Difference between revisions of "Pre-release protocol"

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(23w42a)
(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|1.20.2, protocol 764]]) to the current pre-release (currently [[Protocol version numbers|23w42a, protocol {{Snapshot PVN|1073741981}}]]). 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 ===
  
−
==== NBT ====
+
No changes documented so far.
−
 
 
−
The NBT specification was changed so that the root tag is no longer required to be a [[NBT#Specification:compound_tag|Compound Tag]] when sent over the network.
 
−
 
 
−
Presently in the pre-release, only [[NBT#Specification:compound_tag|Compound Tag]] and [[NBT#Specification:string_tag|String Tag]] types are used as root, but the Notchian server/client implementation is able to handle [[NBT#Specification|NBT Tags]] of any type.
 
−
 
 
−
==== Chat ====
 
−
 
 
−
The [[Chat]] type is now serialized as a [[NBT#Specification|NBT Tag]] instead of a JSON String, unless explicitly stated otherwise.
 
−
 
 
−
{| class="wikitable"
 
−
|-
 
−
! Name
 
−
! Size (bytes)
 
−
! Encodes
 
−
! Notes
 
−
|- {{removed}}
 
−
! id=Definitions:chat | [[#Definitions:chat|Chat]]
 
−
| ≥ 1 <br />≤ (262144&times;4) + 3
 
−
| See [[Chat]]
 
−
| Encoded as a String with max length of 262144.
 
−
|- {{added}}
 
−
! id=Definitions:chat | [[#Definitions:chat|Chat]]
 
−
| Varies
 
−
| See [[Chat]]
 
−
| Encoded as a [[NBT|NBT Tag]], with the type of tag used depending on the case:
 
−
* As a [[NBT#Specification:string_tag|String Tag]]: For components only containing text (no styling, no events etc.).
 
−
* As a [[NBT#Specification:compound_tag|Compound Tag]]: Every other case.
 
−
|}
 
−
 
 
−
This affects the following packets and data types containing Chat fields:
 
−
* [[Protocol#Disconnect (configuration)|Disconnect (configuration)]]
 
−
* [[Protocol#Resource Pack (configuration)|Resource Pack (configuration)]]
 
−
* [[Protocol#Boss Bar|Boss Bar]]
 
−
* [[Protocol#Command Suggestions Response|Command Suggestions Response]]
 
−
* [[Protocol#Disconnect (play)|Disconnect (play)]]
 
−
* [[Protocol#Disguised Chat Message|Disguised Chat Message]]
 
−
* [[Protocol#Map Data|Map Data]]
 
−
* [[Protocol#Open Screen|Open Screen]]
 
−
* [[Protocol#Player Chat Message|Player Chat Message]]
 
−
* [[Protocol#Combat Death|Combat Death]]
 
−
* [[Protocol#Player Info Update|Player Info Update]]
 
−
* [[Protocol#Resource Pack (play)|Resource Pack (play)]]
 
−
* [[Protocol#Server Data|Server Data]]
 
−
* [[Protocol#Set Action Bar Text|Set Action Bar Text]]
 
−
* [[Protocol#Update Objectives|Update Objectives]]
 
−
* [[Protocol#Update Teams|Update Teams]]
 
−
* [[Protocol#Set Subtitle Text|Set Subtitle Text]]
 
−
* [[Protocol#Set Title Text|Set Title Text]]
 
−
* [[Protocol#System Chat Message|System Chat Message]]
 
−
* [[Protocol#Set Tab List Header And Footer|Set Tab List Header And Footer]]
 
−
* [[Protocol#Update Advancements|Update Advancements]]
 
−
<br>
 
−
* [[Slot|Slot data type (values in the item NBT field)]]
 
−
* [[Entity_metadata#Entity_Metadata_Format|Chat entity metadata type]]
 
−
* [[Entity_metadata#Entity_Metadata_Format|OptChat entity metadata type]]
 
−
<br>
 
−
This '''does not''' affect the following packets and data types containing Chat fields:
 
−
* [[Protocol#Disconnect (login)|Disconnect (login)]]
 
  
 
=== Packets ===
 
=== Packets ===
Line 77: Line 19:
 
  |-
 
  |-
 
  !colspan="4"| Configuration clientbound
 
  !colspan="4"| Configuration clientbound
−
  {{PacketList|0x07|Feature Flags}}
+
  {{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|0x20|Game Event}}
+
  {{PacketList|0x7A|Clientbound Report Details (play)|rel=added}}
 +
{{PacketList|0x7B|Clientbound Server Links (play)|rel=added}}
 
  |-
 
  |-
−
!colspan="4"| Play serverbound
+
|}
−
{{PacketList|0x0F|Change Container Slot State|rel=added}}
 
−
{{PacketList|{{change|0x0F|0x10}}|Serverbound Plugin Message (play)|pre=unchanged}}
 
−
{{PacketList|{{change|0x10|0x11}}|Edit Book|pre=unchanged}}
 
−
{{PacketList|{{change|0x11|0x12}}|Query Entity Tag|pre=unchanged}}
 
−
{{PacketList|{{change|0x12|0x13}}|Interact|pre=unchanged}}
 
−
{{PacketList|{{change|0x13|0x14}}|Jigsaw Generate|pre=unchanged}}
 
−
{{PacketList|{{change|0x14|0x15}}|Serverbound Keep Alive (play)|pre=unchanged}}
 
−
{{PacketList|{{change|0x15|0x16}}|Lock Difficulty|pre=unchanged}}
 
−
{{PacketList|{{change|0x16|0x17}}|Set Player Position|pre=unchanged}}
 
−
{{PacketList|{{change|0x17|0x18}}|Set Player Position and Rotation|pre=unchanged}}
 
−
{{PacketList|{{change|0x18|0x19}}|Set Player Rotation|pre=unchanged}}
 
−
{{PacketList|{{change|0x19|0x1A}}|Set Player On Ground|pre=unchanged}}
 
−
{{PacketList|{{change|0x1A|0x1B}}|Move Vehicle|pre=unchanged}}
 
−
{{PacketList|{{change|0x1B|0x1C}}|Paddle Boat|pre=unchanged}}
 
−
{{PacketList|{{change|0x1C|0x1D}}|Pick Item|pre=unchanged}}
 
−
{{PacketList|{{change|0x1D|0x1E}}|Ping Request (play)|pre=unchanged}}
 
−
{{PacketList|{{change|0x1E|0x1F}}|Place Recipe|pre=unchanged}}
 
−
{{PacketList|{{change|0x1F|0x20}}|Player Abilities|pre=unchanged}}
 
−
{{PacketList|{{change|0x20|0x21}}|Player Action|pre=unchanged}}
 
−
{{PacketList|{{change|0x21|0x22}}|Player Command|pre=unchanged}}
 
−
{{PacketList|{{change|0x22|0x23}}|Player Input|pre=unchanged}}
 
−
{{PacketList|{{change|0x23|0x24}}|Pong (play)|pre=unchanged}}
 
−
{{PacketList|{{change|0x24|0x25}}|Change Recipe Book Settings|pre=unchanged}}
 
−
{{PacketList|{{change|0x25|0x26}}|Set Seen Recipe|pre=unchanged}}
 
−
{{PacketList|{{change|0x26|0x27}}|Rename Item|pre=unchanged}}
 
−
{{PacketList|{{change|0x27|0x28}}|Resource Pack Response (play)|pre=unchanged}}
 
−
{{PacketList|{{change|0x28|0x29}}|Seen Advancements|pre=unchanged}}
 
−
{{PacketList|{{change|0x29|0x2A}}|Select Trade|pre=unchanged}}
 
−
{{PacketList|{{change|0x2A|0x2B}}|Set Beacon Effect|pre=unchanged}}
 
−
{{PacketList|{{change|0x2B|0x2C}}|Set Held Item|pre=unchanged}}
 
−
{{PacketList|{{change|0x2C|0x2D}}|Program Command Block|pre=unchanged}}
 
−
{{PacketList|{{change|0x2D|0x2E}}|Program Command Block Minecart|pre=unchanged}}
 
−
{{PacketList|{{change|0x2E|0x2F}}|Set Creative Mode Slot|pre=unchanged}}
 
−
{{PacketList|{{change|0x2F|0x30}}|Program Jigsaw Block|pre=unchanged}}
 
−
{{PacketList|{{change|0x30|0x31}}|Program Structure Block|pre=unchanged}}
 
−
{{PacketList|{{change|0x31|0x32}}|Update Sign|pre=unchanged}}
 
−
{{PacketList|{{change|0x32|0x33}}|Swing Arm|pre=unchanged}}
 
−
{{PacketList|{{change|0x33|0x34}}|Teleport To Entity|pre=unchanged}}
 
−
{{PacketList|{{change|0x34|0x35}}|Use Item On|pre=unchanged}}
 
−
{{PacketList|{{change|0x35|0x36}}|Use Item|pre=unchanged}}
 
−
|}
 
  
−
== New/modified data types ==
+
== Handshake ==
  
 
No changes so far.
 
No changes so far.
  
−
== Entity Metadata ==
+
== Status ==
  
−
=== Abstract Vehicle ===
+
No changes so far.
  
−
{{Metadata inherit|Abstract Vehicle|inherits=Entity|start_at=8}}
+
== Login ==
  
−
{| class="wikitable"
+
No changes so far.
−
  ! Index
+
 
−
  ! Type
+
== Configuration ==
−
  !style="width: 250px;" colspan="2"| Meaning
+
 
−
  ! Default
+
=== Clientbound ===
−
  |- {{added}}
+
 
−
  | {{Metadata id|}}
+
==== Clientbound Report Details (configuration) ====
−
  | VarInt
+
 
−
  |colspan="2"| Shaking power
+
Contains a list of key-value text entries that are included in any crash or disconnection report generated during connection to the server.
−
  | 0
+
 
−
|- {{added}}
+
{| class="wikitable" {{added}}
−
  | {{Metadata id|}}
+
  ! Packet ID
−
  | VarInt
+
  ! State
−
  |colspan="2"| Shaking direction
+
! Bound To
−
  | 1
+
  ! colspan="2"| Field Name
−
  |- {{added}}
+
! colspan="2"| Field Type
−
  | {{Metadata id|}}
+
  ! Notes
−
  | Float
+
  |-
−
|colspan="2"| Shaking multiplier
+
  | rowspan="3"| 0x0F
−
| 0.0
+
| 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)
 +
|
 +
|}
  
−
=== Abstract Minecart===
+
==== Clientbound Server Links (configuration) ====
  
−
{{Metadata inherit|Abstract Minecart|inherits=Abstract Vehicle}}
+
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}}
−
  ! Index
+
  ! Packet ID
−
  ! Type
+
  ! State
−
  !style="width: 250px;" colspan="2"| Meaning
+
! Bound To
−
  ! Default
+
  ! colspan="2"| Field Name
−
  |- {{removed}}
+
! colspan="2"| Field Type
−
  | 8
+
  ! Notes
−
| VarInt
+
  |-
−
  |colspan="2"| Shaking power
+
  | rowspan="4"| 0x10
−
  | 0
+
  | rowspan="4"| Configuration
−
|- {{removed}}
+
  | rowspan="4"| Client
−
| 9
+
  | colspan="2"| Links Count
−
| VarInt
+
  | colspan="2"| {{Type|VarInt}}
−
  |colspan="2"| Shaking direction
+
  | The number of links in the following array.
−
| 1
 
−
|- {{removed}}
 
−
| 10
 
−
| Float
 
−
  |colspan="2"| Shaking multiplier
 
−
  | 0.0
 
 
  |-
 
  |-
−
  | 11
+
  | rowspan="3"| Links
−
  | VarInt
+
  | Is built-in
−
  |colspan="2"| Custom block ID and damage
+
  | rowspan="3"| {{Type|Array}}
−
  | 0
+
| {{Type|Boolean}}
 +
  | Determines if the following label is built-in (from enum) or custom (text component).
 
  |-
 
  |-
−
  | 12
+
  | Label
−
  | VarInt
+
  | {{Type|VarInt}} {{Type|Enum}} / {{Type|Text Component}}
−
|colspan="2"| Custom block Y position (in 16ths of a block)
+
  | See below.
−
  | 6
 
 
  |-
 
  |-
−
  | 13
+
  | URL
−
  | Boolean
+
  | {{Type|String}}
−
|colspan="2"| Show custom block
+
  | Valid URL.
−
  | false
+
|}
−
|}
 
  
−
=== Boat ===
 
  
−
{{Metadata inherit|Boat|inherits=Abstract Vehicle}}
+
{| class="wikitable" {{added}}
−
 
+
  ! ID
−
{| class="wikitable"
+
  ! Name
−
  ! Index
+
  ! Notes
−
! Type
+
  |-
−
  !style="width: 250px;" colspan="2"| Meaning
 
−
  ! Default
 
−
  |- {{removed}}
 
−
| 8
 
−
| VarInt
 
−
|colspan="2"| Time since last hit
 
 
  | 0
 
  | 0
−
  |- {{removed}}
+
  | Bug Report
−
  | 9
+
  | Displayed on connection error screen; included as a comment in the disconnection report.
−
  | VarInt
+
  |-
−
|colspan="2"| Forward direction
 
 
  | 1
 
  | 1
−
  |- {{removed}}
+
| Community Guidelines
−
  | 10
+
|
−
  | Float
+
  |-
−
  |colspan="2"| Damage taken
+
  | 2
−
  | 0.0
+
  | Support
 +
  |  
 +
|-
 +
| 3
 +
| Status
 +
  |  
 
  |-
 
  |-
−
  | 11
+
  | 4
−
  | VarInt
+
  | Feedback
−
  |colspan="2"| Type (0=oak, 1=spruce, 2=birch, 3=jungle, 4=acacia, 5=dark oak)
+
  |  
−
  | 0
+
|-
 +
| 5
 +
  | Community
 +
|
 +
|-
 +
| 6
 +
| Website
 +
|
 +
|-
 +
| 7
 +
| Forums
 +
|
 
  |-
 
  |-
−
  | 12
+
  | 8
−
  | Boolean
+
  | News
−
  |colspan="2"| Is left paddle turning
+
  |  
−
| false
 
 
  |-
 
  |-
−
  | 13
+
  | 9
−
  | Boolean
+
  | Announcements
−
  |colspan="2"| Is right paddle turning
+
  |  
−
| false
 
 
  |-
 
  |-
−
| 14
 
−
| VarInt
 
−
|colspan="2"| Splash timer
 
−
| 0
 
 
  |}
 
  |}
−
 
−
== Block Actions ==
 
−
 
−
No changes so far.
 
−
 
−
== Inventories ==
 
−
 
−
No changes so far.
 
−
 
−
== Plugin Channels ==
 
−
 
−
No changes so far.
 
−
 
−
== Status ==
 
−
 
−
=== Clientbound ===
 
−
 
−
No changes so far.
 
  
 
=== Serverbound ===
 
=== Serverbound ===
Line 267: Line 160:
 
No changes so far.
 
No changes so far.
  
−
== Login ==
+
== Play ==
  
 
=== Clientbound ===
 
=== Clientbound ===
  
−
No changes so far.
+
==== Clientbound Report Details (play) ====
  
−
=== Serverbound ===
+
Contains a list of key-value text entries that are included in any crash or disconnection report generated during connection to the server.
  
−
No changes so far.
+
{| class="wikitable" {{added}}
−
 
 
−
== Configuration ==
 
−
 
 
−
=== Clientbound ===
 
−
 
 
−
==== Feature Flags ====
 
−
 
 
−
Used to enable and disable features, generally experimental ones, on the client.
 
−
 
 
−
{| class="wikitable"
 
 
  ! 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="2"| 0x07
+
  | rowspan="3"| 0x7A
−
  | rowspan="2"| Configuration
+
  | rowspan="3"| Configuration
−
  | rowspan="2"| Client
+
  | rowspan="3"| Client
−
  | Total Features
+
  | colspan="2"| Details Count
−
  | VarInt
+
  | colspan="2"| {{Type|VarInt}} (32)
−
  | Number of features that appear in the array below.
+
  | The number of details in the following array.
 
  |-
 
  |-
−
  | Feature Flags
+
  | rowspan="2"| Details
−
  | Identifier Array
+
  | Title
 +
| rowspan="2"| {{Type|Array}}
 +
| {{Type|String}} (128)
 
  |
 
  |
−
  |}
+
  |-
 +
| Description
 +
| {{Type|String}} (4096)
 +
|
 +
|}
  
−
As of {{change|1.20.2|1.20.3}}, the following feature flags are available:
+
==== Clientbound Server Links (play) ====
  
−
* minecraft:vanilla - enables vanilla features</li>
+
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).
−
* minecraft:bundle - enables support for the bundle</li>
 
−
* minecraft:trade_rebalance - enables support for the rebalanced villager trades</li>
 
−
* {{change||minecraft:update_1_21 - enables support for 1.21 features}}</li>
 
  
−
=== Serverbound ===
+
{| class="wikitable" {{added}}
−
 
 
−
No changes so far.
 
−
 
 
−
== Play ==
 
−
 
 
−
=== Clientbound ===
 
−
 
 
−
==== Game Event ====
 
−
 
 
−
Used for a wide variety of game events, from weather to bed use to game mode to demo messages.
 
−
 
 
−
{| class="wikitable"
 
 
  ! 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="2"| 0x20
+
  | rowspan="4"| 0x7B
−
  | rowspan="2"| Play
+
| rowspan="4"| Configuration
−
  | rowspan="2"| Client
+
| rowspan="4"| Client
−
  | Event
+
| colspan="2"| Links Count
−
  | Unsigned Byte
+
| 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.
 
  | See below.
 
  |-
 
  |-
−
  | Value
+
  | URL
−
  | Float
+
  | {{Type|String}}
−
  | Depends on Event.
+
  | Valid URL.
−
|}
+
|}
  
−
''Events'':
+
{| class="wikitable" {{added}}
−
 
+
  ! ID
−
{| class="wikitable"
+
  ! Name
−
  ! Event
+
  ! Notes
−
  ! Effect
 
−
  ! Value
 
 
  |-
 
  |-
 
  | 0
 
  | 0
−
  | No respawn block available
+
  | Bug Report
−
  | Note: Displays message 'block.minecraft.spawn.not_valid' (You have no home bed or charged respawn anchor, or it was obstructed) to the player.
+
  | Displayed on connection error screen; included as a comment in the disconnection report.
 
  |-
 
  |-
 
  | 1
 
  | 1
−
  | Begin raining
+
  | Community Guidelines
−
  |
+
  |  
 
  |-
 
  |-
 
  | 2
 
  | 2
−
  | End raining
+
  | Support
−
  |
+
  |  
 
  |-
 
  |-
 
  | 3
 
  | 3
−
  | Change game mode
+
  | Status
−
  | 0: Survival, 1: Creative, 2: Adventure, 3: Spectator.
+
  |  
 
  |-
 
  |-
 
  | 4
 
  | 4
−
  | Win game
+
  | Feedback
−
  | 0: Just respawn player.<br>1: Roll the credits and respawn player.<br>Note that 1 is only sent by notchian server when player has not yet achieved advancement "The end?", else 0 is sent.
+
  |  
 
  |-
 
  |-
 
  | 5
 
  | 5
−
  | Demo event
+
  | Community
−
  | 0: Show welcome to demo screen.<br>101: Tell movement controls.<br>102: Tell jump control.<br>103: Tell inventory control.<br>104: Tell that the demo is over and print a message about how to take a screenshot.
+
  |  
 
  |-
 
  |-
 
  | 6
 
  | 6
−
  | Arrow hit player
+
  | Website
−
  | Note: Sent when any player is struck by an arrow.
+
  |  
 
  |-
 
  |-
 
  | 7
 
  | 7
−
  | Rain level change
+
  | Forums
−
  | Note: Seems to change both sky color and lighting.<br>Rain level ranging from 0 to 1.
+
  |  
 
  |-
 
  |-
 
  | 8
 
  | 8
−
  | Thunder level change
+
  | News
−
  | Note: Seems to change both sky color and lighting (same as Rain level change, but doesn't start rain). It also requires rain to render by notchian client.<br>Thunder level ranging from 0 to 1.
+
  |  
 
  |-
 
  |-
 
  | 9
 
  | 9
−
  | Play pufferfish sting sound
+
  | Announcements
 +
|
 
  |-
 
  |-
−
| 10
 
−
| Play elder guardian mob appearance (effect and sound)
 
−
|
 
−
|-
 
−
| 11
 
−
| Enable respawn screen
 
−
|  0: Enable respawn screen.<br>1: Immediately respawn (sent when the <code>doImmediateRespawn</code> gamerule changes).
 
−
|-
 
−
| 12
 
−
| Limited crafting
 
−
| 0: Disable limited crafting.<br>1: Enable limited crafting (sent when the <code>doLimitedCrafting</code> gamerule changes).
 
−
|- {{added}}
 
−
| 13
 
−
| Start waiting for level chunks
 
−
| Instructs the client to begin the waiting process for the level chunks.<br>Sent by the server after the level is cleared on the client and is being re-sent (either during the first, or subsequent reconfigurations).
 
 
  |}
 
  |}
  
 
=== Serverbound ===
 
=== Serverbound ===
  
−
==== Change Container Slot State ====
+
No changes so far.
−
 
 
−
This packet is sent by the client when toggling the state of a Crafter.
 
−
 
 
−
{| class="wikitable" {{added}}
 
−
! Packet ID
 
−
! State
 
−
! Bound To
 
−
! Field Name
 
−
! Field Type
 
−
! Notes
 
−
|-
 
−
| rowspan="3"| 0x0F
 
−
| rowspan="3"| Play
 
−
| rowspan="3"| Server
 
−
| Slot ID
 
−
| VarInt
 
−
| This is the ID of the slot that was changed.
 
−
|-
 
−
| Window ID
 
−
| VarInt
 
−
| This is the ID of the window that was changed.
 
−
|-
 
−
| State
 
−
| Boolean
 
−
| The new state of the slot. True for enabled, false for disabled.
 
−
|}
 
  
 
[[Category:Minecraft Modern]]
 
[[Category:Minecraft Modern]]

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.

Retrieved from "https://wiki.vg/index.php?title=Pre-release_protocol&oldid=19307"