---
features:
  - The adds support for pxc to grow a cluster.
    * api and taskmanager support for shrinking a cluster
    * validate that the networks given are the same for each instance in
      the cluster.
    * make sure to add the existing networks on an instance in the
      cluster.
    * add new Error task for grow and shrink.
    * nova client version configuration changed to a string option rather
      than an int option because the nova microversions change nova api
      output. This was needed for the network interfaces on existing
      instances.
    * testing for grow and shrink cluster
