If you updated your Minecraft server to a new version but want to revert to a previous version for whatever reason, you have the option to do so.
If you have a backup, you can restore it and change your server type back to the previous version. If you don't have a backup, generating a new world may be necessary.
# Downgrading your Server
If you want to revert your Minecraft server to a previous version, you can restore a backup you created before updating by following this guide.
(Recommended) If you did not create a backup before updating generating a new world is recommended. Any world generation provided by the newer version may cause issues when reverting to an older version. Resetting the world can be done by following this guide.
After resetting the world, set your server type to the desired Minecraft server version and start it up by following this guide. We recommend that you select the same server type/Minecraft version used before updating to a higher version, especially if the world wasn't reset during the downgrade.