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World desk3 min

How to Check Which Minecraft Version Your World and Server Are Running

Minecraft client, save, and server versions are different checks. Start by confirming Java or Bedrock, then verify each one using the right method.

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Check the edition first, then check the client, saved world, or server separately: they can each have different version information. In Java Edition, F3+V displays client-side version details in Java 1.21.6; a Java world’s level.dat stores a save-format number; and the server’s running software package or startup logs identify the server build. These checks are not interchangeable.

First, confirm whether you’re using Java or Bedrock

Java Edition and Bedrock Edition are separate multiplayer ecosystems. Java players join Java games, and Bedrock players join Bedrock games; normal edition pairing does not support direct Java-to-Bedrock cross-play. Confirm that both sides use the same edition before comparing release numbers. See Minecraft’s multiplayer guidance and its Java and Bedrock edition comparison.

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Check the Minecraft client you launched

Java Edition

In Java Edition 1.21.6, press F3+V to print client-side version information, as documented in that release’s technical changes. On some compact keyboards, you may need to hold Fn as well. Because this shortcut is documented for that release, don’t assume it behaves identically in every later version.

You can also check the launcher’s selected installation or profile and the game’s title screen. Confirm the installation that was actually launched, especially if you have multiple profiles or versions installed.

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Bedrock Edition

Check the Bedrock game or platform’s displayed release and identify the client package you launched. Do not use F3+V as a Bedrock version check; the documented shortcut is for Java Edition.

Check a Java world’s saved version metadata

A Java single-player save’s level.dat contains a DataVersion integer. This is an internal save-data format identifier, not a plain-language release label. A mapping is needed to interpret it as a game release, and the value does not necessarily reveal the version in which the world was first created: a world can be upgraded and saved in a later version. The Minecraft Wiki’s Data version reference documents the metadata and its mapping.

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  1. Close the world and make a backup of its save folder before inspecting it.
  2. Open level.dat with an NBT-aware viewer; it is not a text file to edit in a plain text editor.
  3. Find DataVersion, then consult a maintained mapping if you need a corresponding release label.

Treat the result as evidence about the save’s data format, not proof of its original creation version or the version currently running on a server.

Check the server software that is actually running

If you administer a Java server

Check the exact server JAR selected by the startup command and the server’s startup banner or logs. A player’s F3+V display identifies client-side information; it does not establish which server JAR or build the host started.

If you administer a Bedrock Dedicated Server

Verify the release of the Bedrock Dedicated Server package you downloaded and started, then check its startup output. The official Minecraft server download page distinguishes Java and Bedrock server software and their requirements.

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If someone else runs the server

Ask the owner or host which edition and exact server release or build is running. A public status result or compatibility bridge may not report the authoritative software identity, so don’t treat any one general-purpose query as definitive.

Don’t mistake Bedrock world settings for a game version

Bedrock has several versioning systems. Microsoft describes base_game_version as a world-template concept in a template’s manifest.json; it is not a universal field that identifies the current game or server release for every Bedrock world. See Microsoft’s Bedrock versioning guidance.

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Likewise, the Bedrock Dedicated Server setting level-name selects the world folder the server loads; it does not identify the server program’s release. The server properties reference describes that setting.

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Compare the right details when a multiplayer connection fails

Record these separately rather than relying on a single version number:

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  • Edition and platform: Java or Bedrock, and the platform running the client.
  • Client release or build: The version shown by the launched game or launcher.
  • Server software and build: The package or JAR the host actually started.
  • Save metadata: Java DataVersion or relevant Bedrock template metadata, interpreted only for what that metadata represents.
  • Join method: Dedicated server, Realm, LAN, or another host path. Check current official requirements for exact compatibility questions.

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