What's Changed

• Add neo4j provider page by @tomasonjo in https://github.com/langchain-ai/langchain/pull/9941
• addition of cosine distance function for faiss by @JL-B in https://github.com/langchain-ai/langchain/pull/9939
• Add security notices on PAL and CPAL experimental chains. by @obi1kenobi in https://github.com/langchain-ai/langchain/pull/9938
• Add notice about security-sensitive experimental code to experimental README. by @obi1kenobi in https://github.com/langchain-ai/langchain/pull/9936
• Docs: enrich SageMaker endpoint embeddings with docstrings and examples by @corvuslee in https://github.com/langchain-ai/langchain/pull/9924
• fix intro docs by @baskaryan in https://github.com/langchain-ai/langchain/pull/9950
• feat: PromptGuard takes a list of str by @zizhong in https://github.com/langchain-ai/langchain/pull/9948
• Fix import by @hinthornw in https://github.com/langchain-ai/langchain/pull/9945
• Add support for Falkordb (ex-RedisGraph) by @gkorland in https://github.com/langchain-ai/langchain/pull/9821
• docs: Azure AD Authentication for Azure OpenAI by @chutch1122 in https://github.com/langchain-ai/langchain/pull/9951
• Speed up openai tests by @eyurtsev in https://github.com/langchain-ai/langchain/pull/9943
• docs: Fix spelling mistakes in retrievers/get_started.mdx by @nnethercott in https://github.com/langchain-ai/langchain/pull/9920
• docs: Fix spelling mistakes in apis.ipynb by @frgul006 in https://github.com/langchain-ai/langchain/pull/9911
• Bagatur/activeloopai runtime arg by @baskaryan in https://github.com/langchain-ai/langchain/pull/9961
• Added runtime argument to Deep Lake Vector Store initialization by @adolkhan in https://github.com/langchain-ai/langchain/pull/9907
• Fix for similarity_search_with_score by @ofermend in https://github.com/langchain-ai/langchain/pull/9903
• docs: memory types menu by @leo-gan in https://github.com/langchain-ai/langchain/pull/9949
• docs: memory menu by @leo-gan in https://github.com/langchain-ai/langchain/pull/9947
• docs: llms/google vertex AI example update by @leo-gan in https://github.com/langchain-ai/langchain/pull/9960
• fix a link name format to the dependents document by @liaokongVFX in https://github.com/langchain-ai/langchain/pull/9928
• docs: Fix the syntax error, replace "dotenv.load_env()" with "dotenv.… by @tongtie in https://github.com/langchain-ai/langchain/pull/9900
• Fix typo in code_understanding.ipynb by @eltociear in https://github.com/langchain-ai/langchain/pull/9899
• Wfh/async tool by @hinthornw in https://github.com/langchain-ai/langchain/pull/9878
• Use unified Python setup steps for release workflow. by @obi1kenobi in https://github.com/langchain-ai/langchain/pull/9861
• Add LLMonitor Callback Handler Integration - open-source observability & analytics by @hughcrt in https://github.com/langchain-ai/langchain/pull/9870
• don't emit none from eval config by @hinthornw in https://github.com/langchain-ai/langchain/pull/9963
• Fixed regex bug in RetrievalQAWithSources in previous update by @nik1097 in https://github.com/langchain-ai/langchain/pull/9898
• fixed GoogleCloudEnterpriseSearchRetriever returning an empty array by @lkuligin in https://github.com/langchain-ai/langchain/pull/9858
• docs: integrations/tools consistency by @leo-gan in https://github.com/langchain-ai/langchain/pull/9965
• feat(llms): improve ERNIE-Bot chat model by @axiangcoding in https://github.com/langchain-ai/langchain/pull/9833
• Fix add callbacks to spark_sql due to depreciation of callback_manager by @Jurik-001 in https://github.com/langchain-ai/langchain/pull/9831
• Weakref to tracer by @hinthornw in https://github.com/langchain-ai/langchain/pull/9954
• Update SeleniumURLLoader to use webdriver Service in favor of deprecated executable_path parameter by @aaravindan101 in https://github.com/langchain-ai/langchain/pull/9814
• rm mutable defaults by @baskaryan in https://github.com/langchain-ai/langchain/pull/9974
• mv chat history by @baskaryan in https://github.com/langchain-ai/langchain/pull/9725
• fix call _get_keys for custom_evaluator by @Buckler89 in https://github.com/langchain-ai/langchain/pull/9763
• Make document serializable, create utility to create a docstore by @eyurtsev in https://github.com/langchain-ai/langchain/pull/9674
• Extend the FalkorDB QA demo by @gkorland in https://github.com/langchain-ai/langchain/pull/9992
• Add bucket and object key to metadata in S3 loader by @cbornet in https://github.com/langchain-ai/langchain/pull/9317
• mv base cache to schema by @baskaryan in https://github.com/langchain-ai/langchain/pull/9953
• bump 277 by @baskaryan in https://github.com/langchain-ai/langchain/pull/9997

New Contributors

• @JL-B made their first contribution in https://github.com/langchain-ai/langchain/pull/9939
• @corvuslee made their first contribution in https://github.com/langchain-ai/langchain/pull/9924
• @chutch1122 made their first contribution in https://github.com/langchain-ai/langchain/pull/9951
• @nnethercott made their first contribution in https://github.com/langchain-ai/langchain/pull/9920
• @frgul006 made their first contribution in https://github.com/langchain-ai/langchain/pull/9911
• @tongtie made their first contribution in https://github.com/langchain-ai/langchain/pull/9900
• @hughcrt made their first contribution in https://github.com/langchain-ai/langchain/pull/9870
• @cbornet made their first contribution in https://github.com/langchain-ai/langchain/pull/9317

Full Changelog: https://github.com/langchain-ai/langchain/compare/v0.0.276...v0.0.277