chore(deps): bump @langchain/core from 1.2.3 to 1.2.9

[dependabot]

Bumps @langchain/core from 1.2.3 to 1.2.9.

Release notes

Sourced from @​langchain/core's releases.

@​langchain/core@​1.2.9

Patch Changes

• #11402 43e4396 Thanks @​thushanth-bengre-langchain! - Fix ChatVertexAI/ChatGoogle content blocks: include tool_call blocks from message.tool_calls and skip spurious empty text blocks in contentBlocks.

@​langchain/core@​1.2.8

Patch Changes

• #11369 d6ad973 Thanks @​hntrl! - fix(langchain): use unified endpoint for gateway

• #11342 3b0e4c4 Thanks @​thushanth-bengre-langchain! - feat(core): mark errors as retryable or not, and stop retrying the ones that aren't

  Retry middleware retried every failure up to maxRetries, including deterministic ones like a bad API key or an unknown model. Retries also nest, so a single such failure could cost dozens of API calls.

  @langchain/core/errors adds stampRetryable(error, retryable) and getRetryable(error). Marking an error leaves its class and shape untouched, so a provider SDK error can be classified without breaking instanceof. getRetryable returns undefined for errors nobody classified, and both are exported so tool authors can mark their own failures.

  modelRetryMiddleware and toolRetryMiddleware now respect the mark by default, and retries stop as soon as one is found rather than each layer spending its own budget. Aborted calls, context overflow, and oversized payloads are marked non-retryable out of the box. Models accept a per-call maxRetries so a surrounding retry loop can take over.

  Behavior change: errors marked non-retryable now fail on the first attempt. Unclassified errors — including any from third-party integrations or custom tools — retry exactly as before. Pass retryOn: () => true to restore the old default. A custom onFailedAttempt replaces the built-in handler and opts out of marking.

@​langchain/core@​1.2.7

Patch Changes

• #11366 c068bbf Thanks @​hntrl! - fix(core,langchain): patch and release core, update peer dependencies

@​langchain/core@​1.2.6

Patch Changes

• #11344 f08e0c6 Thanks @​hntrl! - fix: apply [Symbol.hasInstance] method to all comparable properties using .isInstance()

  We have some internal schemas that rely on z.instanceof(). This uses a strict instanceof check which can conflict if there are multiple versions of core installed. This overrides the Symbol.hasInstance method to use the same logic as .isInstance() to compare objects at runtime.

@​langchain/core@​1.2.5

Patch Changes

• #11305 e654022 Thanks @​jacoblee93! - Add LangSmith Gateway environment configuration to OpenAI, Anthropic, and Fireworks chat models.

• #11295 1a1b347 Thanks @​vladislav-nechakhin! - fix(core): pass the mustache escape override per render call

@​langchain/core@​1.2.4

Patch Changes

• #11190 9654bde Thanks @​pawel-twardziak! - Coalesce nested LangChain tracer callbacks that share run bookkeeping.

• #11153 84ce6d6 Thanks @​parveshsaini! - fix(core): bind splitText when trimMessages receives a TextSplitter instance

Commits

• e493ed6 chore: version packages (#11393)
• 8384848 fix(google-common): release endpoint routing fix as patch (#11413)
• 8cfff4d feat(google): add gateway support for genai (#11405)
• 7df258c chore(langchain): update langgraph deps (#11412)
• 3ceef4b fix(anthropic): round-trip tool search server-tool result blocks (#11407)
• fe8eec1 fix(openai): drop Gemini functionCall content blocks in Chat Completions mess...
• 0e7c765 fix(google-genai): throw ContentBlockedError when Gemini candidate has no con...
• 5c9fdf2 fix(openai): retain cache_write_tokens, update to v7 sdk (#11399)
• 5ff9179 fix(google-genai): guard streaming chunks when candidate has no content (#10742)
• 43e4396 fix(core): include tool_call blocks and skip empty text blocks in ChatVertexA...
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