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Release date

February 14, 2018

Snapshot for



Client (.json)

18w07a[1] is the eighteenth snapshot released for 1.13.



  • Added stripped logs, a smoother log variant.
    • Created by right clicking with an axe on a log.
    • Act as regular logs, and can still be used to craft planks.
  • Added bubble columns.
    • Created by magma blocks or soul sand in water at least 2 blocks deep.
    • Magma blocks columns push entities down: they will stop items from floating up in water and sink boats.
    • Soul sand columns push entities up.
  • Added kelp and sea grass blocks.
    • Can only be placed underwater, requiring at least one water block above it.
      • Can be placed on dry land by using the /setblock command.
    • Generate in oceans.
    • Can grow multiple blocks high.
    • Have animated textures.
    • Sea grass also comes in a tall variant.
    • Sea grass can be generated when right clicking any block underwater.
    • Kelp can be smelted into dry kelp.
  • Added dried kelp blocks.
    • Smelts 20 items when used as fuel in a furnace.
  • Added prismarine stairs and slabs.
  • Added turtle eggs
    • Stepping on turtle eggs will break them.
      • Zombies and zombie pigmen will intentionally step on turtle eggs.




  • Added Loyalty.
    • Goes up to level III.
    • Used on tridents to make it return when thrown.
  • Added Impaling.
    • Goes up to level V.
    • Used on tridents to deal more damage to sea creatures.
  • Added Riptide.
    • Goes up to level III.
    • Used on tridents to launch the player when thrown while in water or rain.
  • Added Channeling.
    • Only has one level.
    • Used on tridents to summon a lightning bolt on impact with a mob during storms.
      • Requires the target mob to be directly under an open sky and in a biome where it is raining.
  • When sprinting while swimming, the player will now go much faster than normal swimming, and rapidly dive down to the lowest point in the body of water.
    • The players hitbox is only as large as 0.6×0.6 blocks (same as while flying with an elytra) while doing this
    • Vertically, the player can fit through a one block gap like this
      • If the ceiling block is solid, movement is very slow while in such a small space, for any other ceiling block like a bottom slab movement speed is as normal


  • Added the minecraft:bubble_column_up, minecraft:bubble_pop, minecraft:current_down, and minecraft:squid_ink particles.
  • Added the HomePosX, HomePosY, HomePosZ, TravelPosX, TravelPosY, TravelPosZ, and HasEgg NBT tags for turtles.
  • Added the AX, AY, AZ, and Size NBT tags for phantoms.
  • Added the time_since_sleep statistic.
  • Added the minecraft:water_hacked, minecraft:slabs, and minecraft:stairs block tags.
    • Blocks in the minecraft:water_hacked tag will render in water as if any non-filled space in the block model was water.
  • Added the minecraft:acacia_logs, minecraft:birch_logs, minecraft:dark_oak_logs, minecraft:jungle_logs, minecraft:oak_logs, and minecraft:spruce_logs block and item tags.



  • Squids now shoot ink in response to being attacked.
  • Zombies, skeletons, ocelots and wolves will naturally attack baby turtles, and zombies and zombie pigmen will seek out and trample turtle eggs.

Non-mob entities[edit]

  • Items in water now float up.

World generation[edit]

  • In the Nether, vertical air cavities — stretching from bedrock level to as far as Y=35, and filled with lava from bedrock level to Y=10 – now occur in chains across the bottom of the Nether, often forming extensive ravines.


12 issues fixed
From released versions before 1.13
  • MC-11208 – The big tree generator handles tree height variable incorrectly
  • MC-102440 – Large oak trees not spawning or spawning abnormally in forest
From the previous development version
  • MC-124890 – Can't insert charcoal into furnace
  • MC-124897 – "Balloon oak" tree variant generates upside down, with often only stumps visible on the surface
  • MC-124902 – Furnace recipes work in crafting interfaces and interfere with crafting recipes
  • MC-124903 – Random crash in snow biomes: java.lang.NullPointerException: Exception ticking world
  • MC-124913 – Horses, rabbit, parrot, llamas and sheep generate with default color / variant only
  • MC-124916 – Chorus plant generation broken
  • MC-124930 – The game crashes when pressing "show craftable" in the furnace recipe book.
  • MC-124952 – Large oak trees fail to generate in all biomes with the new generator
  • MC-125016 – Debug world does not generate
  • MC-125047 – World generator not fully cleaned before making new world


  1. "Minecraft Snapshot 18w07a" – Minecraft.net, February 14, 2018
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