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Release date

October 17, 2012[1]

Snapshot for




Protocol version


12w42a is the fourteenth snapshot released for 1.4.2.


  • Server IPs can now be individually hidden
  • Changed repeaters
    • When powering the either side of a repeater directly with another repeater, it will lock the current state of the other repeater until the signal to the powering repeater is turned off.
      • If a repeater that is on is locked, it will stay on.
      • If a repeater that is off is locked, it cannot output a signal
    • When locked, the repeater's second torch will no longer be visible and a bar textured similarly to bedrock will appear


9 bugs fixed

  • Fixed very damaged anvils dropping from at least 6 blocks becoming a glitched entity that cannot be removed until the map is reloaded
  • Fixed digging straight down glitching the player into blocks again
  • Fixed PvP-disabled servers still allowing players to set other players on fire using Fire Aspect enchanted swords
  • Fixed dropping from low heights doing damage on certain occasions
  • Fixed dropping an anvil on an end crystal crashing the game
  • Fixed the game sometimes crashing when using F3+H to show durability on items and then moving the mouse over a non-blank map
  • Fixed the game crashing when maximizing the game while in the anvil UI
  • Fixed a stack overflow error when dispensers attempted to place water or lava into a solid block
  • Fixed the crafting table and cauldron that spawn in Swamp Huts spawning at the top of the hut.