Java Edition 20w15a

20w15a is the eleventh snapshot for Java Edition 1.16, released on April 8, 2020, which adds a new nether biome, new music tracks, new blocks and other changes and fixes.

Blocks

 * Blackstone JE1.png Blackstone
 * Generates in Basalt Delta.
 * Can be used in place of stone to craft furnaces and stone tools.
 * Is not blast resistant.
 * Has a slab, stair, and wall variant


 * Blackstone Slab


 * Blackstone Stairs


 * Blackstone Wall


 * Polished Blackstone


 * Crafted with 4 Blackstone
 * Has a chiseled, slab, stair, and wall variant
 * Can be crafted into buttons and pressure plates


 * Polished Blackstone Bricks.png Polished Blackstone Bricks


 * Crafted with 4 Polished Blackstone
 * Has a cracked, slab, stair, and wall variant.


 * Polished Blackstone Button.png Polished Blackstone Button


 * Polished Blackstone Pressure Plate


 * Polished Blackstone Slab


 * Polished Blackstone Stairs


 * Polished Blackstone Wall


 * Polished Blackstone Brick Slab


 * Polished Blackstone Brick Stairs


 * Polished Blackstone Brick Wall


 * Cracked Polished Blackstone Bricks.png Cracked Polished Blackstone Bricks


 * Soul Campfires


 * Have a blue flame instead of orange.


 * Chiseled Nether Bricks
 * New variant of Nether Bricks.


 * Cracked Nether Bricks
 * New variant of Nether Bricks.


 * Gilded Blackstone.pngd Blackstone
 * Has a chance of dropping 2-5 gold nuggets.
 * Quartz Bricks

Items

 * Piglin Banner Pattern
 * New pattern for banners, the Piglin
 * Use in Loom to apply Piglin pattern to banner

Biomes

 * Basalt Deltas
 * A volcanic biome in The Nether.
 * Filled with pillars of Basalt and large areas of Blackstone

General

 * Accessibility
 * Accessibility improvements


 * Music
 * Added 3 new soundtracks to the Nether.


 * Tags
 * Added block tag.
 * Contains campfires and soul campfires.
 * Bees, parrots, and turtles will view blocks in this tag as dealing fire damage and pathfind accordingly.
 * Campfires use this tag to determine if they are lit or not.
 * Flint and steel uses this tag to determine if it can light campfires.
 * Added block tag.
 * Contains:
 * container blocks (chests, trapped chests, ender chests, barrels, the  block tag)
 * and gold blocks (blocks of gold, gilded blackstone, and the  block tag)
 * Piglins will become hostile towards a player that destroys a block in this tag.
 * Added item tag.
 * Contains cobblestone and blackstone.
 * Items in this tag can be used to craft furnaces and will unlock the recipe in the recipe book.
 * Added item tag.
 * Contains cobblestone and blackstone.
 * Items in this tag can be used to craft stone tools and will unlock the recipes in the recipe book.
 * Added item tag.
 * Parallels the block tag.
 * Contains soul sand and soul soil.
 * Items in this tag can be used to craft soul fire campfires and torches and will unlock the recipes in the recipe book.

Mobs

 * Striders
 * Now turn purple outside of lava.
 * No longer spawn in closed off lava pockets.
 * Baby striders ride on top of bigger striders.


 * Zoglins
 * Are now undead.


 * Magma Cubes
 * Spawn commonly in basalt deltas.

Blocks

 * Banner Patterns
 * Piglin pattern
 * Looks like the snout of a Piglin, two vertical lines inside a centered rectangle


 * Dispensers


 * Dispensers can now saddle pigs and horses
 * Dispensers can now put horse armor on horses
 * Dispensers can now put carpets on llamas
 * Dispensers can now put chests on llamas, donkeys and mules
 * Dispensers can now shear a Mooshroom
 * Dispensers can shear snow golems


 * Furnaces


 * Furnaces can now be crafted with Blackstone


 * Soul fire torches
 * Can now be crafted with soul sand.


 * Walls


 * Now connects to iron bars and glass panes

Items

 * Stone Axes, Hoes, Pickaxes, Shovels, and Swords
 * Can now be crafted with blackstone.


 * Fungi, Nether Sprouts, Roots, Twisting Vines, Nether Wart Blocks, Warped Wart Blocks, and Weeping Vines
 * Can now be composted

General

 * Tags
 * Added polished blackstone, and (where applicable) blackstone blocks and items to the block and item tags.
 * Added soul campfires to the block tag.
 * Added the  block tag and removed lanterns and soul fire lanterns from the  block tag.


 * Textures
 * Removed an unused fin from the strider texture.

Trivia

 * The official changelog says that walls now connects to sea pickles, although this is false.