Java Edition 17w45b
Minecraft 17w45b


| Edition | |||||||
|---|---|---|---|---|---|---|---|
| Release date |
November 10, 2017 | ||||||
| Type | |||||||
| Snapshot for | |||||||
| Downloads | |||||||
| Protocol version |
344 | ||||||
| Data version |
1448 | ||||||
| Resource pack format |
3 | ||||||
| Minimum Java version | |||||||
| |||||||
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"title": "Minecraft 17w45b",
"images": [
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"Java Edition 17w45b.png"
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"field": "(link to Snapshot article, displayed as Snapshot)",
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"field": "[https://piston-data.mojang.com/v1/objects/83e5c3728b473a8d5afda12906a3e581888489fd/client.jar Client] ([https://piston-meta.mojang.com/v1/packages/f9acb09376005f47f647ebb8bc687e5ba9e515ec/17w45b.json .json])<br />[https://piston-data.mojang.com/v1/objects/eec0c6c49b1066b648f39e1dcef8c76510a794dc/server.jar Server]",
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"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 resource 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 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 17w45a|◄ 17w45a]]\n</td>\n<td style=\"padding: 0.4em\">''' 17w45b'''</td>\n<td style=\"padding: 0.4em\">\n[[Java Edition 17w46a| 17w46a ►]]\n</td>\n</tr>\n</table>"
}
17w45b is the fourth snapshot for Java Edition 1.13, released on November 10, 2017[1], which added the /data command.
Additions
Command format
/data
- A command that allows the player to get, merge, and remove entity and block NBT data.
/data get block <pos> [<path>] [<scale>]- Returns the NBT data from the block at
<pos>as itsresult(if a[<path>]is specified). A[<path>]can be specified to only retrieve that NBT data, but this is limited to numeric tags. An optional[<scale>]can be provided to scale the number retrieved.
- Returns the NBT data from the block at
/data get entity <target> [<path>] [<scale>]- Returns the NBT data from one
[<target>]entity as itsresult(if a[<path>]is specified). A[<path>]can be specified to only retrieve that NBT data, but this is limited to numeric tags. An optional[<scale>]can be provided to scale the number retrieved.
- Returns the NBT data from one
/data merge block <pos> <nbt>- Merges the block NBT data at
<pos>with the specified<nbt>data.
- Merges the block NBT data at
/data merge entity <target> <nbt>- Merges the entity NBT data from
<target>with the specified<nbt>data. Merging player NBT data is not allowed.
- Merges the entity NBT data from
/data remove block <pos> <path>- Removes NBT data at
<path>from the block at<pos>.
- Removes NBT data at
/data remove entity <target> <path>- Removes NBT data at
<path>from one<target>entity. Removing player NBT data is not allowed.
- Removes NBT data at
- Data paths look like this:
foo.bar[0]."A [crazy name]".baz.foo.barmeans foo's child called bar.foo[0]means element 0 of foo.- "quoted strings" may be used if a name of a key needs to be escaped.
- Examples of old commands:
/entitydata <target> {}is now/data get entity <target>/blockdata <pos> <nbt>is now/data merge block <pos> <nbt>
- Examples of new functionalities:
Changes
Command format
- Has been removed in favor of
/data.
/execute store
- Has been reworked.
/execute store (result|success) score <name> <objective> <chained command>- The value is stored into the scoreboard under
<name>and<objective>. - The
objectivemust exist, but unlike with/statsyou don't need to set an initial value for<name>.
- The value is stored into the scoreboard under
/execute store (result|success) block <pos> <path> (byte|double|float|int|long|short) <scale> <chained command>- The value is stored in the NBT data at
pathof the block atposas a byte, double, float, int, long, or short.
- The value is stored in the NBT data at
/execute store (result|success) entity <target> <path> (byte|double|float|int|long|short) <scale> <chained command>- The value is stored in the NBT data at
pathof onetargetentity as a byte, double, float, int, long, or short.
- The value is stored in the NBT data at
- Data paths look like this:
foo.bar[0]."A [crazy name]".baz.foo.barmeans foo's child called bar.foo[0]means element 0 of foo.- "quoted strings" may be used if a name of a key needs to be escaped.
- Examples:
/execute if <...>
- Now returns success and result values if used on its own, without a sub-command.
Fixes
From released versions before 1.13
- MC-80400 – Sizelimited entity selectors (@e with c=1,@r with type=!entity) in commands prefer players.
- MC-87799 –
/executedetect functions inconsistently with semi- (snow layer, grass path, soul sand, farmland) blocks. - MC-98244 – Same UUID infinite times possible + changing UUID possible via entitydata.
- MC-106681 – Scoreboard teams leave doesn't work if first player fails.
- MC-111704 – Players can input any value in [old block handling] of setblock and fill.
- MC-114721 – Title command treats invalid second argument as "title".
- MC-117933 –
/clonecommand treats invalid optional arguments as if they were default.
From the previous development version
- MC-121623 – Cannot use namespace in type= for selectors.
- MC-121627 – @s fails to build valid commands.
- MC-121635 – Incorrect failed
/fillresult message. - MC-121637 – Incorrect result message when teleporting a single entity.
- MC-121642 – "Optional" commands following conditional execute chain succeed/fail strangely.
- MC-121647 – JRE Fatal Error when joining multi-player server.
- MC-121655 – Incorrect message when teleporting single entity.
- MC-121656 – Some creative commands are available by a survival player with cheats disabled.
- MC-121660 – distance argument can't find players with @a, @p or @e[type=player].
- MC-121663 – Gamerules are copying from other worlds.
- MC-121674 – Execute doesn't work in functions.
- MC-121683 – -= isn't a valid operation in scoreboard players operation.
- MC-121686 – Execute unless always fails on entities.
- MC-121695 – Tellraw only supports 1 target.
- MC-121711 – @a or @s doesn't include dead player.
- MC-121726 – Only players can teleport with relative coordinates.
- MC-121727 – Execute on multiple entities cancels, once one command fails.
- MC-121728 – The order, in which execute runs the command for each entity, is in reverse.
- MC-121749 –
/entitydatadoes not apply modified NBT data. - MC-121765 – Removing n scoreboard points adds them instead.
Video
Video made by slicedlime:
References
- ↑ "Minecraft Snapshot 17w45a" – Minecraft.net, November 8, 2017.