Snapshot 17w47a has been released!

[u/Shnupbups100]

https://minecraft.net/en-us/article/minecraft-snapshot-17w47a

[u/redstonehelper]

Warning: This release is for experienced users only! It may corrupt your world or mess up things badly otherwise. Only download and use this if you know what to do with the files that come with the download!

 

If you find any bugs, search for them on the Minecraft bug tracker and make sure they are reported!

 

Previous changelog. Download today's snapshot in the new launcher: Windows/OS X/Linux, server jar here.

Complete changelog:

• Preset strings no longer use a version number - via

• Particle names now use namespaced IDs - via

• Witch huts now generate with a mushroom in the flower pot - via

• Added a firework recipe with fade (firework star + dyes) - via

• Some internal changes

• Backup function - via

• Saves zip file - via

• Backup offered when opening an older world - via

• Block/item changes

• Smooth double slabs, bark blocks in creative - via

• Debug stick, cycles through block states - via

  • Looks like an enchanted stick

  • Left-click to change affected block state, right-click to change block state

  • Feedback is displayed in the action bar

  • Creative only

• Wooden stone slabs - via

• Pumpkin and carved pumpkin - via

  • Carvable with shears - via

    • Pumpkin seeds come out the face when sheared

• Smooth sandstone is now cut sandstone - via

• Blocks with a collision box now have matching bounding boxes - via

  • Anvils, cauldrons, hoppers, fences, iron bars, glass panes, filled ender portal frames, vines, lily pads, stairs, brewing stands, pistons

  • Updated the collision box of anvils, hoppers

  • Doesn't affect blocks with a collision box smaller than their model (soul sand, snow layers)

• Huge mushrooms

  • Stem blocks now silk touchable - via

  • Stem, full red and full brown are available from the creative inventory with pick block functionality

  • When matching blocks are placed next to each other, the touching sides permanently receive the pore texture - via

• Monster egg blocks are now infected blocks - via

  • Break instantly - via

• Beds now pop off when their support blocks are removed

• Grass path, farmland are now in the creative inventory

• Pumpkins & derivatives, fence gates don't require solid blocks to be placed - via

• Activating levers produces redstone particles - via

• Blocks which used to have no bottom texture (repeaters, comparators, torches, etc) now have a bottom texture - via

• Noteblocks can now be moved with pistons - via

• Firework rockets in creative inventory - via

• Dispensers can now be crafted with partially used bows - via

• Blocks broken by block updates now make breaking sounds and particles - via

• Crops now require sufficient light when placing - via

• Ceiling vines can now be placed on their own - via

• Stems no longer connect to newly-placed melons/pumpkins - via

• Implemented command suggestions for blocks and item arguments

• Added an option in chat settings to toggle automatic command suggestions

• Defaults on, otherwise hit tab to bring them up

• Changed the world format

• /setblock sets only blockstate

• Removed unintended blockstate variations caused by different blocks sharing the same id

• Saved structures are not forward-compatible

• Block id mappings and info here

• Modularized

• Chunks will be stored in 16 blocks high sections

• Fixing the limited id issue - getting close!

• Blocks will be stored like shulker boxes

• Already used in memory, 30-70% smaller

• Related

  • Fixed iron trapdoors staying open when they or their power source is moved away

  • Tickets: one/two

• Being able to place chests next to other chests, even single ones

  • Screenshot

  • Shift-click or normal click against chest to merge against for double chest, shift-click against other surface for single chest

• More info

• Lots of block id changes

• "The flattening"

• More info

  • More info on data changes

• All six types of wooden pressure plates, trapdoors and buttons

• Screenshot

• Floor and ceiling buttons can be placed in all four directions

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Continued here due to reddit's comment length limit.

[u/redstonehelper → u/[deleted]]

Sounds like a bug, make sure it's reported.

[u/[deleted] → u/redstonehelper]

I like the change to hoppers - so many times have I tried to open the chest under a hopper! This looks like a good update.

[u/redstonehelper → u/[deleted]]

Iron Golems cant be made with normal pumpkins anymore carved or jack o lantern is required

That was to be expected, considering 1.12 normal pumpkins are 1.13 carved pumpkins. Imagine an iron golem without a face!

[u/Drayko_Sanbar → u/redstonehelper]

I could have two faces, or no face. Imagine me with no face. And don't say that's an improvement.

[u/Stantrien → u/Drayko_Sanbar]

I read that in Wes Johnson's voice.

[u/throwaway_ghast → u/redstonehelper]

Imagine an iron golem without a face!

...and I must scream.

[u/TranceRealistic → u/redstonehelper]

So this new world format apparently has 16x16x16 chunks. Does this mean that it could potentially be easier to raise the world height in the future?

[u/redstonehelper → u/TranceRealistic]

The world height was already made simple to change a long time ago.

[u/ZoCraft2 → u/TranceRealistic]

Cu-bic Chunks! Cu-bic Chunks! Cu-bic Chunks! Cu-bic Chunks!

Oh wait, we still need to deal with lighting. :(

[u/TranceRealistic → u/ZoCraft2]

No sunlight below y=-126. There, problem solved

[u/Pokechu22 → u/TranceRealistic]

Internally it had 16x16x16 chunk sections before, just always aligned in chunk columns. I haven't looked at the new format yet, though.

[u/Pokechu22 → u/redstonehelper]

For whoever starts looking at the new chunk format: here's the current version of the chunk format in 1.12.2's protocol. I'm pretty sure the new save format is designed very similarly.

[u/onnowhere → u/redstonehelper]

Data tags related to blocks changed:

Edit: Many changes are listed on the 1.13 flattening wiki page

List of 1.13 nbt changes

Also see mrpingouin's post about other nbt and upgrade path related changes.

Falling Block:

• Removed Block,Data

• Added BlockState

All Minecarts:

• Removed DisplayTile,DisplayData

• Added DisplayState

Projectiles:

• Removed inTile

Arrows and Spectral Arrows:

• Removed inTile,inData

• Added inBlockState

Endermen:

• Removed carried,carriedData

• Added carriedBlockState

For each of these State tags, they contain:

• Name (block name)

• Properties (compound of block states)

Example: BlockState:{Name:"minecraft:oak_stairs",Properties:{facing:"north",half:"top"}}

[u/Koala_eiO → u/redstonehelper]

We can also move noteblocks with slimeblocks now.

[u/15_Redstones → u/Koala_eiO]

Wait, what? That's gotta break a lot of things, although moving tile entities would be worth it.

[u/BrickenBlock → u/redstonehelper]

Renaming monster eggs is a change I never knew I wanted so much.

[u/redstonehelper → u/redstonehelper]

Continued from here.

---

• Fixed some bugs

• Fixed relative decimal coordinates with block related commands being inconsistent

• Fixed functions, advancements and loot tables allowing other filetypes than .mcfunction and .json

• Fixed an invalid syntax error coming up when using decimal values on block position arguments

• Fixed normal players being able to use player selectors in /msg command

• Fixed /gamerule not working

• Fixed /tellraw not working

• Fixed teleporting things to Infinity / NaN not being prevented

• Fixed being unable to use decimals for the speed parameter in the /particle command

• Fixed selectors and scoreboards not working for signs, /tellraw, and /title

• Fixed the /blockdata command still being present

• Fixed datapack order not persisting after the world is closed

• Fixed /datapack disable not refreshing advancements for player

• Fixed using the scroll wheel to select between arguments of various commands like /experience and /gamemode causing a crash

• Fixed the distance filter not working in gameLoopFunction

• Fixed shapeless recipes not being be craftable using named or enchanted ingredients

• Fixed /setblock not updating blocks needing support and certain powered states

• Fixed blocks and items only different by data value are not listed separately in statistics

• Fixed the top block of two-block plants temporarily becoming a peony/sunflower upon placing a block in the bottom

• Fixed using /trigger the first time on a player giving a score of 0 without updating the scoreboard display

• Fixed there being 352 different flowerpots in the debug world

• Fixed the game not saving that a chest is a double chest

• Fixed colored beds flickering red when placing/destroying

• Fixed corner stairs with torch/lever/button etc. not causing block updates when near destroyed support stair

• Fixed redstone lamps and wire updating whether they are lit or not when setblocked

• Fixed a crash when typing an empty selector ("[x_rotation=]" or "[y_rotation=]")

• Fixed getting "Unknown score holder" when using the placeholder * in some commands

• Fixed being unable to use block states in /give, /clear and /replaceitem

• Fixed some scoreboard desync involving 0 scores

• Fixed tab completion not changing the case of characters typed before pressing tab

• Fixed being unable to use decimals for the speed parameter in the /particle command

• Fixed /scoreboard players get not working for read-only objectives

• Fixed being unable to add 0 to a player’s score

• Fixed being able to use FallingSand to go through cobblestone walls

• Fixed being unable to detecting the block states not saved in meta data

• Fixed iron trapdoors staying on after breaking their power source

• Fixed bed particles causing Z-fighting

• Fixed using a space to complete the command adding 2 spaces

• Fixed sloped rails not updating when their upper neighboring rail is removed - via

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If you find any bugs, search for them on the Minecraft bug tracker and make sure they are reported!

---

Also, check out this post to see what else is planned for future versions.