{{Infobox version
|title=Minecraft 20w46a
|image=20w46a.jpg
|image2=Java Edition 20w46a.png
|edition=Java
|type=Snapshot
|date=November 11, 2020
|clienthash=f4c56c2b7218599b78074a500ab2a89a04db5b36
|jsonhash=00287a31ef6a14866a0b328637e60df6419d69bd
|serverhash=373675677cc57b9294a187a4d0ecab6f340d4189
|clientmap=d3687dd62798b403141db1fe7272607c53b6e9f0
|servermap=5de650acd5894cf687a911fb9affb3b294de4dd2
|parent=1.17
|prevparent=1.16.5
|prev=20w45a
|next=20w48a
|nextparent=1.17
}}<onlyinclude>

'''20w46a''' is the second [[snapshot]] for [[Java Edition 1.17]], released on November 11, 2020,<ref>{{snap|20w46a|November 11, 2020}}</ref> which adds [[powder snow]] among other changes.

== Additions ==
=== Blocks ===
; [[File:Powder Snow JE1 BE1.png|32px]] [[Powder snow]]
* [[Entities]] that walk over it sink into it.
* Can be picked up and placed with a [[bucket]].
* [[Leather boots]] can be worn to prevent entities from sinking into powder snow blocks.<!--Tested, works with anything that can have armor items, including mobs that normally don't wear armor, like cows.-->
** [[Player]]s can still [[crouch]] to descend with leather boots. Wearing leather boots also allows powder snow to be "climbed", like [[water]] or [[scaffolding]].
* Entities in powder snow slowly freeze.
** Once frozen, [[damage]] is slowly dealt to the entity.
** Wearing leather [[armor]] is intended to slow the freeze effect, and a full set of leather armor is intended to stop the freeze effect. However, this feature was not implemented properly.<ref>{{bug|MC-205041}}</ref>

=== Items ===
; [[File:Powder Snow Bucket JE1 BE1.png|32px]] [[Powder snow bucket]]
* Using a [[bucket]] on [[powder snow]] creates a powder snow bucket.
* Powder snow buckets can be used to place powder snow.
* Powder snow buckets can also be filled from [[cauldron]]s filled with powder snow.

=== Command format ===
; {{cmd|item}}
* Modifies the [[inventory]] of a [[block]] or [[entity]].
** This command has three forms:
*** <code>/item <target> replace <item stack> [<count>]</code> – same as old <code>/replaceitem</code>.
*** <code>/item <target> modify <modifier></code> – modifies item (without copying). 
*** <code>/item <target> copy <nowiki><source></nowiki> [<modifier>]</code> – copies item for source to target(s), optionally applying modifier.
** Possible sources and targets: <code>entity <selector> <slot></code> or <code>block <x> <y> <z> <slot></code>.
** For example, <code>/item block ~ ~ ~ container.0 copy entity @s enderchest.0</code> copies first item from player's ender chest to first slot of container player is currently standing on.

; [[Item modifier]]s
* Reuse functions syntax of a [[loot table]] to describe item modification in {{cmd|item}} command.
* The function part of loot tables can now be defined as separate [[data pack]] resource in <code>item_modifiers</code> directory.
** Such files can contain a single function (i.e single [[JSON]] object) or an array of functions.

=== Gameplay ===
; [[Loot table]]s
* Rolls, set_damage, and possibly other parameters now require "type:uniform" (or other valid values for "type") when using min-max for numbers. set_count has had the same requirement for a few versions.
* New condition: <code>value_check</code>
** Checks range of value.
** Parameters: 
*** {{nbt|int}}{{nbt|compound|value}} – see "New value providers" section (currently combination of random generators and score).
*** {{nbt|int|range}} – min/max range.
* New function: <code>set_enchantments</code>
** Modifies enchantments on item.
** Parameters:
*** {{nbt|compound|enchantments}} – map of enchantment id to level value (can be score or random number)
*** {{nbt|boolean|add}} – if <code>true</code>, change is relative to current level. If <code>false</code>, level is replaced with current value (default behavior).
* New value providers: <code>score</code>
** Returns scaled scoreboard value.
** Parameters:
*** <code>score</code> – scoreboard name.
*** <code>target</code> – same as <code>target</code> in <code>score</code> predicate.
*** <code>scale</code> – scaling factor (float).

=== General ===
; [[Particles (Java Edition)|Particles]]
* Added a new particle type: <code>snowflake</code>.

; [[Tag]]s
* Added new <code>snow_step_sound_blocks</code> block tag.
** Contains [[snow]] and [[powder snow]].
** Blocks in this tag create snow stepping noises while the [[player]] walks '''in''' them.
* Added new <code>powder_snow_walkable_mobs</code> entity tag.
** Contains [[rabbit]]s, [[endermite]]s, and [[silverfish]].
** [[Entities]] in this tag can walk on top of powder snow.

== Changes ==
=== Blocks ===
; [[Amethyst bud]]
* Can now be obtained using a Silk Touch pickaxe.

; [[Banner]]s
* The unused "base" pattern has been renamed to the "field" pattern and given proper translation strings (its ID is still "base").

; [[Cauldron]]s
* Can now be filled with [[powder snow]] during [[snowfall]].
* Using a [[bucket]] on a cauldron filled with powder snow empties the cauldron and creates a [[powder snow bucket]].
* Can also be filled with powder snow by {{ctrl|using}} a powder snow bucket on it.

; [[Copper block]]
* Crafting recipe has been changed to require only 4 [[copper ingot]]s.
* Putting a copper block in a [[crafting table]] also results in 4 copper ingots.

; [[Dispenser]]
* Can now place [[powder snow]] using a [[powder snow bucket]].
** Also can remove it using a [[bucket]].

; [[Lapis lazuli block]]
* Renamed to "Block of Lapis Lazuli".

; [[Lightning rod]]
* The range of attracting [[lightning]] has been doubled.

; [[Structure block]]
* Default mode of structure blocks is now "Load". "Data" is now hidden by default.
* "Data" can be accessed by clicking the mode button while holding the {{key|Alt}} key.

=== Items ===
; [[Bundle]]
* Now has a GUI when hovering over it.
** Shows contained items in its GUI's [[inventory]] slots when hovering over it.

; [[Pufferfish (item)|Pufferfish]]
* The strength of the [[Poison]] effect has been decreased from IV to II.<ref>{{Bug|MC-197276}}</ref>

; [[Spyglass]]
* The scope [[texture]] is now a glass square with a copper border.

=== World generation ===
; [[Biome]]s
* Biome-specific [[sky]] colors now blend more smoothly.

=== Weather ===
; [[Snowfall]]
* During snowfall, [[cauldron]]s under the sky now slowly fills with [[powder snow]].

=== Command format ===
; {{cmd|replaceitem}}
* Removed {{cmd|replaceitem}} command.
* Replaced with {{cmd|item ... replace}}.

=== Gameplay ===
; [[Death messages]]
* Added death messages for freezing:
** "<player> froze to death".
** "<player> was frozen to death by <entity>".

; [[Loot table]]s
* Can now access [[scoreboard]] values by [[UUID]].
* Loot table values inside random number generators can now be nested.
* Changed condition: <code>score</code>
** <code>entity</code> parameter has now been replaced with <code>target</code>. It can either contain value from old <code>entity</code> field (like <code>this</code>) or be an score holder name in form <code>{"name": "..."</code>}.
* Changed function: <code>set_damage</code>
** This function now has <code>add</code> parameter. If <code>true</code>, change is relative to current damage. If <code>false</code>, damage is replaced with current value (default behavior)
* Changed function: <code>set_count</code>
** This function now has <code>add</code> parameter. If <code>true</code>, change is relative to current item count. If <code>false</code>, item count is replaced with current value (default behavior)
* Changed function: <code>copy_nbt</code>
** <code>source</code> parameter can now be set to <code>{"storage": <namespaced id></code>}, to access command storage.

=== General ===
; [[Data pack]]s
* Data pack version has now been changed to 7 for consistency with the [[resource pack]] version<ref>{{bug|MC-204861}}</ref> and due to the addition of {{cmd|item}} to replace {{cmd|replaceitem}}.

; [[Options]] screen
* Buttons tied to a set of values can now be scrolled through.
* Clicking {{key|Shift}} on a menu button changes it to the previous value.
* The [[debug mode]] can now only be accessed by holding {{key|Alt}} instead of {{key|Shift}} while clicking on the world type button.

; [[Tag]]s
* Changed the <code>cauldrons</code> block tag to include [[powder snow cauldron]]s.

; [[Textures]]
* [[Amethyst shard]]
** The darker pixels are now a bit darker.
* [[Block of amethyst]]
** Has more bright areas.
* [[Budding amethyst]]
** Has more bright areas.
* [[Bundle]]
** Is now a more vibrant, orangey-brown.
* [[Calcite]]
** Texture reworked with the same general layout and color scheme.
* [[Candle]]
** Items now depict two candles of different sizes standing upright side-by-side.
* [[Copper ingot]]
** Textured reworked to be more intensely bright and dark.
* [[Cut copper]]
** Some colors were made slightly darker.
* [[Lightning rod]]
** The whole texture was made slightly darker.
* [[Spyglass]]
** Updated zoom-in overlay.
* [[Tinted glass]]
** Removed the largest "glare" line.

; Translation strings
* The "World Type" string no longer contains a colon (":"). The colon is still visible in-game, however.
* Changed "Use VSync" to "VSync".
* Removed the unused string for enabling VBOs, "Use VBOs".
* Added strings, "Mode", "Type", "Triggering", and "Track output". These are read out by the narrator for buttons in the [[command block]] UI.

== Fixes ==
{{Fixes|fixedin=20w46a
|;old
|2490|TNT animation ends at 80 ticks, ignores fuse length changes.
|53518|Endermen don't attack endermites spawned using spawn eggs or {{cmd|summon}}.
|80468|Inconsistency between block names.
|99189|Client overrides map data of map with id 0 when a new map is created.
|99259|The wither health bar doesn't go up during spawn.
|106690|Servers sends <code>SPacketMaps</code> packets even if the map data did not change.
|110903|Cannot remove horse saddle using {{cmd|replaceitem}}.
|143821|Using an empty map in creative mode can create an additional map with ID 0.
|147729|Crafting via the recipe book can delete items if picking up items while crafting.
|158466|Server Crash (<code>Exception ticking world: ConcurrentModificationException</code>).
|162910|Additional map is created when using an empty map in Creative in a newly created world.
|170659|Loss of precision in <code>entity_scores</code> conditions.
|182954|"block.minecraft.banner.base.<color>" displays raw translation string (is untranslated).
|183771|Gamemode switcher icons in the F3+F4 menu are not centered.
|183917|Min and max are both required in entity_scores condition.
|185605|Kelp generates on top of magma blocks.
|188448|Food pops off of campfire when extinguished.
|189482|LAN World screen buttons are selected in the wrong order when using {{key|Tab}}.
|195461|The upper part of potted cactus/bamboo texture is not visible if there is a half block above it.
|195827|<code>datapackFailure.title</code> line in <samp>en_us.json</samp> file has double spaces between the translation string and the equivalent text.
|196425|"Off" is not completely capitalized for the Distortion Effects and FOV Effects sliders, which is inconsistent with other sliders.
|197276|Pufferfish gives Poison IV instead of II.
|198514|Creating a superflat world with nothing but air crashes the game.
|198535|<code>time_check</code> predicate condition requires both <code>min</code> and <code>max</code> value.
|198725|Crash when clicking "Presets" after setting the superflat preset with a non-existent biome.
|199988|When accessing a UI of a structure block from {{cmd|setblock}} the texture changes from data to save.
|;previous
|203551|Putting lava in a cauldron makes the water bucket sound.
|203562|Shulker boxes animate when shulkers do.
|203574|Decorations don't generate in the Nether.
|203621|Unable to pick up experience orbs.
|203622|Arm when using spyglass aligned wrong on Multiplayer.
|203631|Amethyst buds do not drop themselves with silk touch.
|203643|Command modified bundle has a bigger progress bar than a slot.
|203644|Cats & ocelots are missing one of their legs.
|203646|Some mobs won't despawn when switched to peaceful.
|203648|The armor stand model floats above its base.
|203746|Levitation particles go on forever when killed by a levitating creeper.
|203880|Floating creepers/creeper with no AI.
|204054|When using the spyglass with a shield on your secondary hand, the shield appears on the zoom.
|204221|Calcite has transparent texture but is opaque in-game.
|204861|Datapack format potential conflicts.
}}</onlyinclude>

== Video ==
{{slicedlime|jMBqqdjkNAw}}

== References ==
{{Reflist}}

== Navigation ==
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