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Java Edition 17w16b

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This page covers a development version that has a major issue under certain conditions.
 
The dedicated server for this version has a security vulnerability in the Log4j library that could be used to perform a remote code execution exploit. It can be addressed by appending a certain JVM argument to the server startup command line.[1]
Minecraft 17w16b
Edition Java Edition
Release date April 21, 2017
Type Snapshot
Snapshot for 1.12
Downloads Client (.json)
Server
Protocol version 323
Data version 1127
Resource pack format 3
Minimum Java version Java SE 8
β—„β—„  1.11.2 1.12 1.12.1 β–Ίβ–Ί

β—„  17w16a

17w16b

17w17a β–Ί

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17w16b is the seventh snapshot for Java Edition 1.12, released on April 21, 2017.[2]

Additions

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Gameplay

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Gamerules

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

General

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Advancements

  • 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.

Fixes

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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

Videos

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Video made by slicedlime:

Trivia

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  • 17w16b was previously removed from the launcher for some time, but was added back in September 2018.

References

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Navigation

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