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Minecraft 18w03a

Java Edition



Release date

January 17, 2018

Snapshot for



Client (.json)

Protocol version


Data version


18w03a[1] is the fourteenth snapshot released for Java Edition 1.13, which changes the horse model and improved command performance.



  • Applied new translations.


Horse 18w03a.png


  • Updated the horse model yet again.
    • The mane as well as the tail are longer, the texture was altered to appear slightly more detailed.

Command format[edit]

  • Improved performance of command parsing & data pack loading.
  • Improved performance of command execution.
  • Added commands to the profiler (/debug).
  • /data get with a path now works on non-numeric values.
    • Retrieving a string will now set the length of the string as the result of the command.
    • Retrieving a list will now set the number of elements in that list as the result of the command.
    • Retrieving a compound will now set the number of tags that are directly in that compound as the result of the command.
  • Added the /particle <name> <pos> shortcut.
    • delta, speed, and count will default to 0.


15 issues fixed
From the 1.13 development versions
  • MC-122196 – Language options are blank
  • MC-123285 – Crash on startup with a debug log4j config
  • MC-124072 – performance problems with "execute" command
From the previous development version
  • MC-124113 – Ender dragon boss health bar shows incorrect name
  • MC-124115 – The summon command suggests "minecraft:player" and "minecraft:fishing_bobber"
  • MC-124116 – execute positioned as <entity> run <command> returns Unexpected error
  • MC-124120 – "execute rotated as" gives an unexpected error
  • MC-124122 – Zipped datapacks cannot be loaded
  • MC-124124/teleport ... facing ... is not working correctly
  • MC-124138 – local coordinates (^ ^ ^5) require an entity even after execute-facing
  • MC-124150 – Entity related server warning messages output TextComponent / TranslatableComponent object rather than the entity's name
  • MC-124179 – Translations are displayed UTF-8 encoded
  • MC-124222 – When using /execute store or if/unless score, execute sub-commands only run (for each entity), if store/score entity selector finds at least one entity for each execution
  • MC-124256/gamerule reducedDebugInfo required a relog
  • MC-124286 – Crash on "show_entity" hover event with nbt as value


Video made by slicedlime:


  1. "Minecraft Snapshot 18w03a" – Minecraft.net, January 17, 2018