What's Changed

• anthropic[patch]: Fix passing streamed tool calls back to anthropic by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6199
• anthropic[patch]: Release 0.2.9 by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6202
• standard-tests[minor]: Add test for streaming token counts with tools by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6044
• standard-tests[minor]: Add a test for more complex schemas by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6112
• docs[patch]: Fix bad api ref link by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6208
• docs[patch]: Update chat model feature list table by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6209
• google-common[minor]: Fix streaming tool calls by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6204
• docs[patch]: Fix ChatModelTabs openaiParams typo by @koyokr in https://github.com/langchain-ai/langchainjs/pull/6205
• partners[patch]: Comment out console logs in test files by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6210
• cloudflare[minor]: Adds Cloudflare D1 checkpointer by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6212
• cloudflare[patch]: Release 0.0.7 by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6213
• groq[minor]: Implement streaming tool calls by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6203
• standard-tests[patch]: Add descriptive comments/docstrings to standard tests by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6211
• google-common[minor]: Add tool choice param by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6195
• google[patch]: Release 0.0.21/22 by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6219
• mistralai[patch]: Translate tool call ids to mistral compat format by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6217
• mistralai[patch]: Release 0.0.27 by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6220
• infra[patch]: Run yarn install by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6221
• docs[patch]: Update tool calling concepts and how tos by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6218
• google[patch]: Set min core version for vertex and gauth by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6222
• docs[patch]: Fixes Incorrect Path for Convex Utils by @vynxc in https://github.com/langchain-ai/langchainjs/pull/6216
• community[patch]: Run all standard tests for bedrock by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6228
• mistralai[patch]: Fix flaky tool calling test by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6229
• community[patch], langchan[patch]: Bump puppeteer dep by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6230
• anthropic[patch]: add vertex and bedrock support, streamResponseChunk… by @tofuliang in https://github.com/langchain-ai/langchainjs/pull/6206
• anthropic[patch]: 0.2.10 by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6231
• aws[patch]: Release 0.0.6 by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6233
• infra[patch]: Update yarn.lock by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6234
• core[patch]: Parse text delta content fields in StringOutputParser by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6251
• fix: fix mapStoredMessageToChatMessage to check on generic role when creating ChatMessage by @karlomedallo in https://github.com/langchain-ai/langchainjs/pull/6247
• docs[minor]: Simplify example code by getting rid of unnecessary else/if statements by @kostasx in https://github.com/langchain-ai/langchainjs/pull/6232
• community[patch]: fix TypeError using the client created with xata init by @kappita in https://github.com/langchain-ai/langchainjs/pull/6241
• community[patch]: chore: update chat iflytek xinghuo chatmodel version by @aixgeek in https://github.com/langchain-ai/langchainjs/pull/6223
• anthropic[patch]: Proper handling of multi tool result messages by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6257
• anthropic[patch]: Release 0.2.11 by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6261
• docs[patch]: Support hidden docs cells and TS validation in notebooks by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6259
• community[patch]: avoid shouldIgnore on folders for GithubRepoLoader by @DipFlip in https://github.com/langchain-ai/langchainjs/pull/6255
• anthropic[patch]: Refactor merging tool results by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6262
• standard-tests[minor]: Add tests for parallel tool calls by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6258
• docs[patch]: Fix Code in Managing Conversation History by @sarangan12 in https://github.com/langchain-ai/langchainjs/pull/6252
• ci[patch]: Adds CI action validating new notebooks by @jacoblee93 in https://github.com/langchain-ai/langchainjs/pull/6263
• google-common[patch]: Merge adjacent function results in google common by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6264
• anthropic[patch]: Fix issues with duplicate streaming tokens by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6265
• docs[patch]: Replace StructuredTool with tool func in docs by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6267
• community[patch]: Fix handling parallel tool call results in bedrock by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6266
• community[patch]: Release 0.2.21 by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6269
• langchain[patch],community[patch]: Allow any puppeteer version in peer deps by @bracesproul in https://github.com/langchain-ai/langchainjs/pull/6274

New Contributors

• @koyokr made their first contribution in https://github.com/langchain-ai/langchainjs/pull/6205
• @vynxc made their first contribution in https://github.com/langchain-ai/langchainjs/pull/6216
• @karlomedallo made their first contribution in https://github.com/langchain-ai/langchainjs/pull/6247
• @kappita made their first contribution in https://github.com/langchain-ai/langchainjs/pull/6241
• @DipFlip made their first contribution in https://github.com/langchain-ai/langchainjs/pull/6255

Full Changelog: https://github.com/langchain-ai/langchainjs/compare/0.2.11...0.2.12