Difference between revisions of "Pre-release protocol"

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(Uncomment the handshake part and add the 2 packets to the list)
(Updated to 1.21-pre2)
 
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This page documents the changes from the [[Protocol|last stable Minecraft release]] (currently [[Protocol version numbers|1.10.2, protocol 210]]) to the current pre-release (currently [[Protocol version numbers|16w32a, protocol 301]]). Note that this page contains bleeding-edge information that may not be completely or correctly documented.
+
This page documents the changes from the [[Protocol|last stable Minecraft release]] (currently [[Protocol version numbers|1.20.6, protocol 766]]) to the current pre-release (currently [[Protocol version numbers|1.21-pre2, protocol {{Snapshot PVN|1073742024}}]]). Note that this page contains bleeding-edge information that may not be completely or correctly documented.
  
 
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.
Line 9: Line 9:
 
=== Data types ===
 
=== Data types ===
  
−
No changes so far.
+
No changes documented so far.
  
 
=== Packets ===
 
=== Packets ===
−
 
−
No changes so far.
 
  
 
{| class="wikitable"
 
{| class="wikitable"
Line 20: Line 18:
 
  !colspan="2"| Documentation
 
  !colspan="2"| Documentation
 
  |-
 
  |-
−
  !colspan="4"| Handshaking serverbound
+
  !colspan="4"| Configuration clientbound
−
  {{PacketList|0x00|Handshake}}
+
  {{PacketList|0x0F|Clientbound Report Details (configuration)|rel=added}}
 +
{{PacketList|0x10|Clientbound Server Links (configuration)|rel=added}}
 
  |-
 
  |-
 
  !colspan="4"| Play clientbound
 
  !colspan="4"| Play clientbound
−
  {{PacketList|0x03|Spawn Mob}}
+
{{PacketList|0x7A|Clientbound Report Details (play)|rel=added}}
−
  {{PacketList|0x48|Collect Item}}
+
{{PacketList|0x7B|Clientbound Server Links (play)|rel=added}}
 
  |-
 
  |-
 
|}
 
|}
  
−
== New/modified data types ==
+
== Handshake ==
 +
 
 +
No changes so far.
  
−
None so far.
+
== Status ==
  
−
== Handshaking ==
+
No changes so far.
  
−
=== Clientbound ===
+
== Login ==
  
 
No changes so far.
 
No changes so far.
  
−
=== Serverbound ===
+
== Configuration ==
 +
 
 +
=== Clientbound ===
  
−
==== Handshake ====
+
==== Clientbound Report Details (configuration) ====
  
−
This causes the server to switch into the target state.
+
Contains a list of key-value text entries that are included in any crash or disconnection report generated during connection to the server.
  
−
{| class="wikitable"
+
{| class="wikitable" {{added}}
 
  ! Packet ID
 
  ! Packet ID
 
  ! State
 
  ! State
 
  ! Bound To
 
  ! Bound To
−
  ! Field Name
+
  ! colspan="2"| Field Name
−
  ! Field Type
+
  ! colspan="2"| Field Type
 
  ! Notes
 
  ! Notes
 
  |-
 
  |-
−
  |rowspan="4"| 0x00
+
  | rowspan="3"| 0x0F
−
  |rowspan="4"| Handshaking
+
  | rowspan="3"| Configuration
−
  |rowspan="4"| Server
+
  | rowspan="3"| Client
−
  | Protocol Version
+
  | colspan="2"| Details Count
−
  | VarInt
+
  | colspan="2"| {{Type|VarInt}} (32)
−
| See [[protocol version numbers]] (currently {{change|210|301}})
+
| The number of details in the following array.
 
  |-
 
  |-
−
  | Server Address
+
  | rowspan="2"| Details
−
  | String
+
  | Title
−
  | Hostname or IP, e.g. localhost or 127.0.0.1, that was used to connect.  The Notchian server does not use this information.
+
  | rowspan="2"| {{Type|Array}}
−
|-
+
  | {{Type|String}} (128)
−
  | Server Port
+
  |
−
| Unsigned Short
 
−
  | Default is 25565.  The Notchian server does not use this information.
 
 
  |-
 
  |-
−
  | Next State
+
  | Description
−
  | VarInt Enum
+
  | {{Type|String}} (4096)
−
  | 1 for [[#Status|status]], 2 for [[#Login|login]]
+
  |
−
|}
+
|}
−
 
 
−
== Play ==
 
−
 
 
−
=== Clientbound ===
 
  
−
==== Spawn Mob ====
+
==== Clientbound Server Links (configuration) ====
  
−
Sent by the server when a mob entity is spawned.
+
This packet contains a list of links that the Notchian client will display in the menu available from the pause menu. Link labels can be built-in or custom (i.e., any text).
  
−
{| class="wikitable"
+
{| class="wikitable" {{added}}
 
  ! Packet ID
 
  ! Packet ID
 
  ! State
 
  ! State
 
  ! Bound To
 
  ! Bound To
−
  ! Field Name
+
  ! colspan="2"| Field Name
−
  ! Field Type
+
  ! colspan="2"| Field Type
 
  ! Notes
 
  ! Notes
 
  |-
 
  |-
−
  |rowspan="13"| 0x03
+
  | rowspan="4"| 0x10
−
  |rowspan="13"| Play
+
  | rowspan="4"| Configuration
−
  |rowspan="13"| Client
+
  | rowspan="4"| Client
−
  | Entity ID
+
  | colspan="2"| Links Count
−
  | VarInt
+
  | colspan="2"| {{Type|VarInt}}
−
  |  
+
| The number of links in the following array.
 +
|-
 +
| rowspan="3"| Links
 +
| Is built-in
 +
| rowspan="3"| {{Type|Array}}
 +
| {{Type|Boolean}}
 +
| Determines if the following label is built-in (from enum) or custom (text component).
 +
|-
 +
| Label
 +
| {{Type|VarInt}} {{Type|Enum}} / {{Type|Text Component}}
 +
  | See below.
 
  |-
 
  |-
−
  | Entity UUID
+
  | URL
−
  | UUID
+
  | {{Type|String}}
−
  |  
+
  | Valid URL.
 +
|}
 +
 
 +
 
 +
{| class="wikitable" {{added}}
 +
! ID
 +
! Name
 +
! Notes
 
  |-
 
  |-
−
  | Type
+
  | 0
−
  | {{change|Unsigned Byte|VarInt}}
+
  | Bug Report
−
  | The type of mob. See [[Entities#Mobs]]
+
  | Displayed on connection error screen; included as a comment in the disconnection report.
 
  |-
 
  |-
−
  | X
+
  | 1
−
  | Double
+
  | Community Guidelines
 
  |  
 
  |  
 
  |-
 
  |-
−
  | Y
+
  | 2
−
  | Double
+
  | Support
 
  |  
 
  |  
 
  |-
 
  |-
−
  | Z
+
  | 3
−
  | Double
+
  | Status
 
  |  
 
  |  
 
  |-
 
  |-
−
  | Yaw
+
  | 4
−
  | Angle
+
  | Feedback
 
  |  
 
  |  
 
  |-
 
  |-
−
  | Pitch
+
  | 5
−
  | Angle
+
  | Community
 
  |  
 
  |  
 
  |-
 
  |-
−
  | Head Pitch
+
  | 6
−
  | Angle
+
  | Website
 
  |  
 
  |  
 
  |-
 
  |-
−
  | Velocity X
+
  | 7
−
  | Short
+
  | Forums
−
  | Same units as [[#Entity Velocity|Entity Velocity]]
+
  |  
 
  |-
 
  |-
−
  | Velocity Y
+
  | 8
−
  | Short
+
  | News
−
  | Same units as [[#Entity Velocity|Entity Velocity]]
+
  |  
 
  |-
 
  |-
−
  | Velocity Z
+
  | 9
−
  | Short
+
  | Announcements
−
  | Same units as [[#Entity Velocity|Entity Velocity]]
+
  |  
 
  |-
 
  |-
−
| Metadata
 
−
| [[Entities#Entity Metadata Format|Entity Metadata]]
 
−
|
 
 
  |}
 
  |}
  
−
==== Collect Item ====
+
=== Serverbound ===
 +
 
 +
No changes so far.
 +
 
 +
== Play ==
 +
 
 +
=== Clientbound ===
 +
 
 +
==== Clientbound Report Details (play) ====
  
−
Sent by the server when someone picks up an item lying on the ground — its sole purpose appears to be the animation of the item flying towards you. It doesn't destroy the entity in the client memory, and it doesn't add it to your inventory. The server only checks for items to be picked up after each [[#Player Position|Player Position]] (and [[#Player Position And Look|Player Position And Look]]) packet sent by the client.
+
Contains a list of key-value text entries that are included in any crash or disconnection report generated during connection to the server.
  
−
{| class="wikitable"
+
{| class="wikitable" {{added}}
 
  ! Packet ID
 
  ! Packet ID
 
  ! State
 
  ! State
 
  ! Bound To
 
  ! Bound To
−
  ! Field Name
+
  ! colspan="2"| Field Name
−
  ! Field Type
+
  ! colspan="2"| Field Type
 
  ! Notes
 
  ! Notes
 
  |-
 
  |-
−
  |rowspan="3"| 0x48
+
  | rowspan="3"| 0x7A
−
  |rowspan="3"| Play
+
  | rowspan="3"| Configuration
−
  |rowspan="3"| Client
+
  | rowspan="3"| Client
−
  | Collected Entity ID
+
  | colspan="2"| Details Count
−
  | VarInt
+
  | colspan="2"| {{Type|VarInt}} (32)
−
  |  
+
  | The number of details in the following array.
−
  |-  
+
  |-
−
  | Collector Entity ID
+
  | rowspan="2"| Details
−
  | VarInt
+
| Title
 +
| rowspan="2"| {{Type|Array}}
 +
  | {{Type|String}} (128)
 
  |
 
  |
−
  |-  
+
  |-
−
  |style="background-color: #d9ead3;"|Unknown
+
  | Description
−
  |style="background-color: #d9ead3;"|VarInt
+
  | {{Type|String}} (4096)
 
  |
 
  |
−
|}
+
|}
  
−
=== Serverbound ===
+
==== Clientbound Server Links (play) ====
  
−
No changes so far.
+
This packet contains a list of links that the Notchian client will display in the menu available from the pause menu. Link labels can be built-in or custom (i.e., any text).
  
−
== Status ==
+
{| class="wikitable" {{added}}
 +
! Packet ID
 +
! State
 +
! Bound To
 +
! colspan="2"| Field Name
 +
! colspan="2"| Field Type
 +
! Notes
 +
|-
 +
| rowspan="4"| 0x7B
 +
| rowspan="4"| Configuration
 +
| rowspan="4"| Client
 +
| colspan="2"| Links Count
 +
| colspan="2"| {{Type|VarInt}}
 +
| The number of links in the following array.
 +
|-
 +
| rowspan="3"| Links
 +
| Is built-in
 +
| rowspan="3"| {{Type|Array}}
 +
| {{Type|Boolean}}
 +
| Determines if the following label is built-in (from enum) or custom (text component).
 +
|-
 +
| Label
 +
| {{Type|VarInt}} {{Type|Enum}} / {{Type|Text Component}}
 +
| See below.
 +
|-
 +
| URL
 +
| {{Type|String}}
 +
| Valid URL.
 +
|}
  
−
=== Clientbound ===
+
{| class="wikitable" {{added}}
−
 
+
! ID
−
No changes so far.
+
! Name
 +
! Notes
 +
|-
 +
| 0
 +
| Bug Report
 +
| Displayed on connection error screen; included as a comment in the disconnection report.
 +
|-
 +
| 1
 +
| Community Guidelines
 +
|
 +
|-
 +
| 2
 +
| Support
 +
|
 +
|-
 +
| 3
 +
| Status
 +
|
 +
|-
 +
| 4
 +
| Feedback
 +
|
 +
|-
 +
| 5
 +
| Community
 +
|
 +
|-
 +
| 6
 +
| Website
 +
|
 +
|-
 +
| 7
 +
| Forums
 +
|
 +
|-
 +
| 8
 +
| News
 +
|
 +
|-
 +
| 9
 +
| Announcements
 +
|
 +
|-
 +
|}
  
 
=== Serverbound ===
 
=== Serverbound ===
Line 187: Line 279:
 
No changes so far.
 
No changes so far.
  
−
== Login ==
+
[[Category:Minecraft Modern]]
−
 
 
−
=== Clientbound ===
 
−
 
 
−
No changes so far.
 
−
 
 
−
=== Serverbound ===
 
−
 
 
−
No changes so far.
 

Latest revision as of 10:40, 8 June 2024

This page documents the changes from the last stable Minecraft release (currently 1.20.6, protocol 766) to the current pre-release (currently 1.21-pre2, protocol Snapshot 200). Note that this page contains bleeding-edge information that may not be completely or correctly documented.

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.

Contents

Data types

No changes documented so far.

Packets

ID Packet name Documentation
Configuration clientbound
0x0F Clientbound Report Details (configuration) Pre
0x10 Clientbound Server Links (configuration) Pre
Play clientbound
0x7A Clientbound Report Details (play) Pre
0x7B Clientbound Server Links (play) Pre

Handshake

No changes so far.

Status

No changes so far.

Login

No changes so far.

Configuration

Clientbound

Clientbound Report Details (configuration)

Contains a list of key-value text entries that are included in any crash or disconnection report generated during connection to the server.

Packet ID State Bound To Field Name Field Type Notes
0x0F Configuration Client Details Count VarInt (32) The number of details in the following array.
Details Title Array String (128)
Description String (4096)

Clientbound Server Links (configuration)

This packet contains a list of links that the Notchian client will display in the menu available from the pause menu. Link labels can be built-in or custom (i.e., any text).

Packet ID State Bound To Field Name Field Type Notes
0x10 Configuration Client Links Count VarInt The number of links in the following array.
Links Is built-in Array Boolean Determines if the following label is built-in (from enum) or custom (text component).
Label VarInt Enum / Text Component See below.
URL String Valid URL.


ID Name Notes
0 Bug Report Displayed on connection error screen; included as a comment in the disconnection report.
1 Community Guidelines
2 Support
3 Status
4 Feedback
5 Community
6 Website
7 Forums
8 News
9 Announcements

Serverbound

No changes so far.

Play

Clientbound

Clientbound Report Details (play)

Contains a list of key-value text entries that are included in any crash or disconnection report generated during connection to the server.

Packet ID State Bound To Field Name Field Type Notes
0x7A Configuration Client Details Count VarInt (32) The number of details in the following array.
Details Title Array String (128)
Description String (4096)

Clientbound Server Links (play)

This packet contains a list of links that the Notchian client will display in the menu available from the pause menu. Link labels can be built-in or custom (i.e., any text).

Packet ID State Bound To Field Name Field Type Notes
0x7B Configuration Client Links Count VarInt The number of links in the following array.
Links Is built-in Array Boolean Determines if the following label is built-in (from enum) or custom (text component).
Label VarInt Enum / Text Component See below.
URL String Valid URL.
ID Name Notes
0 Bug Report Displayed on connection error screen; included as a comment in the disconnection report.
1 Community Guidelines
2 Support
3 Status
4 Feedback
5 Community
6 Website
7 Forums
8 News
9 Announcements

Serverbound

No changes so far.

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