chore(deps-dev): bump @langchain/core from 1.2.9 to 1.2.11

[dependabot]

Bumps @langchain/core from 1.2.9 to 1.2.11.

Release notes

Sourced from @​langchain/core's releases.

@​langchain/core@​1.2.11

Patch Changes

• #11603 fec9cd8 Thanks @​thushanth-bengre-langchain! - fix(core): build streaming llmOutput.tokenUsage from the fully-accumulated chunk instead of whichever individual chunk's usage_metadata arrived last

  Affects both core streaming paths — .stream()/.streamEvents() (_streamIterator) and .invoke()/.generate() when a streaming-preferring callback is attached (_generateWithCache's hasStreamingHandler branch). Previously, llmOutput.tokenUsage was overwritten by each chunk in turn, so only the last chunk carrying usage_metadata won — correct for providers that emit one cumulative total on a final chunk, but wrong for providers (e.g. @langchain/google, @langchain/anthropic) that emit usage_metadata as a per-chunk delta across multiple chunks, where the values must be summed.

  Note for provider authors: this assumes each streamed chunk's usage_metadata is either a per-chunk delta or appears only on a single final chunk. A provider that instead repeats a cumulative total on every chunk will now see it summed (and inflated) in llmOutput.tokenUsage, matching the existing behavior of the correctly-working message.usage_metadata field.

  Also fixes @langchain/google's invoke({streaming: true}) path (no streaming-preferring callback attached), where llmOutput was never populated at all.

• #11590 ffebdc2 Thanks @​thushanth-bengre-langchain! - Fix OpenAI Responses API replay under Zero Data Retention when a response contains more than one reasoning item, for both v0 and v1. In v0, the default replay path now reuses response_metadata.output directly, preserving every reasoning item's id/encrypted_content in original order. In v1, AIMessage.contentBlocks (outputVersion: "v1") is fixed the same way. additional_kwargs.reasoning is unchanged.

@​langchain/core@​1.2.10

Patch Changes

• #10047 ff1248f Thanks @​afirstenberg! - fix(core): BaseMessage.text use contentBlocks

Commits

• 778566e chore: version packages (#11607)
• 18b71af feat(google-genai): add outputDimensionality parameter to GoogleGenerativeAIE...
• 35368db fix(google): surface groundingMetadata/citationMetadata on streaming path (#1...
• 78b2923 fix(google): preserve tool call id and thoughtSignature in native streaming (...
• ffebdc2 fix(openai): correctly handle multiple reasoning items in v1 content blocks (...
• c9ae847 fix(google): set includeServerSideToolInvocations when mixing tools (#11611)
• bc88b75 fix(google): route Vertex multi-region endpoints (#11433)
• fec9cd8 fix(core): build streaming llmOutput.tokenUsage from accumulated usage (#11603)
• 194a063 fix(google): allowlist JSON Schema keywords for Gemini schemas (#11606)
• b0a0d3f fix(deps): upgrade Vitest to address GHSA-82fw-gwwq-j7x9 (#11599)
• Additional commits viewable in compare view

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[dependabot]

Superseded by #151.