What's Changed

• docs[patch]: Update intro diagram by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6071
• docs[patch]: Adds custom artifacts docs for tools by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6086
• docs[patch]: Adds docs for dispatching custom events by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6088
• core[minor]: Add RemoveMessage class by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6089
• infra[patch]: Set yarn version to 3.5.1 by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6090
• docs[patch]: Add custom callback event guide to index page by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6092
• docs[patch]: Update custom tool use in docs by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6091
• docs[patch],community[minor]: Update AssemblyAI SDK, add user agent, update AssemblyAI URLs by @Swimburger in https://github.com/langchain-ai/langchainjs/pull/6084
• community[patch]: fix PrismaVectorStore IN operator by @shan-mx in https://github.com/langchain-ai/langchainjs/pull/6085
• docs[patch]: Update Gen UI docs by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6093
• docs[patch]: Adds tool artifacts guide by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6094
• docs[patch]: Adds docs on passing tool results to a model by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6095
• docs[patch]: Update tool runtime docs by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6097
• docs[patch]: Adds tool stream events and error handling guides by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6098
• openai-experimental[patch]: Adds experimental raw response field to OpenAI chat models by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6087
• openai[patch]: Adds OpenAI system_fingerprint to response_metadata by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6107
• openai[patch]: Release 0.2.3 by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6108
• core[patch]: Allow runnable tools to take single string/ToolCall inputs by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6096
• google-genai[patch]: Fix removing additional properties from schema by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6109
• google-common[patch]: Release 0.0.23 by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6113
• google-common[patch]: Fix removing all instances of additionalProperties by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6110
• google[patch]: Release(common) 0.0.21, Release 0.0.20 by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6114
• docs[patch]: Add note on genai docs for invalid tool schema by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6116
• docs[patch]: Fix import path in typesense doc by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6117
• core[minor]: Standardize tool choice by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6111
• core[patch]: JSDoc nit unsupporting to unsupported by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6120
• partners[minor]: Throw error if tool_choice is supplied but not supported by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6119
• core[patch]: Improve console.log format for messages by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6121
• anthropic[patch]: Populate message id by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6122
• docs[minor]: Runnable tool docs by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6030
• docs[patch]: Update concepts with more tool content, fix titles by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6123
• core[patch]: Release 0.2.17 by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6124
• aws[patch]: Release 0.0.3 by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6125
• anthropic[patch]: Release 0.2.5 by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6126
• anthropic[patch]: Remove log by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6127
• anthropic[patch]: Release 0.2.6 by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6128
• openai[patch]: Release 0.2.4 by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6129
• groq[patch]: Bump minimum Groq deps by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6130
• groq[patch]: Release 0.0.15 by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6131
• docs[patch]: Update tool concepts docs by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6134
• docs[minor]: Add tool choice how to guide by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6118
• openai[patch]: Adds deprecation warning when passing chat models into OpenAI LLM constructors by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6136
• docs[patch]: Update wording of tool choice table by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6135
• aws[patch]: Fix error when processing empty string chunk conent by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6137
• scripts[patch]: Release 0.0.15 by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6141
• aws[major]: Add bedrock embeddings to aws package by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6139
• aws[major]: Added retrievers to aws package by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6140
• aws[patch]: Release 0.0.4 by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6143
• docs[patch]: Typo fixed in Upstash Ratelimit Callback by @Ibkdir in https://github.com/langchain-ai/langchainjs/pull/6145
• docs[patch]: remove duplicate content from sql QA tutorial page by @Sachin-chaurasiya in https://github.com/langchain-ai/langchainjs/pull/6150
• community[patch]: Unpin langchain dep in community by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6152
• docs[minor]: Replace deprecated code examples with LCEL & AgentExecutor by @Srijan-D in https://github.com/langchain-ai/langchainjs/pull/6149
• community[patch]: Fix typo in modelName options of BaiduQianfanEmbeddings by @DOTime in https://github.com/langchain-ai/langchainjs/pull/5970
• community[patch]: Release 0.2.20 by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6153
• openai[minor]: Allow for multiple images to be returned with dalle by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6154
• core[patch]: Fix double streaming issue when streamEvents is called directly on chat models/LLMs by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6155
• ollama[major]: Integration package by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/5990
• ollama[patch]: Release 0.0.1 by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6156
• ollama[patch]: Fix min core version by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6163
• google-common[patch]: Add streaming constructor param by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6165
• core[minor]: Use run tree as stored value in async local storage by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/5992
• core[patch]: Release 0.2.18 by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6166
• pinecone[patch]: Bump pinecone dep to latest by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6168
• pinecone[patch]: Fix delete test by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6170
• pinecone[patch]: Release 0.0.8 by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6172
• build[patch]: Add way to escape side effects within an entrypoint by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6174
• docs[patch]: Hide OllamaFunctions from sidebar by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6176
• docs[patch]: Use llama3 in example docs by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6180
• docs[patch]: Update PineconeStore creation to include namespace parameter by @Sachin-chaurasiya in https://github.com/langchain-ai/langchainjs/pull/6169
• aws[patch]: Fix fails when calling multiple tools simultaneously by @tinque in https://github.com/langchain-ai/langchainjs/pull/6175
• anthropic[patch]: Handle non text llm tokens by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6179
• aws[patch]: Release 0.0.5 by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6181
• anthropic[patch]: Release 0.2.7 by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6182
• docs[minor]: Add multimodal section in Google VertexAI docs by @tanyaasharma in https://github.com/langchain-ai/langchainjs/pull/6177
• anthropic[patch]: ensure content exists when parsing tool tokens by @snlamm in https://github.com/langchain-ai/langchainjs/pull/6183
• anthropic[patch]: Release 0.2.8 by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6184
• genai[patch],standard-tests[patch]: Fix flaky tests/deprecated model by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6185
• core[minor]: Add FakeVectorStore to core testing utils by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6186
• docs: Update ChatModelTabs defaults by @baskaryan in https://github.com/langchain-ai/langchainjs/pull/6187
• docs[patch]: Fix ChatModelTabs openai model typo by @moonrailgun in https://github.com/langchain-ai/langchainjs/pull/6191
• core[patch]: Use console.warn for swallowed errors in a callback handler by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6192
• openai[patch]: Make legacy OpenAI path respect a passed model param by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6193
• docs[patch]: Fix broken link by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6194
• bedrock[minor]: Allow knowledge bases to use filters and searchType by @jl4nz in https://github.com/langchain-ai/langchainjs/pull/6189
• docs[patch]: Adds callback backgrounding env var in more places by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6196
• openai[patch]: Release 0.2.5 by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6198
• ci[minor]: Start building on windows by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6188
• langchain[minor]: Generic chat models by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6171
• docs[patch]: List node v22 as supported version in root readme by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6200

New Contributors

• @shan-mx made their first contribution in https://github.com/langchain-ai/langchainjs/pull/6085
• @Ibkdir made their first contribution in https://github.com/langchain-ai/langchainjs/pull/6145
• @Sachin-chaurasiya made their first contribution in https://github.com/langchain-ai/langchainjs/pull/6150
• @Srijan-D made their first contribution in https://github.com/langchain-ai/langchainjs/pull/6149
• @DOTime made their first contribution in https://github.com/langchain-ai/langchainjs/pull/5970
• @tinque made their first contribution in https://github.com/langchain-ai/langchainjs/pull/6175
• @snlamm made their first contribution in https://github.com/langchain-ai/langchainjs/pull/6183
• @moonrailgun made their first contribution in https://github.com/langchain-ai/langchainjs/pull/6191

Full Changelog: https://github.com/langchain-ai/langchainjs/compare/0.2.10...0.2.11