Java Edition 1.17

1.17, the first release of the Caves & Cliffs update, is a major update to set to release in the summer of 2021. It was first announced during Minecraft Live 2020 on October 3, 2020. Most things are unconfirmed.

Blocks
Amethyst Geode


 * Make bell-like sounds
 * Are very rare
 * Grow from another unobtainable block
 * Drop crystal shards, which can be crafted into a Telescope


 * Copper


 * Turns green over time, like real copper.


 * Copper Ore
 * Copper Block
 * Copper Stairs
 * Copper Slab

Clay Pots


 * customizable
 * designed fixed by lighting fire under the pots

Glow berries


 * Light source

Spore blossom

Dripleaf

Sculk block


 * Sculk sensor
 * Can be used for wireless redstone


 * Stalactites and stalagmites


 * Stalactites can drip water to fill cauldrons


 * Stalagmites can deal damage

Lightning Rod


 * crafted with copper


 * Powdered Snow

Items
Telescope


 * Crafted from crystal shards and copper
 * when held, allows the player to see far away in a small circle

Bundle


 * can hold multiple different types of items in one slot
 * displays the items inside when hovered over in the inventory
 * intended to address the inventory clogging up with small numbers of different items

Brush

Axolotl Bucket

Mobs
Axolotl


 * Aquatic creature found in bodies of water within the Lush Caves.
 * Can be caught in a bucket like fish.
 * Comes in different colours.

Warden


 * This mob appears deep underground and will attack the player when they sense movement.
 * Blind but follows sources of noise such as snowballs hitting blocks.
 * It is incredibly strong and is able to kill you very easily even if wearing netherite armor.
 * It is blind and won’t attack you straight away.

Goat


 * Spawn in mountainous biomes.
 * Part of Minecon Live 2019's mountain features.
 * Can jump very high into the air to avoid obstacles.
 * Attacks some animals and knocks them very far away.

Glow Squid
 * Was voted into the game by the community.
 * Originates from Minecraft Earth.
 * has bright texture

World generation
Lush caves


 * Generate below Azalea trees.
 * contain glow berries.

Dripstone caves


 * Contain stalactites and stalagmites

Excavation sites (structure)


 * Improved general cave generation

Gameplay
Archaeology

Trivia

 * The axolotl was added after the track of the same name by C418. They are small mexican salamanders which are critically endangered.