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{{Infobox version
|title=Minecraft 18w06a
|edition=Java
|image=18w06a.png
|image2=Java Edition 18w06a menu.png
|type=Snapshot
|date=February 9, 2018
|parent=1.13
|clienthash=78ed8d3359453614d8f69bd982111e8aa6c8f612
|jsonhash=83670eeb3b4579b6f93d4228b7e2bc1f89475d71
|serverhash=4e47158fd42d966884a7ffb7440b35d86c038049
|prevparent=1.12.2
|prev=18w05a
|next=18w07a
|nextparent=1.13.1
}}<onlyinclude>

'''18w06a''' is the seventeenth [[Minecraft:snapshot]] for [[Minecraft:Java Edition 1.13]], released on February 9, 2018,<ref name=":0">{{snap|18w06a|February 9, 2018}}</ref> which mostly adds two new [[Minecraft:air]] variants, adds new biomes for the End, re-adds {{cmd|enchant}}, adds a furnace recipe book and the rewrite of the world generation system which resulted in the removal of the [[Minecraft:Old Customized|Customized]] world type and fixes bugs.

== Additions ==
=== Blocks ===
'''[[File:Air (shown) JE2.png|32px]] [[Minecraft:Air]]'''
* Added <code>minecraft:cave_air</code> and <code>minecraft:void_air</code>.
* Both have the exact same properties as regular air.
** <code>minecraft:cave_air</code> generates in caves.
** <code>minecraft:void_air</code> is used internally for blocks below or above the world and in unloaded chunks.

=== World generation ===
'''[[Minecraft:Biome]]s'''
* Added <code>minecraft:sky_island_low</code> (The End - Floating Islands), <code>minecraft:sky_island_medium</code> (The End - Medium island), <code>minecraft:sky_island_high</code> (The End - High island), and <code>minecraft:sky_island_barren</code> (The End - Barren island).

=== Command format ===
'''{{cmd|enchant}}'''
* Re-added the command into the game.

'''Entity selectors'''
* Added command suggestions for entity selectors.

=== General ===
'''[[Minecraft:Recipe book]]'''
* Recipe book icon now is a separate file, it's stored in the <code>recipe_button.png</code>.
* Added a recipe book for the furnace.
** Furnace recipes have been moved to JSON files.
*** They use <code>"type": "smelting"</code>.
*** <code>cookingtime</code> is used to determine the time it should take to smelt an item in the furnace.
*** <code>experience</code> is used to determine the amount of experience a player should get when picking the resulting item out of the furnace manually.
*** Fuel is not included and is still hardcoded.
* "Unlocked recipe" toasts now show an icon in the top left to specify whether the unlocked recipe is a crafting or smelting recipe.

=== [[Minecraft:Tag]]s ===
* Added new vanilla block tags:
** <code>minecraft:banners</code>, <code>minecraft:wooden_pressure_plates</code>, <code>minecraft:wooden_slabs</code>, and <code>minecraft:wooden_stairs</code>.
* Added new vanilla item tags:
** <code>minecraft:banners</code>, <code>minecraft:boats</code>, <code>minecraft:wooden_pressure_plates</code>, <code>minecraft:wooden_slabs</code>, and <code>minecraft:wooden_stairs</code>.

== Changes ==
=== Items ===
'''[[Minecraft:Crops]]'''
* Wheat, carrots, potatoes, beetroots, melons, and pumpkins now can grow at night. Previously, they needed at least an [[Minecraft:internal light level]] of 9, but this was changed so that they needed only a sky or block light of the same level.

=== World generation ===
'''General'''
* Rewrote the world generation system.
* Structures previously grouped under "Temple" have their spawning locations changed, this allowed {{cmd|/locate}} to differentiate between the structures.
* In [[Minecraft:the Nether]], vertical air cavities — stretching from bedrock level to as far as Y=35, and filled with [[Minecraft:lava]] from bedrock level to Y=10 – now occur in chains across the bottom of the Nether, often forming extensive ravines.

'''[[Minecraft:Old Customized|Customized]] world type'''
* Removed as a result of the world generation changes.

'''[[Minecraft:Tree]]s'''
* Large [[Minecraft:spruce tree]]s now transform nearby [[Minecraft:grass block]]s into [[Minecraft:podzol]] when they grow.
* Trees occasionally generated upside down.<ref>{{Bug|MC-124897}}</ref>

=== Command format ===
'''General'''
* Whitespaces are now allowed in entity selectors & blockstate arguments.

'''{{cmd|locate}}'''
* Now accepts different structure names for all structures previously grouped under <code>temple</code>.
** <code>desert_pyramid</code>, <code>igloo</code>, <code>jungle_pyramid</code>, and <code>swamp_hut</code>.

== Fixes ==
{{fixes|fixedin=18w06a|prefix=Minecraft
|;old
|29490|1.7+ lighting bug/black spots.
|50640|Big oak tree inconsistency.
|77488|TAB player list sorts player names based on ASCII values instead of alphabetically.
|96929|{{cmd|enchant}} command missing indicator for affected entity and enchanting.
|101232|Big tree generator causes memory leak.
|103023|Village house overlap.
|111341|Plains village generating in desert.
|113577|Mesa (Bryce) biome generates with seed of last world which generated the same biome before.
|124695|Flint and steel in a dispenser loses durability when not igniting.
|;dev
|121633|Tabbing in and out of the game in fullscreen messes up recipe book.
|121641|Impossible selector combinations don't fail to build.
|121644|Recipe book tab sound plays twice.
|121811|NBT path parser might be too lenient.
|121901|Game crashes when there is closing square bracket without opening in command.
|122673|{{cmd|locate}} always returns z{{=}}64.
|123150|Water does not generate obsidian during world generation.
|123482|The 'paintings.json' recipe file does not use the 'minecraft:wool' tag.
|123628|Unexpected behavior when using "execute store success score" with a function.
|123805|Command suggestions ignore characters after an incomplete namespace.
|123888|{{cmd|clear}} on a player with no items dumps raw <code>TextComponent</code>.
|124128|Fishing bobber is missing its translation string.
|124372|Wrong/weird sorting order in tab-completion.
|124424|{{code|minecraft:load}} tag does not run on map load.
|124649|Nether portals can no longer be activated from the side.
|;previous
|124683|Tab suggestion box for entity selector closing square bracket misaligned in certain situations.
|124721|Command syntax help text can be empty for trailing selectors in some cases.
|124727|Tab-completion does not work correctly for tags.
}}</onlyinclude>

== Videos ==
{{slicedlime|2H_zPcb1ZS4}}

== Trivia ==
* Unlike most of the first-of-the-week snapshots, this was released on a Friday instead of Wednesday.

== Gallery ==
<gallery>
Java Edition 18w06a.png|Terrain in this version
</gallery>

== References ==
{{reflist}}

== Navigation ==
{{Navbox Java Edition versions|1.1x}}

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Minecraft:Java Edition 18w06a - Revision history

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