--- prelude: > During the Ocata cycle, a number of improvements have been made to bifrost to improve the managability and longevity of a bifrost installation. Coupled with a number of fixes, and improvements, users upgrading should take the time to read the entire release notes. A few highlights are below: * Bifrost now installs and utilizes Ansible 2.1 by default from PyPI. * Ironic's default of modifying a pre-existing ironic.conf upon the installation being re-executed, has been changed to a utilize a template file. * Bifrost supports generating and reading from a os-client-config ``clouds.yaml`` file for obtaining credentials. * Bifrost can now leverage authentiation, as well as install and configure keystone if requested by the installer. * As a number of in-tree drivers in ironic were removed this past cycle, due to lack of third-party CI, support has been added to enable installation of the staging drivers repository.