What's Changed

• experimental[patch]: Release 0.0.52 by @baskaryan in https://github.com/langchain-ai/langchain/pull/17763
• Cache calls to create_model for get_input_schema and get_output_schema by @nfcampos in https://github.com/langchain-ai/langchain/pull/17755
• Docs: Add custom chat model documenation by @eyurtsev in https://github.com/langchain-ai/langchain/pull/17595
• community: Fix AstraDBCache docstrings by @cbornet in https://github.com/langchain-ai/langchain/pull/17802
• Docs: Update contributing documentation by @eyurtsev in https://github.com/langchain-ai/langchain/pull/17557
• community: Add PolygonTickerNews Tool by @virattt in https://github.com/langchain-ai/langchain/pull/17808
• docs: Add typehints in both signature and description of API docs by @cbornet in https://github.com/langchain-ai/langchain/pull/17815
• community: Add SparkLLM Text Embedding Model and SparkLLM introduction by @liugddx in https://github.com/langchain-ai/langchain/pull/17573
• community: Add SparkLLM to community by @liugddx in https://github.com/langchain-ai/langchain/pull/17702
• docs: fix api docs search by @efriis in https://github.com/langchain-ai/langchain/pull/17820
• Add JSON representation of runnable graph to serialized representation by @nfcampos in https://github.com/langchain-ai/langchain/pull/17745
• astradb[patch]: relaxed httpx version constraint by @efriis in https://github.com/langchain-ai/langchain/pull/17826
• core[patch]: Release 0.1.25 by @baskaryan in https://github.com/langchain-ai/langchain/pull/17833
• partners/astradb: Add AstraDBStore to langchain-astradb package by @cbornet in https://github.com/langchain-ai/langchain/pull/17789
• partners/openai: fix depracation errors of pydantic's .dict() function (reopen #16629) by @SavvasMohito in https://github.com/langchain-ai/langchain/pull/17404
• partners/astradb: Use single file instead of module for AstraDBVectorStore by @cbornet in https://github.com/langchain-ai/langchain/pull/17644
• docs: remove stale redirects by @efriis in https://github.com/langchain-ai/langchain/pull/17831
• 👥 Update LangChain people data by @jacoblee93 in https://github.com/langchain-ai/langchain/pull/17743
• community[patch]: typo in doc-string for kdbai vectorstore by @nbyrneKX in https://github.com/langchain-ai/langchain/pull/17811
• community[patch]: Add AstraDBLoader docstring by @cbornet in https://github.com/langchain-ai/langchain/pull/17873
• community[patch]: Graceful handling of redis errors in RedisCache and AsyncRedisCache by @snsten in https://github.com/langchain-ai/langchain/pull/17171
• docs: API Reference builder bug fix by @leo-gan in https://github.com/langchain-ai/langchain/pull/17890
• docs: update sparkllm intro doc by @liugddx in https://github.com/langchain-ai/langchain/pull/17848
• community: Added add_images method to SingleStoreDB vector store by @volodymyr-memsql in https://github.com/langchain-ai/langchain/pull/17871
• docs: minor grammatical correction. by @qqubb in https://github.com/langchain-ai/langchain/pull/17724
• Docs: Fix typo by @gianlucagiudice in https://github.com/langchain-ai/langchain/pull/17733
• core: fix .bind when used with RunnableLambda async methods by @ccurme in https://github.com/langchain-ai/langchain/pull/17739
• community[patch]: add missing chunk parameter for _stream/_astream by @mackong in https://github.com/langchain-ai/langchain/pull/17807
• community: Allow override of 'fetch_schema_from_transport' in the GraphQL tool by @ztoliver in https://github.com/langchain-ai/langchain/pull/17649
• community: Improved deeplake.py init documentation by @nvoxland-al in https://github.com/langchain-ai/langchain/pull/17549
• docs: Fix URL typo in tigris.ipynb by @Speuce in https://github.com/langchain-ai/langchain/pull/17894
• community: add possibility to search by vector in OpenSearchVectorSearch by @karimassi in https://github.com/langchain-ai/langchain/pull/17878
• added SCANN index in default search params by @rgupta2508 in https://github.com/langchain-ai/langchain/pull/17889
• partners/astradb: Update langchain-astradb README with AstraDBStore by @cbornet in https://github.com/langchain-ai/langchain/pull/17864
• docs: Change module import path for SQLDatabase in the documentation by @sepiatone in https://github.com/langchain-ai/langchain/pull/17874
• core: modules descriptions by @leo-gan in https://github.com/langchain-ai/langchain/pull/17844
• community: AstraDB VectorStore docstring by @cbornet in https://github.com/langchain-ai/langchain/pull/17834
• docs: added community modules descriptions by @leo-gan in https://github.com/langchain-ai/langchain/pull/17827
• fix a small typo by @eon01 in https://github.com/langchain-ai/langchain/pull/17859
• [community][embeddings] infinity embedding local option by @michaelfeil in https://github.com/langchain-ai/langchain/pull/17671
• community: Bug Fix, in Neo4j VectorStore when having multiple indexes the sort is not working and the store that returned is random by @ehude in https://github.com/langchain-ai/langchain/pull/17396
• docs: fix api build by @baskaryan in https://github.com/langchain-ai/langchain/pull/17898
• 👥 Update LangChain people data by @jacoblee93 in https://github.com/langchain-ai/langchain/pull/17900
• community: Add docstring to AstraDBStore by @cbornet in https://github.com/langchain-ai/langchain/pull/17793
• : Add tidb loader support by @IANTHEREAL in https://github.com/langchain-ai/langchain/pull/17788
• community: add helpful comments to sparkllm.py by @vsxd in https://github.com/langchain-ai/langchain/pull/17774
• community: Add missing async_astra_db_client param to AstraDBChatMessageHistory by @cbornet in https://github.com/langchain-ai/langchain/pull/17742
• docs: Update Links to resources in the GraphDB QA Chain documentation by @nelly-hateva in https://github.com/langchain-ai/langchain/pull/17720
• partners/astradb: Fix AstraDBVectorStore docstring by @cbornet in https://github.com/langchain-ai/langchain/pull/17706
• Stomp by @hinthornw in https://github.com/langchain-ai/langchain/pull/17710
• community: Added more functions in NetworkxEntityGraph class by @raunakshrivastava7 in https://github.com/langchain-ai/langchain/pull/17624
• Return PK in similarity search Document by @hasansustcse13 in https://github.com/langchain-ai/langchain/pull/17561
• docs sorting Examples using ... section by @leo-gan in https://github.com/langchain-ai/langchain/pull/17588
• Redirect the expression language guides by @hinthornw in https://github.com/langchain-ai/langchain/pull/17914
• partner: Add groq partner integration and chat model by @gradenr in https://github.com/langchain-ai/langchain/pull/17856
• pinecone[patch], docs: PineconeVectorStore, release 0.0.3 by @efriis in https://github.com/langchain-ai/langchain/pull/17896
• community: Bugfix - correct Ollama API path to avoid HTTP 307 by @13rac1 in https://github.com/langchain-ai/langchain/pull/17895
• langchain_openai[patch]: fix typos in langchain_openai by @polym in https://github.com/langchain-ai/langchain/pull/17923
• community: use NeuralDB object to initialize NeuralDBVectorStore by @kartikTAI in https://github.com/langchain-ai/langchain/pull/17272
• pinecone[patch]: integration test debug by @efriis in https://github.com/langchain-ai/langchain/pull/17960
• community[patch]: compatibility with SQLAlchemy 1.4.x by @Davidkloving in https://github.com/langchain-ai/langchain/pull/17954
• docs: update IBM watsonx.ai docs by @MateuszOssGit in https://github.com/langchain-ai/langchain/pull/17932
• Remove subscript for Result type object by @Abe410 in https://github.com/langchain-ai/langchain/pull/17823
• partners/astradb: Support langchain-astradb AstraDBVectorStore in self-query retriever by @cbornet in https://github.com/langchain-ai/langchain/pull/17728
• templates: Update README.md - Fixing a typo by @PankajMoolrajani in https://github.com/langchain-ai/langchain/pull/17689
• docs:Rerun the Tongyi Qwen model to fix incorrect responses. by @deanbear in https://github.com/langchain-ai/langchain/pull/17693
• community[patch]: fix lint by @baskaryan in https://github.com/langchain-ai/langchain/pull/17984
• docs: logo by @efriis in https://github.com/langchain-ai/langchain/pull/17972
• docs: partner package list by @leo-gan in https://github.com/langchain-ai/langchain/pull/17978
• core[minor], openai[minor], langchain[patch]: output format on openai by @baskaryan in https://github.com/langchain-ai/langchain/pull/17302
• langchain[minor]: openai tools structured_output_chain by @baskaryan in https://github.com/langchain-ai/langchain/pull/17296
• partner:robocorpai dosctrings by @leo-gan in https://github.com/langchain-ai/langchain/pull/17968
• docs: update schema imports to core by @efriis in https://github.com/langchain-ai/langchain/pull/17885
• docs: Update Google Provider documentation by @averikitsch in https://github.com/langchain-ai/langchain/pull/17970
• docs: Update Azure Search vector store notebook by @mattgotteiner in https://github.com/langchain-ai/langchain/pull/17901
• community: add Kinetica LLM wrapper by @chadj2 in https://github.com/langchain-ai/langchain/pull/17879
• Added langchainhub install and fixed typo by @standuprey in https://github.com/langchain-ai/langchain/pull/17985
• community[patch]: callback before yield for _stream/_astream by @mackong in https://github.com/langchain-ai/langchain/pull/17907
• infra: ci end check by @efriis in https://github.com/langchain-ai/langchain/pull/17986
• Anthropic README updates by @jorgevee in https://github.com/langchain-ai/langchain/pull/17684
• infra: ci end check, consolidation by @efriis in https://github.com/langchain-ai/langchain/pull/17987
• Update quickstart.mdx by @Issac-Lopez in https://github.com/langchain-ai/langchain/pull/17659
• Skip OpenAIWhisperParser extremely small audio chunks to avoid api error by @leodiegues in https://github.com/langchain-ai/langchain/pull/11450
• feat(graph_sparql_qa): return formatted SPARQL query on demand by @reidfalconer in https://github.com/langchain-ai/langchain/pull/11263
• core[patch]: Release 0.1.26 by @baskaryan in https://github.com/langchain-ai/langchain/pull/17990
• infra: ci failure job by @efriis in https://github.com/langchain-ai/langchain/pull/17989
• infra: skip codespell ambr by @efriis in https://github.com/langchain-ai/langchain/pull/17992
• openai[patch]: Release 0.0.7 by @baskaryan in https://github.com/langchain-ai/langchain/pull/17993
• community[patch]: Release 0.0.22 by @baskaryan in https://github.com/langchain-ai/langchain/pull/17994
• lanchain[patch]: Release 0.1.9 by @baskaryan in https://github.com/langchain-ai/langchain/pull/17999

New Contributors

• @SavvasMohito made their first contribution in https://github.com/langchain-ai/langchain/pull/17404
• @nbyrneKX made their first contribution in https://github.com/langchain-ai/langchain/pull/17811
• @snsten made their first contribution in https://github.com/langchain-ai/langchain/pull/17171
• @qqubb made their first contribution in https://github.com/langchain-ai/langchain/pull/17724
• @gianlucagiudice made their first contribution in https://github.com/langchain-ai/langchain/pull/17733
• @mackong made their first contribution in https://github.com/langchain-ai/langchain/pull/17807
• @nvoxland-al made their first contribution in https://github.com/langchain-ai/langchain/pull/17549
• @rgupta2508 made their first contribution in https://github.com/langchain-ai/langchain/pull/17889
• @sepiatone made their first contribution in https://github.com/langchain-ai/langchain/pull/17874
• @eon01 made their first contribution in https://github.com/langchain-ai/langchain/pull/17859
• @ehude made their first contribution in https://github.com/langchain-ai/langchain/pull/17396
• @hasansustcse13 made their first contribution in https://github.com/langchain-ai/langchain/pull/17561
• @gradenr made their first contribution in https://github.com/langchain-ai/langchain/pull/17856
• @13rac1 made their first contribution in https://github.com/langchain-ai/langchain/pull/17895
• @polym made their first contribution in https://github.com/langchain-ai/langchain/pull/17923
• @kartikTAI made their first contribution in https://github.com/langchain-ai/langchain/pull/17272
• @Davidkloving made their first contribution in https://github.com/langchain-ai/langchain/pull/17954
• @Abe410 made their first contribution in https://github.com/langchain-ai/langchain/pull/17823
• @PankajMoolrajani made their first contribution in https://github.com/langchain-ai/langchain/pull/17689
• @deanbear made their first contribution in https://github.com/langchain-ai/langchain/pull/17693
• @mattgotteiner made their first contribution in https://github.com/langchain-ai/langchain/pull/17901
• @chadj2 made their first contribution in https://github.com/langchain-ai/langchain/pull/17879
• @standuprey made their first contribution in https://github.com/langchain-ai/langchain/pull/17985
• @jorgevee made their first contribution in https://github.com/langchain-ai/langchain/pull/17684
• @Issac-Lopez made their first contribution in https://github.com/langchain-ai/langchain/pull/17659
• @leodiegues made their first contribution in https://github.com/langchain-ai/langchain/pull/11450
• @reidfalconer made their first contribution in https://github.com/langchain-ai/langchain/pull/11263

Full Changelog: https://github.com/langchain-ai/langchain/compare/v0.1.8...v0.1.9