---
prelude: >
  - Add VHDX to list of supported disk format.
features:
  - The identifier ``vhdx`` has been added to the list of
    supported disk formats in Glance. The respective
    configuration option has been updated and the default
    list shows ``vhdx`` as a supported format.
upgrade:
  - The ``disk_format`` config option enables ``vhdx`` as
    supported by default.