Difference between revisions of "Pre-release protocol"

From wiki.vg
Jump to navigation Jump to search
(Updated to 1.21-pre2)
 
Line 1: Line 1:
−
This page documents the changes from the [[Protocol|last stable Minecraft release]] (currently 1.1) to the current pre-release
+
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.
  
−
== New packets ==
+
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.
  
−
=== Entity Head Look (0x23) ===
+
== Contents ==
  
−
Changes the direction an entity's head is facing.
+
<div style="float:right;">__TOC__</div>
  
−
{| class="wikitable"
+
=== Data types ===
−
|- class="row0"
 
−
! class="col0" | Packet ID
 
−
! class="col1" | Field Name
 
−
! class="col2" | Field Type
 
−
! class="col3" | Example
 
−
! class="col4" | Notes
 
−
|- class="row1"
 
−
| class="col0 centeralign" rowspan="2" | 0x23
 
−
| class="col1 centeralign" | Entity ID
 
−
| class="col2 centeralign" | int
 
−
| class="col3 centeralign" |
 
−
| class="col4" |
 
−
|- class="row2"
 
−
| class="col0 centeralign" | Head Yaw
 
−
| class="col1 centeralign" | byte
 
−
| class="col2 centeralign" |
 
−
| class="col3" | Head yaw in steps of 2π/256
 
−
|- class="row3"
 
−
! class="col0" | Total Size:
 
−
| class="col1 rightalign" colspan="4" | 6 bytes
 
−
|}
 
  
−
=== Update Tile Entity (0x84) ===
+
No changes documented so far.
  
−
Essentially a block update on a tile entity.
+
=== Packets ===
  
 
{| class="wikitable"
 
{| class="wikitable"
−
|- class="row0"
+
! ID
−
! class="col0" | Packet ID
+
! Packet name
−
! class="col1" | Field Name
+
!colspan="2"| Documentation
−
! class="col2" | Field Type
+
|-
−
! class="col3" | Example
+
!colspan="4"| Configuration clientbound
−
! class="col4" | Notes
+
{{PacketList|0x0F|Clientbound Report Details (configuration)|rel=added}}
−
|- class="row1"
+
{{PacketList|0x10|Clientbound Server Links (configuration)|rel=added}}
−
| class="col0 centeralign" rowspan="7" | 0x84
+
|-
−
| class="col1 centeralign" | X
+
!colspan="4"| Play clientbound
−
| class="col2 centeralign" | int
+
{{PacketList|0x7A|Clientbound Report Details (play)|rel=added}}
−
| class="col3 centeralign" |  
+
{{PacketList|0x7B|Clientbound Server Links (play)|rel=added}}
−
| class="col4" |
+
|-
−
|- class="row2"
 
−
| class="col0 centeralign" | Y
 
−
| class="col1 centeralign" | short
 
−
| class="col2 centeralign" |
 
−
| class="col3" |
 
−
|- class="row3"
 
−
| class="col0 centeralign" | Z
 
−
| class="col1 centeralign" | int
 
−
| class="col2 centeralign" |
 
−
| class="col3" |
 
−
|- class="row4"
 
−
| class="col0 centeralign" | Action
 
−
| class="col1 centeralign" | byte
 
−
| class="col2 centeralign" |
 
−
| class="col3" | The type of update to perform
 
−
|- class="row5"
 
−
| class="col0 centeralign" | Custom 1
 
−
| class="col1 centeralign" | int
 
−
| class="col2 centeralign" |
 
−
| class="col3" | Varies
 
−
|- class="row6"
 
−
| class="col0 centeralign" | Custom 2
 
−
| class="col1 centeralign" | int
 
−
| class="col2 centeralign" |
 
−
| class="col3" | Varies
 
−
|- class="row7"
 
−
| class="col0 centeralign" | Custom 3
 
−
| class="col1 centeralign" | int
 
−
| class="col2 centeralign" |  
 
−
| class="col3" | Varies
 
−
|- class="row8"
 
−
! class="col0" | Total Size:
 
−
| class="col1 rightalign" colspan="4" | 24 bytes
 
 
|}
 
|}
  
−
==== Actions ====
+
== Handshake ==
  
−
* '''1''': Set mob displayed inside a mob spawner. Custom 1 contains the [[Entities#Mobs|mob type]]
+
No changes so far.
  
−
== Changed packets ==
+
== Status ==
  
−
=== [[Protocol#Login_Request_.280x01.29|Login Request (0x01)]] ===
+
No changes so far.
  
−
World height was changed to an integer. -- Please verify, I found world height to still be a byte but set to 0.
+
== Login ==
  
−
{| class="wikitable"
+
No changes so far.
−
|- class="row0"
+
 
−
! class="col0" | Packet ID
+
== Configuration ==
−
! class="col1" | Field Name
 
−
! class="col2" | Field Type
 
−
! class="col3" | Example
 
−
! class="col4" | Notes
 
−
|- class="row1"
 
−
| class="col0 centeralign" rowspan="9" | 0x01
 
−
| class="col1 centeralign" | Entity ID
 
−
| class="col2 centeralign" | int
 
−
| class="col3 centeralign" | <code>1298</code>
 
−
| class="col4" | The Players Entity ID
 
−
|- class="row2"
 
−
| class="col0 centeralign" | Not used
 
−
| class="col1 centeralign" | string
 
−
| class="col2 centeralign" | (empty string)
 
−
| class="col3" | Not used
 
−
|- class="row3"
 
−
| class="col0 centeralign" | Map Seed
 
−
| class="col1 centeralign" | long
 
−
| class="col2 centeralign" | <code>971768181197178410</code>
 
−
| class="col3" | The server's map seed. Must be sent in respawn packets by the client.
 
−
|- class="row4"
 
−
| class="col0 centeralign" | Level Type
 
−
| class="col1 centeralign" | string
 
−
| class="col2 centeralign" | DEFAULT
 
−
| class="col3" | DEFAULT or SUPERFLAT; level-type in server.properties
 
−
|- class="row5"
 
−
| class="col0 centeralign" | Server mode
 
−
| class="col1 centeralign" | int
 
−
| class="col2 centeralign" | <code>0</code>
 
−
| class="col3" | 0 for survival, 1 for creative
 
−
|- class="row6"
 
−
| class="col0 centeralign" | Dimension
 
−
| class="col1 centeralign" | byte
 
−
| class="col2 centeralign" | <code>0</code>
 
−
| class="col3" | <code>-1</code>: The Nether, <code>0</code>: The Overworld, <code>1</code>: The End
 
−
|- class="row7"
 
−
| class="col0 centeralign" | Difficulty
 
−
| class="col1 centeralign" | byte
 
−
| class="col2 centeralign" | <code>1</code>
 
−
| class="col3" | <code>0</code> thru <code>3</code> for Peaceful, Easy, Normal, Hard
 
−
|- class="row8"
 
−
| class="col0 centeralign" | World height
 
−
| class="col1 centeralign" | int
 
−
| class="col2 centeralign" | <code>256</code>
 
−
| class="col3" | Defaults to <code>256</code>
 
−
|- class="row9"
 
−
| class="col0 centeralign" | Max players
 
−
| class="col1 centeralign" | unsigned byte
 
−
| class="col2 centeralign" | <code>8</code>
 
−
| class="col3" | Used by the client to draw the player list
 
−
|- class="row10"
 
−
! class="col0" | Total Size:
 
−
| class="col1 rightalign" colspan="4" | 28 bytes + length of strings
 
−
|}
 
  
−
=== [[Protocol#Handshake_.280x02.29|Handshake (0x02)]] ===
+
=== Clientbound ===
  
−
==== Client to Server ====
+
==== Clientbound Report Details (configuration) ====
  
−
The hostname and port were added to this packet, most likely to allow [http://en.wikipedia.org/wiki/Virtual_hosting virtual hosting] .([https://github.com/sadimusi/MVHP/blob/master/mvhp.py sample implementation])
+
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}}
−
|- class="row0"
+
! Packet ID
−
! class="col0" | Packet ID
+
! State
−
! class="col1" | Field Name
+
! Bound To
−
! class="col2" | Field Type
+
! colspan="2"| Field Name
−
! class="col3" | Example
+
! colspan="2"| Field Type
−
! class="col4" | Notes
+
! Notes
−
|- class="row1"
+
|-
−
| class="col0 centeralign" | 0x02
+
| rowspan="3"| 0x0F
−
| class="col1 centeralign" | UsernameAndHost
+
| rowspan="3"| Configuration
−
| class="col2 centeralign" | string
+
| rowspan="3"| Client
−
| class="col3 centeralign" | <code>TkTech;localhost:25565</code>
+
| colspan="2"| Details Count
−
| class="col4" | The username of the player attempting to connect, and the host he is connecting to, seperated by a semicolon.
+
| colspan="2"| {{Type|VarInt}} (32)
−
|- class="row2"
+
| The number of details in the following array.
−
! class="col0" | Total Size:
+
|-
−
| class="col1 rightalign" colspan="4" | 3 bytes + length of strings
+
| rowspan="2"| Details
 +
| Title
 +
| rowspan="2"| {{Type|Array}}
 +
| {{Type|String}} (128)
 +
|
 +
|-
 +
| Description
 +
| {{Type|String}} (4096)
 +
|
 
|}
 
|}
  
−
=== [[Protocol#Respawn_.280x09.29|Respawn (0x09)]] ===
+
==== Clientbound Server Links (configuration) ====
  
−
Dimension is now an int, slightly bizarrely. I wonder if they intended to make world_height an int, in line with 0x01 login?
+
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}}
−
|- class="row0"
+
! Packet ID
−
! class="col0" | Packet ID
+
! State
−
! class="col1" | Field Name
+
! Bound To
−
! class="col2" | Field Type
+
! colspan="2"| Field Name
−
! class="col3" | Example
+
! colspan="2"| Field Type
−
! class="col4" | Notes
+
! Notes
−
|- class="row1"
+
|-
−
| class="col0 centeralign" rowspan="6" | 0x09
+
| rowspan="4"| 0x10
−
| class="col1 centeralign" | Dimension
+
| rowspan="4"| Configuration
−
| class="col2 centeralign" | int
+
| rowspan="4"| Client
−
| class="col3 centeralign" | <code>1</code>
+
| colspan="2"| Links Count
−
| class="col4" | <code>-1</code>: The Nether, <code>0</code>: The Overworld, <code>1</code>: The End
+
| colspan="2"| {{Type|VarInt}}
−
|- class="row2"
+
| The number of links in the following array.
−
| class="col1 centeralign" | Difficulty
+
|-
−
| class="col2 centeralign" | byte
+
| rowspan="3"| Links
−
| class="col3 centeralign" | <code>1</code>
+
| Is built-in
−
| class="col4" | <code>0</code> thru <code>3</code> for Peaceful, Easy, Normal, Hard. <code>1</code> is always sent c->s
+
| rowspan="3"| {{Type|Array}}
−
|- class="row2"
+
| {{Type|Boolean}}
−
| class="col1 centeralign" | Creative mode
+
| Determines if the following label is built-in (from enum) or custom (text component).
−
| class="col2 centeralign" | byte
+
|-
−
| class="col3 centeralign" | <code>1</code>
+
| Label
−
| class="col4" | <code>0</code> for survival, <code>1</code> for creative.
+
| {{Type|VarInt}} {{Type|Enum}} / {{Type|Text Component}}
−
|- class="row1"
+
| See below.
−
| class="col1 centeralign" | World height
+
|-
−
| class="col2 centeralign" | short
+
| URL
−
| class="col3 centeralign" | <code>128</code>
+
| {{Type|String}}
−
| class="col4" | Defaults to <code>128</code>
+
| Valid URL.
−
|- class="row1"
 
−
| class="col1 centeralign" | Map Seed
 
−
| class="col2 centeralign" | long
 
−
| class="col3 centeralign" | <code>-3815848935435401459</code>
 
−
| class="col4" | The server's map seed.
 
−
|- class="row1"
 
−
| class="col1 centeralign" | Level Type
 
−
| class="col2 centeralign" | string
 
−
| class="col3 centeralign" | DEFAULT
 
−
| class="col4" | See 0x01 login
 
−
|- class="row2"
 
−
! class="col0" | Total Size:
 
−
| class="col1 rightalign" colspan="4" | 19 bytes + length of string
 
 
|}
 
|}
  
−
=== [[Protocol#Mob_Spawn_.280x18.29|Mob Spawn (0x18)]] ===
 
  
−
New byte field: head yaw
+
{| 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 ===
  
−
This needs confirmation!
+
No changes so far.
  
−
{| class="wikitable"
+
== Play ==
−
|- class="row0"
 
−
! class="col0" | Packet ID
 
−
! class="col1" | Field Name
 
−
! class="col2" | Field Type
 
−
! class="col3" | Example
 
−
! class="col4" | Notes
 
−
|- class="row1"
 
−
| class="col0 centeralign" rowspan="9" | 0x18
 
−
| class="col1 centeralign" | EID
 
−
| class="col2 centeralign" | int
 
−
| class="col3 centeralign" | <code>446</code>
 
−
| class="col4" | Entity ID
 
−
|- class="row2"
 
−
| class="col0 centeralign" | Type
 
−
| class="col1 centeralign" | byte
 
−
| class="col2 centeralign" | <code>91</code>
 
−
| class="col3" | The type of mob. See [[Entities#Mobs]]
 
−
|- class="row3"
 
−
| class="col0 centeralign" | X
 
−
| class="col1 centeralign" | int
 
−
| class="col2 centeralign" | <code>13366</code>
 
−
| class="col3" | The Absolute Integer X Position of the object
 
−
|- class="row4"
 
−
| class="col0 centeralign" | Y
 
−
| class="col1 centeralign" | int
 
−
| class="col2 centeralign" | <code>2176</code>
 
−
| class="col3" | The Absolute Integer Y Position of the object
 
−
|- class="row5"
 
−
| class="col0 centeralign" | Z
 
−
| class="col1 centeralign" | int
 
−
| class="col2 centeralign" | <code>1680</code>
 
−
| class="col3" | The Absolute Integer Z Position of the object
 
−
|- class="row6"
 
−
| class="col0 centeralign" | Yaw
 
−
| class="col1 centeralign" | byte
 
−
| class="col2 centeralign" | <code>-27</code>
 
−
| class="col3" | The yaw in steps of 2π/256
 
−
|- class="row7"
 
−
| class="col0 centeralign" | Pitch
 
−
| class="col1 centeralign" | byte
 
−
| class="col2 centeralign" | <code>0</code>
 
−
| class="col3" | The pitch in steps of 2π/256
 
−
|- class="row8"
 
−
| class="col0 centeralign" | '''Head Yaw'''
 
−
| class="col1 centeralign" | byte
 
−
| class="col2 centeralign" |
 
−
| class="col3" | Head yaw in steps of 2π/256
 
−
|- class="row9"
 
−
| class="col0 centeralign" | Metadata
 
−
| class="col1 centeralign" | Metadata
 
−
| class="col2 centeralign" | <code>127</code>
 
−
| class="col3" | Varies by mob, see [[Entities]]
 
−
|- class="row10"
 
−
! class="col0" | Total Size:
 
−
| class="col1 rightalign" colspan="4" | 21 bytes + Metadata (at least 1)
 
−
|}
 
  
−
=== [[Protocol#Map_Chunk_.280x33.29|Map Chunk (0x33)]] ===
+
=== Clientbound ===
  
−
This is currently a ''best guess''
+
==== Clientbound Report Details (play) ====
  
−
Here's a packet capture: https://gist.github.com/1835702
+
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}}
−
|- class="row0"
+
! Packet ID
−
! class="col0" | Packet ID
+
! State
−
! class="col1" | Field Name
+
! Bound To
−
! class="col2" | Field Type
+
! colspan="2"| Field Name
−
! class="col3" | Example
+
! colspan="2"| Field Type
−
! class="col4" | Notes
+
! Notes
−
|- class="row1"
+
|-
−
| class="col0 centeralign" rowspan="8" | 0x33
+
| rowspan="3"| 0x7A
−
| class="col1 centeralign" | X
+
| rowspan="3"| Configuration
−
| class="col2 centeralign" | int
+
| rowspan="3"| Client
−
| class="col3 centeralign" |  
+
| colspan="2"| Details Count
−
| class="col4" | Chunk X Coordinate (*16 to get true X)
+
| colspan="2"| {{Type|VarInt}} (32)
−
|- class="row2"
+
| The number of details in the following array.
−
| class="col0 centeralign" | Z
+
|-
−
| class="col1 centeralign" | int
+
| rowspan="2"| Details
−
| class="col2 centeralign" |
+
| Title
−
| class="col3" | Chunk Z Coordinate (*16 to get true Z)
+
| rowspan="2"| {{Type|Array}}
−
|- class="row3"
+
| {{Type|String}} (128)
−
| class="col0 centeralign" | Ground-up contiguous
+
|
−
| class="col1 centeralign" | boolean
+
|-
−
| class="col2 centeralign" |
+
| Description
−
| class="col3" | This is True if the chunks consists of a contiguous column of non-air (i.e., indicated with a '1' in the bitmask) chunks starting at Y=0, followed by any number of unsent chunks containing only air.
+
| {{Type|String}} (4096)
−
|- class="row4"
+
|
−
| class="col0 centeralign" | Primary bit map
 
−
| class="col1 centeralign" | short
 
−
| class="col2 centeralign" | 15
 
−
| class="col3" | Bitmask with 1 for every 16x16x16 chunk which data follows in Compressed data.
 
−
|- class="row5"
 
−
| class="col0 centeralign" | Unknown, secondary bit map
 
−
| class="col1 centeralign" | short
 
−
| class="col2 centeralign" | 0
 
−
| class="col3" | I've only seen <code>0</code>. Used after (presumably) block ids, metadata, lighting, etc.
 
−
|- class="row6"
 
−
| class="col0 centeralign" | Compressed size
 
−
| class="col1 centeralign" | int
 
−
| class="col2 centeralign" |
 
−
| class="col3" | Size of compressed region data.
 
−
|- class="row7"
 
−
| class="col0 centeralign" | Unused Int
 
−
| class="col1 centeralign" | int
 
−
| class="col2 centeralign" | 0
 
−
| class="col3" | Doesn't seem to be used by the client. Always 0. I expect this is Mod API stuff.
 
−
|- class="row8"
 
−
| class="col0 centeralign" | Compressed data
 
−
| class="col1 centeralign" | unsigned byte array
 
−
| class="col2 centeralign" | <code>…</code>
 
−
| class="col3" | The region data is compressed using ZLib Deflate function. '''Confirmed!'''
 
−
|- class="row9"
 
−
! class="col0" | Total Size:
 
−
| class="col1 rightalign" colspan="4" | 22 bytes + Compressed chunk size
 
 
|}
 
|}
  
−
(Unconfirmed, guess) '''Height bit map''' where each bit indicates which vertical chunk it contain.
+
==== Clientbound Server Links (play) ====
−
Counting the number of binary 1's indicate the number of vertical chunks(16x16x16) of the uncompressed
 
  
−
N = number of vertical chunks.
+
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}}
−
|- class="row0"
+
! Packet ID
−
! class="col0" | Size
+
! State
−
! class="col1" | Name
+
! Bound To
−
! class="col2" | Example
+
! colspan="2"| Field Name
−
! class="col4" | Notes
+
! colspan="2"| Field Type
−
|- class="row1"
+
! Notes
−
| class="col0 centeralign" | 16*16*16*N
+
|-
−
| class="col1 centeralign" | Block ID
+
| rowspan="4"| 0x7B
−
| class="col2" | 7(bedrock)
+
| rowspan="4"| Configuration
−
| class="col4" | 1 byte per block.
+
| rowspan="4"| Client
−
|- class="row2"
+
| colspan="2"| Links Count
−
| class="col0 centeralign" | 16*16*16*N
+
| colspan="2"| {{Type|VarInt}}
−
| class="col1 centeralign" | Add Block ID
+
| The number of links in the following array.
−
| class="col2" | 0
+
|-
−
| class="col4" | (unconfirmed)1 byte per block.
+
| rowspan="3"| Links
−
|- class="row2"
+
| Is built-in
−
| class="col0 centeralign" | 16*16*8*N
+
| rowspan="3"| {{Type|Array}}
−
| class="col1 centeralign" | Unknown
+
| {{Type|Boolean}}
−
| class="col2" | 255
+
| Determines if the following label is built-in (from enum) or custom (text component).
−
| class="col3" | (unconfirmed) Biome? Skylight?
+
|-
−
|- class="row9"
+
| Label
−
! class="col0" | Total Size:
+
| {{Type|VarInt}} {{Type|Enum}} / {{Type|Text Component}}
−
| class="col1 rightalign" colspan="3" | 16*16*16*N*2 + 16*16*8*N bytes (uncompressed)
+
| See below.
 +
|-
 +
| URL
 +
| {{Type|String}}
 +
| Valid URL.
 
|}
 
|}
  
−
That would make the boolean mean "Contiguous?". Possibly a memory optimisation? The bit shifting in the chunk loading code makes this idea seem likely to me - good thought! [[User:Barneygale|Barneygale]] 08:37, 15 February 2012 (MST)
+
{| class="wikitable" {{added}}
−
: It could be an indicator that non included chunks are assumed to be empty/air, a guess --[[User:Ceiru|Ceiru]] 09:14, 15 February 2012 (MST)
+
! ID
−
 
+
! Name
−
:(edit conflict, lol)
+
! Notes
−
:The first part of the uncompressed data is the chunk block ids (I think), which as you say are loaded based on the bitmask. Each chunk is 4096 bytes.
+
|-
−
:Three near identical loops follow, iterating over the column of chunks. They all set the .a property of a qi - and I'm not sure what this is. I'm guessing it's a handler for chunk attributes like metadata, skylight and blocklight.
+
| 0
−
:Next there's a loop that bears a striking similarity to the first, but uses the second short as a bitmask. For each chunk, if it's mentioned in the mask, it will initialise or use the existing .e (another qi) of that chunk and copy data to it. Here's where the bool comes in. If the chunks are contiguous, and the current chunk is both loaded and has .e set, it will set .e to null.
+
| Bug Report
−
:Then there's some chunk initialisation stuff I don't understand. [[User:Barneygale|Barneygale]] 09:25, 15 February 2012 (MST)
+
| Displayed on connection error screen; included as a comment in the disconnection report.
−
 
+
|-
−
== Other changes ==
+
| 1
−
 
+
| Community Guidelines
−
Protocol version is now 27.
+
|  
−
 
+
|-
−
== Protocol History ==
+
| 2
−
 
+
| Support
−
=== 2012-02-15 ===
+
|
−
* 12w07a
+
|-
−
* Protocol version is now 27
+
| 3
−
* Updated packets: 0x01, 0x09, 0x33
+
| Status
 +
|
 +
|-
 +
| 4
 +
| Feedback
 +
|
 +
|-
 +
| 5
 +
| Community
 +
|
 +
|-
 +
| 6
 +
| Website
 +
|
 +
|-
 +
| 7
 +
| Forums
 +
|
 +
|-
 +
| 8
 +
| News
 +
|
 +
|-
 +
| 9
 +
| Announcements
 +
|
 +
|-
 +
|}
  
−
=== 2012-02-09 ===
+
=== Serverbound ===
−
* 12w06a
 
−
* Protocol version is now 25
 
−
* New packet: 0x84
 
  
−
=== 2012-01-26 ===
+
No changes so far.
−
* 12w04a
 
−
* Protocol version has not been changed
 
−
* Handshake Packet by client (0x02) now contains the server host and port
 
−
* Window Open Packet (0x64): WindowTitle is now longer than accepted by older clients. Contains a keyword such as "container.furnace"
 
  
−
=== 2012-01-19 ===
+
[[Category:Minecraft Modern]]
−
* 12w03a
 
−
* Protocol version is now 24
 
−
* New packet: 0x23
 
−
* MobSpawn: new field, 1 byte inserted before metadata.
 

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"