---
upgrade:
  - |
    The default bootstrap user has been changed to ``cloud-user`` if
    ``os_distribution`` is set to ``centos``. Set ``*_bootstrap_user``
    variables to ``centos`` to retain existing behaviour.
fixes:
  - |
    The default bootstrap user has been changed to ``cloud-user`` if
    ``os_distribution`` is set to ``centos``, to match official cloud images.
