Difference between revisions of "Pre-release protocol"

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(... and the beehive was added. Also fix messed up packet IDs due to how I automated things)
(Updated to 1.21-pre2)
 
(341 intermediate revisions by 35 users not shown)
Line 1: Line 1:
−
This page documents the changes from the [[Protocol|last stable Minecraft release]] (currently [[Protocol version numbers|1.14.4, protocol 498]]) to the current pre-release (currently [[Protocol version numbers|19w34a, protocol 550]]). 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 ===
Line 18: 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|0x05|Spawn Player}}
+
{{PacketList|0x7B|Clientbound Server Links (play)|rel=added}}
−
{{PacketList|{{change|0x5C|0x08}}|Player Digging|pre=unchanged}}
+
|-
−
{{PacketList|{{change|0x08|0x09}}|Block Break Animation|pre=unchanged}}
+
|}
−
{{PacketList|{{change|0x09|0x0A}}|Update Block Entity|pre=unchanged}}
 
−
{{PacketList|{{change|0x0A|0x0B}}|Block Action|pre=unchanged}}
 
−
{{PacketList|{{change|0x0B|0x0C}}|Block Change|pre=unchanged}}
 
−
{{PacketList|{{change|0x0C|0x0D}}|Boss Bar|pre=unchanged}}
 
−
{{PacketList|{{change|0x0D|0x0E}}|Server Difficulty|pre=unchanged}}
 
−
{{PacketList|{{change|0x0E|0x0F}}|Chat Message (clientbound)|pre=unchanged}}
 
−
{{PacketList|{{change|0x0F|0x10}}|Multi Block Change|pre=unchanged}}
 
−
{{PacketList|{{change|0x10|0x11}}|Tab-Complete (clientbound)|pre=unchanged}}
 
−
{{PacketList|{{change|0x11|0x12}}|Declare Commands|pre=unchanged}}
 
−
{{PacketList|{{change|0x12|0x13}}|Confirm Transaction (clientbound)|pre=unchanged}}
 
−
{{PacketList|{{change|0x13|0x14}}|Close Window (clientbound)|pre=unchanged}}
 
−
{{PacketList|{{change|0x14|0x15}}|Window Items|pre=unchanged}}
 
−
{{PacketList|{{change|0x15|0x16}}|Window Property|pre=unchanged}}
 
−
{{PacketList|{{change|0x16|0x17}}|Set Slot|pre=unchanged}}
 
−
{{PacketList|{{change|0x17|0x18}}|Set Cooldown|pre=unchanged}}
 
−
{{PacketList|{{change|0x18|0x19}}|Plugin Message (clientbound)|pre=unchanged}}
 
−
{{PacketList|{{change|0x19|0x1A}}|Named Sound Effect|pre=unchanged}}
 
−
{{PacketList|{{change|0x1A|0x1B}}|Disconnect (play)|pre=unchanged}}
 
−
{{PacketList|{{change|0x1B|0x1C}}|Entity Status|pre=unchanged}}
 
−
{{PacketList|{{change|0x1C|0x1D}}|Explosion|pre=unchanged}}
 
−
{{PacketList|{{change|0x1D|0x1E}}|Unload Chunk|pre=unchanged}}
 
−
{{PacketList|{{change|0x1E|0x1F}}|Change Game State|pre=unchanged}}
 
−
{{PacketList|{{change|0x1F|0x20}}|Open Horse Window|pre=unchanged}}
 
−
{{PacketList|{{change|0x20|0x21}}|Keep Alive (clientbound)|pre=unchanged}}
 
−
{{PacketList|{{change|0x21|0x22}}|Chunk Data|pre=unchanged}}
 
−
{{PacketList|{{change|0x22|0x23}}|Effect|pre=unchanged}}
 
−
{{PacketList|{{change|0x23|0x24}}|Particle|pre=unchanged}}
 
−
{{PacketList|{{change|0x24|0x25}}|Update Light|pre=unchanged}}
 
−
{{PacketList|{{change|0x25|0x26}}|Join Game|pre=unchanged}}
 
−
{{PacketList|{{change|0x26|0x27}}|Map Data|pre=unchanged}}
 
−
{{PacketList|{{change|0x27|0x28}}|Trade List|pre=unchanged}}
 
−
{{PacketList|{{change|0x28|0x29}}|Entity Relative Move|pre=unchanged}}
 
−
{{PacketList|{{change|0x29|0x2A}}|Entity Look And Relative Move|pre=unchanged}}
 
−
{{PacketList|{{change|0x2A|0x2B}}|Entity Look|pre=unchanged}}
 
−
{{PacketList|{{change|0x2B|0x2C}}|Entity|pre=unchanged}}
 
−
{{PacketList|{{change|0x2C|0x2D}}|Vehicle Move (clientbound)|pre=unchanged}}
 
−
{{PacketList|{{change|0x2D|0x2E}}|Open Book|pre=unchanged}}
 
−
{{PacketList|{{change|0x2E|0x2F}}|Open Window|pre=unchanged}}
 
−
{{PacketList|{{change|0x2F|0x30}}|Open Sign Editor|pre=unchanged}}
 
−
{{PacketList|{{change|0x30|0x31}}|Craft Recipe Response|pre=unchanged}}
 
−
{{PacketList|{{change|0x31|0x32}}|Player Abilities (clientbound)|pre=unchanged}}
 
−
{{PacketList|{{change|0x32|0x33}}|Combat Event|pre=unchanged}}
 
−
{{PacketList|{{change|0x33|0x34}}|Player Info|pre=unchanged}}
 
−
{{PacketList|{{change|0x34|0x35}}|Face Player|pre=unchanged}}
 
−
{{PacketList|{{change|0x35|0x36}}|Player Position And Look (clientbound)|pre=unchanged}}
 
−
{{PacketList|{{change|0x36|0x37}}|Unlock Recipes|pre=unchanged}}
 
−
{{PacketList|{{change|0x37|0x38}}|Destroy Entities|pre=unchanged}}
 
−
{{PacketList|{{change|0x38|0x39}}|Remove Entity Effect|pre=unchanged}}
 
−
{{PacketList|{{change|0x39|0x3A}}|Resource Pack Send|pre=unchanged}}
 
−
{{PacketList|{{change|0x3A|0x3B}}|Respawn|pre=unchanged}}
 
−
{{PacketList|{{change|0x3B|0x3C}}|Entity Head Look|pre=unchanged}}
 
−
{{PacketList|{{change|0x3C|0x3D}}|Select Advancement Tab|pre=unchanged}}
 
−
{{PacketList|{{change|0x3D|0x3E}}|World Border|pre=unchanged}}
 
−
{{PacketList|{{change|0x3E|0x3F}}|Camera|pre=unchanged}}
 
−
{{PacketList|{{change|0x3F|0x40}}|Held Item Change (clientbound)|pre=unchanged}}
 
−
{{PacketList|{{change|0x40|0x41}}|Update View Position|pre=unchanged}}
 
−
{{PacketList|{{change|0x41|0x42}}|Update View Distance|pre=unchanged}}
 
−
{{PacketList|{{change|0x42|0x43}}|Display Scoreboard|pre=unchanged}}
 
−
{{PacketList|{{change|0x43|0x44}}|Entity Metadata|pre=unchanged}}
 
−
{{PacketList|{{change|0x44|0x45}}|Attach Entity|pre=unchanged}}
 
−
{{PacketList|{{change|0x45|0x46}}|Entity Velocity|pre=unchanged}}
 
−
{{PacketList|{{change|0x46|0x47}}|Entity Equipment|pre=unchanged}}
 
−
{{PacketList|{{change|0x47|0x48}}|Set Experience|pre=unchanged}}
 
−
{{PacketList|{{change|0x48|0x49}}|Update Health|pre=unchanged}}
 
−
{{PacketList|{{change|0x49|0x4A}}|Scoreboard Objective|pre=unchanged}}
 
−
{{PacketList|{{change|0x4A|0x4B}}|Set Passengers|pre=unchanged}}
 
−
{{PacketList|{{change|0x4B|0x4C}}|Teams|pre=unchanged}}
 
−
{{PacketList|{{change|0x4C|0x4D}}|Update Score|pre=unchanged}}
 
−
{{PacketList|{{change|0x4D|0x4E}}|Spawn Position|pre=unchanged}}
 
−
{{PacketList|{{change|0x4E|0x4F}}|Time Update|pre=unchanged}}
 
−
{{PacketList|{{change|0x4F|0x50}}|Title|pre=unchanged}}
 
−
{{PacketList|{{change|0x50|0x51}}|Entity Sound Effect|pre=unchanged}}
 
−
{{PacketList|{{change|0x51|0x52}}|Sound Effect|pre=unchanged}}
 
−
{{PacketList|{{change|0x52|0x53}}|Stop Sound|pre=unchanged}}
 
−
{{PacketList|{{change|0x53|0x54}}|Player List Header And Footer|pre=unchanged}}
 
−
{{PacketList|{{change|0x54|0x55}}|NBT Query Response|pre=unchanged}}
 
−
{{PacketList|{{change|0x55|0x56}}|Collect Item|pre=unchanged}}
 
−
{{PacketList|{{change|0x56|0x57}}|Entity Teleport|pre=unchanged}}
 
−
{{PacketList|{{change|0x57|0x58}}|Advancements|pre=unchanged}}
 
−
{{PacketList|{{change|0x58|0x59}}|Entity Properties|pre=unchanged}}
 
−
{{PacketList|{{change|0x59|0x5A}}|Entity Effect|pre=unchanged}}
 
−
{{PacketList|{{change|0x5A|0x5B}}|Declare Recipes|pre=unchanged}}
 
−
{{PacketList|{{change|0x5B|0x5C}}|Tags|pre=unchanged}}
 
−
|}
 
  
−
== New/modified data types ==
+
== Handshake ==
  
 
No changes so far.
 
No changes so far.
  
−
== Entity Metadata ==
+
== Status ==
 +
 
 +
No changes so far.
  
−
{{warning2|Lots of shifts, of course}}
+
== Login ==
  
−
=== Living ===
+
No changes so far.
  
−
Extends [[#Entity|Entity]].
+
== Configuration ==
  
−
{| class="wikitable"
+
=== Clientbound ===
−
! Index
 
−
! Type
 
−
!style="width: 250px;" colspan="2"| Meaning
 
−
! Default
 
−
|-
 
−
|rowspan="5"| 7
 
−
|rowspan="5"| Byte
 
−
|colspan="2"| Hand states, used to trigger blocking/eating/drinking animation.
 
−
|rowspan="5"| 0
 
−
|-
 
−
! Bit mask
 
−
! Meaning
 
−
|-
 
−
| 0x01
 
−
| Is hand active
 
−
|-
 
−
| 0x02
 
−
| Active hand (0 = main hand, 1 = offhand)
 
−
|-
 
−
| 0x04
 
−
| In riptide spin attack
 
−
|-
 
−
| 8
 
−
| Float
 
−
|colspan="2"| Health
 
−
| 1.0
 
−
|-
 
−
| 9
 
−
| VarInt
 
−
|colspan="2"| Potion effect color (or 0 if there is no effect)
 
−
| 0
 
−
|-
 
−
| 10
 
−
| Boolean
 
−
|colspan="2"| Is potion effect ambient: reduces the number of particles generated by potions to 1/5 the normal amount
 
−
| false
 
−
|-
 
−
| 11
 
−
| VarInt
 
−
|colspan="2"| Number of arrows in entity
 
−
| 0
 
−
|- {{Added}}
 
−
| 12
 
−
| VarInt
 
−
|colspan="2"| Unknown
 
−
| 0
 
−
|-
 
−
| {{change|12|13}}
 
−
| OptBlockPos
 
−
|colspan="2"| Unknown (Bed location?)
 
−
| Absent
 
−
|}
 
  
−
=== Bee ===
+
==== Clientbound Report Details (configuration) ====
  
−
Extends [[#Insentient|Insentient]].
+
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}}
 
{| class="wikitable" {{added}}
−
  ! Index
+
  ! Packet ID
−
  ! Type
+
  ! State
−
  !style="width: 250px;" colspan="2"| Meaning
+
! Bound To
−
  ! Default
+
  ! colspan="2"| Field Name
 +
! colspan="2"| Field Type
 +
  ! Notes
 
  |-
 
  |-
−
  | 16
+
  | rowspan="3"| 0x0F
−
  | Byte
+
| rowspan="3"| Configuration
−
  |colspan="2"| Unknown
+
| rowspan="3"| Client
−
  | 0
+
  | 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)
 +
  |
 
  |-
 
  |-
−
  | 17
+
  | Description
−
  | VarInt
+
  | {{Type|String}} (4096)
−
|colspan="2"| Unknown
+
  |
−
  | 0
+
|}
−
|}
 
−
 
 
−
== Block Actions ==
 
  
−
No changes so far.
+
==== Clientbound Server Links (configuration) ====
  
−
== Inventories ==
+
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).
  
−
No changes so far.
+
{| class="wikitable" {{added}}
−
 
 
−
== Plugin Channels ==
 
−
 
 
−
No changes so far.
 
−
 
 
−
== Play ==
 
−
 
 
−
=== Clientbound ===
 
−
==== Spawn Mob ====
 
−
 
 
−
Sent by the server when a mob entity is spawned.
 
−
 
 
−
{| 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="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.
 
  |-
 
  |-
−
  | Entity UUID
+
  | rowspan="3"| Links
−
  | UUID
+
| Is built-in
−
  |  
+
| rowspan="3"| {{Type|Array}}
 +
  | {{Type|Boolean}}
 +
  | Determines if the following label is built-in (from enum) or custom (text component).
 
  |-
 
  |-
−
  | Type
+
  | Label
−
  | VarInt
+
  | {{Type|VarInt}} {{Type|Enum}} / {{Type|Text Component}}
−
  | The type of mob. See [[Entities#Mobs]]
+
  | See below.
 
  |-
 
  |-
−
  | X
+
  | URL
−
  | Double
+
  | {{Type|String}}
−
  |  
+
  | Valid URL.
 +
|}
 +
 
 +
 
 +
{| class="wikitable" {{added}}
 +
! ID
 +
! Name
 +
! Notes
 
  |-
 
  |-
−
  | Y
+
  | 0
−
  | Double
+
  | Bug Report
−
  |  
+
  | Displayed on connection error screen; included as a comment in the disconnection report.
 
  |-
 
  |-
−
  | Z
+
  | 1
−
  | Double
+
  | Community Guidelines
 
  |  
 
  |  
 
  |-
 
  |-
−
  | Yaw
+
  | 2
−
  | Angle
+
  | Support
 
  |  
 
  |  
 
  |-
 
  |-
−
  | Pitch
+
  | 3
−
  | Angle
+
  | Status
 
  |  
 
  |  
 
  |-
 
  |-
−
  | Head Pitch
+
  | 4
−
  | Angle
+
  | Feedback
 
  |  
 
  |  
 
  |-
 
  |-
−
  | Velocity X
+
  | 5
−
  | Short
+
  | Community
−
| Same units as [[#Entity Velocity|Entity Velocity]]
 
−
|-
 
−
| Velocity Y
 
−
| Short
 
−
| Same units as [[#Entity Velocity|Entity Velocity]]
 
−
|-
 
−
| Velocity Z
 
−
| Short
 
−
| Same units as [[#Entity Velocity|Entity Velocity]]
 
−
|- {{removed}}
 
−
| Metadata
 
−
| [[Entities#Entity Metadata Format|Entity Metadata]]
 
 
  |  
 
  |  
−
|}
 
−
 
−
==== Spawn Player ====
 
−
 
−
This packet is sent by the server when a player comes into visible range, ''not'' when a player joins.
 
−
 
−
This packet must be sent after the [[#Player Info|Player Info]] packet that adds the player data for the client to use when spawning a player. If the Player Info for the player spawned by this packet is not present when this packet arrives, Notchian clients will not spawn the player entity. The Player Info packet includes skin/cape data.
 
−
 
−
Servers can, however, safely spawn player entities for players not in visible range. The client appears to handle it correctly.
 
−
 
−
{| class="wikitable"
 
−
! Packet ID
 
−
! State
 
−
! Bound To
 
−
! Field Name
 
−
! Field Type
 
−
! Notes
 
−
|-
 
−
|rowspan="8"| 0x05
 
−
|rowspan="8"| Play
 
−
|rowspan="8"| Client
 
−
| Entity ID
 
−
| VarInt
 
−
| Player's EID
 
 
  |-
 
  |-
−
  | Player UUID
+
  | 6
−
  | UUID
+
  | Website
−
| See below for notes on {{Minecraft Wiki|Server.properties#online-mode|offline mode}} and NPCs
 
−
|-
 
−
| X
 
−
| Double
 
 
  |  
 
  |  
 
  |-
 
  |-
−
  | Y
+
  | 7
−
  | Double
+
  | Forums
 
  |  
 
  |  
 
  |-
 
  |-
−
  | Z
+
  | 8
−
  | Double
+
  | News
 
  |  
 
  |  
 
  |-
 
  |-
−
  | Yaw
+
  | 9
−
  | Angle
+
  | Announcements
 
  |  
 
  |  
 
  |-
 
  |-
−
| Pitch
 
−
| Angle
 
−
|
 
−
|- {{removed}}
 
−
| Metadata
 
−
| [[Entities#Entity Metadata Format|Entity Metadata]]
 
−
|
 
 
  |}
 
  |}
  
−
When in {{Minecraft Wiki|Server.properties#online-mode|online mode}}, the UUIDs must be valid and have valid skin blobs.
+
=== Serverbound ===
  
−
In offline mode, [[Wikipedia:Universally unique identifier#Versions 3 and 5 (namespace name-based)|UUID v3]] is used with the String <code>OfflinePlayer:&lt;player name&gt;</code>, encoded in UTF-8 (and case-sensitive).
+
No changes so far.
  
−
For NPCs UUID v2 should be used. Note:
+
== Play ==
  
−
<+Grum> i will never confirm this as a feature you know that :)
+
=== Clientbound ===
  
−
In an example UUID, <code>xxxxxxxx-xxxx-Yxxx-xxxx-xxxxxxxxxxxx</code>, the UUID version is specified by <code>Y</code>. So, for UUID v3, <code>Y</code> will always be <code>3</code>, and for UUID v2, <code>Y</code> will always be <code>2</code>.
+
==== Clientbound Report Details (play) ====
  
−
==== Update Block Entity ====
+
Contains a list of key-value text entries that are included in any crash or disconnection report generated during connection to the server.
  
−
Sets the block entity associated with the block at the given location.
+
{| class="wikitable" {{added}}
−
 
 
−
{| 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="3"| {{change|0x09|0x0A}}
+
  | rowspan="3"| 0x7A
−
  |rowspan="3"| Play
+
  | rowspan="3"| Configuration
−
  |rowspan="3"| Client
+
  | rowspan="3"| Client
−
  | Location
+
  | colspan="2"| Details Count
−
  | Position
+
  | colspan="2"| {{Type|VarInt}} (32)
−
  |  
+
  | The number of details in the following array.
 
  |-
 
  |-
−
  | Action
+
  | rowspan="2"| Details
−
  | Unsigned Byte
+
| Title
−
  | The type of update to perform, see below
+
| rowspan="2"| {{Type|Array}}
 +
  | {{Type|String}} (128)
 +
  |
 
  |-
 
  |-
−
  | NBT Data
+
  | Description
−
  | [[NBT|NBT Tag]]
+
  | {{Type|String}} (4096)
−
  | Data to set.  May be a TAG_END (0), in which case the block entity at the given location is removed (though this is not required since the client will remove the block entity automatically on chunk unload or block removal)
+
  |
−
|}
+
|}
  
−
''Action'' field:
+
==== Clientbound Server Links (play) ====
  
−
* '''1''': Set data of a mob spawner (everything except for SpawnPotentials: current delay, min/max delay, mob to be spawned, spawn count, spawn range, etc.)
+
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).
−
* '''2''': Set command block text (command and last execution status)
 
−
* '''3''': Set the level, primary, and secondary powers of a beacon
 
−
* '''4''': Set rotation and skin of mob head
 
−
* '''5''': Declare a conduit
 
−
* '''6''': Set base color and patterns on a banner
 
−
* '''7''': Set the data for a Structure tile entity
 
−
* '''8''': Set the destination for a end gateway
 
−
* '''9''': Set the text on a sign
 
−
* '''10''': Unused
 
−
* '''11''': Declare a bed
 
−
* '''12''': Set data of a jigsaw block
 
−
* '''13''': Set items in a campfire
 
−
* {{change||'''14''': Beehive information}}
 
  
−
=== Serverbound ===
+
{| class="wikitable" {{added}}
−
 
 
−
No changes so far.
 
−
 
 
−
== Handshaking ==
 
−
 
 
−
=== Clientbound ===
 
−
 
 
−
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.
 
−
 
 
−
=== Serverbound ===
 
−
 
 
−
==== Handshake ====
 
−
 
 
−
This causes the server to switch into the target state.
 
−
 
 
−
{| 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="4"| 0x00
+
  | rowspan="4"| 0x7B
−
  |rowspan="4"| Handshaking
+
  | rowspan="4"| Configuration
−
  |rowspan="4"| Server
+
  | rowspan="4"| Client
−
  | Protocol Version
+
  | colspan="2"| Links Count
−
  | VarInt
+
  | colspan="2"| {{Type|VarInt}}
−
  | See [[protocol version numbers]] (currently {{change|498|550}})
+
| 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
 +
|
 
  |-
 
  |-
−
  | Server Address
+
  | 6
−
  | String
+
  | Website
−
  | Hostname or IP, e.g. localhost or 127.0.0.1, that was used to connect. The Notchian server does not use this information. Note that SRV records are a complete redirect, e.g. if _minecraft._tcp.example.com points to mc.example.org, users connecting to example.com will provide mc.example.org as server address in addition to connecting to it.
+
  |  
−
  |-  
+
  |-
−
  | Server Port
+
  | 7
−
  | Unsigned Short
+
  | Forums
−
  | Default is 25565. The Notchian server does not use this information.
+
  |  
 +
  |-
 +
| 8
 +
| News
 +
|
 +
|-
 +
| 9
 +
| Announcements
 +
|
 
  |-
 
  |-
−
| Next State
 
−
| VarInt Enum
 
−
| 1 for [[#Status|status]], 2 for [[#Login|login]]
 
 
  |}
 
  |}
−
 
−
== Status ==
 
−
 
−
=== Clientbound ===
 
−
 
−
No changes so far.
 
−
 
−
=== Serverbound ===
 
−
 
−
No changes so far.
 
−
 
−
== Login ==
 
−
 
−
=== Clientbound ===
 
−
 
−
No changes so far.
 
  
 
=== Serverbound ===
 
=== Serverbound ===
  
 
No changes so far.
 
No changes so far.
−
 
  
 
[[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"