Java Edition 21w03a

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 "title": "Minecraft 21w03a",
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 "label": "(link to Edition article, displayed as Edition)"
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 "field": "January 20, 2021",
 "label": "Release date"
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 "field": "(link to Snapshot article, displayed as Snapshot)",
 "label": "(link to Version types article, displayed as Type)"
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 "field": "(link to Java Edition 1.17 article, displayed as 1.17)",
 "label": "Snapshot for"
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 "field": "[https://piston-data.mojang.com/v1/objects/30d492744e5c282331958d2096cc8b39d8ec3145/client.jar Client] ([https://piston-meta.mojang.com/v1/packages/f3549b483a7662bce66846fb3d3faed82465e301/21w03a.json .json])<br />[https://piston-data.mojang.com/v1/objects/dbe81ef81e20e76b1458be822026887fef84c541/server.jar Server]",
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 "field": " <span style=\"font-size:smaller\"><abbr title=\"decimal\">dec</abbr>: </span>1073741835<br /> <span style=\"font-size:smaller\"><abbr title=\"hexadecimal\">hex</abbr>: </span>4000000B",
 "label": "(link to Protocol version article, displayed as Protocol version)"
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 "field": "<span class=\"plainlinks\">[https://en.wikipedia.org/wiki/Java_version_history#Java_SE_8_.28LTS.29 Java SE 8]</span>",
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 "invimages": [],
 "footer": "<table style=\"margin: auto; word-break: break-word;\">\n<tr style=\"background: inherit;\">\n<td style=\"padding: 0.4em\" >[[Java Edition 1.16.5|<span style=\"margin-right:-0.35em\">◄</span>◄  1.16.5]]</td>\n<td style=\"padding: 0.4em\">'''[[Java Edition 1.17|1.17]]'''</td>\n<td style=\"padding: 0.4em\" >[[Java Edition 1.17.1| 1.17.1 <span style=\"margin-right:-0.35em\">►</span>►]]</td>\n</tr>\n<tr style=\"background: inherit;\">\n<td style=\"padding: 0.4em\">\n[[Java Edition 20w51a|◄  20w51a]]\n</td>\n<td style=\"padding: 0.4em\">''' 21w03a'''</td>\n<td style=\"padding: 0.4em\">\n[[Java Edition 21w05a| 21w05a ►]]\n</td>\n</tr>\n</table>"
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21w03a is the sixth snapshot for Java Edition 1.17, released on January 20, 2021, which adds glow squid, glow ink sacs, glow lichen, glow item frames, and fixes bugs.^[1] This is the first snapshot released in 2021.

👁 Image
Glow item frames

• Placeable entities which appear to glow.
• Do not affect the light level, only appearing as if lit up themselves.
• Items placed inside also glow.
• Crafted using an item frame and a glow ink sac.
• Includes application to maps.

👁 Image
Glow lichen

• A naturally occurring light source found rarely in caves, growing on any face of a block.
• Has a light level of 7.
• Obtained with shears, otherwise breaks.
• Does not spread naturally, although bone meal can be used to spread it.
  • It spreads to adjacent spaces horizontally, up to 4.
• Can be waterlogged.
• Unlike vines, it does not pop off when underwater, and is not climbable.
• Up to 6 can be put on the same block space, merging into one block.

👁 Image
Glow ink sacs

• Dropped by glow squid when killed.
• Can be used to craft glow item frames.
• Can be used to make text glow on signs.

Spawn eggs

• 👁 Image
  Glow squid spawn egg

👁 Image
Glow squid

• Originates from the mob with the same name from Minecraft Earth.
• Underwater mob that behaves like a regular squid.
• Does not naturally spawn yet.
• Is attacked by axolotls without provocation.
• Drops glow ink sacs when killed.
• Does not affect the light level, only appearing as if lit up itself.
• Stops glowing for a short time and swims away fast after taking damage.

Dripstone blocks

• Can now be crafted from 4 pointed dripstone.

Signs

• Can now be tinted with glow ink sacs to make the text glow.
  • Glowing signs do not affect the light level, only appearing as if the text itself is illuminated.
  • A new lit block state had been added to indicate whether the sign text is lit up.
  • Regular ink sacs can be used to remove the glowing effect.
  • Now has sounds for being dyed.

Death messages

• Added unique death messages for dying from falling on a stalagmite.
  • "<player> was impaled on a stalagmite" and "<player> was impaled on a stalagmite whilst fighting <entity>".
  • Previously, this death would use the generic fall damage death messages.

Recipe book

• The chiseled polished blackstone crafting recipe is now unlocked by having a polished blackstone slab, instead of polished blackstone.

Subtitles

• Changed Lava drips into cauldron to Lava drips into Cauldron.
• Changed Water drips into cauldron to Water drips into Cauldron.
• Changed Shulker bullet explodes to Shulker Bullet explodes.
• Changed Shulker bullet breaks to Shulker Bullet breaks.

Block models

• Made the vines block model much simpler.

Servers

• Changed the error message for failing to connect to the authentication servers. Now says they are "not reachable" instead of "down for maintenance".

Tags

• Added glow squid to the axolotl_always_hostiles entity type tag.

Obfuscation map

• Changed the license included in the obfuscation map.

World selection

• Added unique warnings for downgrading a world.

Languages

• Removed the following languages due to incomplete translations:
  • Gothic
  • Kabyle
  • Maori
  • Mohawk
  • Nuk
  • Ojibwe
  • Talossan

Customized world

• World height/depth can now be adjusted to a max of Y=-2048 to Y=2031, mountain and cave generation scales accordingly similar to amplified world type.^[2][3]

48 issues fixed

From released versions before 1.17

• MC-89087 – Command block GUI takes a brief time to update (output bar shown when disabled, mode buttons in wrong state).
• MC-89880 – Spawner with weight 0 crashes the game.
• MC-91522 – Shulker rendering position desync and generates ghost shulker when destroying shulker-ridden boat or minecart.
• MC-92349 – Players cannot tempt animals with food while other players are closer to the animal.
• MC-92867 – Setting JSON text value to null throws exceptions and crashes.
• MC-96322 – Shulkers are unable to attack from boat.
• MC-99098 – Shulker open and close hitbox is not updated, when they ride boat, minecart or mobs.
• MC-105344 – Shulkers in boats and minecarts do not sit up if previousely attached to blocks sideways.
• MC-108717 – Shulkers cannot be pushed back.
• MC-111196 – Using a monster spawner to spawn shulkers spawns white shulkers.
• MC-113177 – Shulkers cannot be pushed inside non-solid blocks.
• MC-119051 – Random transparent line in shulker box GUI texture.
• MC-121897 – Gaps in an animation's used frames throws ArrayIndexOutOfBoundsException.
• MC-131564 – Models that have locked uv in blockstates ignore texture rotation.
• MC-139265 – Shulkers do not teleport correctly when going through a portal.
• MC-156109 – Turtles do not follow players in Creative mode holding seagrass.
• MC-161334 – Shulker boxes cannot be opened if next to a shulker mob.
• MC-168900 – Shulkers teleport with original dimension coordinates after passing through portals.
• MC-174216 – Shulkers riding a vehicle sometimes appear in the ground after reopening world.
• MC-174876 – Shulker spawn egg spawns shulker inside soul sand, snow layers, farmland, grass path and honey block.
• MC-183067 – Shulkers can push marker armor stands.
• MC-183884 – Shulkers are afraid of being next to another shulker.
• MC-186172 – Shulkers open into blocks when unable to teleport.
• MC-190677 – Shulkers are notaligned to the grid for a split second after being spawned in.
• MC-193386 – Shulkers spawned attached to the groud attaches themselves to a wall after another shulker is spawned.
• MC-194089 – Shulkers at some Y positions refuse to get a Peek value.
• MC-200195 – Boats do not try dismounting the player on land.
• MC-202202 – Servers are unable to prevent a player from dismounting a vehicle, causing a desync.
• MC-203373 – Shulker bullet subtitles are not capitalized correctly.
• MC-203397 – Ceiling vines rotate when other vines are placed in the same block space.
• MC-208639 – Chiseled Blackstone Recipe unlocks when you get polished blackstone, not polished blackstone slab.
• MC-210791 – Dropping an item on a shulker launches the item off.

From the 1.17 development versions

• MC-203571 – Right-clicking an empty bundle sometimes plays hand animation.
• MC-204337 – Bundle use stat never increases.
• MC-205076 – Game mode selection is ordered differently.
• MC-206118 – "type" in loot table number providers is not optional anymore.
• MC-206510 – Game crashes when trying to shift-click a chest into the inventory of a donkey whose chest is being removed.
• MC-206550 – block.pointed_dripstone.drip_[liquid/cauldron] has no subtitles.
• MC-206923 – Dripstone subtitles are not capitalized properly.
• MC-207250 – Dripstone caves biome name is not properly capitalized.
• MC-207254 – Dripstone caves generate merging dripstones in impossible ways.
• MC-207293 – Dripstone generated in dripstone caves can replace lava sources which looks weird.
• MC-207335 – Mobs cannot spawn in dripstone caves.
• MC-207388 – Issues with chunk rendering when height limit is large.
• MC-207900 – Summoning "dust" or "dust_color_transition" particles kicks nearby players when on a server.
• MC-208336 – "player" sub-predicate of "entity_properties" predicate only passes if game mode is specified.

From the previous development version

• MC-208611 – Shulker boxes and bundles duplicate items when destroyed by two fire blocks simultaneously.
• MC-208666 – Shulker boxes and bundles drop their items twice when thrown into a lava cauldron.

• Bedrock Edition beta 1.16.210.59