Harvester v1.2.1 is now available from https://github.com/harvester/harvester/releases/tag/v1.2.1 . Make sure you read https://docs.harvesterhci.io/v1.2/upgrade/index and then https://docs.harvesterhci.io/v1.2/upgrade/v1-2-0-to-v1-2-1 before upgrading.