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Release date

April 21, 2017

Snapshot for



Client (.json)

17w16b[1] is the seventh snapshot released for 1.12.

Additions[edit | edit source]

General[edit | edit source]

  • New trigger: minecraft:item_durability_changed
    • Triggers when an item in the player's inventory is damaged in some manner, such as hurting a mob with a sword.
    • Three conditions that can be used for this trigger:
      • item: Checks information about the item before durability loss.
      • durability: Checks the durability of the item after durability loss.
      • delta: Checks how much durability was lost.

Gameplay[edit | edit source]

  • maxCommandChainLength
    • The default is 65536.
    • Determines the number at which the chain command block acts as a "chain".

Fixes[edit | edit source]

9 issues fixed
From released versions before 1.12
  • MC-111753 – Hopper/Dropper will not input water bottles into brewing stand after potions have been removed by a hopper from brewing stand
From the 1.12 development versions
  • MC-115883 – Parrots disappear when climbing ladders/vines
  • MC-116271 – Parrots turn red
From the previous development version
  • MC-116357 – Some items appear multiple times in the recipe book
  • MC-116365 – The "conditional" setting no longer works for command blocks
  • MC-116372 – Chain command blocks set to "needs redstone" still executes without signal
  • MC-116388 – Chain command blocks can clone themselves to create an infinite loop which freezes the server
  • MC-116398 – Crash when changing dimension/relogging with a full inventory
  • MC-116432 – Server crashed when leaving items on crafting table with full inventory

References[edit | edit source]