Java Edition 1.17

1.17, the first release of the Caves & Cliffs update, is a major update to with no set release date so far. It was first announced during Minecraft Live 2020 on October 3, 2020.

Sculk block

 * Sculk sensor
 * Can be used for wireless redstone

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

Lush caves

 * Generate below Azalea trees

Improved general cave generation

 * "spaghetti" and "swiss cheese" carving
 * local water levels
 * some caves are entirely underwater
 * lakes and waterfalls more common
 * boat traversal now possible

Dripstone caves

 * Contain stalactites (which can fall) or stalagmites (which act as spikes)

General

 * New mountain features voted from Minecon Live 2019
 * Goats
 * Revamped mountain generation
 * Powdered Snow