Alpha v1.2.1

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Alpha v1.2.1
Server version


Release date

November 5, 2010



Alpha v1.2.1[1] is a version of Alpha released on November 5, 2010, to fix bugs. Although the launcher claims to have this version available, the version listed is just a duplicate of Alpha v1.2.1_01.[2]


  • Mob spawning reverted to old code.
  • Leaf particle colors now reflect the biome instead of the grayscale texture.


4 bugs fixed
  • Signs on the sides of cacti no longer crash the game
  • Fixed the player getting stuck in the top of the world in SMP.
  • Optimized CPU usage for mob spawning
  • Music now plays in multiplayer


  1. "Minecraft Alpha 1.2.1, Minecraft Server 0.2.3" – The Word of Notch, November 5, 2010.
  2. MCL-9282
Promotional Content