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