Java Edition 17w13a

{
 "title": "Minecraft 17w13a",
 "images": [
 "17w13a.png",
 "Java Edition 17w13a.png"
 ],
 "rows": [
 {
 "field": "''(link to Java Edition article, displayed as Java Edition)''",
 "label": "(link to Edition article, displayed as Edition)"
 },
 {
 "field": "March 30, 2017",
 "label": "Release date"
 },
 {
 "field": "(link to Snapshot article, displayed as Snapshot)",
 "label": "(link to Version types article, displayed as Type)"
 },
 {
 "field": "(link to Java Edition 1.12 article, displayed as 1.12)",
 "label": "Snapshot for"
 },
 {
 "field": "'''Original:'''<br>\n[https://piston-data.mojang.com/mc/game/17w13a/client/84867afe218d806aee91c2036cbc7b0d1ce19e99/client.jar Client] ([https://vault.omniarchive.uk/versions/java/client/release/1.12/pre/17w13a-0805/17w13a-0805.json .json])<br>\n[https://piston-data.mojang.com/mc/game/17w13a/server/9230038e59d214a2e5764c3c889e23241c183a8e/server.jar Server]<br>\n'''Reupload:'''<br>\n[https://piston-data.mojang.com/v1/objects/8a11edbdd3d8be019b3eb85089f2f5d97ec3ac4e/client.jar Client] ([https://piston-meta.mojang.com/v1/packages/ec0d9ff2917f223b24725b259d7aea1249f4a07c/17w13a.json .json])<br>\n[https://piston-data.mojang.com/v1/objects/d3806f89b9c90cbfb78919a3bcc010ad2e5d6ebb/server.jar Server]",
 "label": "(link to Tutorial:Installing a version#Manual version installation article, displayed as Downloads)"
 },
 {
 "field": "318",
 "label": "(link to Protocol version article, displayed as Protocol version)"
 },
 {
 "field": "1122",
 "label": "(link to Data version article, displayed as Data version)"
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 {
 "field": "3",
 "label": "<span style=\"white-space: normal;\">(link to Pack format#List of pack formats article, displayed as Resource pack format)</span>"
 },
 {
 "field": "<span class=\"plainlinks\">[https://en.wikipedia.org/wiki/Java_version_history#Java_SE_8_.28LTS.29 Java SE 8]</span>",
 "label": "<span style=\"white-space: normal;\">Minimum Java version</span>"
 }
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 "invimages": [],
 "footer": "<table style=\"margin: auto; word-break: break-word;\">\n<tr style=\"background: inherit;\">\n<td style=\"padding: 0.4em\" >[[Java Edition 1.11.2|<span style=\"margin-right:-0.35em\">◄</span>◄  1.11.2]]</td>\n<td style=\"padding: 0.4em\">'''[[Java Edition 1.12|1.12]]'''</td>\n<td style=\"padding: 0.4em\" >[[Java Edition 1.12.1| 1.12.1 <span style=\"margin-right:-0.35em\">►</span>►]]</td>\n</tr>\n<tr style=\"background: inherit;\">\n<td style=\"padding: 0.4em\">\n[[Java Edition 17w06a|◄  17w06a]]\n</td>\n<td style=\"padding: 0.4em\">''' 17w13a'''</td>\n<td style=\"padding: 0.4em\">\n[[Java Edition 17w13b| 17w13b ►]]\n</td>\n</tr>\n</table>"
}

17w13a is the second snapshot for Java Edition 1.12, released on March 30, 2017,^[2] which adds parrots, knowledge books, changes textures of some glazed terracotta, and replaces achievements with advancements.

17w13a was reuploaded an hour and a half after release to fix an issue on macOS.^[3]

👁 Image
Knowledge books

• A green-colored book.
• Currently obtainable only with the /give @p knowledge_book 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 uses it.
  • Especially useful when /gamerule doLimitedCrafting is set to true.

Spawn eggs

• 👁 Image
  Parrot spawn egg
  • Spawns parrots.

Parrots

• Tamable with cookies.
• Fly around, but sit when "tired".
• Follow and crowd around nearby mobs.
• Imitates sounds of other mobs.
• Using tamed parrots places them on the player's shoulder.
  • Let go if the player jumps.
  • Can fly with players during elytra flight.
• Have 6HP👁 ❤️
  👁 ❤️
  👁 ❤️
  health.
• Come in red, blue, green and cyan.

Gamerules

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

/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.

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:

Narrator

• + 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 /me.

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.

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.

Glazed terracotta

• Textured changed for cyan, magenta, orange, and white glazed terracotta, to remove unintentional and potentially offensive imagery.^[4]

Beacons

• Now display their name when hovering over them.

Enchantment tables

• Now display their name when hovering over them.

Fishing rods

• Changed the sound of bobbers being thrown.

Achievements

• Removed and replaced by advancements.

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.^[5]

Moving backwards

• The player's body now entirely faces to the front, when moving backwards.^[6][7]
  • 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.

3 issues fixed

From the previous development version

• MC-113377 – New block Swastika
• MC-113844 – White Glazed Terracotta symbol (looks like the symbol of the Hungarian Nazi party)

From the current version, hotfixed

• Fixed the game not loading on macOS.

• 17w13a was previously removed from the 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 17w06a on February 8, 2017.
  • Until this point, the longest waits had been those between 14w11b and 14w17a, which spanned 42 days.