{
  "schemaVersion": 1,
  "families": {
    "api": {
      "additive": {
        "before": { "required": ["id"], "properties": { "id": {} } },
        "after": {
          "required": ["id"],
          "properties": { "id": {}, "displayName": {} }
        }
      },
      "breaking": {
        "before": { "required": ["id"], "properties": { "id": {} } },
        "after": {
          "required": ["id", "name"],
          "properties": { "id": {}, "name": {} }
        }
      }
    },
    "config": {
      "additive": {
        "before": { "required": ["APP_ENV"], "properties": { "APP_ENV": {} } },
        "after": {
          "required": ["APP_ENV"],
          "properties": { "APP_ENV": {}, "OPTIONAL_FLAG": {} }
        }
      },
      "breaking": {
        "before": { "required": ["APP_ENV"], "properties": { "APP_ENV": {} } },
        "after": {
          "required": ["APP_ENV", "NEW_REQUIRED"],
          "properties": { "APP_ENV": {}, "NEW_REQUIRED": {} }
        }
      }
    },
    "storage": {
      "additive": {
        "before": { "properties": { "theme": {} } },
        "after": { "properties": { "theme": {}, "contrast": {} } }
      },
      "breaking": {
        "before": { "properties": { "theme": {} } },
        "after": { "properties": {} }
      }
    },
    "release": {
      "additive": {
        "before": { "required": ["buildId"], "properties": { "buildId": {} } },
        "after": {
          "required": ["buildId"],
          "properties": { "buildId": {}, "builtAt": {} }
        }
      },
      "breaking": {
        "before": { "required": ["buildId"], "properties": { "buildId": {} } },
        "after": {
          "required": ["buildId", "assetManifestHash"],
          "properties": { "buildId": {}, "assetManifestHash": {} }
        }
      }
    }
  }
}