---
fixes:
  - ``--os-region-name`` or ``OS_REGION_NAME`` is fully supported now and will
    be passed to Mistral service in order to get OpenStack service client for
    the specific region.

Add release note for region name bugfix
Add release note for region name bugfix

For https://review.openstack.org/#/c/448321/

Change-Id: I780b459466914e39c84815b412997465749ebbc8
