Bumps ai to 7.0.0-canary.166

Patch Changes Updated dependencies [19736ee] Updated dependencies [d66ae02] Updated dependencies [e4182bd] ai@7.0.0-canary.166

Shipping a Trillion Parameters With a Hub Bucket: Delta Weight Sync in TRL

Adds explicit prompt caching support for OpenAI models

Changes since langchain-openai==1.3.4 release(openai): 1.3.5 (#38785) feat(openai): support explicit prompt caching (#38762) chore(model-profiles): refresh model profile data (#38774)

Surfaces tool-dispatched subagents on run.subagents

Minor Changes #11062 `3ebd10a` Thanks @christian-bromann! - feat(langchain): surface tool-dispatched subagents on `run.subagents` Add a native subagent stream transformer to `createAgent` so v3 runs expose named nested…

Fixes file-search results handling in Anthropic integration

Changes since langchain==1.3.8 release(anthropic): 1.4.6 (#38105) release(langchain): 1.3.9 (#38104) fix(langchain,anthropic): confine file-search results and tighten anthropic `allowed_prefixes` (#38106)

Adds package version tracking to tracing metadata

Changes since langchain-core==1.4.5 release(core): 1.4.6 (#38061) feat(core,partners): add package version tracking to tracing metadata (#35295) fix(core,openai): normalize v1 streamed tool calls (#35983) chore(infra)…

Adds apply_patch built-in tool support for OpenAI

Changes since langchain-openai==1.2.2 hotfix(openai): min core dep (#37990) release(openai): 1.3.0 (#37989) feat(openai): support `apply_patch` built-in tool (#37157) chore(model-profiles): refresh model profile data…

Removes Bedrock prevalidation from load

Changes since langchain-core==1.4.0 release(core): 1.4.1 (#37922) fix(core): remove Bedrock prevalidation from `load` (#37909) docs(core): expand and link `ModelProfile` docstrings (#37904) release(anthropic): 1.4.4…

Migrates to fireworks-ai 1.x SDK

Changes since langchain-fireworks==1.3.1 release(fireworks): 1.4.0 (#37582) feat(fireworks): migrate to `fireworks-ai` 1.x SDK (#37581) chore(model-profiles): refresh model profile data (#37574) chore: bump idna from…

LangChain (Python) — langchain v1.3.0

This release adds support for `version="v3"` in `stream_events` / `astream_events` for `langchain` agents. Refer to the event streaming guide for details.

LangChain (Python) — langchain-core v1.4.0

Changes since langchain-core==0.3.86 chore(infra): merge v1.4 into master (#37350) chore: bump urllib3 from 2.6.3 to 2.7.0 in /libs/core (#37329) fix(core): avoid eager `pydantic.v1` import in `@deprecated` (#37308)…

LangChain (Python) — langchain v1.3.0a2

Initial release release(langchain): 1.3.0a2 (#37225) release(langchain): 1.3.0a2 (#37224) fix(langchain): ordered schema resolution — list replaces set so state_schema wins (#37223) release(langchain): 1.3.0a1 (#37140)…

LangChain (Python) — langchain-core v1.4.0a2

Initial release release(core): 1.4.0a2 (#37134) refactor(core): unwind _AsyncEventsResult hybrid for astream_events (#37133) release(core): 1.4.0a1 (#37132) Merge remote-tracking branch 'origin/master' into v1.4…