# Package io.vertx.config

- Interface Summary
  Interface | Description
  --- | ---
  ConfigRetriever | Defines a configuration retriever that read configuration from `ConfigStore` and tracks changes periodically.

- Class Summary
  Class | Description
  --- | ---
  ConfigChange | A structure representing a configuration change.
  ConfigRetrieverOptions | Options to configure the `ConfigRetriever`.
  ConfigRetrieverOptionsConverter | Converter and mapper for `ConfigRetrieverOptions`.
  ConfigStoreOptions | Data object representing the configuration of a configuration store.

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