Snapshot2a is the first snapshot in the second update. Lots of things were changed, including the textures. New things were added too. Huge snapshot.
This food can be crafted from milk and moon plant. Currently, it is very buggy but it should make you fly.
A new ore is on the moon! Moon shards can be crafted into moon crystals, which will be used for swords and stuff.
There is now moon crystals, which can be crafted into tools and armor. Moon crystals are about as powerful as diamond/iron.
Changed textures of a lot of moon blocks.