Java Edition 1.16

1.16 is an upcoming major update to Java Edition that overhauls the Nether, set to release sometime in 2020. This update was announced at MINECON Live 2019. The update does not include the announced features for the mountains biome.

Blocks

 * Ancient debris


 * Can be found throughout the Nether at any altitude, though it is much more common at lower levels.
 * Can be refined into a netherite scrap by smelting in a furnace or blast furnace.
 * Same blast resistance as obsidian, but is movable with pistons.
 * Inventory item floats on lava.
 * Cannot burn in lava or fire.
 * A diamond pickaxe or better is required to mine it.
 * Always spawns covered by lava and/or blocks on all sides.


 * Basalt


 * Makes up basalt pillars.
 * Generates in soul sand valleys.
 * Can be placed directionally, similarly to logs.
 * Has a polished variant.
 * Generates whenever lava flows over soul soil next to blue ice.


 * Block of netherite


 * Can be crafted with 9 netherite ingots.
 * Can be used to power beacons.
 * Inventory item floats on lava.
 * Cannot burn in lava or fire.
 * Same blast resistance as obsidian, but is movable with pistons.


 * Crimson and warped fungus


 * Generate in crimson and warped forests.
 * Can be placed on flower pots, dirt, coarse dirt, farmland, podzol, nylium, soul soil, and grass blocks.
 * Bone meal can be used on fungi to grow it into the respective huge fungi when placed on the same type of nylium.
 * Unlike mushrooms, fungi cannot spread.


 * Crimson and warped nylium


 * Resemble grass blocks.
 * Can be spread to netherrack by using bonemeal on a netherrack block next to a nylium block.
 * Can be right-clicked with bone meal to generate roots, sprouts, and fungus.


 * Crimson and warped planks


 * Does not burn.
 * Crafted from the respective stem.
 * Can be used to craft respective slabs, stairs, fences, fence gates, pressure plates, signs, buttons, doors and trapdoors.
 * Cannot be used as furnace fuel, since they do not burn.


 * Crimson and warped roots


 * Foliage that generates in both crimson and warped forest biomes, as well as soul sand valleys.
 * Can be placed into flower pots.


 * Crimson and warped stems


 * Blocks that comprise the trunks of huge fungi.
 * Have animated textures.
 * Have a top texture similar to regular log blocks.
 * Can be placed directionally, similarly to logs.
 * Do not burn.
 * Have respective stripped variants.


 * Crying obsidian


 * Used to craft respawn anchors.
 * Can be obtained by bartering with piglins.
 * Has a light level of 10.
 * Emits purple particles, resembling tears.
 * Has the same blast resistance as obsidian.
 * Programmer Art texture is the old texture from 2011.


 * Hyphae


 * A variant of stems with the bark on all 6 sides.
 * Also has a stripped variant.


 * Lodestone


 * Crafted with a netherite ingot and chiseled stone bricks.
 * Using a compass on one creates lodestone compass which points to that Lodestone block.


 * Nether Gold Ore


 * A variant of gold ore found in the Nether.
 * Drops 2–6 gold nuggets when mined.
 * This is affected by Fortune the same way other ores are, for a maximum possible drop of 24 golden nuggets with Fortune III.
 * Nether gold ore, obtained with Silk Touch, can still be smelted into a single gold ingot.
 * Can be mined with any level of pickaxe.
 * Also drops experience orbs.


 * Nether sprouts


 * Foliage that generates in warped forests.
 * Resembles [:en:Grass grass] in the Overworld.


 * Polished basalt


 * Obtained through the stonecutter using basalt.
 * Purely decorative and directional, like normal basalt.


 * Respawn anchor


 * Crafted with 6 crying obsidian and 3 glowstone.
 * Can be used to set spawn points in the Nether, using glowstone as charges.
 * A maximum of 4 charges can be set at once, and one charge is depleted with each respawn.
 * Comparators can track how much it is charged.
 * Emits a slight amount of light, which gets stronger for each charge added.
 * Using it in the End or Overworld causes it to explode and set fire to surrounding blocks similar to beds in the nether/end.
 * Can be charged using a dispenser.
 * The portal animation on the top texture is inverted from the nether portal texture.


 * Shroomlight


 * Emits a light level of 15, similarly to glowstone.
 * Can be mined with any tool, but hoes are the most effective.
 * Generate as a part of huge fungi.


 * Soul fire


 * Blue variant of fire.
 * Fire lit on soul soil or soul sand turns into soul fire regardless of dimension.
 * Burns forever, similarly to netherrack and magma blocks.
 * Generates naturally in the soul sand valley biome in the Nether.
 * Deals damage at a rate of per second as opposed to the  per second of regular fire.
 * Does not extinguish when in the rain.


 * Soul fire lantern


 * Gives off a light level of 10.
 * Crafted similarly to a normal lantern, using a soul fire torch instead of a normal torch.
 * Has an animated texture, just like it's normal counterpart.
 * Same light level of a soul fire torch, but less light then that of normal lantern.


 * Soul fire torch


 * Gives off a light level of 10.
 * Crafted similarly to a normal torch, with soul soil being placed under the stick.
 * Gives off a light level less than a normal torch.


 * Soul soil


 * Generates in the soul sand valley, alongside conventional soul sand.
 * Fire lit on soul soil is blue, and is called soul fire.
 * The player does not sink and is not slowed when walking in soul soil.
 * Considered a full block, unlike soul sand.
 * Can be used to summon the wither.


 * Target


 * Redstone component that can be activated by shooting projectiles into it.
 * Signal is stronger depending on how close the projectile is to the center of the block. The signal strength goes up to 15.
 * Can be crafted using a hay block and 4 redstone dust pieces.
 * Can be mined with any tool, but hoes are the most effective.
 * Does not need a comparator to send a signal strength.


 * Twisting vines


 * Generates in the warped forest.
 * Is placed on the top of a block and grows upward.
 * Can be climbed, like normal vines.
 * Can be bonemealed.


 * Warped wart block


 * A variation of the nether wart block, but cannot be crafted.
 * Generates as a part of huge warped fungi. Sometimes generates in the ground replacing the warped nylium in warped forest biome.


 * Weeping vines


 * Generates in the crimson forest.
 * Is placed on the bottom of a block and grows downward.
 * Can be climbed, like other vines.
 * Can be bonemealed.



Items

 * Netherite armor


 * Upgraded using a smithing table with a netherite ingot and the respective diamond item.
 * Does not burn in lava, as a dropped item or when worn (players equipping netherite armor, however, can still take burning damage).
 * Floats in lava.
 * Tougher than diamond armor.
 * Has higher durability and enchantability than diamond, but not higher than gold.


 * Netherite axe, hoe, pickaxe, shovel, and sword


 * Upgraded using a smithing table with a netherite ingot and the respective diamond item.
 * Does not burn in lava.
 * Floats in lava.
 * Has higher durability, mining level, breaking multiplier, and enchantability than diamond, but not higher than gold.
 * All items, except the hoe, deal 1 more damage than their diamond counterparts.


 * Netherite ingot


 * Created with 4 gold ingots and 4 netherite scraps.
 * Can be used to upgrade diamond tools and armor in a smithing table.
 * Floats in lava.
 * Cannot burn in lava.


 * Netherite scrap


 * Created by smelting ancient debris in a furnace or blast furnace.
 * Used to create netherite ingots.
 * Floats in lava.
 * Cannot burn in lava.


 * Lodestone Compass


 * Entering another dimension than the one containing the right-clicked lodestone will cause the compass to shake uncontrollably.
 * Created by right-clicking a lodestone with a compass.
 * Will point towards that lodestone.
 * Right-clicking with stacked compasses will turn all compasses into lodestone compasses.
 * Will keep them stacked.


 * Spawn eggs


 * Added hoglin, piglin, and strider spawn eggs.


 * Warped Fungus on a Stick


 * Crafted with a fishing rod and warped fungus.
 * Can be used to control striders in the same way as a carrot on a stick.
 * Right-clicking while riding a strider will temporarily boost its speed, similarly to riding pigs.

Mobs

 * Hoglins


 * Spawn in crimson forests.
 * Are a hostile mob.
 * Drop raw porkchop and occasionally leather.
 * Have an adult and baby variant.
 * Can be bred with crimson fungi.
 * Are hunted by adult piglins.
 * Baby piglins are not hunted and do not hunt hoglins.
 * Avoid placed warped fungi.
 * Baby variants are occasionally ridden by baby piglins.
 * Up to 3 baby piglins can ride on one baby hoglin.


 * Piglins


 * Spawn in crimson forests and nether wastes biomes.
 * Randomly spawns with golden sword or crossbow.
 * Adults are hostile; babies are passive.
 * Will not attack players wearing at least one piece of golden armor.
 * Adult piglins turn aggressive when a player is mining blocks of gold or opening chests, even if they are wearing gold armor.
 * The player can barter with them by right-clicking with golden ingots or drop them on the ground, which makes them drop at least one item or block.
 * Common barters ($40/417$ chance or about 9.59%): 4-16 soul sand, 1-5 fire charge, 8–16 gravel, 4–10 leather, 4–16 nether brick, 1 obsidian, or 1–3 crying obsidian.
 * Uncommon barters ($20/417$ chance or about 4.80%): 8–16 nether quartz, 5–12 glowstone dust, 2–6 magma cream, 4–8 ender pearl, or 8–24 string.
 * Rare barters ($10/417$ chance or about 2.40%): 9-36 iron nugget, 1 potion or 1  splash potion.
 * Very rare barter ($5/417$ chance or about 1.20%): 1 Iron Boots with Soul Speed.
 * Extremely rare barters ($1/417$ chance or about 0.24%): 1 netherite hoe, or 1 Enchanted Book with Soul Speed.
 * Attack adult hoglins.
 * Baby piglins do not attack and adult piglins will not attack baby hoglins.
 * Baby piglins ride on the back of baby hoglins.
 * Up to 3 baby piglins can ride on the back of baby hoglins.
 * Adults attack wither skeletons.
 * Avoid soul fire, soul fire torches, soul fire lanterns, and zombie pigmen.
 * Can spawn with golden armor.
 * Will convert to a zombified piglin when in the Overworld.
 * Have an  data value that prevents them from zombifying in the Overworld.


 * Strider


 * Spawns in lava oceans and lakes in the Nether.
 * Are a passive mob.
 * Drops 2-5 string.
 * Can be saddled and controlled with warped fungus on a stick.
 * Moves in and out of lava.
 * Shivers when out of lava.
 * Moves significantly slower out of lava.
 * Is damaged by water and rain.
 * Has a baby variant.
 * Can be bred using warped fungus.
 * Can spawn with zombified piglins riding them.
 * Can spawn with baby striders riding them.

World generation

 * Biomes


 * Crimson forest
 * A dense forest with huge crimson fungi. Nether wart blocks and fungi are found in patches on the ground and weeping vines are found under the trees and nether wart stalactites. Fog effects are very similar to the (known now as) Nether Wastes biome.
 * Zombified piglins, piglins and hoglins may spawn here.
 * Soul sand valley
 * A vast grotto composed of uncovered nether fossils, soul sand, soul soil, large pillars made of basalt, blue fog, and soul fire.
 * Skeletons, ghasts, and endermen may spawn here.
 * Warped forest
 * A blue color variation of the crimson forest, but with somewhat different vegetation and blue particles and purple fog effects.
 * Only endermen may spawn here.


 * Structures


 * Basalt pillar
 * Floor to ceiling pillars of basalt that generate in soul sand valleys.


 * Huge crimson fungi and huge warped fungi
 * New structure resembling trees found in crimson and warped forests, respectively. Resembles trees in Overworld.
 * Made of crimson and warped stem blocks as well as red nether wart blocks and warped wart blocks. Resembles leaves in Overworld.
 * Can be grown from their respective fungi.


 * Nether fossils
 * New fossil structures have been added for the soul sand valley.
 * These fossils are different from the overworld fossils and generate with random pieces of basalt instead of coal ore.

Command format



 * Used to locate specific biomes.

Gameplay

 * Advancements


 * Added new "Bullseye" advancement.
 * To complete this advancement, the player has to shoot a projectile into the center of one face of a target block.


 * Enchanting


 * Added Soul Speed enchantment.
 * A new treasure enchantment only obtainable via bartering with piglins.
 * Only available on boots.
 * Can be applied to leather, iron, gold, diamond, or netherite boots.
 * Allows faster walking on soul sand and soul soil.
 * There is a 4% chance that the durability of the boots goes down for each soul sand or soul soil block stepped on.
 * Cannot be obtained from enchanting tables, fishing, chest loot, or trading.


 * Sounds


 * New unique block sounds for most of the newly added blocks have been added.
 * Some blocks already in the game such as netherrack or nether bricks sounds have been changed.

General

 * Ambience


 * Added 95 ambient sounds to the Nether.
 * Different sounds play in each Nether biome.


 * Particles


 * Added particles.
 * Added three particles for crying obsidian:.
 * Added a new particle type:.
 * Used when walking on soul sand or soul soil when wearing boots with the new Soul Speed enchantment.
 * Referred to as "Soul escapes" by the subtitles.


 * Tags


 * Added block tag.
 * Contains block of iron, block of gold, block of diamond, block of emerald, and block of netherite.
 * Controls what blocks can be used to build a beacon base.
 * Added item tag.
 * Contains iron ingot, gold ingot, diamond, emerald and netherite ingot.
 * Controls what items can be used as payment in a beacon's GUI.
 * Added block tag.
 * Includes ladders, vines, scaffolding, weeping vines and twisting vines.
 * Used in mob pathfinding and to determine what blocks the player can climb.
 * Added block and item tags.
 * Contains crimson stem, stripped crimson stem, crimson hyphae and stripped crimson hyphae.
 * Added block tag.
 * Contains fire and soul fire.
 * Controls what blocks can burn entities.
 * Added block and item tag.
 * Contains gold ore and nether gold ore.
 * Many recipes use this tag.
 * Added block tag.
 * Contains warped fungus.
 * Hoglins will avoid blocks in this tag.
 * Added entity tag.
 * Includes the arrows tag, snowballs, fireballs, small fireballs, eggs, tridents, dragon fireballs, and wither skulls.
 * Used to determine what entities will break chorus fruit when hit.
 * Added block tag.
 * Contains crimson nylium and warped nylium.
 * Added block and item tag.
 * Contains soul fire, soul fire torches, and soul fire lanterns.
 * Piglins will avoid, and will not attempt to pick up, blocks in this tag.
 * Added block tag.
 * Contains soul sand and soul soil.
 * Determines what blocks can support soul fire.
 * Added block tag.
 * Contains soul sand and soul soil.
 * The Soul Speed enchantment uses this tag to test for which blocks will increase speed.
 * Added block tag.
 * Contains lantern, soul fire lantern, torch, soul fire torch, redstone torch, and tripwire.
 * Controls what non-solid blocks can transform walls into their pillared block state.
 * Added block and item tags.
 * Contains warped stem, stripped warped stem, warped hyphae and stripped warped hyphae.
 * Added block tag.
 * Contains nether wart block and warped wart block.
 * Added block tag.
 * Contains soul sand and soul soil.
 * Controls what blocks can be used to build a wither.


 * Text


 * Added text which was missing for a death message and was displaying a raw translation string - what it says exactly is unknown.


 * Textures


 * Added the zombified piglin entity texture.
 * Added the leather, chainmail, iron, golden, diamond and netherite helmet textures used for piglins.

Blocks

 * Bamboo saplings


 * Renamed to "Bamboo Shoot".


 * Beacons


 * Netherite blocks can be used as the base of a beacon.
 * Netherite ingots can be used as fuel for a beacon.


 * Bells


 * Will now ring when hit by any projectile.


 * Bone blocks


 * Generate as part of nether fossils in soul sand valleys.
 * Now have their own sound, instead of using the stone sound.


 * Campfires


 * Will now ignite when hit by any burning projectile.
 * Can now be crafted using crimson and warped planks.


 * Fire


 * Now has a proper hitbox ($1/16$ blocks).
 * Cannot be put out by swords or tridents in Creative mode, akin to other blocks, and can be modified via the debug stick.
 * Now has loot tables.


 * Flower pots


 * Has a bottom texture when empty.


 * Gravel and soul sand


 * Generate in the new soul sand valley biomes.

Jigsaw block


 * Jigsaw can now have one of 12 orientations
 * Added new property Joint type to describe if attached piece can be rotated (rollable) or not (aligned)
 * NBT field target_pool has been renamed to pool
 * attachement_type has been split into name (on parent block) and target (on child block).

Kelp


 * Can now be bonemealed.


 * Lava


 * Now pushes entities.


 * Netherrack


 * Using bone meal on netherrack adjacent to nylium converts it into nylium.
 * If two nylium blocks of different types are present, it chooses the type at random based on how many blocks of each type are around it.


 * Nether wart blocks


 * Generate as a part of huge crimson fungi. Sometimes generates in the ground replacing the crimson nylium in the crimson forest biome.
 * Texture changed from Nether Wart Block JE2.png to Nether Wart Block JE3 BE2.png.
 * Changed the texture to match the texture $$.


 * Observers and redstone blocks


 * Now allow placing of ladders and tripwire hooks.


 * Pistons and sticky pistons


 * Hardness has been increased to 1.5.
 * Pickaxes are now more effective on pistons.
 * Pistons can now support non-solid blocks on its top face without them popping off when the piston retracts. (torches, levers, buttons, etc.)


 * Purpur pillar


 * Changed the top texture to match the texture $$.


 * Redstone dust


 * Now has a bottom texture.


 * Smithing tables


 * Added functionality: it is used to upgrade diamond items into Netherite versions.
 * Enchantments on the diamond item are preserved when upgrading into Netherite.
 * GUI is expected to change, as the interface seems a little bare bones.

Smoker


 * Can now be crafted using crimson and warped planks.


 * Smooth quartz


 * Renamed to "smooth quartz block".


 * Snow


 * Doors, rails, buttons, torches, pressure plates and redstone can now be placed on a full-block of snow layers.


 * Soul sand


 * Soul sand with a rail on top will no longer slow-down minecarts.
 * Doors, rails, buttons, torches, pressure plates and redstone can now be placed on it.
 * Walking/running speed on soul sand now can be sped up if wearing Soul Speed boots.


 * TNT


 * Will now ignite when hit by any burning projectile.


 * Vines


 * Now plays a sound when climbed.


 * Walls


 * Walls in the middle of a row have longer pillars when stacked vertically.
 * Block state now uses for  directional values.

Items

 * Bone meal


 * Can now be used to grow kelp, weeping vines, and twisting vines.
 * Fungus, roots, and nether sprouts will grow on nylium if bone meal is used on a nylium block.


 * Clay


 * Renamed to "clay ball".


 * Diamond axe, diamond boots, diamond helmet, diamond hoe, diamond leggings, diamond pickaxe, diamond shovel, diamond sword, golden hoe, golden pickaxe, wooden hoe, and wooden pickaxe


 * Changed their textures slightly.


 * Hoes


 * Can now be enchanted with Efficiency, Fortune and Silk Touch.
 * Now mine sponges, wet sponges, dried kelp blocks, nether wart blocks, targets, shroomlights, and hay bales faster than other tools.
 * Each tier has different speed at which hoes mine blocks they are effective against.


 * Spawn eggs


 * Using a spawn egg on a mob that doesn't have a baby variant now spawns an adult of that mob type.

Mobs

 * Bees


 * The maximum distance a bee can wander away from its home hive when randomly wandering has been reduced to around 22 blocks.


 * Endermen


 * Now spawn in soul sand valleys and warped forests.
 * Can now pick up nylium, roots, and fungi variants.
 * No longer pick up netherrack.


 * Fish


 * Now despawn when they are further than 64 blocks away from the closest player.
 * Does not apply to fish placed by the player or nametagged.


 * Ghasts


 * Sounds are now heard at a shorter range.
 * Now spawn in soul sand valleys.


 * Parrot


 * Parrots imitate hostile mobs less often.
 * Parrots do not randomly imitate hostile mobs when gamemode is on peaceful.


 * Skeletons


 * Now spawn in soul sand valleys.


 * Skeleton horses and zombie horses


 * Can now be leashed.

Villager


 * Farmer villagers will now put excess seeds in their composter.
 * Will use the bone meal received from the composter to grow crops.
 * Farmers can now share excess wheat to other farmers, allowing them to make bread.


 * Wither


 * Can be summoned using soul soil as the base.


 * Zombie pigmen


 * Now spawn in crimson forests.
 * Renamed to "Zombified Piglins", and given a new model and texture.

Non-mob entities

 * Item frames


 * Have two new data tags:
 * – makes item frame invisible (item inside frame remains visible).
 * – prevents item frame from being broken and the item inside from being removed (it does not prevent item rotation).


 * Minecart


 * Now checks dismount position height against entity height.

World generation

 * Biomes


 * Biomes in the Nether may now differ based on altitude.


 * Ceiling


 * Alongside mushrooms, huge crimson and warped fungi can generate over y=128 in the Nether.


 * Nether biome


 * The old "Nether" biome is now called "Nether wastes".


 * Structures


 * Shipwrecks and ocean ruins are now less common.

Command format

 * The message shown when running an unknown/incomplete command has changed.




 * Can now be used to locate Nether fossils.




 * Now supports being run in any dimension.

Gameplay

 * Advancements


 * Piglins and hoglins are now required for "Monster Hunter" and "Monsters Hunted" advancements.
 * Hoglins are now required for "Two by Two".
 * Striders can be used to obtain "The Parrots and the Bats".


 * Ambience


 * New mood detection algorithm for cave sounds.
 * Aims to make ambient cave sounds play at more appropriate moments.
 * Mood increases the longer a player remains underground.
 * Mood increases the longer a player remains without or in low sky light or block light.
 * Mood decreases and eventually resets the longer a player is neither underground nor in the absence of light.
 * The player can check the percentage of the mood in the sounds info section in the debug screen.
 * When the mood percentage reaches 100%, an ambient cave sound will play.


 * Fishing


 * When fishing, treasure loot can now only be obtained by fishing in open waters.
 * A fishing location is considered to be open water if the following conditions are met:
 * There is at least a 5×1×5 area of water beneath the bobber and a 5×2×5 area of air above (for a combined 5×3×5 free area required).
 * Waterlogged blocks that have no collision, such as signs and coral count as water. However, bubble columns do not.


 * Knockback resistance


 * Is now a scale of the amount of knockback taken instead of a probability to take no knockback.


 * Patrols


 * Patrols no longer spawn when the player is close to any intact village.


 * Recipe book


 * The cartography table recipe now unlocks with paper instead of string.
 * Stained glass pane recipes now only unlock when the player has the same color of stained glass in their inventory.


 * Sounds


 * Updated block sounds for bone blocks, netherrack, soul sand, nether wart blocks, nether bricks (and variants), and nether quartz ore.
 * and sounds are now part of the "ambient/environment" sound category adjustable in options.
 * Shearing sound category was changed from "friendly creatures" to "players" for players using shears and "blocks" for dispensers using shears.


 * Spawn


 * Players can reset their spawn point using a bed when hostile mobs are near, although players still cannot sleep when hostile mobs are near.

General

 * Chat messages


 * Changed "Your home bed was missing or obstructed" to "You have no home bed or respawn anchor, or it was obstructed".


 * client.jar


 * Removed Realms code from the client, though its assets remain.


 * Debug menu


 * When outside the world's vertical area, the debug menu no longer lists 'minecraft:the_void' as the biome.
 * Instead, it simply hides the biome information.


 * Loot Tables


 * Entity Predicate
 * Added sub-predicate.
 * Check properties of the fishing hook.
 * parameter matches whether the fishing location is open water fishing or not.
 * Can be set to "false" in game files to make AFK fishing farms work again. This will remove the feature of obtaining loot from normal waters.
 * Can be set to "false" in game files to make AFK fishing farms work again. This will remove the feature of obtaining loot from normal waters.


 * Materials


 * Added new nether wood material.
 * Uses the wood material color.
 * Uses default properties.


 * Models


 * All "block states" files have improved spacing, and now define the namespace when referring to the model.
 * All model files now define the namespace when referring to a different model.


 * Particles


 * [[File:Glint.png]] Bone meal particles
 * Now use 64-bit floats for spawning, not 32-bit.
 * This means that using bone meal at high distances from the world origin (notably greater than 17 million) will cause the particles to appear in expected places, and not far away from the target.


 * Realms


 * Removed translation strings of:


 * Rendering


 * Improved entity shadows to the ground.


 * Tags


 * Added crimson and warped wooden items to the block tags.
 * Added crimson and warped wooden items to the item tags.
 * Added potted crimson fungus, warped fungus, crimson roots, and warped roots to the block tag.
 * Added crying obsidian to the block tag.
 * Updated block tag.
 * Added fungi, roots, and nylium variants.
 * Removed netherrack variant.
 * The block and item tags now use the respective  tag.


 * The Nether


 * Changed the ambient lighting in the Nether, it is now much darker.


 * UUIDs


 * UUIDs of the owners of projectiles, such as arrows or snowballs, are now stored as an array of four integers. All UUIDs will be stored in this format in the future.
 * UUIDs stored in NBT are also represented as an array of four integers.
 * Example:
 * Renamed a couple of fields:
 * of tamed animals, area effect clouds, evoker fangs and projectiles is now simply.
 * of foxes is now.
 * of conduits is now.

Mobs

 * More mobs in general will be added.

World generation

 * Bastions


 * Fortifications built by piglins that are found in the Nether.

Unconfirmed features
These features were mentioned during the development of Java Edition 1.16 or earlier, or during MINECON Live 2019, but have not been confirmed to be added in this update.

Blocks

 * Beehives


 * An in-game mechanism to see how many bees are in a hive may be added.


 * Fletching tables


 * May get functionality. It was mentioned during the development of Village & Pillage that it would be added in "...the next major themed update..."
 * As smithing tables received functionality in 20w10a, fletching tables might also receive functionality.

Mobs

 * Pigs


 * The feature of pigs transforming to zombified piglins when struck by lightning may be removed.

World generation

 * Biomes


 * Another nether biome may be added.

MINECON Live 2019
Screenshots of the Nether Update from MINECON Live 2019:

Trivia

 * Starting with 1.16, all version numbers will be the same for both the Java and Bedrock Editions.