[ironic]About the OS supported by Diskimage-builder

To whom it may concern. My name is Junya Noguchi. I have some questions about the supported OS for Diskimage-builder operation. Please respond. References https://docs.openstack.org/ironic-python-agent-builder/latest/admin/dib.html Does it mean that the OS that says "work but receive only limited testing and support" works but is not supported? References https://docs.openstack.org/diskimage-builder/latest/ This document describes RHEL and other operating systems that are not supported in the previous question. Are these operating systems supported? Also, are there any plans to support more operating systems in the future? Best regards, Junya Noguchi