Choosing a version
Pick the version from the list when you create the server. HaruHost installs the Java that version needs, so older versions run as easily as the newest.
Updating on your terms
- Any update: follow every new release.
- Patch release: stay within the version line, for example 1.21.3 to 1.21.11, so a modded server stays on its version line.
Add a backup step before the update in the same automation, so a world is never updated without a copy.
Questions
Can I downgrade a Minecraft world?
Minecraft doesn't support opening a world in an older version. Restore the backup made before the update instead.