Java Edition 20w16a

20w16a is the twelfth snapshot for Java Edition 1.16, released on April 15, 2020, which adds bastion remnants, ruined portals, chain blocks, and a new music disc.

Blocks

 * Chains

Items

 * Music Discs
 * Added "Pigstep" music disc.
 * Unlike other music discs, this was made by Lena Raine instead of C418.
 * "Pigstep" can only be found in Bastion Remnants

World generation

 * Bastion Remnants
 * Generate in most Nether biomes, except Basalt Deltas.
 * Four types of structures generate.
 * Bridge
 * Hoglin Stable
 * Housing Units
 * Treasure Room
 * These are the only source of the "Pigstep" disc.
 * Piglins and Hoglins spawn here.
 * Ruined Portals
 * Shattered remains of ancient Nether Portals
 * Generate in the Overworld and Nether.
 * Can be buried underground or underwater

Changes

 * Increased the amount of lava pools on basalt deltas.
 * The Piglin banner pattern can now be found in bastions, making it obtainable in Survival
 * Added a button in the GUI that generates a jigsaw structure starting from the jigsaw block, using given generation depth.
 * Expanded the max size per axis of Structure Blocks from 32 to 48.
 * Added a JMX MBean to monitor dedicated server tick times
 * Changed texture of Quartz Bricks.

Fixes
MC-37557 - Sometimes a minecart sound plays/subtitle shown when loading a world

MC-91163 - Certain subtitles show up when the player is too far away to hear the sound

MC-154617 - Server hangs on stop due to rcon

MC-171020 - New nether biomes don’t work properly in buffet worlds

MC-175919 - Villagers sometimes stop farming

MC-177136 - All compasses and lodestone compasses point to the same target, regardless of what type of compass it is

MC-177238 - Windows symbolic link in saves/ is no longer followed as of 20w14a

MC-177253 - Running a set_attributes function throws java.lang.NullPointerException if it contains an undefined attribute

MC-177316 - Lodestone compass in item frame does not update after turning

MC-178368 - When rotating a lodestone compass is put in the item frame the compass don’t work