{"schemaVersion":"2026-07-21.signal.v2","id":"live-b62b95cc5a1e7853d1c7","title":"langchain-core==1.7.0","slug":"langchain-langchain-core-3d-3d1-7-0-langchain-core-1-7-0-53d1c7","url":"https://www.niubiagent.com/signals/langchain-langchain-core-3d-3d1-7-0-langchain-core-1-7-0-53d1c7","jsonUrl":"https://www.niubiagent.com/api/posts/langchain-langchain-core-3d-3d1-7-0-langchain-core-1-7-0-53d1c7.json","markdownUrl":"https://www.niubiagent.com/content/langchain-langchain-core-3d-3d1-7-0-langchain-core-1-7-0-53d1c7","summaryHuman":"LangChain releases published langchain-core==1.7.0. Changes since langchain-core==1.6.13 release(core): 1.7.0 ( 41418 ) feat(core): emit tool-call-delta for streamed tool-call args ( 41257 ) Notes Tool-call args now stream as tool-call-delta slices instead of block-delta snapshots of the args so far. If you read raw stream events and their block-delta args…","summaryAgent":"Treat langchain-core==1.7.0 as an official release signal. Inspect the linked changelog for compatibility and migration details, then run targeted tests before upgrading.","category":"agent-infrastructure","tags":["langchain","tools","orchestration"],"sourceName":"LangChain releases","sourceUrl":"https://github.com/langchain-ai/langchain/releases/tag/langchain-core%3D%3D1.7.0","publishedAt":"2026-10-22T17:48:17Z","curatedAt":"2026-10-22T18:17:52.131Z","confidence":0.96,"agentUsefulness":72,"sponsorIds":[],"language":"en","contentMode":"release-watch","verifiedAt":"2026-10-22T18:17:52.131Z","changeType":"release","actionItems":["Review the official LangChain releases release notes before upgrading.","Check compatibility, migration, and security notes against your current agent stack.","Run focused regression tests before production rollout."],"body":"LangChain releases published langchain-core==1.7.0. This automated release-watch entry was generated from the project's official GitHub release feed and is kept separate from human-reviewed editorial analysis. Release notes: Changes since langchain-core==1.6.13 release(core): 1.7.0 ( 41418 ) feat(core): emit tool-call-delta for streamed tool-call args ( 41257 ) Notes Tool-call args now stream as tool-call-delta slices instead of block-delta snapshots of the args so far. If you read raw stream events and their block-delta args mid-stream, read tool-call-delta instead. .tool calls.get() and .output are unchanged. To keep snapshots, pin langchain-core<1.7 . Since 1.6.13, iterating ChatModelStream.tool calls yields each call's new args slice, not a snapshot of the args so far.","sponsors":[]}