Minecraft Snapshot 20W19A institute Bastion Remnants – Full patch notes

Since the Nether Update creeps ever nearer, Minecraft is becoming another Snapshot of the upcoming material for one to research. Snapshot 20W19A introduces some exciting things that is new. Bear in mind, Snapshots therefore are more prone to change at any moment and are content. Might not make it.

Bastion remnants, portals that were destroyed, chain blocks, and also a brand new song for the Piglins have been included in this Snapshot. Four forms of bastion remnants are added, such as a treasure space, homes, along with bridges. You’re able to take the bastions over, but may have some thing to say about that.

You can find the notes under:


  • Added bastion remnants
  • Added ruined portals
  • Added chain blocks
  • Added a new music disc titled “Pigstep” by Lena Raine which can only be found in bastions


What’s made of blackstone and full of Piglins and Hoglins? Bastion remnants!

  • ​Added 4 separate bastion remnant types: bridge, Hoglin stable, housing units, and treasure room
  • You can find these sizable structures in all biomes in the Nether except the treacherous ash-dusted towers of basalt deltas
  • Explore, loot, and conquer a bastion remnant to call it your home… but beware, Piglins don’t take kindly to intruders stealing their things


Shattered remains of ancient nether portals. Wonder who built them?​

  • They can be found in any overworld or nether biome
  • Some are hidden underground, under the sea, or buried in sand


  • Increased the amount of lava pools to make the deltas more “deltary”
  • The Piglin banner pattern can now be found in bastions


  • 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


It is now possible to monitor the server tick times though JMX.
The rationale for this is that JMX is a well known and supported monitoring technology with existing integrations and tools.

This enables server admins to hook alerts and graphing tools using ordinary JMX clients and dashboards.


  • A new flag enable-jmx-monitoring has been added to the file which if set to true will expose an MBean with the Object name net.minecraft.server:type=Server and two attributes averageTickTime and tickTimes exposing the tick times in milliseconds.
  • In order for enabling JMX on the Java runtime you also need to add a couple of JVM flags to the startup as documented here.


  • 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


Snapshots are available for Minecraft: Java Edition. To install the snapshot, open up the Minecraft Launcher and enable snapshots in the “Installations” tab.

Snapshots can corrupt your world, so please backup and/or run them in a different folder from your main worlds.

Cross-platform server jar:

  • Minecraft server jar

Report bugs here:

  • Minecraft issue tracker!

Want to give feedback?

  • Head over to our feedback website or come chat with us about it on the official Minecraft Discord.
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