, mossy stone brick, mossy cobblestone, smooth sandstone, smooth red sandstone, smooth quartz, red nether brick, and end stone brick slabs.
; {{Animate|Stone Stairs (N) JE1.png; Mossy Cobblestone Stairs (N) JE1.png; Mossy Stone Brick Stairs (N) JE1.png; Granite Stairs (N) JE1 BE1.png; Polished Granite Stairs (N) JE1 BE1.png; Diorite Stairs (N) JE1 BE1.png; Polished Diorite Stairs (N) JE1 BE1.png; Andesite Stairs (N) JE1.png; Polished Andesite Stairs (N) JE1.png; Smooth Sandstone Stairs (N) JE1.png; Smooth Red Sandstone Stairs (N) JE1.png; Red Nether Brick Stairs (N) JE1 BE1.png; End Stone Brick Stairs (N) JE1 BE1.png; Smooth Quartz Stairs (N) JE1.png|32px}} [[Stairs]]
* Added stone, andesite, polished andesite, diorite, polished diorite, granite, polished granite, mossy stone brick, mossy cobblestone, smooth sandstone, smooth red sandstone, smooth quartz, red nether brick, and end stone brick stairs.
; {{Animate|Mossy Stone Brick Wall JE1.png; Granite Wall JE1 BE1.png; Diorite Wall JE1.png; Andesite Wall JE1.png; Brick Wall JE1 BE2.png; Sandstone Wall JE1.png; Red Sandstone Wall JE1.png; Red Nether Brick Wall JE1.png; End Stone Brick Wall JE1 BE1.png|32px}} [[Wall]]s
* Added brick, andesite, diorite, granite, prismarine, stone brick, mossy stone brick, sandstone, red sandstone, nether brick, red nether brick, and end stone brick walls.
=== Items ===
; {{Animate|Flower charge banner pattern.png; Creeper charge banner pattern.png; Skull charge banner pattern.png; Thing banner pattern.png; Globe banner pattern.png|16px}} [[Banner pattern]]s
* Crafted with [[paper]] and their associated items ([[enchanted golden apple]] + [[paper]] = "Thing" banner pattern, etc).
; {{Animate|Crossbow.png; Crossbow Pull 0.png; Crossbow Pull 1.png; Crossbow Pull 2.png; Arrow Loaded Crossbow.png|32px}} [[Crossbow]]
* Crafted from [[string]]s, [[iron ingot]]s, [[stick]]s, and [[tripwire hook]]s.
* Can be used as a [[weapon]] similar to [[bow]]s.
** More [[damage]], more range, takes longer to charge.
** Hold to charge, click to release.
** Charge is saved in [[inventory]], can be used later.
* Can shoot [[firework rocket]]s holding the crossbow in one hand and the fireworks in the other.
* Can be enchanted with new [[enchantments]]:
** [[Multishot]]: Fires three [[arrow]]s at once in different directions; not compatible with Piercing.
** [[Quick Charge]]: Increases the reload speed. 3 levels; 0.25 seconds faster each level.
** [[Piercing]]: Projectiles pierce through [[mob]]s. 4 levels; not compatible with Multishot.
; {{Animate|Blue Dye JE1 BE1.png; Brown Dye JE1 BE1.png; Black Dye JE1 BE1.png; White Dye JE1 BE1.png|32px}} [[Dye]]s
* Added [[blue dye]], [[brown dye]], [[black dye]] and [[white dye]].
** Separated [[bone meal]], [[ink sac]]s, [[cocoa beans]] and [[lapis lazuli]] into their own items: they can no longer be used to dye directly.
** New dyes craftable from respective ingredients.
; [[Spawn egg]]s
* [[File:Ravager Spawn Egg JE1 BE1.png|32px]] [[Illager beast spawn egg]]
* [[File:Panda Spawn Egg JE1.png|32px]] [[Panda spawn egg]]
* [[File:Pillager Spawn Egg JE1 BE1.png|32px]] [[Pillager spawn egg]]
; [[File:Suspicious Stew JE1 BE1.png|32px]] [[Suspicious stew]]
* Found in [[shipwreck]] supply [[chest]]s.
* Can be crafted with a red and brown [[mushroom]], a [[bowl]] and any [[flower]].
* It restores {{Hunger|6}} and 7.2 [[Hunger#Mechanics|saturation points]], and gives roughly 5 seconds of a status effect.
** The effect given upon eating depends on which flower is used, as does the exact duration of the effect.
*** [[Oxeye daisy]] gives [[Regeneration]].
*** [[Cornflower]] gives [[Jump Boost]].
*** [[Lily of the valley]] gives [[Poison]].
*** [[Wither rose]] gives [[Wither (status effect)|Wither]].
*** [[Tulip]] gives [[Weakness]].
*** [[Azure bluet]] gives [[Blindness]].
*** [[Allium]] gives [[Fire Resistance]].
*** [[Blue orchid]] and [[dandelion]] give [[Saturation]].
*** [[Poppy]] gives [[Speed]].
=== Mobs ===
; [[File:Ravager JE1.png|32px]] [[Illager beast]]s
* Destroy [[crop]]s and attack [[villager]]s.
* Have {{Health|100}} [[health]].
* Drop a [[saddle]] when killed (100% of the time, not affected by [[Looting]]).
* Flee from [[rabbit]]s if one is too close.
; [[File:Panda JE1 BE1.png|32px]] [[Panda]]s
* Do not spawn naturally, at the moment.
* Have {{Health|20}} [[health]].
* Drop 1 [[bamboo]] when killed (not affected by [[Looting]]).
* Seek out bamboo and [[cake]] items and eat them.
* [[Breed]]able.
** Baby pandas sometimes sneeze, making nearby pandas jump: when they sneeze, they have a chance to drop a [[slimeball]].
** Variants are inherited by a special panda inheritance system.
* Can have different personalities: either normal, aggressive, lazy, weak, worried, or playful (defined by two tags, HiddenGene and MainGene).
* Have a chance of spawning as a brown panda, which is very rare (both main and hidden gene have to be brown for a panda to appear brown).
* Sometimes roll and sit on hind legs.
* When hit, nearby [[villager]]s display the angry villager [[particles]].
; [[File:Pillager JE1.png|32px]] [[Pillager]]s
* Raid [[village]]s.
* Have {{Health|24}} [[health]].
* Drop [[emerald]]s and their [[crossbow]]s when killed (affected by [[Looting]]).
* They cannot equip armor of any type.
=== World generation ===
; {{BiomeLink|Bamboo jungle}}
* Contains [[bamboo]] and [[podzol]].
=== Command format ===
; {{cmd|drop}}
* Drops items in various contexts.
** Syntax: {{cmd|drop }}.
*** Sources:
**** award: [[advancement]] award context.
**** fish: [[fishing]] context.
**** loot: loot chest context.
**** kill: [[entity]] drops.
**** mine: [[block]] drops.
*** Targets:
**** world: drops in world.
**** player: puts in player [[inventory]].
**** entity: sets entity slots like {{cmd|replaceitem}}.
**** block: puts (distribute, as if shift-clicked) or replaces/merges (insert) items in container.
; {{cmd|schedule}}
* Schedules functions or tags to run in gametime [[tick]]s.
* Any tag/function can be scheduled only once.
* Calling for an already scheduled function/tag replaces the oldest record.
=== General ===
; [[Advancement]]s
* Added 4 new advancements:
** Ol' Betsy: Shoot a crossbow.
** Who's the Pillager Now?: Give a pillager a taste of their own medicine.
** Two Birds, One Arrow: Kill two phantoms with a piercing arrow.
** Arbalistic: Kill five unique mobs with one crossbow arrow.
== Changes ==
=== Blocks ===
; [[Chorus flower]]
* Chorus flowers now break and drop themselves when shot by [[arrow]]s and [[trident]]s.
; [[Dispenser]]
* [[Shears]] can now be dispensed and shear [[sheep]].
; [[Leaves]]
* Now drop 0–2 [[stick]]s.
; [[Nether brick fence]]
* Recipe changed to include [[nether brick]] items rather than just [[nether bricks]] blocks.
** [[Nether brick fence]]s now require 4 nether brick blocks and 2 nether brick items.
** The old recipe is now used to craft [[nether brick wall]]s.
; [[Sign]]s
* Renamed "Sign" to "Oak Sign".
* The default text color changed from black to pure white.
** This color is not affected by [[lighting]].
; [[Smooth quartz]], [[smooth sandstone]], [[smooth red sandstone]] and [[smooth stone]]
* Obtainable from smelting [[blocks of quartz]], [[sandstone]], [[red sandstone]] and [[stone]], respectively.
; [[Smooth stone slab]]s
* Stone slabs have been renamed to smooth stone slabs.
* Are now crafted with smooth stone instead of stone.
=== Items ===
; [[Beetroot soup]]
* Recipe changed to be shapeless.
; [[Book and quill]]
* Rewrote editing to be more intuitive:
** Movable cursor for free text editing.
** Selection support.
** Copy/paste support.
** Keyboard and mouse handling.
** Improved page filling and line wrapping.
** Double-click to highlight a word, triple-click to highlight a page.
* Can now go up to 100 pages.
; [[Dead bush]]es
* Can now be used as fuel.
; [[Dye]]
* Unified all dye names.
** Rose red, dandelion yellow, and cactus green have been renamed to red, yellow and green dye, respectively.
* [[Lapis lazuli]], [[cocoa beans]], [[bone meal]] and [[ink sac]] can no longer used as dyes.
* Added recipes to obtain colored [[stained glass pane]]s and colored [[carpet]].
; [[Rabbit stew]]
* Recipe changed to be shapeless.
=== Mobs ===
; [[Creeper]]s
* Can now drop [[music disc]]s from [[stray]]s, in addition to [[skeleton]]s again.{{bug|MC-112579}}
=== World generation ===
; [[Dungeon]]s
* Renamed to "Monster Room".
; [[Ravine]]s
* Renamed to "Canyon".
=== Gameplay ===
; [[Lighting]] system
* Has been rewritten.
** Moved light storage from [[chunk]]s to a separate structure.
** Moved light calculation from all over the code to a self-contained place.
** Moved light computation off the main thread on the server.
; Performance Improvements
* [[Fish]].
* [[Mob]]s that would spawn and then despawn from being too far away from the [[player]] the next [[tick]] no longer spawn.
* [[Redstone dust]] depowering performance increase.
=== Command format ===
; [[Advancement]]s
* Entity type predicates now accept tags (#baz).
* The damage source predicate now has option: is_lightning.
* The entity predicate now accepts a flag field.
** Available tests: {{code|is_on_fire|is_sneaking|is_sprinting|is_swimming|is_baby|delimiter=,}}.
; Commands/NBT data
* Extended NBT path syntax.
* New chat component for displaying values from NBT.
** Block variant {"nbt": , "block":{"x":, "y":, "z":}}.
** Entity variant {"nbt": , "entity":} .
** If interpret is present and true, contents of selected tags are interpreted as chat components.
* Item lore tag now uses chat component syntax.
* Time arguments in {{cmd|time|set}}, {{cmd|time|add}} and {{cmd|schedule|function}} can now have units.
** t for ticks, s for seconds, d for days.
** Fractions are allowed as long as the result is integer (for example 0.5d).
; Creative menu
* Search box now accepts tags (starting with #).
* Tooltip in creative search menu now lists [[item]]'s tags.
; [[Loot table]]s
* Block drops are now controlled by loot tables.
* Tables and pools accept functions.
* New loot table entry types: {{code|dynamic|tag|alternatives|sequence|group|delimiter=,}}.
* New loot table functions: {{code|apply_bonus|explosion_decay|copy_name|limit_count|set_contents|set_loot_table|delimiter=,}}.
* New loot table conditions: {{code|entity_present|survives_explosion|block_state_property|table_bonus|match_tool|tool_enchantment|delimiter=,}}, and two special modifiers: {{code|inverted|alternative|delimiter=and}}.
* Integer values can now specify random number generator.
** Constant, uniform (default), binomial.
* Optional type used to validate function usage.
** {{code|empty|chest|fishing|entity|advancement_reward|block|delimiter=,}}.
** Using function that references data not available in given context causes warning.
* Entity parameters in predicates: direct_killer_entity - allows access to projectiles etc.
* entity_properties condition now uses same predicate syntax as advancements (like player_killed_entity).
** Parameters are now described in the predicate field.
* New conditions
** alternative: joins conditions from parameter terms with "or".
** block_state_property: check properties of block state, parameters:
*** block: id of block; test fails if broken block doesn't match.
*** properties: map of property:value pairs.
** damage_source_properties: checks damage source.
*** Same syntax as entity_properties, but uses damage source predicate (see player_hurt_entity advancement trigger).
** entity_present: returns true if entity is set.
*** See entity_properties for list of entities.
** inverted: inverts condition from parameter term.
** location_check: applies advancement location predicate, parameters:
*** predicate: predicate applied to location, uses same structure as advancements.
** match_tool: checks tool (only available for block breaking and fishing). Parameters are:
*** predicate: predicate applied to item, uses same structure as advancements.
** survives_explosion: returns true with 1/explosion radius probability.
** table_bonus: passes with probability picked from table, indexed by enchantment level. Parameters are:
*** enchantment: id of enchantment.
*** chances: list of probabilities for enchantment level, indexed from 0.
** weather_check with these parameters:
*** raining - optional boolean.
*** thundering - optional boolean.
* New entries:
** alternatives
*** Tests conditions of child entries and executes first that can run, has no weight or quality, but may have conditions.
** dynamic
*** Gets block specific drops.
**** minecraft:contents: block entity contents.
**** minecraft:self: for banners and player skulls.
** group: Executes child entries when own conditions pass, has no weight or quality.
** sequence: Executes child entries until first one that can't run due to conditions, has no weight or quality, but may have conditions.
** tag: adds contents of item tag;fields:
*** name: id of tag.
*** expand: if false, entry returns all contents of tag, otherwise entry behaves as multiple item entries (all with same weight and quality).
* New functions
** apply_bonus: applies one of predefined bonus formulas.
*** Common fields:
**** enchantment: id for enchantment level used for calculation.
**** formula: type of used bonus formula.
**** parameters: values required for formula (depend on type).
*** Formulas based on existing fortune bonuses.
*** Formula binomial_with_bonus_count, parameters are:
**** probability : float
**** extraRounds : int
**** Adds random value using binomial distribution with n <- level + extraRounds and p <- probabilty.
*** Formula uniform_bonus_count, parameters are:
**** bonusMultiplier
**** Adds random value using uniform distribution from 0 to bonusMultiplier *level.
*** Formula ore_drops, no parameters.
**** Applies formula count *(max(0, random(0..1) - 1) + 1).
** copy_name
*** Copies display name from block entity to item (see enchanting table behavior).
** explosion_decay
*** Applies flat chance (equal to 1/explosion radius) for every item to be destroyed (items in stack are processed separately).
** limit_count, parameters are:
*** limit
**** min - optional
**** max - optional
*** Limits count of every item stack to range.
** set_contents, parameters:
*** entries list of entries (same as in pool).
*** Populates BlockEntityTag.Items with items from entries.
** set_loot_table, parameters are:
*** name: id of loot table.
*** seed: seed; if omitted or 0, LootPoolSeed isn't set.
*** Sets {{code|BlockEntityTag.LootTable|BlockEntityTag.LootPoolSeed|delimiter=and}} tags.
; NBT paths
* Can now return multiple values.
** When used as target, modification is applied to every element.
* When setting location and no elements are found, new matching element are created:
* Add [{k1:v1,k2:v2}] to match objects in list that have matching fields.
* Add {k1:v1,k2:v2} to match objects.
** Selects 0 or 1 elements, mostly as safeguard against mismatched entries.
* Allows negative indices as [index] to index elements in reverse from end.
* Add [] to select all elements from list.
; World generator registries.
* Most of the [[biome]] related features now have a registry and their configuration can be serialized.
* Added a feature registry.
* Added a registry for decorators.
* Added a registry for carvers.
* Added a registry for surface builders.
; Other
* {{cmd|execute data }}
** Returns count of matched elements when used as command.
** Continues on non-zero(if) or zero(unless) count when used as part of command.
* Item frame contents can now be modified with {{cmd|replaceitem}}.
* {{cmd|data|modify|}}
** Applies an operation to selected fields.
** Operations:
*** Are set on all types.
*** Are inserted before index, insert after index, prepend, append on lists.
*** Merge on objects.
** Sources:
*** From to copy a value from an existing tag.
*** Value .
* Added entity type tags.
** Work like other tags, stored in tags\entity_types\.
** The type field in @ selectors now accepts entity type tags.
* Changing item models based on item NBT.
** New item model property: custom_model_data, backed directly by CustomModelData integer NBT field.
=== General ===
; Credits
* Updated the credits list.
; Pause screen
* Added "Give Feedback" and "Report Bugs" buttons.
; Textures
* [[Texture Update|All textures have been updated]].
** New consistent set of [[block]], [[item]], [[mob]], effect, GUI, etc. textures made by [[Jasper Boerstra]].
** Old textures will be offered as a [[resource pack]].
; [[Advancement]]s
* "How Did We Get Here?" now requires {{EffectLink|Saturation}} and {{EffectLink|Blindness}} as these effects can now be obtained through [[suspicious stew]].
== Fixes ==
{{fixes|fixedin=18w43a|prefix=Minecraft
|;old
|1578|Cannot move backwards in Books while writing / Cannot copy anything from the book
|1692|Excessive lag on lamp de/activation across chunk borders
|3329|Naturally generated light sources (fire, glowstone, torches etc.) sometimes do not emit light
|3961|Water, Cobwebs, Magma, Leaves and other blocks save sunlight
|4686|Client movement when teleported
|9188|Fires can leave ghost lighting behind
|11571|Huge lighting updates lag the game.
|76278|Lighting not updating until walked up or block update
|80966|Light calculation of {{code|ChunkSelection}} faulty implemented resulting in client bugs (empty chunks don't show light/render dark)
|88097|Snow blocks receive (useless) random updates and can get destroyed when there is a light glitch
|91136|Lighting update is delayed at chunk borders
|95044|Graphics Card and Sign Colors
|101127|The Wither effect harm the "Wither" Skeleton
|102162|Some light-emitting blocks (magma, lit furnace, lit redstone ore) 'save' block light
|112579|Creepers don't drop disc when killed by Stray or wither skeleton holding a bow
|117067|Trees/leaves too bright under big platform
|119932|Light-emitting solid blocks (lit furnaces, magma blocks, glowstone, lit redstone ore) let light (sunlight, block light) through
|123772|The Lore strings cannot be formatted in json
|124395|Beacon block entity contains code for custom names, despite not storing it to NBT and the beacon GUI not having one
|124926|Blocks don't retain custom names when dropped with /setblock destroy
|129090|Bottom faces of blocks at the bottom of the world always renders as if it's fully lit
|131320|Lighting errors in newly generated world
|132283|Ponds are generated too dark
|134282|Game crash with "Unexpected error" if display is turned off then on again
|135453|Crash while rendering block entity
|136526|Crash when generating near top of world
|137229|Book corruption when 1.8 world is loaded in 1.13
|137276|Turtles dropping bowls when killed by lightning bolt is hardcoded.
|137300|{{code|ConcurrentModificationException}} thrown when upgrading world
}}
== Videos ==
Videos made by [[slicedlime]]:
{{yt|BnvH0QCPCJQ}}
{{yt|qNzrVz8qhmo}}
== Trivia ==
* The first snapshot of [[Java Edition 1.13]], [[17w43a]], was released in the same week of the year as 18w43a.
* In the [[minecraft.net]] blog post introducing 18w43a, [[Adrian Östergård]] captioned the section describing loom using the phrase "Bröther, may I have some lööm?". This is a reference to the [https://knowyourmeme.com/memes/cats-wanting-fruit-loops cat wanting fruit loops] internet meme.
* 18w43a holds the record as having the most content in one developmental release, adding nearly 3 times as much content as the entirety of [[Java Edition 1.4.2]] did in October 2012.
** The previous record for most content added in one developmental release was held by [[15w31a]] for [[Java Edition 1.9]].
* As with [[18w43b]], 18w43a was released exactly 6 years after the [https://bugs.mojang.com Minecraft issue tracker].
== Gallery ==
Java Edition 18w43a.png|Terrain in this version.
== References ==
{{reflist}}
== Navigation ==
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