Java Edition 21w19a

21w19a is the twenty-first snapshot for Java Edition 1.17, released on May 12, 2021, which increases the minimum Java to 16.

Command syntax

 * New syntax:
 * Same as old.
 * Copies item for source to target(s), optionally applying modifier.
 * Modifies item (without copying).
 * Copies item for source to target(s), optionally applying modifier.
 * Modifies item (without copying).
 * Modifies item (without copying).
 * Modifies item (without copying).

General

 * Tags
 * Added, , , and block tags.
 * Blocks with these tags can be destroyed more quickly with the matching tool.
 * Added, , and block tags.
 * If a block requires the correct tool to drop, these tags determine which tier of that tool is required.

Blocks

 * Anvils
 * The maximum length a name of an item can have after being renamed has being increased to 50.

World generation

 * Geodes
 * Made geodes significantly rarer.

General

 * Creative Inventory
 * Removed some unfinished items, include Sculk Sensor, Bundle and Candle, but still can be obtained via command.


 * Recipes
 * Removed some unfinished items, include Bundle and Candle.
 * These recipes only available when Cave & Cliffs Preview Datapack enabled.

Technical

 * Other
 * Java version requirement increased to 16.