What's Changed

• feat: Add Astra DB Vector Store Integration by @mfortman11 in https://github.com/langchain-ai/langchainjs/pull/3732
• Add AzureOpenAI and AzureChatOpenAI classes for Python interop by @dqbd in https://github.com/langchain-ai/langchainjs/pull/3625
• integrations[patch]: Bump version by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/3771
• community[patch]: Release 0.0.11 by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/3772
• Fix lint warnings by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/3788
• docs[patch]: Fix structured agent output example by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/3770
• core[minor]: Nc/dec26/runnable stream by @nfcampos in https://github.com/langchain-ai/langchainjs/pull/3792
• Implement optional message placeholder in js by @nfcampos in https://github.com/langchain-ai/langchainjs/pull/3795
• RunnablePassthrough.pick() by @nfcampos in https://github.com/langchain-ai/langchainjs/pull/3798
• core[patch]: Add LanguageModelLike type by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/3799
• template[patch]: Add lc_secrets to template code by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/3789
• Implement stream for runnable lambda by @nfcampos in https://github.com/langchain-ai/langchainjs/pull/3801
• docs[patch]: typo in Azure OpenAI integration by @rikimbili in https://github.com/langchain-ai/langchainjs/pull/3803
• core[patch]: Fix optional message placeholder use in a chat prompt template by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/3805
• Add optional name for runnable sequence by @nfcampos in https://github.com/langchain-ai/langchainjs/pull/3806
• core[patch]: Fix runnable with message history for async histories by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/3808
• Add .pick and .assign methods to Runnable by @nfcampos in https://github.com/langchain-ai/langchainjs/pull/3807
• langchain[minor]: Adds create chat retrieval chain method by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/3800
• langchain[minor]: Add stuff docs chain by @nfcampos in https://github.com/langchain-ai/langchainjs/pull/3809
• docs[patch]: Fix more core imports by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/3817
• fix: use @gomoment/sdk-core instead of @gomoment/sdk for edge server integrations (#3784) by @hideokamoto in https://github.com/langchain-ai/langchainjs/pull/3813
• core[minor]: Streaming List Parsers by @nfcampos in https://github.com/langchain-ai/langchainjs/pull/3819
• core[minor]: Add JSON parser by @nfcampos in https://github.com/langchain-ai/langchainjs/pull/3821
• langchain[minor]: Adds new agent create methods and docs by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/3802
• core[patch]: Release 0.1.5 by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/3828
• all[patch]: Bump deps by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/3829
• langchain[patch]: Release 0.0.213 by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/3830

New Contributors

• @mfortman11 made their first contribution in https://github.com/langchain-ai/langchainjs/pull/3732
• @rikimbili made their first contribution in https://github.com/langchain-ai/langchainjs/pull/3803
• @hideokamoto made their first contribution in https://github.com/langchain-ai/langchainjs/pull/3813

Full Changelog: https://github.com/langchain-ai/langchainjs/compare/0.0.212...0.0.213