What's Changed

• fix(mongodb): mongodb storage mget must return undefined when key not exist by @rtyshyk in https://github.com/langchain-ai/langchainjs/pull/6445
• chore(mongodb): Release 0.0.6 by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6694
• fix(openai): Fix type import issue by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6695
• feat(openai): baseUrl for DallEAPIWrapper by @wanoo21 in https://github.com/langchain-ai/langchainjs/pull/6685
• chore(openai): Release 0.2.10 by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6697
• community[patch]: Relax webllm peer dep by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6696
• langchain[patch]: Take all required fields into account for OpenAPI chain by @ikalachy in https://github.com/langchain-ai/langchainjs/pull/6700
• docs[minor]: Add state of agents survey to docs announcement bar by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6710
• anthropic[patch]: Fix passing cache control through in messages by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6711
• anthropic[minor]: Allow different tool types to be bound by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6712
• anthropic[patch]: Release 0.2.17 by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6713
• docs[patch]: fix chroma distance function reference link by @spielhoelle in https://github.com/langchain-ai/langchainjs/pull/6714
• fix(core): Pin TypeScript version for now for export test failures, add asyncDispose by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6723
• feat(core,openai): Adds streaming support for OpenAI withStructuredOutput by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6721
• baidu-qianfan[patch]: Fix streaming mode of Qianfan by @stanoswald in https://github.com/langchain-ai/langchainjs/pull/6661
• fix(anthropic): Do not check for apiKey existence when createClient parameters are present by @rxliuli in https://github.com/langchain-ai/langchainjs/pull/6716
• feat(community): Add arcjet integration by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6725
• feat(community): BM25 Keyword Search Retriever by @Mraj23 in https://github.com/langchain-ai/langchainjs/pull/6719
• chore(baidu-qianfan): Release 0.0.4 by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6726
• chore(anthropic): Release 0.2.18 by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6727
• chore(core): Release 0.2.32 by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6728
• chore(community): Release 0.2.33 by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6729
• cloudflare[minor]: use native Cloudflare Workers AI binding by @Cherry in https://github.com/langchain-ai/langchainjs/pull/5287
• docs: Fix typo in chatbot tutorial by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6730
• docs: Update wording in tool choice guide by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6732
• google-common[major]: Media manager by @afirstenberg in https://github.com/langchain-ai/langchainjs/pull/5835
• fix(langchain): Fix local file store traversal issue by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6736
• fix(ci): Fix cf exports test by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6737
• fix(ci): Fix cf-workers export test by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6738
• fix(ci): Fix esbuild tests by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6739
• fix(ci): Fix ci by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6741
• chore(langchain): Release 0.2.19 by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6742

New Contributors

• @rtyshyk made their first contribution in https://github.com/langchain-ai/langchainjs/pull/6445
• @wanoo21 made their first contribution in https://github.com/langchain-ai/langchainjs/pull/6685
• @ikalachy made their first contribution in https://github.com/langchain-ai/langchainjs/pull/6700
• @spielhoelle made their first contribution in https://github.com/langchain-ai/langchainjs/pull/6714
• @stanoswald made their first contribution in https://github.com/langchain-ai/langchainjs/pull/6661
• @Mraj23 made their first contribution in https://github.com/langchain-ai/langchainjs/pull/6719
• @Cherry made their first contribution in https://github.com/langchain-ai/langchainjs/pull/5287

Full Changelog: https://github.com/langchain-ai/langchainjs/compare/0.2.18...0.2.19