From Minecraft Wiki
July 14, 2010
Alpha v1.0.5_01 is a version that made changes to snow introduced in Alpha v1.0.5.
- Harvesting snowballs requires a shovel.
- Snowballs now stack into stacks of 8 instead of 64.
- Water can now freeze into ice.
- The sound effect for throwing a snowball has been changed.
- Snow blocks on top of snow no longer looks weird.
- Multiplayer improvements (although multiplayer is still in private testing).
1 bug fixed
- Blocks now yield material on a pickaxe's last hit.
- Snow blocks on top of snow layers no longer look strange.