Minecraft Wiki
Java Edition 18w30b.png

Java Edition



Release date

July 25, 2018

Snapshot for



Client (.json)

Protocol version


Data version


18w30b is the second snapshot released for Java Edition 1.13.1, which fixes many bugs.[1]


30 issues fixed
From released versions before 1.13
  • MC-3927 – Iron golems can spawn in slabs, glass, farmland and grass path.
  • MC-74764 – Particle "largeexplode", "hugeexplosion" and "sweepattack" not showing when using the front view (twice F5).
  • MC-75465 – Vignette effect's visibility is not being updated according to light level when GUI is hidden.
  • MC-76615 – Lightning bolt summoned by /summon is offset +0.5x and +0.5z.
  • MC-78963 – Command completion fails with multiple possibilities and other arguments set.
  • MC-105512 – Cracks appear inside dragon head instead of outside.
  • MC-114218 – Dispensers and droppers don't offset smoke particles when facing up or down.
  • MC-119856 – Slime blocks missing cullface argument.
  • MC-120664 – Tool durability is off by one.
  • MC-120780 – Chunk data packets are sometimes created unnecessarily.
  • MC-121152 – WorldClient leaks player and painting entities
  • MC-122614 – Strange tab completion coloring.
  • MC-123586 – Debug pie chart uses locale specific number formatting.
  • MC-123880 – Clientbound play packet 0x0C (Boss Bar) using same byte for different booleans.
From 1.13
  • MC-124054 – Tab-suggestions don't disappear when moving cursor.
  • MC-133154Placing a slab to stop the water flow doesn't remove the water.
  • MC-133273 – Normal Pistons also spit out their blocks with a short signal.
  • MC-133294 – Map Markers blacked out.
  • MC-133425 – Missing Glyphs for (U+FF3B) and (U+FF08).
  • MC-133453 – Players can't stand in "walk-through" blocks after swimming.
  • MC-134273 – Player Markers on Map after disconnect.
  • MC-134274 – Map Markers for players holding a different Map.
  • MC-134668 – Over synchronization in ThreadedAnvilChunkStorage impacts performance
  • MC-134903 – Mobs can break turtle eggs by standing on them when gamerule mobGriefing is false.
From the previous development version
  • MC-134826 – Deleting a world doesn't remove it from the list until re-entering world list.
  • MC-134828 – Server crash - Ticking world entities.
  • MC-134833 – Fast movement.
  • MC-134858 – The TNT block state "explode" does not carry over to 1.13.1's "unstable".
  • MC-134905 – Exception ticking world.
  • MC-134919 – Crash when blowing up TNT in the Nether
Other fixes
  • Fixed issue with rain sounds causing the console to spam errors.


Video made by slicedlime:


  1. "Minecraft Snapshot 18w30a" – Minecraft.net, July 25, 2018