What's Changed
* Add connection args for pgvector vector store by aubinmazet in https://github.com/langchain-ai/langchain/pull/11930
* Fix Typo in CONTRIBUTING.md file by DeepanshuProgrammer in https://github.com/langchain-ai/langchain/pull/12145
* 10634: Added the capability to inject boto3 client in SagemakerEndpointEmbeddings by vikramshitole in https://github.com/langchain-ai/langchain/pull/12146
* Fixed hardcoded "vector" and replaced with vector_query_field variable by shilongdai in https://github.com/langchain-ai/langchain/pull/12126
* Create CODE_OF_CONDUCT.md by PentesterPriyanshu in https://github.com/langchain-ai/langchain/pull/12105
* Baichuan & Hunyuan set default api_base by maiqingqiang in https://github.com/langchain-ai/langchain/pull/12059
* Update security.md by eyurtsev in https://github.com/langchain-ai/langchain/pull/11942
* Fix typo in jsonformer_experimental.ipynb by eltociear in https://github.com/langchain-ai/langchain/pull/12099
* Add COBOL parser and splitter by ehartford in https://github.com/langchain-ai/langchain/pull/11674
* Remove GetLocal, PutLocal by nfcampos in https://github.com/langchain-ai/langchain/pull/12133
* Update extraction.py by lu-wo in https://github.com/langchain-ai/langchain/pull/12207
* feat: Add Client Info to available Google Cloud Clients by holtskinner in https://github.com/langchain-ai/langchain/pull/12168
* Docs: add LCEL to chains/foundational/router by baskaryan in https://github.com/langchain-ai/langchain/pull/12211
* Docs: Add LCEL to chains/foundational/transform by baskaryan in https://github.com/langchain-ai/langchain/pull/12212
* Docs: Add LCEL to chains/foundational/llm by baskaryan in https://github.com/langchain-ai/langchain/pull/12213
* separate compile integration tests by baskaryan in https://github.com/langchain-ai/langchain/pull/12171
* fix note callout by baskaryan in https://github.com/langchain-ai/langchain/pull/12214
* Fix typo in stuff_prompt's system_template by johnnyoshika in https://github.com/langchain-ai/langchain/pull/12063
* docstrings update by leo-gan in https://github.com/langchain-ai/langchain/pull/12093
* Expose configuration options in GraphCypherQAChain by sudranga in https://github.com/langchain-ai/langchain/pull/12159
* Improvements to llm/deepinfra by ichernev in https://github.com/langchain-ai/langchain/pull/10846
* Fix Anthropic Functions ainvoke by efriis in https://github.com/langchain-ai/langchain/pull/12215
* Fix flexible dimension and doc for DingoDB by HeChangHaoGary in https://github.com/langchain-ai/langchain/pull/12187
* updated `integrations/providers/microsoft` by leo-gan in https://github.com/langchain-ai/langchain/pull/12177
* fix vertexai codey models by northdpole in https://github.com/langchain-ai/langchain/pull/12173
* Finetuned OpenAI models cost calculation 11715 by nirkopler in https://github.com/langchain-ai/langchain/pull/12190
* Update deprecation by hinthornw in https://github.com/langchain-ai/langchain/pull/12178
* Expose handle_event and ahandle_events as public API by eyurtsev in https://github.com/langchain-ai/langchain/pull/12181
* [fix] create redis vector index before adding docs, add prefix to doc… by a9raag in https://github.com/langchain-ai/langchain/pull/11257
* Bagatur/js ts nav by baskaryan in https://github.com/langchain-ai/langchain/pull/12219
* mv old integration docs by baskaryan in https://github.com/langchain-ai/langchain/pull/12217
* fix typo by DayuanJiang in https://github.com/langchain-ai/langchain/pull/12204
* Added GigaChat chat model support by Mikelarg in https://github.com/langchain-ai/langchain/pull/12201
* Fix code block in runnable doc by eyurtsev in https://github.com/langchain-ai/langchain/pull/12221
* Add type to Generation and sub-classes, handle root validator by eyurtsev in https://github.com/langchain-ai/langchain/pull/12220
* add experimental test release gha by baskaryan in https://github.com/langchain-ai/langchain/pull/12229
* bump 322 and 34 by baskaryan in https://github.com/langchain-ai/langchain/pull/12228
New Contributors
* aubinmazet made their first contribution in https://github.com/langchain-ai/langchain/pull/11930
* DeepanshuProgrammer made their first contribution in https://github.com/langchain-ai/langchain/pull/12145
* shilongdai made their first contribution in https://github.com/langchain-ai/langchain/pull/12126
* PentesterPriyanshu made their first contribution in https://github.com/langchain-ai/langchain/pull/12105
* ehartford made their first contribution in https://github.com/langchain-ai/langchain/pull/11674
* lu-wo made their first contribution in https://github.com/langchain-ai/langchain/pull/12207
* johnnyoshika made their first contribution in https://github.com/langchain-ai/langchain/pull/12063
* northdpole made their first contribution in https://github.com/langchain-ai/langchain/pull/12173
* nirkopler made their first contribution in https://github.com/langchain-ai/langchain/pull/12190
* a9raag made their first contribution in https://github.com/langchain-ai/langchain/pull/11257
* Mikelarg made their first contribution in https://github.com/langchain-ai/langchain/pull/12201
**Full Changelog**: https://github.com/langchain-ai/langchain/compare/v0.0.321...v0.0.322