langchain-ai/langgraph · error · LangGraphDeprecatedSinceV10

`config_schema` is deprecated. Use `get_context_jsonschema`

Error message

`config_schema` is deprecated. Use `get_context_jsonschema` for the relevant schema instead.

What it means

Error "`config_schema` is deprecated. Use `get_context_jsonschema` for the relevant schema instead." thrown in langchain-ai/langgraph.

Source

Thrown at libs/langgraph/langgraph/pregel/main.py:955

        validate_graph(
            self.nodes,
            {k: v for k, v in self.channels.items() if isinstance(v, BaseChannel)},
            {k: v for k, v in self.channels.items() if not isinstance(v, BaseChannel)},
            self.input_channels,
            self.output_channels,
            self.stream_channels,
            self.interrupt_after_nodes,
            self.interrupt_before_nodes,
        )
        self.trigger_to_nodes = _trigger_to_nodes(self.nodes)
        return self

    @deprecated(
        "`config_schema` is deprecated. Use `get_context_jsonschema` for the relevant schema instead.",
        category=None,
    )
    def config_schema(self, *, include: Sequence[str] | None = None) -> type[BaseModel]:
        warnings.warn(
            "`config_schema` is deprecated. Use `get_context_jsonschema` for the relevant schema instead.",
            category=LangGraphDeprecatedSinceV10,
            stacklevel=2,
        )

        include = include or []
        fields = {
            **(
                {"configurable": (self.context_schema, None)}
                if self.context_schema
                else {}
            ),
            **{
                field_name: (field_type, None)
                for field_name, field_type in get_type_hints(RunnableConfig).items()
                if field_name in [i for i in include if i != "configurable"]
            },
        }

View on GitHub (pinned to 38031739e5)

When it happens

Trigger: Thrown at libs/langgraph/langgraph/pregel/main.py:955 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of langchain-ai/langgraph@38031739e5 (2026-08-26). Data as JSON: /api/errors/3c29a4f9d2090d0e. Report an issue: GitHub.