"application/json": {
                                    "schema": {
                                        "$ref": "#/components/schemas/HTTPValidationError"
                                    }
                                }
                            },
                        },
                        "500": {"description": "Server error level 0"},

* ✨ Add support for disabling the separation of input and output JSON Schemas in OpenAPI with Pydantic v2 with `separate_input_output_schemas=False`. PR [#10145](https://github.com/tiangolo/fastapi/pull/10145) by [@tiangolo](https://github.com/tiangolo).
    * New docs [Separate OpenAPI Schemas for Input and Output or Not](https://fastapi.tiangolo.com/how-to/separate-openapi-schemas/).