Minecraft Snapshot 21w05a

New Features in 21w05a#

• Azalea bushes as well as flowering azaela bushes!
• Added cave vines and glow berries!
• Added drip leaves!
• Added decorative blocks for the upcoming lush caves: hanging roots and rooted dirt!
• Added moss!
• Added spore blossom!

Cave vines and glow berries#

• Cave vines grow down from the ceiling, like weeping vines
• When they grow they have a chance of producing glow berries
• Glow berries are a natural light source as well as a food source
• Foxes eat glow berries
• Use glow berries to plant new cave vines
• Bonemealing a cave vine will create glow berries

Dripleaf#

• Small dripleaf needs moisture, so it grows on clay or underwater
• Small dripleaf grow into big dripleaf when bonemealed.
• Big dripleaf grows taller when bonemealed
• If you stand on a big dripleaf it will tilt after a while and you will fall off
• You can crouch or jump to prevent a big dripleaf from tilting
• A tilted big drip leaf will tilt up again after a while
• The big dripleaf will break when hit by a projectile
• The wandering trader will sometimes sell small dripleaf plants

Moss#

• Two new decorative blocks: Moss block and moss carpet
• Moss carpet can be crafted from moss blocks

Spore blossom#

• A beautiful large flower placed on ceilings
• Particles drip from it

Changes in 21w05a#

• The stonecutter can be used to craft the different copper block variants
• The stages of copper oxidization are now called "Copper Block", "Exposed Copper Block", "Weathered Copper Block" and "Oxidized Copper Block" in sequence of least to most oxidized
• Drowned now have a chance of dropping a copper ingot, they no longer drop gold ingots
• Added new sculk sensor events
• Changes to powder snow

Sculk Sensor Changes#

Added the following game events that the Sculk Sensor reacts to, along with corresponding frequency value:

Vibration Types	Frequency Value
Minecart Moving, Ring Bell, Block Change	6
Drinking Finish, Prime Fuse	7
Mob Interact	8
Equip, Shear, Ravager Roar	9
Entity Place	12
Entity Killed	13
Shulker Close	14
Shulker Open	15

• Block Change is for when player or dispenser action has changed a block. Example: cake slice being eaten.
• Mob Interact is for specific mob interaction events that cause vibrations.
• Prime Fuse is for both TNT and Creepers.

Powder Snow changes#

• Flaming arrows now get extinguished when they collide with Powder Snow
• Skeletons now convert to Strays when frozen
• Powder snow is now pushable by pistons and sticky pistons
• Foxes can now walk on top of powder snow without falling in

Technical Changes in 21w05a#

• Improved performance when using many overrides on an item model
• Copper oxidization is now a random tick effect and thus affected by the randomTickSpeed game rule

Fixed Bugs in 21w05a#

• MC-9568 Mobs suffocate / go through blocks when growing up near a solid block
• MC-130098 Debug world spawns player at y=2 instead at y=70 where all the blocks are
• MC-142711 Baby turtles take damage when pushed against ceiling
• MC-148432 Sound spam while in water and lava at the same time
• MC-149495 Pufferfish triggers tripwire without colliding with it upon reloading the game
• MC-152265 Starting server outputs "unable to resolve BlockEntity for ItemStack" errors
• MC-153254 Baby zombies/piglins take damage when pushed against ceiling by bubble columns
• MC-163673 Baby husks, piglins, zombies, zombie villagers, and zombified piglins take damage when jumping into a space with a solid block above it
• MC-186879 Standing in fire and water spams the extinguish sound
• MC-191714 Player is dismounted when standing on farmland while riding a horse/boat while the farmland turns to dirt, causing a desync
• MC-198432 Pufferfish phases through blocks after reloading world
• MC-199356 chatDelay in options.txt has a space between the colon and the value
• MC-200906 Pufferfish hitbox incorrect when reloading world
• MC-204801 Large amounts of copper blocks lag the server and causes the worldsave to take forever
• MC-205079 Cauldrons don't fill with powder snow in some biomes
• MC-205401 "Fire extinguishes" Sound repeatedly plays when a mob that burns in daylight is in powder snow
• MC-205477 Occasional desync when trying to enter/exit a boat while the server is lagging
• MC-205735 Baby cows can suffocate on stairs
• MC-206113 Powder Snow causes Z-Fighting with Falling Blocks
• MC-207258 Sculk sensors do not react to minecarts being driven
• MC-207261 Bell ringing event is not considered a vibration
• MC-207262 Drinking potions or milk doesn’t cause vibrations even though eating does
• MC-207263 Inconsistency: Filling cauldrons with liquids or powder snow is not detected by sculk sensors
• MC-207277 Sculk sensor can't detect setting a fire with fire charge
• MC-207283 Extinguishing a campfire is not detected by sculk sensor
• MC-207300 Blocks being placed or picked up by an enderman are not detected by sculk sensors
• MC-207329 Sculk sensors don't properly detect eating from other mobs
• MC-207340 Sculk sensors do not detect buckets of fish being emptied
• MC-207358 Sculk sensors don't detect shulkers opening and closing
• MC-207384 Flame arrows repeatedly trigger sculk sensors
• MC-207387 Sculk sensors can sense players sneaking in water when they move, even when they're not swimming
• MC-207391 Sculk sensors don't detect certain flying mobs
• MC-207397 The fire extinguish sound plays every tick when the player is on fire and freezing
• MC-207407 Villages will always generate at least on y=0
• MC-207417 Directly breaking fire does not alert sculk sensors, but removing its supporting block correctly does
• MC-207418 Breaking paintings/item frames/glow item frames does not alert sculk sensors, even though placing them does
• MC-207445 Sculk sensor doesn't detect squids swimming
• MC-207473 Sculk sensors do not detect when ghasts shoot
• MC-207520 Sculk sensors don't react to ravager roars
• MC-207521 Ocelots and cats can still emit vibrations while sneaking
• MC-207592 Shooting bow with flame enchantment while sneaking triggers sculk sensor
• MC-207600 Sculk sensor detects wrong sound for fishing rod
• MC-207670 Sculk sensors do not detect the placement of boats and minecarts
• MC-207671 Sculk sensors do not detect candles being placed into cakes
• MC-207672 Sculk sensors do not detect when creepers are set off with flint and steel
• MC-207673 Sculk sensors do not detect lighting TNT with flint and steel
• MC-207674 Sculk sensors do not detect placing things in flower pots
• MC-207675 Sculk sensors do not detect books being placed onto lecterns
• MC-207677 Sculk sensors do not detect collecting water with bottles
• MC-207678 Sculk sensors do not detect collecting honey bottles
• MC-207679 Sculk sensors do not detect the breaking of bee nests and beehives in Creative mode
• MC-207745 Sculk sensors do not detect when ender dragons shoot fireballs
• MC-208193 Sculk sensors do not detect removing things from flower pots
• MC-208194 Sculk sensors do not detect when candle cakes are eaten
• MC-208477 Going into a dimension that has height higher than the maximum height crashes the game
• MC-209361 Game crashes upon instantly click-replacing the block underneath a bamboo sapling with another bamboo
• MC-209625 Baby llamas suffocate when below a solid block while standing on top of a carpet
• MC-212117 Placing glow lichen in lava creates waterlogged glow lichen
• MC-212141 Shulkers get rotated when upgrading to 21w03a
• MC-212149 Shulker is sometimes mis-rotated when player teleports through a nether portal and reloading an active chunk with Shulker
• MC-212284 Crammed enitities pushed through blocks when growing to adults
• MC-212290 Commands "setblock" and "fill" don't work at or above height 1024 in some cases
• MC-212291 Client can dismount vehicles independently from the server, causing a de-sync
• MC-212331 Boats dismount you in the direction the boat is facing instead of the direction of the player
• MC-212347 Importing custom world file height is limited to 2047 instead of 2048
• MC-212422 Game crashes when generating a world with increased height limit
• MC-212532 Shulkers are spawned slightly mis-rotated after a shulker was hit by another shulker's shulker bullet
• MC-212537 Standing near a shulker slightly lifts you when they open
• MC-212541 Shulkers are often incorrectly rotated upon generation
• MC-213512 Copper blocks are named differently from bedrock edition