Minecraft:Java Edition 17w13a

17w13a is the second Minecraft:snapshot for Minecraft:Java Edition 1.12, released on March 30, 2017,<ref>Template:Snap</ref> which adds parrots, knowledge books, changes textures of some glazed terracotta, and replaces achievements with Minecraft:advancements.

17w13a was reuploaded an hour and a half after release to fix an issue on macOS.<ref>Template:Tweet</ref>

Additions

Items

File:Knowledge Book JE1.png Minecraft:Knowledge books

• A green-colored book.
• Currently obtainable only with the Template:Cmd command.
• A knowledge book with a Recipes tag, which contains a list of item IDs, is consumed and unlocks the specified items' recipes for any player that Template:Control it.
  • Especially useful when Template:Cmd is set to true.

Minecraft:Spawn eggs

• File:Parrot Spawn Egg JE1 BE1.png Minecraft:Parrot spawn egg
  • Spawns parrots.

Mobs

Minecraft:Parrots

• Tamable with Minecraft:cookies.
• Fly around, but sit when "tired".
• Follow and crowd around nearby mobs.
• Imitates sounds of other mobs.
• Template:Control tamed parrots places them on the player's shoulder.
  • Let go if the player jumps.
  • Can fly with players during Minecraft:elytra flight.
• Have Template:Hp health.
• Come in red, blue, green and cyan.

Gameplay

Minecraft:Gamerules

• doLimitedCrafting
  • Off by default.
  • Enabling only allows players to craft recipes they have unlocked.

Command format

/recipe <give|take> [player] <name|*>

• Can unlock, or lock, the given recipes for the given player.
• If * is specified, it locks or unlocks all recipes for the player.

/advancement <grant|revoke|test> <player> <advancement> [criterion]

• Can grant, test or revoke advancements, and particular advancement criteria, for a given player.

General

File:Advancement tree 17w13a.png

Advancement tree in 17w13a.

Minecraft:Advancements

• Replaces achievements.
• Can be customized via JSON files.
• Tab-based UI.
  • Currently only has one tab ("Minecraft") with 22 advancements.
  • Different background per tab, single texture on repeat for now.
  • Data-driven UI, including positioning and layout.
  • Advancements in this version include:

Minecraft:Narrator

• Template:Key + Template:Key toggles a text-to-speech engine that automatically reads player chat messages, including the name.
• The narrator doesn't read commands or command outputs, nor it reads messages produced with Template:Cmd.

Minecraft:NBT format

• ShoulderEntityLeft / ShoulderEntityRight: Contains entity data about an entity on the left and right shoulders of the player.
• seenCredits: Changes to 1 if the player leaves the End through the portal.
• recipeBook: A string containing a list of recipes, formatted as JSON, that the player has seen.
• Recipes: A list of crafting recipes to unlock for the player that right-clicks while holding a knowledge book.
  • If this is not specified, the knowledge book is not consumed.

Minecraft:Recipe books

• Catalogs recipes that are unlocked when the criteria are met.
• When a recipe is clicked, it appears in the crafting grid, and can be crafted if materials are available.
• recipes folder added with all item recipes as .json files.

Changes

Blocks

File:TerracottaSnapshotComparison.png

Comparison of the terracotta texture changes.

Minecraft:Glazed terracotta

• Textured changed for cyan, magenta, orange, and white glazed terracotta, to remove unintentional and potentially offensive imagery.<ref>https://www.reddit.com/r/Minecraft/comments/5sspmk/minecraft_snapshot_17w06a/ddhjm42/?context=1</ref>

Minecraft:Beacons

• Now display their name when hovering over them.

Minecraft:Enchantment tables

• Now display their name when hovering over them.

Items

Minecraft:Fishing rods

• Changed the sound of bobbers being thrown.

General

Achievements

• Removed and replaced by advancements.

Minecraft:Crafting

• Closing the crafting interface with items inside no longer drops the items in front of the player, but sends them instead to the inventory.

Java version

• This is the first snapshot to use, and thus require, Java 8.<ref name="java 8">Template:Tweet</ref>

Moving backwards

• The player's body now entirely faces to the front, when moving backwards.<ref>Template:Bug, resolved as "Works as Intended" – Maria Lemón, April 22, 2017</ref><ref>Template:Reddit</ref>
  • Prior to this snapshot, moving backwards would cause the player model to rotate one side, making it look like the player was strafing backwards somewhat.

Fixes

Template:Fixes From the current version, hotfixed

• Fixed the game not loading on macOS.

Trivia

• 17w13a was previously removed from the Minecraft:launcher for some time, but was added back in September 2018.
• 17w13a has the longest wait between snapshots on the same development version, with 50 days having elapsed since the release of Minecraft:17w06a on February 8, 2017.
  • Until this point, the longest waits had been those between Minecraft:14w11b and Minecraft:14w17a, which spanned 42 days.