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	'''18w01a''' is the twelfth [[Minecraft:snapshot]] for [[Minecraft:Java Edition 1.13]], released on January 3, 2018<ref name=18w01a>{{snap\|18w01a\|January 3, 2018}}</ref>. This is the first snapshot released in 2018.		'''18w01a''' is the twelfth [[Minecraft:snapshot]] for [[Minecraft:Java Edition 1.13]], released on January 3, 2018,<ref name=18w01a>{{snap\|18w01a\|January 3, 2018}}</ref> which fixes bugs. This is the first snapshot released in 2018.

	== Additions ==		== Additions ==

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2026-08-30T11:08:33Z

Sync: updated from Minecraft

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			{{Dangerous version\| Server crashes when an item frame with a map is loaded, and no player has that map in their inventory.
			\|type = hardlock
			\|version = development
			\| edition = java
			}}
	{{Infobox version		{{Infobox version
	\|title=Minecraft 18w01a		\|title=Minecraft 18w01a

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{{Infobox version
|title=Minecraft 18w01a
|edition=Java
|image=18w01a.png
|image2=Java Edition 18w01a.png
|type=Snapshot
|date=January 3, 2018
|parent=1.13
|clienthash=504f07f4a10f295522a57f2b1163298dc4a63103
|jsonhash=b1f57752ac2e0ead0fdd7434140bf2f5088cff40
|serverhash=47a8d2bb4db5b5e3db6b7837c9f0fa17ea660448
|prevparent=1.12.2
|prev=17w50a
|next=18w02a
|nextparent=1.13.1
}}<onlyinclude>

'''18w01a''' is the twelfth [[Minecraft:snapshot]] for [[Minecraft:Java Edition 1.13]], released on January 3, 2018<ref name=18w01a>{{snap|18w01a|January 3, 2018}}</ref>. This is the first snapshot released in 2018.

== Additions ==
=== Command format ===
'''{{cmd|teleport}}'''
* Added <code>facing</code> to the command.
** Syntax: {{cmd|teleport [<targets>] (<location>{{!}}<destination>) facing (<facingEntity>{{!}}<facingLocation>)}}
** Rotates an entity to face either an entity or a location.

'''{{cmd|time}}'''
* Added <code>noon</code> and <code>midnight</code> to {{cmd|time set}}.

=== General ===
'''[[Minecraft:Data pack]]s'''
* Added <code>set_name</code> function to loot tables.
* Functions tagged in <code>minecraft:load</code> now run once after a (re)load.
* Added the new block tag <code>minecraft:anvil</code>.
** Contains <code>minecraft:anvil</code>, <code>minecraft:chipped_anvil</code>, and <code>minecraft:damaged_anvil</code>.

'''[[Minecraft:Death messages]]'''
* Added a death message for when a mob or player causes another player to die in the void.
** "''Player'' didn't want to live in the same world as ''Player/Mob''".

== Changes ==
=== Command format ===
* Changed all custom names (blocks, items, entities, block entities) to translatable text components.
** Removed the <code>LocName</code> tag. Instead of <code>LocName:"gui.toTitle"</code>, use <code>Name:"{\"translate\":\"gui.toTitle\"}"</code>.
* <code>Thrower</code> and <code>Owner</code> nbt keys of [[Minecraft:item entities]] are no longer strings but are instead compounds with two longs named <code>L</code> and <code>M</code>.
* <code>owner</code> nbt keys of [[Minecraft:snowball]]s, [[Minecraft:egg]]s and [[Minecraft:ender pearl]]s are no longer strings but are instead compounds with two longs named <code>L</code> and <code>M</code>.

=== General ===
'''Crashes'''
* Crash reports now list what data packs are enabled.

'''Data generators'''
* Now exposed, the player can get a dump of all blocks/items/commands/etc. from the game without opening it up.

== Fixes ==
{{fixes|fixedin=18w01a|prefix=Minecraft
|;old
|2340|Redstone torches schedule updates when they should not, causing unreliable timings.
|4381|Water places behind tall grass.
|9194|A comparator can lock a repeater, but the repeater doesn't look like it is locked.
|64836|Mobs "control" the minecart they are riding.
|71401|Tab list ignores initial display name of players.
|72943|Game freeze after closing an "Open to LAN" single-player world.
|92255|Singleplayer freezes instead of kicking a player.
|112693|Scoreboard team colors use raw § formatting instead of text components.
|112742|Name of unnamed villager is rendered with TeamColor instead of prefix and suffix of scoreboard team.
|112743|Glowing outline and spectator GUI use prefix color instead of TeamColor.
|115059|Narrator reads scoreboard team color codes in player names.
|121719|Enchantment GUI's book opening and closing animation are rendered at approximately 20fps, even if actual framerate is higher.
|121884|Server->Client custom payload packets can leak resources.
|122053|{{mouse|scroll}}/touchpad scroll amount is ignored.
|123708|clearCustomName() and hasDisplayName() inconsistent.
|;dev
|121331|Client crashes when minimizing game while server disconnect window is displayed.
|121379|Functions, advancements and loot tables allow other filetypes than .mcfunction and .json.
|121719|Enchantment GUI's book opening and closing animation are rendered at approximately 20fps, even if actual framerate is higher.
|121827|Selectors and scoreboards not working for signs (works correctly for books, {{cmd|tellraw}}, and {{cmd|title}}).
|121842|In a LAN world, all OP players can use commands, but the UI and autocompletion are only accessible by the host player.
|121897|Gaps in an animation's used frames throws ArrayIndexOutOfBoundsException.
|121913|Log files are HUGE (5GB) because Brigadier also logs errors continuously.
|121934|execute sub-commands only run (for each entity), if the next sub-command runs at least one command for each entity.
|122057|{{cmd|teleport x_rotation}} and <code>y_rotation</code> being swapped.
|122118|{{cmd|tp @s ~ ~ ~}} acts like an absolute teleport, killing all momentum.
|122188|Vanilla structure files aren't updated yet causing missing/wrong blocks.
|122270|Pushing blocks with connections does not update them.
|122272|Game crashes when I start a new world.
|122409|Players can't open chests under leaves/glowstone/sea lantern/ice/frosted ice.
|122431|'{{cmd|scoreboard players get}}' shows message with '%s' when no score is set.
|122487|Randomized blockstates do not apply full models.
|122493|Boats fall through blocks when slightly intersecting with water.
|122503|{{cmd|title}} or {{cmd|tellraw}} score component with fake players returns "No entity was found".
|122609|'{{cmd|scoreboard players reset * objective}}' does not work.
|122724|Blockstates not working properly with two model options.
|122782|Orange and Yellow Terracotta Animations do not function in 17w48a (1.13 snapshot).
|122828|32768 is specified as the maximum allowed area size for the fill command, but is not allowed.
|122894|Using teleport command without target value in functions does not use original position.
|122897|Overwriting structure containing signs InvalidArgumentException.
|122915|The default block/item tags aren't in the tab-completion list.
|123039|Hitting a key in the creative mode inventory search resets scrollbar.
|123067|Wall-mounted banners/skulls are treated as full blocks.
|123110|Bowl can't be used in furnace as fuel.
|;previous
|123117|Strange lighting by slabs/stairs/grass path/farmland.
|123131|Hopper and hopper minecart item pickup area too small/low.
|123135|Standing on half block/stairs/grass path/farmland gives "cave effect" to sky.
|123138|Placing double-grass on the lower half of a double-grass block removes the upper half.
|123159|Gravity-affected blocks, such as sand, do not fall when the block underneath them is pulled by a piston.
|123162|Placing a grass path under a block makes the block disappear.
|123168|advanced tooltips hide map numbers.
|123183|Cannot eat plantable items when looking at blocks.
|123184|"Pick Block" on empty flower pots does nothing.
|123222|Item frames can be placed below Y{{=}}0.
|123304|"Ticking block entity" NullPointerException game crash 64 pistons in 1 chunk.
|123305|JSON text throws syntax error when JSON is more than 1024 characters long.
|123322|Structures placed by structure blocks do not update connecting blocks on the outside or inside of the structure.
|123331|'{{cmd|execute if/unless score}}' sets the score to 0 if unset.
|123360|{{cmd|teleport}} tries to center-correct the y-axis.
|123388|"{{cmd|execute store}}" on "<code>double</code>" data types uses only '<code>float</code>' rather than '<code>double</code>.' precision in intermediate scale calculation.
|123401|In commands, block states are attempted to be read after the end of the previous value.
|123459|Error when reading pack.mcmeta of data or resource packs shows default string representation.
|123562|Replacing vanilla data (except for tags) simply doesn't work on Apple devices.
|;Private issues
|121804|"{{cmd|publish}}" can be executed from command blocks.<ref name=18w01a/>
}}</onlyinclude>

== Videos ==
{{slicedlime|j8B9LjyJ2Vs}}

== Trivia ==
* Along with [[Minecraft:13w01a]], 18w01a was released on the earliest calendar year out of all snapshots, on January 3.

== References ==
{{reflist}}

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

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Minecraft:Java Edition 18w01a - Revision history

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