Minecraft:Protocol version

A protocol version number (PVN) or network version is an integer used to check for incompatibilities between the player's client and the server they are trying to connect to.<ref>server.jar, located in class com.mojang.bridge.game.GameVersion</ref><ref>Minecraft Wiki:Projects/wiki.vg merge/Protocol version numbers</ref>

Usage

File:Outdated client.png

An outdated client attempting to connect to a server on a newer version.

Client and server versions with the same protocol version are compatible with each other. For example, a client running Java Edition 1.8.9 can connect to a server running Java Edition 1.8, as both have a protocol version of 47.

Upon attempting to join a Minecraft:multiplayer server, the game checks if the client has a protocol version newer or older than the selected server; if it does, the game then alerts the player that their client (or the server) is outdated.

Versions with the same protocol version may not always be cross compatible – 25w41a and 1.21.9-rc1 erroneously have the same PVN, but connecting to a 25w41a server from 1.21.9-rc1 refuses the connection and displays "Network Protocol Error" and 25w41a crashes when attempting to join a 1.21.9-rc1 world.

Versioning

All versions, including minor releases and development versions on both

1. REDIRECT Template:Editions

Template:Redr, have their own protocol version. The version takes the form of an ever-increasing positive integer unlike client versions. Protocol versions may occasionally be skipped between major releases.

Since 1.16.4-pre1, protocol versions of Java Edition development releases take the form of very large numbers best represented using hexadecimal (represented by the prefix "0x" in the protocol version tables). These development release protocol versions have the 30th bit set to 1 and otherwise increment normally, starting from 0x40000001 (1073741825 in decimal). This was made to allow release versions to be cross-compatible while both being incompatible with their development versions. For example, both 1.20.5 and 1.20.6 have a protocol version of 766, and are therefore multiplayer cross-compatible, while both of these are incompatible with 1.20.6-rc1, which has a protocol version of 0x400000C0.

Storage location

Java Edition

version.json

Each Minecraft build since 18w47b specifies its current protocol version in the version.json file, found in the root directory of the Minecraft:client.jar and Minecraft:server.jar files.

• Template:Nbt/sprite version.json
  • Template:Nbt/sprite protocol_version: The protocol version of this build.

Version command

Running

1. REDIRECT Template:Command

Template:Redr (only present in 25w15a and later) prints the protocol version to chat.

Bedrock Edition

Since beta 1.2.0.22, the protocol version can be viewed by going into "Profile Settings" and scrolling down to the bottom. The protocol version appears in front of the text saying "Protocol Version:". It can also appear on the preview/beta debug text in front of the text saying "cli-pn".

List of protocol versions

The latest Java Edition release version, Template:V, has a protocol version of Template:Protocol version.
The latest Java Edition development version, Template:V, has a protocol version of {{#var:java-snap}}.

The latest Bedrock Edition release version, Template:V, has a protocol version of Template:Protocol version.
The latest Bedrock Edition development version, Template:V, has a protocol version of Template:Protocol version.

The latest Minecraft Education release version, Template:V, has a protocol version of Template:Protocol version.
The latest Minecraft Education development version, Template:V, has a protocol version of Template:Protocol version.

The tables below are sorted by data version.

History

See also

• Data version
• al_version

References

<references group="">

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Navigation

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