---
features:
  - OS::Nova::Server now supports ephemeral_size and ephemeral_format
    properties for block_device_mapping_v2 property. Property ephemeral_size is
    integer, that require flavor with ephemeral disk size greater that 0.
    Property ephemeral_format is string with allowed values ext2, ext3, ext4,
    xfs and ntfs for Windows guests; it is optional and if has no value, uses
    default, defined in nova config file.