Java Edition 20w22a

20w22a is the nineteenth snapshot for Java Edition 1.16, released on May 29, 2020, which adds a piglin dance and fixes a large number of bugs.

Blocks

 * Jigsaw Blocks
 * Added a new "Keep Jigsaws" option that controls whether jigsaw blocks in the resulting structure after using "Generate" will remain jigsaw blocks or be replaced by their "Turns Into" block.
 * Defaults to "ON".

Mobs

 * Piglins
 * Now have a 10% chance to "dance" after killing a hoglin.

Gameplay

 * Death messages
 * Added a new death message for being killed by an entity's wither skull projectile, " was shot by a 's skull".

General

 * Tags
 * Added new block tag.
 * Contains all 8 fence gate types.
 * Added new block tag.
 * Contains the block tag.
 * Blocks in this tag cannot support lanterns or bells on their bottom side even if they would otherwise be able to.

Blocks

 * Bells
 * Now follow the same placement rules as lanterns when being placed on the undersides of blocks. As a result they can now be hung from the bottom of the following blocks:
 * Anvils (all stages)
 * Brewing stands
 * Chains
 * Chests
 * Ender chests
 * End rods (facing up or down)
 * Fences (all types)
 * Flower pots (including potted objects)
 * Glass panes (including stained)
 * Grindstones (ceiling attached)
 * Hoppers (downwards facing)
 * Iron bars
 * Mob heads
 * Pistons (sideways facing extended)
 * Trapped chests
 * Walls (all types)


 * Campfires
 * Now drop food being cooked when put out with a shovel or water bottle.


 * Nylium
 * Now drop netherrack unless broken with Silk Touch, in which case they drop themselves.


 * Smithing tables
 * The hammer in the UI has been shifted to the left slightly, and the text has moved up.


 * Soul campfires
 * Now deal double the damage that normal campfires deal.

Mobs

 * General
 * Players can no longer mount another entity when the crouch key is held down.


 * Bees
 * Now grow up and count down their breeding cool down when inside a beehive.


 * Endermen
 * No longer despawn when holding a block.


 * Villagers
 * Villager workstation logic changes.
 * Villagers no longer try to work at the same workstation.
 * When a workstation is placed, the most experienced nearby villager for that corresponding profession will get the workstation.
 * Villagers now have to walk to and reach the workstation before they can acquire the profession/work there.
 * Villagers will check and make sure their workstation is valid at all times of day as long as they are within 16 blocks of their workstation.
 * The experience bar now accurately reflects how much experience villagers have and need.
 * Clocks and compasses no longer function in the villager trading UI.


 * Witches
 * When a villager that was traded with is struck by lightning, the witch it converts to will no longer despawn.


 * Zombified piglins
 * Now hold their arms forward, similar to zombies.
 * Texture has been tweaked.

World generation

 * Basalt pillars
 * Now end in the top layer of the lava ocean instead of directly above it.


 * Chest loot
 * Is no longer randomized across the same seed.


 * Structures
 * Fossils will no longer overlap desert temples.
 * Intersecting dungeons will no longer replace spawners with cobblestone.
 * Fossils, ocean ruins, and dungeons will no longer overlap end portals.

Gameplay

 * Advancements
 * The advancement "Bee Our Guest" can now be unlocked with both beehives and bee nests, instead of only beehives.

Command format

 * now works with items in the inventory crafting grid.
 * now works with items in the inventory crafting grid.

General

 * Collision
 * Minor optimizations in collision detection.


 * Data packs
 * Slightly changed datapack loading to prevent custom datapacks from crashing.
 * If datapack reload fails, changes will not be applied and the game will continue using previous data
 * Changes to datapack list are stored only after successful reload.
 * If existing datapacks prevent world from loading, the game will give option to load world in safe mode, which loads only vanilla datapack.
 * Added  option for servers to load only with vanilla datapack.
 * Game will now detect any critical datapack issues, such as required tags being missing, and prevent the world from being loaded.


 * Materials
 * Whether or not a block requires a tool is no now longer a property of a material and is now assigned on a block-by-block basis.


 * Pathfinding
 * Cached repeated block type lookups and collisions during pathfinding for increased performance.


 * Predicates
 * Top-level element in predicate file can now be array (all contents will be ed).


 * Rendering
 * Made experimental changes to graphics rendering.
 * Added shader support for accessing the depth buffer.
 * The renderer now uses per-pixel blending layers for some transparent elements.

Trivia

 * 20w22a contains the largest number of bug fixes in a single snapshot, with 105 bugs fixed.