Lanzado el 6 de febrero de 2026
Changes since langchain==1.2.8 fix(langchain): normalize raw schemas in middleware responseformat override feat: support state updates from `wrapmodelcall` with command(s) test(langchain): types in `testtoolcalllimit` and `testmodelretry` fix(langchain): bump min
Changes since langchain==1.2.8 fix(langchain): normalize raw schemas in middleware responseformat override feat: support state updates from `wrapmodelcall` with command(s) test(langchain): types in `testtoolcalllimit` and `testmodelretry` fix(langchain): bump min core version and improve approximate token counting release: langchain 1.2.9 feat: threading context through `create_agent` flows + middleware chore: add `make type` target revert: "chore: add typing target in `Makefile`" chore: add typing target in `Makefile` revert: use usage metadata scaling in SummarizationMiddleware default token counter fix(langchain): use usage metadata scaling in SummarizationMiddleware default token counter fix(langchain): avoid UnboundLocalError when no AIMessage exists chore: enrich `pyproject.toml` files
Genera un resumen en lenguaje claro de los cambios de este release, pensado para desarrolladores.