Difference between revisions of "Pre-release protocol"

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(13w36a update)
(Updated to 1.21-pre2)
 
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This page documents the changes from the [[Protocol|last stable Minecraft release]] (currently 1.6.2, protocol 74) to the current pre-release. 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.
He 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 occured to the respective packets there.
 
  
== Protocol History ==
+
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.
13w36a - Added sound category byte to 0x3E
 
  
== Protocol Version ==
+
== Contents ==
75
 
  
== New Packets ==
+
<div style="float:right;">__TOC__</div>
None
 
  
== Changed Packets ==
+
=== Data types ===
=== Named Sound Effect (0x3E) ===
 
''Server to client''
 
  
Used to play a sound effect on the client.
+
No changes documented so far.
  
All known sound effect names can be seen [https://github.com/SirCmpwn/Craft.Net/blob/master/source/Craft.Net.Common/SoundEffect.cs here].
+
=== Packets ===
  
 
{| class="wikitable"
 
{| class="wikitable"
|-
+
! ID
| Packet ID
+
! Packet name
| Field Name
+
!colspan="2"| Documentation
| Field Type
+
|-
| Example
+
!colspan="4"| Configuration clientbound
| Notes
+
{{PacketList|0x0F|Clientbound Report Details (configuration)|rel=added}}
|-
+
{{PacketList|0x10|Clientbound Server Links (configuration)|rel=added}}
| rowspan="7" | 0x3E
+
|-
| Sound name
+
!colspan="4"| Play clientbound
| string
+
{{PacketList|0x7A|Clientbound Report Details (play)|rel=added}}
| step.grass
+
{{PacketList|0x7B|Clientbound Server Links (play)|rel=added}}
| 250
+
|-
|-
+
|}
| Effect position X
+
 
| int
+
== Handshake ==
| 250
+
 
| effect X multiplied by 8
+
No changes so far.
|-
 
| Effect position Y
 
| int
 
| 250
 
| effect Y multiplied by 8
 
|-
 
| Effect position Z
 
| int
 
| 250
 
| effect Z multiplied by 8
 
|-
 
| Volume
 
| float
 
| 9
 
| 1 is 100%, can be more
 
|-
 
| Pitch
 
| byte
 
| 1
 
| 63 is 100%, can be more
 
|-
 
| Sound Category
 
| Unsigned byte
 
| 6
 
| Possible values:
 
MASTER: 0
 
  
MUSIC: 1
+
== Status ==
  
RECORDS: 2
+
No changes so far.
  
WEATHER: 3
+
== Login ==
  
BLOCKS: 4
+
No changes so far.
  
MOBS: 5
+
== Configuration ==
  
ANIMALS: 6
+
=== Clientbound ===
  
PLAYERS: 7
+
==== Clientbound Report Details (configuration) ====
|-
+
 
| Total Size:
+
Contains a list of key-value text entries that are included in any crash or disconnection report generated during connection to the server.
| colspan="4" | 21 bytes + length of string
+
 
 +
{| class="wikitable" {{added}}
 +
! Packet ID
 +
! State
 +
! Bound To
 +
! colspan="2"| Field Name
 +
! colspan="2"| Field Type
 +
! Notes
 +
|-
 +
| rowspan="3"| 0x0F
 +
| rowspan="3"| Configuration
 +
| rowspan="3"| Client
 +
| colspan="2"| Details Count
 +
| colspan="2"| {{Type|VarInt}} (32)
 +
| The number of details in the following array.
 +
|-
 +
| rowspan="2"| Details
 +
| Title
 +
| rowspan="2"| {{Type|Array}}
 +
| {{Type|String}} (128)
 +
|
 +
|-
 +
| Description
 +
| {{Type|String}} (4096)
 +
|
 
|}
 
|}
  
== Removed Packets ==
+
==== Clientbound Server Links (configuration) ====
None
+
 
 +
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" {{added}}
 +
! Packet ID
 +
! State
 +
! Bound To
 +
! colspan="2"| Field Name
 +
! colspan="2"| Field Type
 +
! Notes
 +
|-
 +
| rowspan="4"| 0x10
 +
| 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.
 +
|}
 +
 
 +
 
 +
{| class="wikitable" {{added}}
 +
! 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.
 +
 
 +
{| class="wikitable" {{added}}
 +
! Packet ID
 +
! State
 +
! Bound To
 +
! colspan="2"| Field Name
 +
! colspan="2"| Field Type
 +
! Notes
 +
|-
 +
| rowspan="3"| 0x7A
 +
| rowspan="3"| Configuration
 +
| rowspan="3"| Client
 +
| colspan="2"| Details Count
 +
| colspan="2"| {{Type|VarInt}} (32)
 +
| The number of details in the following array.
 +
|-
 +
| rowspan="2"| Details
 +
| Title
 +
| rowspan="2"| {{Type|Array}}
 +
| {{Type|String}} (128)
 +
|
 +
|-
 +
| Description
 +
| {{Type|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).
 +
 
 +
{| 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.
 +
|}
 +
 
 +
{| class="wikitable" {{added}}
 +
! 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.
  
== Changed Data Types ==
+
[[Category:Minecraft Modern]]
None
 

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.