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Minecraft

How to Change Minecraft Server Version

Guide to changing your Minecraft server version safely.

Change your server version to access new features or maintain compatibility with players.

Changing the Version

  1. Stop your server and create a backup
  2. Go to the Startup tab and change the Version field
  3. Go to the Settings tab and click Reinstall
  4. Start your server and run /version to verify

Warning

Downgrading is difficult and can corrupt worlds. Always backup first and check for incompatible blocks.

Java Version Requirements

If you get a Java error, change the Java Version in the Settings tab:

  • Java 8: Minecraft 1.14 - 1.16.5
  • Java 16: Minecraft 1.17 - 1.17.1
  • Java 17: Minecraft 1.18+ (Recommended)
  • Java 18-21: Latest versions

Common Issues

Server won't start

  • Java version incompatibility
  • Fix: Update Java version in Settings tab

World corruption after downgrading

  • Newer world data isn't compatible with older versions
  • Fix: Restore from backup or use conversion tools

Plugins stop working

  • Plugin compatibility varies between versions
  • Fix: Update plugins to compatible versions

Players can't connect

  • Client-server version mismatch
  • Fix: Have players update their Minecraft client
How to Change Minecraft Server Version