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| − | This page documents the changes from the [[Protocol|last stable Minecraft release]] (currently [[Protocol version numbers|1.13.2, protocol 404]]) to the current pre-release (currently [[Protocol version numbers|18w43b, protocol 441]]). Note that this page contains bleeding-edge information that may not be completely or correctly documented.
| + | There is currently a pre-release version available: 1.21-pre2, but it has not yet been documented. For the latest stable Minecraft release, see the [[Protocol|Protocol]] page. For previous pre-release pages, see the [[Protocol version numbers|Protocol version numbers]] page. |
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| | One who wishes to commandeer the merging of this into [[Protocol]] when an update is made must be sure to respect any changes that may have occurred to the respective packets there. | | One who wishes to commandeer the merging of this into [[Protocol]] when an update is made must be sure to respect any changes that may have occurred to the respective packets there. |
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| | === Packets === | | === Packets === |
| − |
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| − | {| class="wikitable"
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| − | ! ID
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| − | ! Packet name
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| − | !colspan="2"| Documentation
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| − | |-
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| − | !colspan="4"| Handshaking serverbound
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| − | {{PacketList|0x00|Handshake}}
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| − | |-
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| − | !colspan="4"| Play clientbound
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| − | {{PacketList|0x22|Chunk Data}}
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| − | {{PacketList|0x4E|Entity Sound Effect|rel=added}}
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| − | {{PacketList|{{change|0x4E|0x4F}}|Player List Header And Footer|pre=unchanged}}
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| − | {{PacketList|{{change|0x4F|0x50}}|Collect Item|pre=unchanged}}
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| − | {{PacketList|{{change|0x50|0x51}}|Entity Teleport|pre=unchanged}}
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| − | {{PacketList|{{change|0x51|0x52}}|Advancements|pre=unchanged}}
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| − | {{PacketList|{{change|0x52|0x53}}|Entity Properties|pre=unchanged}}
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| − | {{PacketList|{{change|0x53|0x54}}|Entity Effect|pre=unchanged}}
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| − | {{PacketList|{{change|0x54|0x55}}|Declare Recipes|pre=unchanged}}
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| − | {{PacketList|{{change|0x55|0x56}}|Tags|pre=unchanged}}
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| − | {{PacketList|0x57|Unknown 2|rel=added}}
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| − | |}
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| − |
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| − | == New/modified data types ==
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| − |
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| − | No changes so far.
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| − |
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| − | == Entity Metadata ==
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| − |
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| − | No changes so far.
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| − |
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| − | == Block Actions ==
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| − |
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| − | No changes so far.
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| − |
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| − | == Play ==
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| − |
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| − | === Clientbound ===
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| − |
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| − | ==== Chunk Data ====
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| − | {{Main|Chunk Format}}
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| − | {{See also|#Unload Chunk}}
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| − |
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| − | {{Need Info|Unknown changes}}
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| − |
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| − | The server only sends skylight information for chunk pillars in the {{Minecraft Wiki|Overworld}}, it's up to the client to know in which dimenison the player is currently located. You can also infer this information from the primary bitmask and the amount of uncompressed bytes sent. This packet also sends all block entities in the chunk (though sending them is not required; it is still legal to send them with [[#Update Block Entity|Update Block Entity]] later).
| |
| − |
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| − | {| class="wikitable"
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| − | ! Packet ID
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| − | ! State
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| − | ! Bound To
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| − | ! Field Name
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| − | ! Field Type
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| − | ! Notes
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| − | |-
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| − | |rowspan="8"| 0x22
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| − | |rowspan="8"| Play
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| − | |rowspan="8"| Client
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| − | | Chunk X
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| − | | Int
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| − | | Chunk coordinate (block coordinate divided by 16, rounded down)
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| − | |-
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| − | | Chunk Z
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| − | | Int
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| − | | Chunk coordinate (block coordinate divided by 16, rounded down)
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| − | |-
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| − | | Ground-Up Continuous
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| − | | Boolean
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| − | | See [[Chunk Format#Ground-up continuous|Chunk Format]]
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| − | |-
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| − | | Primary Bit Mask
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| − | | VarInt
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| − | | Bitmask with bits set to 1 for every 16×16×16 chunk section whose data is included in Data. The least significant bit represents the chunk section at the bottom of the chunk column (from y=0 to y=15).
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| − | |-
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| − | | Size
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| − | | VarInt
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| − | | Size of Data in bytes
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| − | |-
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| − | | Data
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| − | | Byte array
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| − | | See [[Chunk Format#Data structure|data structure]] in Chunk Format
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| − | |-
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| − | | Number of block entities
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| − | | VarInt
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| − | | Number of elements in the following array
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| − | |-
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| − | | Block entities
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| − | | Array of [[NBT|NBT Tag]]
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| − | | All block entities in the chunk. Use the x, y, and z tags in the NBT to determine their positions.
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| − | |}
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| − |
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| − | ==== Entity Sound Effect ====
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| − |
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| − | Plays a sound effect from an entity.
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| − |
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| − | {| class="wikitable"
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| − | ! Packet ID
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| − | ! State
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| − | ! Bound To
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| − | ! Field Name
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| − | ! Field Type
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| − | ! Notes
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| − | |-
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| − | |rowspan="7"| 0x4E
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| − | |rowspan="7"| Play
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| − | |rowspan="7"| Client
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| − | | Sound ID
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| − | | VarInt
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| − | | ID of hardcoded sound event ([https://pokechu22.github.io/Burger/1.13.2.html#sounds events] as of 1.13.2)
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| − | |-
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| − | | Sound Category
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| − | | VarInt Enum
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| − | | The category that this sound will be played from ([https://gist.github.com/konwboj/7c0c380d3923443e9d55 current categories])
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| − | |-
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| − | | Entity ID
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| − | | VarInt
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| − | |
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| − | |-
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| − | | Volume
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| − | | Float
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| − | | 1.0 is 100%, capped between 0.0 and 1.0 by Notchian clients
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| − | |-
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| − | | Pitch
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| − | | Float
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| − | | Float between 0.5 and 2.0 by Notchian clients
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| − | |}
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| − |
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| − | ==== Unknown 2 ====
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| − |
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| − | {{Need Info|?????}}
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| − |
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| − | === Serverbound ===
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| − |
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| − | No changes so far.
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| − |
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| − | == Handshaking ==
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| − |
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| − | === Clientbound ===
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| − |
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| − | There are no clientbound packets in the Handshaking state, since the protocol immediately switches to a different state after the client sends the first packet.
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| − |
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| − | === Serverbound ===
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| − |
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| − | ==== Handshake ====
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| − |
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| − | This causes the server to switch into the target state.
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| − |
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| − | {| class="wikitable"
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| − | ! Packet ID
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| − | ! State
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| − | ! Bound To
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| − | ! Field Name
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| − | ! Field Type
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| − | ! Notes
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| − | |-
| |
| − | |rowspan="4"| 0x00
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| − | |rowspan="4"| Handshaking
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| − | |rowspan="4"| Server
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| − | | Protocol Version
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| − | | VarInt
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| − | | See [[protocol version numbers]] (currently {{change|404|441}})
| |
| − | |-
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| − | | Server Address
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| − | | String
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| − | | Hostname or IP, e.g. localhost or 127.0.0.1, that was used to connect. The Notchian server does not use this information.
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| − | |-
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| − | | Server Port
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| − | | Unsigned Short
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| − | | Default is 25565. The Notchian server does not use this information.
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| − | |-
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| − | | Next State
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| − | | VarInt Enum
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| − | | 1 for [[#Status|status]], 2 for [[#Login|login]]
| |
| − | |}
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| − |
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| − | == Status ==
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| − |
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| − | === Clientbound ===
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| − |
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| − | No changes so far.
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| − |
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| − | === Serverbound ===
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| | | | |
| | No changes so far. | | No changes so far. |
| − |
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| − | == Login ==
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| − |
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| − | === Clientbound ===
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| − |
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| − | No changes so far.
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| − |
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| − | === Serverbound ===
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| − |
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| − | No changes so far.
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| − |
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| | | | |
| | [[Category:Minecraft Modern]] | | [[Category:Minecraft Modern]] |
