Protocol version 2208

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Packet 21

UpdateBlockPacket

Occasional packets sent from server when blocks update or are ticked. (For example, when digging.)

This happens often. Luckily, the packets are small.

Packet datagramWire order
HeaderID 21varuint
0Block PositionBlockPos · variable
1Block Runtime IDvaruint32 · variable (up to 5 bytes)
2Flagsvaruint32 · variable (up to 5 bytes)
3Layervaruint32 · variable (up to 5 bytes)

Serialized fields

4 top-level fields
  1. 0Block PositionBlockPos
    1. 0XCompressionvarint32
    2. 1YCompressionvarint32
    3. 2ZCompressionvarint32
  2. 1Block Runtime IDCompressionvaruint32
  3. 2FlagsCompressionvaruint32
  4. 3LayerCompressionvaruint32

Changelog

Stable releases

Changes between stable protocol releases.

No stable release changes are recorded for this packet.