Minecraft Snapshot 18W31A


Surviving the heat? Most of the Java team are on holiday/on fire. But we still managed to release a snapshot. Pretty impressive, no?


  • Optimized performance
  • Fish now have a 5% chance of dropping bonemeal when killed
  • Conduits are properly waterlogged
  • Bonemeal used in water now has a chance to grow coral in warm ocean biomes
  • Squids now only spawn in rivers and oceans
  • Added a concept of force-loaded chunks to the game, and a command (/chunk) to toggle force-loading on and off


  • MC-73 – Green arrow bug on maps in frames
  • MC-1528 – Maps in item frames’ markers aren’t persistent
  • MC-112801 – Players on the death screen still cause spawners to spawn.
  • MC-122939 – Statistics for mining banners and beds never increase
  • MC-128547 – Minecraft keeps previously used World in memory if the player has hit any entity in that world
  • MC-130258 – Maps in item frames show shading problems
  • MC-133181 – Observer Cooldown is broken
  • MC-134105 – Can’t return from the end after defeating dragon
  • MC-134159 – Saved world causes crash in 1.13
  • MC-134667 – Async Chunk Gen dangerously adding entities to world async
  • MC-134716 – Minecraft Multiplayer – Player kick exploit
  • MC-134832 – TNT with unstable=true blockstate is ignited instead of broken in creative mode
  • MC-134889 – Iron golems spawn in air blocks
  • MC-134898 – Pressing Escape no longer returns to main menu from singleplayer menu
  • MC-134916 – Sound event block.pumpkin.carve doesn’t play when carving normal pumpkins
  • MC-134967 – NullPointerException when placing Wither Skeleton Skulls
  • MC-134982 – Exception when placing a command block
  • MC-134987 – Renaming a world doesn’t update its name until re-entering the world list
  • MC-134988 – Optimizing a world doesn’t update it until re-entering the world list
  • MC-135049 – Old world doesn’t save map markers in 1.13
  • MC-135053 – Sticky pistons get stuck when receiving a 0 gametick pulse
  • MC-135136 – Crash when placing a chain command block with set command
  • MC-135172 – Under certain conditions pistons can’t be powered for the first 2 gameticks after being moved
  • MC-135185 – All redstone components can become stuck in a powered state when indirectly unpowered
  • MC-135186 – Pistons can only be re-pulsed 5 or more gameticks later.
  • MC-135194 – Pistons react 1 gametick too late
  • MC-135261 – /setblock for player heads don’t show the texture after the placement

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