Minecraft 21w03a

Everything below is measured by comparing the game files of 1.16.5 with 21w03a — not copied from patch notes.

21w03a block and item additions

92 new blocks and items. Hover a slot for the name; click to open its page.

Blocks +82 · −1

Amethyst BlockAmethyst ClusterBlack CandleBlack Candle CakeBlue CandleBlue Candle CakeBrown CandleBrown Candle CakeBudding AmethystCalciteCandleCandle CakeCopper BlockCopper OreCut CopperCut Copper SlabCut Copper StairsCyan CandleCyan Candle CakeDirt PathDripstone BlockGlow LichenGray CandleGray Candle CakeGreen CandleGreen Candle CakeLarge Amethyst BudLava CauldronLight Blue CandleLight Blue Candle CakeLight Gray CandleLight Gray Candle CakeLightly Weathered Copper BlockLightly Weathered Cut CopperLightly Weathered Cut Copper SlabLightly Weathered Cut Copper StairsLightning RodLime CandleLime Candle CakeMagenta CandleMagenta Candle CakeMedium Amethyst BudOrange CandleOrange Candle CakePink CandlePink Candle CakePointed DripstonePowder SnowPowder Snow CauldronPurple CandlePurple Candle CakeRed CandleRed Candle CakeSculk SensorSemi Weathered Copper BlockSemi Weathered Cut CopperSemi Weathered Cut Copper SlabSemi Weathered Cut Copper StairsSmall Amethyst BudTinted GlassTuffWater CauldronWaxed CopperWaxed Cut CopperWaxed Cut Copper SlabWaxed Cut Copper StairsWaxed Lightly Weathered CopperWaxed Lightly Weathered Cut CopperWaxed Lightly Weathered Cut Copper SlabWaxed Lightly Weathered Cut Copper StairsWaxed Semi Weathered CopperWaxed Semi Weathered Cut CopperWaxed Semi Weathered Cut Copper SlabWaxed Semi Weathered Cut Copper StairsWeathered Copper BlockWeathered Cut CopperWeathered Cut Copper SlabWeathered Cut Copper StairsWhite CandleWhite Candle CakeYellow CandleYellow Candle Cake

Removed: minecraft:grass_path

Items +71 · −1

Amethyst BlockAmethyst ClusterAmethyst ShardAxolotl BucketAxolotl Spawn EggBlack CandleBlue CandleBrown CandleBudding AmethystBundleCalciteCandleCopper BlockCopper IngotCopper OreCut CopperCut Copper SlabCut Copper StairsCyan CandleDirt PathDripstone BlockGlow Ink SacGlow Item FrameGlow LichenGlow Squid Spawn EggGray CandleGreen CandleLarge Amethyst BudLight Blue CandleLight Gray CandleLightly Weathered Copper BlockLightly Weathered Cut CopperLightly Weathered Cut Copper SlabLightly Weathered Cut Copper StairsLightning RodLime CandleMagenta CandleMedium Amethyst BudOrange CandlePink CandlePointed DripstonePowder Snow BucketPurple CandleRed CandleSculk SensorSemi Weathered Copper BlockSemi Weathered Cut CopperSemi Weathered Cut Copper SlabSemi Weathered Cut Copper StairsSmall Amethyst BudSpyglassTinted GlassTuffWaxed CopperWaxed Cut CopperWaxed Cut Copper SlabWaxed Cut Copper StairsWaxed Lightly Weathered CopperWaxed Lightly Weathered Cut CopperWaxed Lightly Weathered Cut Copper SlabWaxed Lightly Weathered Cut Copper StairsWaxed Semi Weathered CopperWaxed Semi Weathered Cut CopperWaxed Semi Weathered Cut Copper SlabWaxed Semi Weathered Cut Copper StairsWeathered Copper BlockWeathered Cut CopperWeathered Cut Copper SlabWeathered Cut Copper StairsWhite CandleYellow Candle

Removed: minecraft:grass_path

Mobs and entities +3

AxolotlGlow Item FrameGlow Squid

How to make the new things 61

Hover a slot to see what goes in it.

Result	Made in	Recipe
Amethyst Block	Crafting
Black Candle	Crafting
Blue Candle	Crafting
Brown Candle	Crafting
Bundle	Crafting
Candle	Crafting
Copper Block	Crafting
Copper Ingot	Smelting	Smelting10.0s · 0.7 XP
Copper Ingot	Blasting	Blasting5.0s · 0.7 XP
Copper Ingot	Crafting	4
Cut Copper	Crafting	4
Cut Copper Slab	Crafting	6
Cut Copper Stairs	Crafting	4
Cyan Candle	Crafting
Dripstone Block	Crafting
Glow Item Frame	Crafting
Gray Candle	Crafting
Green Candle	Crafting
Light Blue Candle	Crafting
Light Gray Candle	Crafting
Lightly Weathered Cut Copper	Crafting	4
Lightly Weathered Cut Copper Slab	Crafting	6
Lightly Weathered Cut Copper Stairs	Crafting	4
Lightning Rod	Crafting
Lime Candle	Crafting
Magenta Candle	Crafting
Orange Candle	Crafting
Pink Candle	Crafting
Purple Candle	Crafting
Red Candle	Crafting
Semi Weathered Cut Copper	Crafting	4
Semi Weathered Cut Copper Slab	Crafting	6
Semi Weathered Cut Copper Stairs	Crafting	4
Spyglass	Crafting
Tinted Glass	Crafting	2
Waxed Copper	Crafting
Waxed Cut Copper	Crafting	4
Waxed Cut Copper	Crafting
Waxed Cut Copper Slab	Crafting
Waxed Cut Copper Slab	Crafting	6
Waxed Cut Copper Stairs	Crafting
Waxed Cut Copper Stairs	Crafting	4
Waxed Lightly Weathered Copper	Crafting
Waxed Lightly Weathered Cut Copper	Crafting	4
Waxed Lightly Weathered Cut Copper	Crafting
Waxed Lightly Weathered Cut Copper Slab	Crafting	6
Waxed Lightly Weathered Cut Copper Slab	Crafting
Waxed Lightly Weathered Cut Copper Stairs	Crafting	4
Waxed Lightly Weathered Cut Copper Stairs	Crafting
Waxed Semi Weathered Copper	Crafting
Waxed Semi Weathered Cut Copper	Crafting	4
Waxed Semi Weathered Cut Copper	Crafting
Waxed Semi Weathered Cut Copper Slab	Crafting	6
Waxed Semi Weathered Cut Copper Slab	Crafting
Waxed Semi Weathered Cut Copper Stairs	Crafting	4
Waxed Semi Weathered Cut Copper Stairs	Crafting
Weathered Cut Copper	Crafting	4
Weathered Cut Copper Slab	Crafting	6
Weathered Cut Copper Stairs	Crafting	4
White Candle	Crafting
Yellow Candle	Crafting

Block entities +1

Particles +10

Sound events +89

Block states changed

New in-game text 181

Showing the first 80 of 181 new strings.

Reworded text 6

Wording Mojang changed in this version.

Read from Mojang’s own release notes for Minecraft Snapshot 21w03a, published 2021-01-20. Every entry keeps its original bug ID.

37 issues fixed, read from Mojang’s own patch notes. Each entry keeps its original bug ID.

Fixed bugs in 21w03a 37

• MC-9568 Mobs suffocate / go through blocks when growing up near a solid block
• MC-89880 Spawner with weight 0 crashes game
• MC-91522 Shulker rendering position desync and generates ghost shulker when destroying shulker-ridden boat or minecart
• MC-92349 Players can't tempt animals with food while other players are closer to the animal
• MC-92867 Setting Json text value to null throws exceptions and crashes
• MC-105344 Shulkers in boats and minecarts do not sit up if previousely attached to blocks sideways
• MC-108717 Shulkers can't be pushed back
• MC-111196 Using a monster spawner to spawn shulkers spawns white shulkers
• MC-113177 Shulkers cannot be pushed inside non-solid blocks
• MC-119051 Random transparent line in shulker box GUI texture
• MC-121897 Gaps in an animation's used frames throws ArrayIndexOutOfBoundsException
• MC-139265 Shulkers do not teleport correctly when going through a portal
• MC-161334 Shulker boxes cannot be opened if next to a shulker mob
• MC-168900 Shulkers teleport with original dimension coordinates after passing through portals
• MC-183884 Shulkers are afraid of being next to another shulker
• MC-186172 Shulkers open into blocks when unable to teleport
• MC-190677 Shulkers aren't aligned to the grid for a split second after being spawned in
• MC-200195 Boats don't try dismounting you on land
• MC-202202 Server is unable to prevent a player from dismounting a vehicle, causing a desync
• MC-203373 Shulker bullet subtitles are not capitalized correctly
• MC-203571 Right-clicking an empty bundle sometimes plays hand animation
• MC-204337 Bundle use stat never increases
• MC-205076 Game mode selection is ordered differently
• MC-206118 "type" in loot table number providers is not optional anymore
• MC-206510 Game crashes when trying to shift-click a chest into the inventory of a donkey whose chest is being removed
• MC-206550 block.pointed_dripstone.drip_[liquid/cauldron] has no subtitles
• MC-206599 Pointed dripstone can be placed atop each other, even if a player would be inside the hitbox of the lower dripstone
• MC-206923 Dripstone subtitles are not capitalized properly
• MC-207250 Dripstone caves biome name is not properly capitalized
• MC-207254 Dripstone caves generate merging dripstones in impossible ways
• MC-207293 Dripstone generated in dripstone caves can replace lava sources which looks weird
• MC-207335 Mobs cannot spawn in Dripstone Caves
• MC-207388 Issues with chunk rendering when height limit is large
• MC-207900 Summoning "dust" or "dust_color_transition" particles kicks nearby players when on a server
• MC-208336 'player' sub-predicate of 'entity_properties' predicate only passes if game mode is specified
• MC-208611 Shulkerboxes/bundles duplicate items when destroyed by two fire blocks simultaneously
• MC-208666 Shulker boxes and bundles drop their items twice when thrown into a lava cauldron

This build was part of the run-up to 1.17. Everything tested here landed in that release.