Change game version or server build

Most games keep their version settings on the panel’s Startup page. Minecraft is one example: it has the game version and, for Paper, the build.

1. Stop the server and make a backup.
2. Open Startup and change the variable, for example MINECRAFT_VERSION to latest or a specific version such as 1.21.4.
3. Start the server. On boot it downloads the version you chose.

Downgrading an existing world is risky: older versions often can’t read a world saved by a newer one. Start a fresh world, or keep the backup handy.

Switching to a different server type

Some types can’t be switched from the Startup page, for example going from Paper to Forge. If yours can’t, open a ticket and say which type you want. Back up first, because the files differ between types.