Minecraft:Java Edition 21w16a

21w16a is the eighteenth Minecraft:snapshot for Minecraft:Java Edition 1.17, released on April 21, 2021,<ref>Template:Snap</ref> which adds dripstone growth and the ability to grow azalea trees and fixes bugs.

Additions

Gameplay

Minecraft:Pointed dripstone growth

• If a stalactite is hanging from a Minecraft:dripstone block with a water source above, it slowly grows both the stalactite from above and a stalagmite from below.
  • Growth speed is random but very slow; a single growth step can take several in-game days.
• A stalactite only grows up to 7 blocks long.
• A stalactite only causes stalagmite growth if the floor or stalagmite below is within 10 blocks.
• If the stalactite tip is inside water it doesn't drip, and therefore doesn't trigger any growth.
• If the stalagmite tip is inside water or there is a fluid between the two dripstone blocks, it doesn't receive the water drops, and therefore doesn't grow by a dripping stalactite.
  • A stalagmite or stalactite never grows into a fluid.

General

Minecraft:Tags

• Added the moss_replaceable block tag.
  • Contains the #base_stone_overworld tag, the #cave_vines tag, and the #dirt tag.

Minecraft:Language

• Added Russian (Pre-revolutionary) language.
• Added Chinese Traditional (Hong Kong) language.

Experimental

Changes have been made to the official Caves & Cliffs world generation preview data pack, which gives early access to the world generation coming in Minecraft:Java Edition 1.18.

Minecraft:Ore veins

• Large rare snaking collections of Minecraft:ore found underground.
  • Copper mixed with granite is found at and above Y=0; iron mixed with tuff is found below Y=0.

Changes

Blocks

Minecraft:Azalea and Minecraft:flowering azalea

• Can now be fertilized with Minecraft:bone meal to form azalea trees.

Minecraft:Block of raw iron and Minecraft:block of raw gold

• Tweaked the textures.

Minecraft:Emerald ore

• Now attempts to generate 6-24 times per Minecraft:chunk in Minecraft:mountains, instead of 1 time.
• The deepslate variant can now generate naturally.

Minecraft:Infested deepslate

• Can now have random texture rotation like deepslate.

Minecraft:Small dripleaf

• The model was slightly changed.
• The upper leaf is now correctly connected with stem.Template:More info

Minecraft:Grass block, Minecraft:mycelium, Minecraft:moss block

• Grass, tall grass, ferns, tall ferns, sweet berry bushes, saplings, flowers, azaleas, sugar cane, dead bushes, and bamboo can now be placed on these blocks.
• Pumpkins and melons can now grow onto these blocks.
• Endermen can now pick up these blocks.

Items

Minecraft:Raw metal

• Tweaked the texture of raw ores.

Gameplay

Minecraft:Recipe book

• The recipes for stonecutting Minecraft:diorite into polished diorite slabs and stairs now unlocks when the player has diorite as opposed to polished diorite.

General

Minecraft:Statistics

• Renamed the statistic for play time to play_time.
• Included time when game paused for "Time with World Open" (total_world_time).

Resource pack prompt

• Users who previously permanently declined server resource packs are now still shown the pack prompt if the pack is mandatory, instead of being immediately disconnected.

Minecraft:Tags

• Added grass blocks, mycelium, and moss blocks to the dirt block tag.
• Tweaked some tags to no longer unnecessarily mention blocks if they're in the dirt block tag.
• Tweaked the lush_ground_replaceable block tag to call the moss_replaceable tag instead of the lush_plants_replaceable tag, as well as adding gravel and sand.
• Removed the lush_plants_replaceable block tag.

Textures

• Removed the unused rooted_vines_head.png texture.
• Removed stray pixels from the recipe book GUI button.

Experimental

Changes have been made to the official Caves & Cliffs world generation preview data pack, which gives early access to the world generation coming in Minecraft:Java Edition 1.18.

Minecraft:Aquifers

• Aquifers below Y=0 are sometimes made of Minecraft:lava.