Minecraft Wiki
Release date

April 17, 2015[1]


Client (.json)

1.8.4[2] is an update to Minecraft which was released on April 17, 2015 to fix various exploits and important security vulnerabilities,[3][4][5] as well as some other minor issues. 1.8.4 is compatible with 1.8 – 1.8.3 servers.[6]


  • Player head skins can no longer be loaded from arbitrary servers.[7]
    • They must now be loaded from the official Mojang servers.
  • Player head skin files are now required to be a .png file.
  • Traveling through a nether portal no longer places the player outside the portal.[8]
  • Pets no longer follow the player in spectator mode (wolf and ocelot).


15 issues fixed
From released versions before 1.8.4
  • MC-10979 – Hardcore single player has repeating screens and weird links
  • MC-46771 – Pets follow spectator
  • MC-49060 – Chest sticking open when teleported while GUI is up
  • MC-61758 – Vines no longer spread correctly in corners
  • MC-61895 – Crash when putting the default spawn egg in Monster Spawner
  • MC-68642 – Certain characters cannot be typed on certain keyboard layouts ("AltGr" behaving like "Ctrl")
  • MC-73504 – Nether portals place players two blocks beside the portal
  • MC-77371 – Mac OS X weird Keyboard when Native Fullscreen
  • MC-78020 – "User (formerly known as olduser) has joined" shows multiple times
  • MC-78491 – Custom player heads exposing player's IP address
  • MC-79152 – Security vulnerabilities involving skulls
  • MC-79468 – 3D item model glitch
  • MC-79612 – NBT accounting incorrectly allows for giant allocations of empty lists
Private issues
  • MC-78495 – Duplicating items[1]
  • MC-79079 – Malicious clients can force a server to freeze[1]