Alpha v1.2.4 (mislabeled as Alpha v1.2.3_05 in game^[1]) is a version of Alpha released on November 30, 2010,^[2] as the third part of a bug-fix update.

Additions

• Added proper hurt animations and sounds to mobs and players.

Changes

• The multiplayer join server screen now remembers the latest entered IP.
• Creepers now animate before exploding
  • Explosions animate properly.
• Increased chunk saving frequency on the server.
• The player can now see sneaking players. Names of sneaking players aren't visible through walls, and are visible at a much shorter distance.
• Buttons, levers, and pressure plates animate properly when activated.

Fixes

8 bugs fixed

• Leaving sneak mode no longer rapidly plays all the step sounds that it silenced during the sneak.
• Swords and other weapons now deal damage properly.
• Fixed dead players logging in as invisible ghosts
• Made arrows visible and deal damage.
• No more infinite free arrows.
• Hoes now produce proper seeds.
• Server logging now appends to server.log rather than overwriting it.
• Fixed minecarts and pigs moving twice as fast as they should when ridden.

Trivia

• When Notch released 1.2.4, he accidentally labeled it as 1.2.3_05 in game. This version also had leftover debug code that caused creepers to be the only mob that would spawn. This was later fixed with the release of 1.2.4_01, which means there was never a client version of 1.2.4.^[1]

References