---
features:
  - A new ``OS::Neutron:SubnetPool`` resource that helps in
   managing the lifecycle of neutron subnet pool.
   Availability of this resource depends on availability of
   neutron ``subnet_allocation`` API extension.
  - Resource ``OS::neutron::Subnet`` now supports ``subnetpool``
   optional property, that will automate the allocation of CIDR
   for the subnet from the specified subnet pool.