Minecraft wiki entry for Development_versions, associated text: New inventory icons for boats
Now include paddles
Different boat types' items now are their respective color
Nether Reactor blocks exist, but are rendered useless
Foods
Now restore hunger instead of health
Snow layers
Version exclusive: Builds up multiple layers naturally through snowfall
Version exclusive: Are now affected by gravity
Packed ice
New texture:
Dead bushes
Now drop 0—2 sticks when broken without shears