Java Edition 20w49a

20w49a is the fourth snapshot for Java Edition 1.17, released on December 2, 2020, which adds sculk sensors and the dripstone caves biome.

Blocks

 * Sculk Sensor

World generation

 * Dripstone Cave
 * A new biome that generates underground.
 * Made up of primarily dripstone blocks and stone, with large clusters of dripstone blocks hanging from the ceiling, pointed dripstone on the floor and ceiling and many pools of water.
 * Does not generate naturally in normal worlds yet, can only be found on single biome worlds with the Dripstone Caves selected.

General

 * Tags
 * Added the block tag.
 * Contains the block tag and dirt.
 * Used in dripstone generation to determine what dripstone can replace and what pointed dripstone can generate on.
 * Added the block tag.
 * Contains the block tag.
 * Blocks in this tag will prevent sculk sensors from hearing vibrations if the block is between the sculk sensor and the vibration.
 * Added new tag type.
 * Added the game event tag.
 * Contains the step, falling, and shooting projectile events.
 * Game events in this tag will be ignore by sculk sensors if the source entity is sneaking.
 * Added the game event tag.
 * Contains every game event.
 * Game events in this tag will trigger sculk sensors.

Gameplay

 * Death messages
 * Added death messages for being skewered by a falling stalactite.
 * " was skewered by a falling stalactite"
 * " was skewered by a falling stalactite whilst fighting "