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17w17b[1] is the ninth snapshot released for Java Edition 1.12.

Additions[]

General[]

NBT tags
  •  LoveCauseLeast,  LoveCauseMost for breedable entities.
    • Together these record the UUID of the entity that caused a given animal to breed.
Advancements
  • Added a new number display to track progress while completing certain advancements
  • Added the changed_dimension trigger
    • Takes two optional conditions: to and from, both being strings that accept "overworld", "the_nether", or "the_end".
    • Without the conditions, you can check if the player travels to any dimension from any dimension.
  • The "location" shared object has a new dimension string (same values as above).

Changes[]

Mobs[]

Illusioners
  • The regional difficulty requirement for them to cast their Blindness spell is decreased from 3 to 2.

General[]

Advancements
  • The default advancements now all receive their titles and descriptions from the localization files.

Fixes[]

15 issues fixed
From released versions before 1.12
  • MC-108175 – Villagers sent through an end gateway portal in a minecart lose their AI.
From the 1.12 development versions
  • MC-114971 – Missing usage translation for /advancement test command
  • MC-115392 – Only host can unlock advancements on LAN
  • MC-115505 – Advancement background does not find texture from resources.zip embedded in world folder
  • MC-115710 – Rapidly pressing jump while riding a vehicle will make the parrot on your shoulder invisible
  • MC-116143 – Don't have to enter the Nether to get the "Nether" advancement
  • MC-116616 – The bred_animals trigger doesn't work when saving & re-entering after breeding
  • MC-116683 – The @s selector not mentioned in command block interface
From the previous development version
  • MC-116654 – "Spooky Scary Skeleton" (nether/get_wither_skull.json) advancement tests for blaze rod instead of wither skull
  • MC-116656 – Closing world during ender dragon respawn and reopening it causes crash
  • MC-116661 – Long advancement titles are cut off in toasts
  • MC-116665 – Recipe command tab completes string representation of recipe objects
  • MC-116671 – The "durability" option for item-based triggers fails for items with durability
  • MC-116676 – Parrots don't imitate illusioners
  • MC-116700 – "The End" is granted to the player when they step on the portal

Video[]

Video made by slicedlime:

Trivia[]

  • 17w17b was previously removed from the launcher for some time, but was added back in September 2018.

References[]

  1. "Minecraft Snapshot 17w17a" – Minecraft.net, April 26, 2017
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