Minecraft snapshot 23w43a patch notes: New copper blocks, tuff blocks, bat revamp, and more

It's Wednesday, October 25, meaning a new snapshot is now available. Minecraft Java snapshot 23w43a offers several new experimental features that players have been eagerly awaiting since Minecraft Live 2023. In that livestream, Mojang revealed many interesting copper and tuff blocks. This latest Minecraft snapshot 23w43a has added all those announced blocks to the game.

With this release, players can finally discover crafting recipes and uses for the new copper and tuff blocks. Additionally, it features changes to bats, ender pearls, and many bug fixes. For all interested players, here are the patch notes for Minecraft snapshot 23w43a:

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Mineraft snapshot 23w43a patch notes for Java Edition

New features in Minecraft snapshot 23w43a

Experimental features

Copper family

The Copper family of blocks has been expanded, including:

• Chiseled Copper
• Copper Grate
• Copper Bulb
• Copper Door
• Copper Trapdoor
• Oxidized and waxed variants of all of the above

Chiseled copper

• Crafted with 2 Cut Copper Slabs of a shared oxidation level
• Can be crafted in the Stonecutter

Copper grate

• A new type of decorative block unique to the Copper family
• Crafted with 4 Copper Blocks of a shared oxidation level
• Can be crafted in the Stonecutter

Properties:

• Transparent and allows light to pass through
• Mobs cannot suffocate inside them
• Cannot conduct redstone
• Hostile mobs cannot naturally spawn on them

Copper bulb

Copper bulb is a light-emitting block coming in Minecraft 1.21 update that can toggle its light emission through redstone pulses.

• Oxidizes like other Copper blocks, and emits less light the more oxidized they are
• Copper Bulb: Light level 15
• Exposed Copper Bulb: Light level 12
• Weathered Copper Bulb: Light level 8
• Oxidized Copper Bulb: Light level 4
• When placed, its light is off by default
• While the Copper Bulb is unpowered, it will toggle its light on or off when it receives a redstone pulse
• Copper Bulb light will stay on even when the redstone source is removed until it receives another redstone pulse to toggle it off
• A redstone crystal will glow in the center of Copper Bulbs while it is powered by a redstone signal
• Comparators will read a signal strength of 15 if the Copper Bulb's light is on
• Does not conduct redstone power

Players can craft 4 Copper Bulbs with:

• 3 Copper Blocks of a shared oxidation level
• 1 Blaze Rod
• 1 Redstone Dust

Copper doors and trapdoors

• Copper variants of Doors and Trapdoors that can oxidize over time and be waxed
• Works like wooden doors in that they can be opened and closed with interaction as well as redstone
• Crafted with Copper Blocks of a shared oxidation level

Tuff family

Tuff has been expanded to have its own family of blocks, including:

• Stair, Slab, Wall and Chiseled variants
• Tuff Bricks with Stair, Slab, Wall and Chiseled variants
• Polished Tuff with Stair, Slab and Wall variants
• All Tuff variants can be crafted in the Stonecutter

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Changes

• The Bat now has a new look
• Thrown Ender Pearls produce a teleportation sound on impact
• Small tweaks to the Telemetry Data Collection screen

Bat

• The Bat has an updated model, animations and texture

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Fixed bugs in Minecraft snapshot 23w43a

The following bugs have been fixed in Minecraft snapshot 23w43a:

• All arrow types lose their name/NBT data when shot and picked up
• The game takes a long time to process players leaving realms groups or accepting or declining realms invitations
• The operator buttons intersect the scroll bar within the realms player menu
• You cannot click on an area to set a value within the spawn protection slider in the realms world options menu
• You can configure your realm before it has been created by using the TAB key
• The word "available" is misspelled as "availible" within the "recover_world.no_fallback" string
• Right-clicking and keyboard input can disable or enable slots in the crafter
• The subtitle for Crafters crafting something uses inconsistent tense
• The word "occurred" is misspelled as "occured" within the "recover_world.message" string
• Extra space in the word "cannot" in selectWorld.incompatible.description
• The built-in update_1_21 pack contains duplicate files from the vanilla pack
• Placing items into the crafter output slot deletes them
• Additional lines appear on the crafter's face when it crafts
• The translation for "gamerule.commandModificationBlockLimit" is in title case instead of sentence case
• Comparator sometimes doesn't update when crafting with the Crafter
• Elements within the list in the "Changes From Last Backup" realms menu cannot be selected via the mouse cursor
• The "No pending invites!" text within the realms invitation menu cannot be narrated or selected
• Inconsistent pixels near light on the crafter's side

Apart from new experimental features, changes, and bug fixes, Minecraft snapshot 23w43a includes some technical features as well as changes — such as a new tick command, jigsaw block modifications, and more. Interested players can find more details regarding this snapshot's patch notes by clicking the link in the tweet above.