[openstack-dev] [keystone] Keystone support of Multi-Factor Authentication ?

Keystone guys, What is the current status of Keystone supporting Multi-Factor Authentication ? https://specs.openstack.org/openstack/keystone-specs/specs/keystone/rocky/mf... * Does this work provide true MFA ? * Is this work still active ? Are there other solutions for MFA for OpenStack Keystone ? Greg.