---
upgrade:
  - |
    The deprecated `api`, `api_key`, and `api_params` parameters for `LLMEvaluator`, `ContextRelevanceEvaluator`, and
    `FaithfulnessEvaluator` have been removed.

    By default, these components will continue to use OpenAI in JSON mode.

    To customize the LLM, use the `chat_generator` parameter with a `ChatGenerator` instance configured to return a
    response in JSON format. For example:
    `chat_generator=OpenAIChatGenerator(generation_kwargs={"response_format": {"type": "json_object"}})`.
