Java Edition 18w19a

18w19a is the thirty-third snapshot for 1.13 that was released on May 8, 2018.

Additions

 * General


 * New Buffet generation type: Caves
 * Similar to the Nether generation.

Changes

 * Due to changes in world generation, worlds from previous snapshots will no longer work
 * All undead mobs now sink
 * Skeleton horses are rideable underwater
 * Changed names of several biomes
 * Sea grass now generates in underwater caves
 * New sounds for conduit and beacon
 * Phantoms now flap their wings smoother and faster
 * Improved the upgrade paths from old versions
 * The output of the command can now be copied
 * Updated the credits list