What's Changed

• core[patch]: Fix stream events and stream log with global backgrounded callbacks, add warning by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/4731
• core[patch]: Release 0.1.45 by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/4732
• mongodb[minor]: MongoDBStore by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/4706
• langchain[minor]: Add missing props to UnstructuredLoader by @angelosc in https://github.com/langchain-ai/langchainjs/pull/4733
• core[minor]: Adds response_metadata field to messages by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/4741
• core[patch]: Merge response metadata fields by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/4743
• core[patch]: Remove log by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/4745
• community[patch]: Make PGVector constructors public to allow for pool reuse by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/4739
• core[patch]: Release 0.1.46 by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/4746
• openai[patch]: Support streaming logprobs by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/4744
• openai[patch]: Release 0.0.20 by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/4747
• community[patch]: Release 0.0.38 by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/4748
• anthropic[patch]: ChatAnthropicTools: fixArrayXMLParameters improvements by @davidfant in https://github.com/langchain-ai/langchainjs/pull/4727
• anthropic[patch]: Make ChatAnthropicTools push full prompt to LangSmith, allow for unforced withStructuredOutput option by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/4750
• anthropic[patch]: Release 0.1.7 by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/4751
• groq[minor]: Bump SDK version by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/4754
• groq[patch]: Release 0.0.4 by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/4756
• scripts[minor]: Add export for checking broken links by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/4757
• scripts[patch]: Release 0.0.7 by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/4760
• scripts[minor]: Make scripts package use its own files by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/4763
• scripts[patch]: Release 0.0.8 by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/4765
• docs[patch]: Add tip to integrations installation docs page by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/4755
• langchain[patch]: Allow return direct for runnable agents created via helper methods by @niklas-lohmann in https://github.com/langchain-ai/langchainjs/pull/4643
• core[patch], langchain[patch]: LangSmith tracing improvements for OutputFixingParser by @davidfant in https://github.com/langchain-ai/langchainjs/pull/4753
• docs[minor]: Add action for checking broken external links by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/4762
• all[patch]: Fix broken external links by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/4766
• community[minor]: feat: Zhipuai embeddings by @lukywong in https://github.com/langchain-ai/langchainjs/pull/4749
• ci[patch]: Fix build command by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/4767
• core[patch]: Release 0.1.47 by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/4768
• community[patch]: bedrock: add model name to identifying params (cache keys) by @jarib in https://github.com/langchain-ai/langchainjs/pull/4758
• community[patch]: Release 0.0.39 by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/4770

New Contributors

• @angelosc made their first contribution in https://github.com/langchain-ai/langchainjs/pull/4733
• @niklas-lohmann made their first contribution in https://github.com/langchain-ai/langchainjs/pull/4643
• @jarib made their first contribution in https://github.com/langchain-ai/langchainjs/pull/4758

Full Changelog: https://github.com/langchain-ai/langchainjs/compare/0.1.27...0.1.28