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Wednesday, May 19, 2021 at 3:22 PM

Minecraft Snapshot 21w20a

Table of Contents
Changes in 21w20a
Changes to the Caves & Cliffs Preview
Technical changes in 21w20a
Bugs fixed in 21w20a

Another snapshot is now going out. This time around, we fixed quite a few bugs, and we also introduced some changes to some Caves & Cliffs features, and additionally, we added some extra context for the narrator.

Changes in 21w20a

  • Actually made geodes rarer this time
  • GUI narration now includes position and usage of hovered or focused element
  • Tilling rooted dirt with a hoe will now convert it into dirt, and pop out a hanging roots item
  • Axolotls will now only play dead when in water
  • Llamas no longer spit at players in peaceful mode

Changes to the Caves & Cliffs Preview

Download the updated datapack.

Technical changes in 21w20a

  • Added a new NBT tag for entities - "HasVisualFire" - which will cause any entity with this flag to visually appear on fire, even if they are not actually on fire

Bugs fixed in 21w20a

  • MC-610 Grass / Flowers / Snow are placed incorrectly in newly created chunks
  • MC-102220 Barrier Blocks are not shown when "Show Invisible Blocks" is selected in Save Structure Blocks
  • MC-149777 Crash when loading world: java.util.ConcurrentModificationException when using Java 11 or above
  • MC-172304 Piglins, piglin brutes, hoglins, zoglins and axolotls can attack their own teammates
  • MC-189535 Catching a fish in a bucket on creative mode doesn't give player new bucket
  • MC-191338 Name color for Minecart with Command Block is incorrect
  • MC-192591 Name color for Structure Void is incorrect
  • MC-198200 Crash when leaving out processors in a template pool: java.lang.IllegalArgumentException: bound must be positive
  • MC-203712 Amethyst Geodes cause floating water/lava to generate when intersecting water/lava caves/pools
  • MC-203867 Amethyst geodes can overwrite bedrock
  • MC-204393 Lava Cauldron emits redstone signal strength 1 instead of 3
  • MC-204902 Dirt paths are no longer compatible with the programmer art resource pack
  • MC-205104 Rideable mobs are not affected by powder snow's freezing effect while being ridden
  • MC-205120 Freezing hearts aren't displayed properly in Programmer Art resource pack
  • MC-205250 Amethyst geodes can generate in a stronghold and can potentially destroy the end portal frames
  • MC-205680 minecraft:location_check predicate floating point imprecision
  • MC-206107 Parrots sitting on shoulders do not freeze in powder snow
  • MC-206131 Amethyst blocks are transparent / don't conduct Redstone
  • MC-206601 Potion particles are showing when looking through spyglass
  • MC-206839 Pointed dripstones cause extreme durability damage to helmets
  • MC-207324 Mobs and particles sometimes don't fully render behind stained or tinted glass
  • MC-207366 Trying to modify the world height of a world after it's already been generated gives a null pointer exception
  • MC-208586 Axolotls get stuck and spin constantly on top of lily pads
  • MC-208589 Axolotls have a swimming animation (move their body up- and downwards) when on land
  • MC-208601 Axolotls do not avoid lava when pathfinding
  • MC-208617 Axolotls sometimes twitch rapidly when adjusting their rotation
  • MC-208641 Axolotl movement glitch on stairs
  • MC-208649 Breeding axolotl with a bucket of tropical gives back a bucket instead of a water bucket
  • MC-208654 Collecting an axolotl with a water bucket in creative mode replaces the original bucket
  • MC-208675 Axolotls sometimes use walking animation when in shallow water
  • MC-208682 Axolotls frequently get stuck inside of waterlogged blocks
  • MC-208691 Axolotls play dead even when they take damage without being attacked by an entity
  • MC-208735 Axolotls attempt to pathfind towards unreachable water, then start spinning, eventually drying out and dying
  • MC-209324 Pointed Dripstone can be broken with tridents in spawn protection
  • MC-212125 Only one glow lichen drops when using shears on multiple in a single block space
  • MC-212531 Shulkers can rotate their heads up and down
  • MC-212931 Fire extinguishing sound doesn't play when mobs are extinguished with rain/water
  • MC-214041 Mob can't properly or difficult walk on big dripleaf, when the big dripleaf is 4 blocks or more from the ground
  • MC-214909 Top half of a small dripleaf can turn into a ghost block when placing it in water while the water is being removed
  • MC-215665 Amethyst Geodes can overlap with dungeons
  • MC-216214 netherrack_replace_blobs with water as target crashes the game
  • MC-216980 Comma splices in two source strings (EN_US)
  • MC-217113 Foxes spawned inside of powder snow sleeps
  • MC-217608 The big dripleaf texture is not vertically centered
  • MC-217742 Campfires and TNT can be lit by players using arrows shot from flame bows in spawn protection
  • MC-219856 F3 + L isn't sorted alphabetically in the debug screen
  • MC-219870 The Mojang loading screen upon start up flashes black
  • MC-220063 Sweet berries and glow berries sound events are named extremely differently
  • MC-220128 Parity Issue: Rooted dirt won't turn into the dirt and drop roots item after tilling with hoe in Java
  • MC-220694 Name color for knowledge book is incorrect
  • MC-220867 Fossils can generate through bedrock
  • MC-221566 Name color for light is incorrect
  • MC-221694 Strays do not spawn in powder snow
  • MC-221833 Light blocks are not shown within structure block bounds with Show Invisible Blocks on
  • MC-221863 Powder Snow can be broken by players on fire in spawn protection
  • MC-221984 Collecting an axolotl in a bucket and then placing it resets its kill cooldown
  • MC-222002 Light item displays the wrong level number
  • MC-222116 Splash water bottles doesn't extinguish candle cakes
  • MC-222797 Axolotl can be bred with just tropical fish items, not just bucket ones
  • MC-223322 Chorus flowers can be broken with projectiles in spawn protection
  • MC-223372 You can decrease the level of a water or powder snow cauldron, through the use of an entity on fire in spawn protection
  • MC-224320 minecraft.used:minecraft.potion doesn't increase when filling a partially filled cauldron with a water bottle
  • MC-224322 Powder snow can create ghost blocks in creative mode
  • MC-224480 Powder snow doesn't melt into water in cauldrons
  • MC-224482 Superflat presets no longer generate with decorations
  • MC-225078 Upgrading from 1.12.2 and below will cause items to lose enchantments
  • MC-225253 Dying in a nether portal softlocks the player on the "You Died!" menu
  • MC-225347 cave_vines_plant isn't in #bee_growables
  • MC-225352 Geodes have not been made "significantly rarer"
  • MC-225360 Cannot resolve SRV records: unknown host