npm / @langchain/mistralai

@langchain/mistralai

What changed in @langchain/mistralai 0.3 to 1, from its official release notes, upgrade guides and advisories. Sources checked 2026-10-19.

1 security4 new APIs and options5 fixes and other

See which of these apply to your code, ranked, in your agent:

npx @unstale/cli init

@langchain/mistralai 19 changes

Adds native event conversion for streamEvents.
1.2.0release notes
Adds standard schema support for structured output with Mistral AI.
1.0.7release notes
Package versions are stamped into runnable trace metadata at construction time, making version information available in LangSmith traces.
1.0.6release notes
Adds the useFim option to toggle between FIM and chat APIs.
1.0.2release notes

Chat completions now populate response_metadata.model, which was previously missing.
1.1.0release notes
Chat model invoke and stream operations now properly check and propagate abort signals, enabling cancellation and allowing fallback chains to proceed when a runnable is aborted.
1.0.4release notes
Fixed streaming issues for @langchain/mistralai.
1.0.3release notes
Fixed type compatibility issues for @langchain/mistralai.
1.0.3release notes
Fixed compatibility with moduleResolution set to "node".
1.0.1release notes