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Change the Minecraft version

Change the Minecraft version of a Victus server from the Startup tab, back up first, and update your plugins/mods to match.

minecraftversionupdateupgradedowngradestartup

The Minecraft version is controlled by a variable on the Startup tab. On most eggs you set the target version there and the correct JAR downloads on the next start. Upgrading is generally safe; downgrading (going to an older version) is risky because newer world data cannot always be read by an older version.

Back up before you change the version

A version change can rewrite world data and may trigger a reinstall that wipes files. ALWAYS create a Backup (Backups tab) or download your world first. Downgrades in particular can corrupt a world saved by a newer version.

Change it

  1. 1Create a backup from the Backups tab (and/or download the world from Files).
  2. 2Open the Startup tab and set the version variable to the version you want (or "latest").
  3. 3Save the change.
  4. 4Go to the Console tab and Restart. The new JAR downloads and the server boots.
  5. 5If nothing changed, the server may cache the old JAR — do a reinstall from the Settings tab (this can wipe files, so keep that backup).

After changing

  • Update every plugin/mod to a build for the new MC version — old ones are the top cause of post-update crashes.
  • Check the console on first boot for version/incompatibility warnings.
  • Tell your players to use the matching client version (and matching mods for modded servers).

Snapshots and gaps

Not every version/snapshot is available on every egg, and jumping across major versions can change world format. Move one major version at a time if you have a valuable world, testing after each step.

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