Java Edition Alpha v1.0.3

Alpha v1.0.3 was released to add new sounds and to change the behavior of mobs.

The release date is unknown, although the earliest known record of this version existing was uploaded to YouTube on July 8, 2010. Since Alpha v1.0.2_02's release date is unknown, and Alpha v1.0.2_01 was released on July 6, 2010, the earliest date this version could have been released was July 6, 2010.

Additions

 * Hostile mob sounds.
 * Prior to this update, they shared the player's hurt sound.
 * Ambient cave sounds.

Changes

 * Mob pathfinding has been improved on hills, except for spiders.
 * Generally more convincing mob idling behavior. They stand still more often, looking around at their surroundings.