Java Edition 13w06a

13w06a is the ninth snapshot released for Java Edition 1.5, which adds the minecart with spawner.

13w06a was reuploaded later on February 7, 2013, to fix a crash on the loading screen and an issue where all minecarts had turned into minecarts with spawners.

Non-mob entities

 * Minecart with spawner
 * NBT structure is 100% the same as with normal mob spawners.
 * It is not an obtainable item, but can only be added as an entity with external editors.

Blocks

 * Fences
 * The hitboxes of fences with inner corners have changed - they now much more closely match the shape of the fence itself, rather than being its convex hull (a solid cuboid).

General

 * Lighting
 * Some new lighting optimizations.

General

 * Distance effects
 * Fence block collision boxes no longer lose precision at extreme coordinates.
 * This is without a doubt linked to the hitbox changes mentioned above.