---
features:
  - |
    The new ``nova::compute::image_cache`` class has been added to manage
    parameters for image cache feature.
deprecations:
  - |
    The following parameters in the ``nova::compute::libvirt`` class have been
    deprecated and will be removed in a future release. Use the corresponding
    parameter in the new ``nova::compute::image_cache`` class.

    - ``remove_unused_base_images``
    - ``remove_unused_original_minimum_age_seconds``
    - ``remove_unused_resize_minimum_age_seconds``