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Java Edition 17w17a

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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 17w17a
Edition Java Edition
Release date April 26, 2017
Type Snapshot
Snapshot for 1.12
Downloads Client (.json)
Server
Protocol version 324
Data version 1128
Resource pack format 3
Minimum Java version Java SE 8
β—„β—„  1.11.2 1.12 1.12.1 β–Ίβ–Ί

β—„  17w16b

17w17a

17w17b β–Ί

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17w17a is the eighth snapshot for Java Edition 1.12, released on April 26, 2017.[2]

Additions

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General

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Advancements

  • Added 11 advancements and 2 advancement tabs: "Nether" and "The End".
    • Advancements added in this version include:
Nether
IconAdvancementIn-game descriptionParentActual requirements (if different)Resource locationRewards
πŸ‘ Image
πŸ‘ Image
Bring summer clothesβ€”Enter the nether portal block.nether/rootβ€”
πŸ‘ Image
πŸ‘ Image
Destroy a Ghast with a fireballNetherKill a ghast by deflecting a ghast fireball back into it via hitting or shooting a projectile at the fireball.nether/return_to_senderβ€”
πŸ‘ Image
πŸ‘ Image
Break your way into a Nether FortressNetherEnter a nether fortress.nether/find_fortressβ€”
πŸ‘ Image
πŸ‘ Image
Obtain a wither skeleton's skullA Terrible FortressHave an blaze rod in the inventory.nether/get_wither_skullβ€”
The End
IconAdvancementIn-game descriptionParentActual requirements (if different)Resource locationRewards
πŸ‘ Image
πŸ‘ Image
Or the beginning?β€”Enter the end portal block.end/rootβ€”
πŸ‘ Image
πŸ‘ Image
Good luckThe EndKill the ender dragon.end/kill_dragonβ€”
πŸ‘ Image
πŸ‘ Image
Hold the Dragon EggFree the EndHave a dragon egg in the inventory.end/dragon_eggβ€”
πŸ‘ Image
πŸ‘ Image
Respawn the ender dragonFree the Endβ€”end/respawn_dragonβ€”
πŸ‘ Image
πŸ‘ Image
Collect dragon's breath in a glass bottleFree the EndHave a bottle of dragon's breath in the inventory.end/dragon_breathβ€”
πŸ‘ Image
πŸ‘ Image
Go on in, what could happen?Remote GetawayEnter an end city.end/find_end_cityβ€”
πŸ‘ Image
πŸ‘ Image
Levitate for at least 30 secondsCity at the End of the GameHave the Levitation effect for at least 30 seconds.end/levitateβ€”
  • New levitation trigger, with the following conditions:
    • duration - number of ticks the player is levitating for.
    • distance - distance the player levitated so far.
    • Both can be either a range (min and / or max) or a value (value)
  • New feature condition added to the location trigger.
    • The value is a feature name as used in the /locate command.

NBT format

  • UpdateLastExecution (byte):
    • Defaults to 1b. If set to 0b, loops can be created, where the same command block can run multiple times in one tick.
  • LastExecution (long):
    • Stores the tick a chain command block was last executed in.
  • toBeDisplayed (list):
    • Added into the recipeBook compound of the player.
    • Within are recipe names that the player has unlocked but not viewed in the crafting helper yet.
    • Used for remembering to play the animation for new recipes.

Sounds

Changes

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Blocks

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Terracotta

  • It has now unique colors on the map.

Beds

  • Each leg can now be textured individually.

Illusioners

Shulkers

  • Reverted the purple shulker color change from 17w16a.

Command format

[edit | edit source]
  • /advancement:
    • Added five modifiers to the /advancement grant and /advancement revoke commands:
      • "everything" - all advancements, no specification required (same as "*")
      • "from" - this advancement, its children, and their children, etc.
      • "until" - this advancement, its parent, and its parent, etc.
      • "through" - both of the above
      • "only" - this advancement, and nothing else
    • Examples:

General

[edit | edit source]

Advancements

  • Changed and moved around many existing advancements:
    • "Withering Heights" is now an offspring of "Spooky Scary Skeleton".
    • "Into Fire" is now an offspring of "A Terrible Fortress".
    • "Remote Getaway" is now an offspring of "Free the End", and works properly when player throws an ender pearl into the gateway.
    • "Sky's the Limit" is now an offspring of "City at the End of the Game", and is now a "goal" type advancement.
    • "Zombie Doctor" and "Eye Spy" are now offspring of "We Need to Go Deeper".
    • "Eye Spy" now requires the player to enter the stronghold.
    • "A Weak Brew" was replaced with "Local Brewery" (nether/brew_potion), which is an offspring of "Into Fire" and requires the player to retrieve any potion from a brewing stand.
    • Illusioner now counts for "Monster Hunter" and is required for "Monsters Hunted", which makes the advancement unobtainable.
    • "Sniper Duel" not requires a skeleton to be killed.
  • Advancements can now execute commands when achieved.
    • The command written in the rewards section of the advancement is executed as the player (for example writing /say @s would be equivalent to /execute <the_player_who_obtained_this_advancement> ~ ~ ~ say @s)
  • Advancement icons now allow data values.
    • Specifically, icon has switched from being a string to an object.
      • Within it are a required item string (specifying the item ID) and an optional data integer, specifying the metadata of the item
  • The "damage flags object" now contains two new entity objects:
    • source_entity - specifies the "owner" of the damage that was dealt.
    • direct_entity - specifies the direct cause of the damage.

Crafting

Fixes

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20 issues fixed

From released versions before 1.12

  • MC-116623 – Stained hardened clay / terracotta blocks do not have correct color on map

From the 1.12 development versions

  • MC-114979 – advancement command doesn't allow bulk grant/revoking
  • MC-115056 – "Remote Getaway" advancement cannot be obtained by using ender pearls
  • MC-115170 – Advancements Test Command Success Uses the Wrong Translation
  • MC-115173 – Unsuccessful advancement test command has player and advancement name interchanged
  • MC-115442 – Advancement alerts aren't aligned to the top-right corner
  • MC-115574 – "Sniper Duel" advancement triggered when killing non-skeleton mob at distance
  • MC-115740 – Inconsistent error message for /advancement grant @p *
  • MC-115805 – Fences/panes/walls/bars/torches connect to a number of non-solid blocks
  • MC-115821 – Tooltips with long titles in the advancements menu are cut off
  • MC-115880 – 'Take Aim' advancement granted by projectiles other than arrows
  • MC-115936 – Narrator does not properly read output from /say, /tell and /tellraw command
  • MC-115940 – Division by zero crash with alternating /recipe commands
  • MC-116016 – Advancement "adventure/trade" uses criteria named "shot_arrow"
  • MC-116245 – "Zombie Doctor" advancement description has a period, while others don't

From the previous development version

  • MC-116471 – Conditional command blocks SuccessCount doesn't update
  • MC-116514 – "durability" option for item-based triggers succeeds for items without durability
  • MC-116516 – "item_durability_changed" triggers when base change is 0, but not when Unbreaking reduces the change to 0
  • MC-116536 – Recipe red/white outline is inconsistent while searching
  • MC-116650 – Wooden fences connect to nether brick fence

Videos

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Video made by slicedlime:

Trivia

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  • 17w17a 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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