releasenotes/notes/config-image-api-v1-default-to-false-39d5f2xafc534ab1.yaml

---
upgrade:
  - |
    Changed the default value of 'api_v1' config option in the
    'image-feature-enabled' group to False from True, because
    glance v1 APIs are deprecated. Please set True explicitly
    on the option if still testing glance v1 APIs.