This page documents the changes from the last stable Minecraft release (currently 1.4.4, protocol 49) to the current pre-release (or weekly release).
Held Item Change (0x10)
Sent when the player changes the slot selection, Server sends it when you travel to a different dimension.
|Packet ID||Field Name||Field Type||Example||Notes|
||The slot which the player has selected (0-8)|
|Total Size:||3 bytes|
Changed Data Types
Protocol version is now 50. Packet 0x10 is sent both ways. Packet 0x17 has two new bytes, currently unknown.