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BREAKING CHANGE: Remove data from FinalResult #2443

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Aug 6, 2025
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BREAKING CHANGE: Remove data from FinalResult #2443

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BREAKING CHANGE: Remove `data` from `FinalResult`
Kludex Aug 6, 2025
0b7af85
Update docs/changelog.md
Kludex Aug 6, 2025
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2 changes: 2 additions & 0 deletions docs/changelog.md
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Expand Up @@ -16,6 +16,8 @@ Pydantic AI is still pre-version 1, so breaking changes will occur, however:

See [#2440](https://github.com/pydantic/pydantic-ai/pull/2440) - The `next` method was removed from the `Graph` class. Use `async with graph.iter(...) as run: run.next()` instead.

See [#2443](https://github.com/pydantic/pydantic-ai/pull/2443) - The `data` property was removed from the `FinalResult` class. Use `output` instead.

### v0.5.0 (2025-08-04)

See [#2388](https://github.com/pydantic/pydantic-ai/pull/2388) - The `source` field of an `EvaluationResult` is now of type `EvaluatorSpec` rather than the actual source `Evaluator` instance, to help with serialization/deserialization.
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5 changes: 0 additions & 5 deletions pydantic_ai_slim/pydantic_ai/result.py
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Expand Up @@ -507,11 +507,6 @@ class FinalResult(Generic[OutputDataT]):
tool_call_id: str | None = None
"""ID of the tool call that produced the final output; `None` if the output came from unstructured text content."""

@property
@deprecated('`data` is deprecated, use `output` instead.')
def data(self) -> OutputDataT:
return self.output

__repr__ = _utils.dataclasses_no_defaults_repr


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