Java Edition 17w46a

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 "title": "Minecraft 17w46a",
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 "field": "(link to Snapshot article, displayed as Snapshot)",
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 "label": "Snapshot for"
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 {
 "field": "[https://piston-data.mojang.com/v1/objects/fd90b150fb461573b121a7e6b6de657ba382f14d/client.jar Client] ([https://piston-meta.mojang.com/v1/packages/5b07e94d1276496e661c99d117b8dc5df4f6d099/17w46a.json .json])<br />[https://piston-data.mojang.com/v1/objects/9127416e2341eb8fb7b63636c3ae39efefb2843b/server.jar Server]",
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 {
 "field": "1449",
 "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>"
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 "field": "<span class=\"plainlinks\">[https://en.wikipedia.org/wiki/Java_version_history#Java_SE_8_.28LTS.29 Java SE 8]</span>",
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 "footer": "<table style=\"margin: auto; word-break: break-word;\">\n<tr style=\"background: inherit;\">\n<td style=\"padding: 0.4em\" >[[Java Edition 1.12.2|<span style=\"margin-right:-0.35em\">◄</span>◄  1.12.2]]</td>\n<td style=\"padding: 0.4em\">'''[[Java Edition 1.13|1.13]]'''</td>\n<td style=\"padding: 0.4em\" >[[Java Edition 1.13.1| 1.13.1 <span style=\"margin-right:-0.35em\">►</span>►]]</td>\n</tr>\n<tr style=\"background: inherit;\">\n<td style=\"padding: 0.4em\">\n[[Java Edition 17w45b|◄  17w45b]]\n</td>\n<td style=\"padding: 0.4em\">''' 17w46a'''</td>\n<td style=\"padding: 0.4em\">\n[[Java Edition 17w47a| 17w47a ►]]\n</td>\n</tr>\n</table>"
}

17w46a is the fifth snapshot for Java Edition 1.13, released on November 15, 2017^[1], which added the /datapack command.

/datapack

• A command to control loaded data packs.
• Has the following subcommands:
  • enable <name> - enables the specific pack.
  • disable <name> - disables the specific pack.
  • list [available|enabled] - lists all data packs, or only the available/enabled ones. Hovering over the data packs in this list shows their description defined in their pack.mcmeta.
• Data packs are enabled by default, but if the player have disabled it they can re-enable it with these commands:
  • enable <name> - enables the specific pack, putting it in its default position.
  • enable <name> first - enables the specific pack, putting it before any other pack (lowest priority).
  • enable <name> last - enables the specific pack, putting it after any other pack (highest priority).
  • enable <name> before <existing> - enables the specific pack, putting it before (lower priority) <existing> pack.
  • enable <name> after <existing> - enables the specific pack, putting it after (higher priority) <existing> pack.

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• The horse model has been slightly tweaked.
  • The snout is located one pixel higher and the back legs were moved by 1.5 pixels back.

Command UI

• A new prototype for the command UI.
• Now works in multiplayer.

21 issues fixed

From released versions before 1.13

• MC-10880 – Comma or other symbols after @ selector does not work with command blocks.
• MC-76044 – randomTickSpeed, spawnRadius, maxEntityCramming and maxCommandChainLength accept non-integer value.
• MC-88481 – '/worldborder set' allows small decimal numbers but does not display them correctly in chat.
• MC-99434 – /worldborder damage command not giving any feedback with an invalid argument.
• MC-107359 – You can replace loot tables and advancements, but not structure files.
• MC-110566 – Failed /scoreboard players operation can still give a score of 0.
• MC-117191 – Tab-completion list doesn't change when moving cursor with mouse.

From the 1.13 development versions

• MC-121645 – Commands aliases do not display syntax help/tab-complete correctly.
• MC-121658 – Starting a LAN with cheats enabled doesn't enable cheats for the initial player.
• MC-121684 – New command menu blocks entire screen.
• MC-121690 – Not providing block states will make the game test for the defaults, instead of ignoring the states.
• MC-121691 – /teleport with rotation does not work.
• MC-121694 – Mobs summoned using /summon have no weapons.
• MC-121754 – /ban does not kick banned player anymore.
• MC-121756 – Trying to add a scoreboard objective with already used name shows wrong error.
• MC-121791 – Exceptions in the gameLoopFunction crash the server.
• MC-121810 – Command errors in chat are not red anymore.

From the previous development version

• MC-121838 – Tab doesn't insert anything if there are multiple options.
• MC-121841 – Command suggestion list doesn't update for partial words.
• MC-121848 – Command Suggestions' Background is not transparent.
• MC-121948 – The problem with the show commands.