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Java Edition 1.9.3

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Minecraft 1.9.3
1.9.3 blog post image.png
Release 1.9.3.png

Java Edition

Release date

May 10, 2016

Development versions

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Client (.json)

Protocol version


Data version


1.9.3 is a minor update to Minecraft (Java Edition) released on May 10, 2016,[1] which adds the /stopsound command, limits the y-value of /tp, and improves Minecraft 's networking libraries. It is not compatible with 1.9.2 servers.



  • Permits the player to choose which specific sounds should be stopped from playing.
    • Syntax: /stopsound <player> [<source>] [<sound>].



  • No longer teleports the player to a y-coordinate outside the range −512 to 512.


  • As of the release of this version, the Netty networking library that Minecraft uses, now checks sessionserver.mojang.com/blockedservers when connecting to a multiplayer server, and if the server is on the blocked server list, it reports to the user that the server is unavailable.
    • The blocklist consists of servers in violation of the Minecraft EULA (End User License Agreement).
    • This affects all versions that depend on the Netty library, back to version 1.7.2 snapshot 13w41a.
  • Better memory use of pathfinding and biome caching.
    • This prevents memory leaking.


12 issues fixed
From released versions before 1.9
  • MC-17630 – Zombie pathfinding to unreachable targets causes server lag.
  • MC-82464 – Colored 'dead' skin template parts cause in-game issues.
From 1.9
  • MC-87907 – Endermen do not become aggressive when players look at their head/feet.
  • MC-88357 – Crash when going outside height limit or into the void with F3.
  • MC-89760 – Skin's jacket parts do not show up under specific conditions.
  • MC-94438 – Server: Mob pathfinding induced massive lag in any versions 15w49a and later.
  • MC-96526 – Crash caused by StackOverflowError when trading too many items at once.
  • MC-98994 – Chunk generation performance regressed by 20–30%.
From 1.9.1
From 1.9.2
  • MC-100382 – Pathfinding memory leak.
  • MC-100410 – Corrupting world by teleporting to y=±infinity.
  • MC-100442 – DEV – navigation listener very slow code.


Video made by slicedlime:


  1. "Minecraft 1.9.4" – Mojang.com