build(deps): bump the langchain group with 4 updates

[dependabot]

Bumps the langchain group with 4 updates: @langchain/core, langchain, @langchain/langgraph-checkpoint and @langchain/langgraph-checkpoint-validation.

Updates @langchain/core from 1.2.2 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

@​langchain/core@​1.2.3

Patch Changes

... (truncated)

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...
• Additional commits viewable in compare view

Updates langchain from 1.5.3 to 1.5.10

Release notes

Sourced from langchain's releases.

langchain@1.5.10

Patch Changes

• #11412 7df258c Thanks @​hntrl! - chore(langgraph): update langgraph deps to track serialization fix

langchain@1.5.9

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@1.5.8

Patch Changes

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

langchain@1.5.7

Patch Changes

• #11363 2d1f744 Thanks @​hntrl! - feat(langchain): add langsmith gateway to initChatModel- #11362

langchain@1.5.6

Patch Changes

• #11331 18765b0 Thanks @​thushanth-bengre-langchain! - fix(langchain): exclude middleware-internal model calls from the message projection

  Bookkeeping model calls made by summarizationMiddleware and toolEmulatorMiddleware no longer appear in run.messages or stream({ streamMode: "messages" }), and the summary summarizationMiddleware writes back to state is no longer projected as a new message. These calls remain observable via streamEvents({ version: "v2" }), identified by lc_source.

• #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@1.5.5

Patch Changes

• #11277 0bd12f0 Thanks @​vladislav-nechakhin! - fix(langchain): resolve LocalFileStore keys with path.relative

langchain@1.5.4

Patch Changes

... (truncated)

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...
• Additional commits viewable in compare view

Updates @langchain/langgraph-checkpoint from 1.1.3 to 1.1.5

Release notes

Sourced from @​langchain/langgraph-checkpoint's releases.

@​langchain/langgraph-checkpoint@​1.1.5

Patch Changes

• #2714 a2a59ec Thanks @​hntrl! - Update checkpoint integrations to require the patched checkpoint serializer release.

@​langchain/langgraph-checkpoint@​1.1.4

Patch Changes

• #2709 c3b27a9 Thanks @​hntrl! - fix(checkpoint): narrow re-constructable types in JsonPlusSerializer

Changelog

Sourced from @​langchain/langgraph-checkpoint's changelog.

1.1.5

Patch Changes

• #2714 a2a59ec Thanks @​hntrl! - Update checkpoint integrations to require the patched checkpoint serializer release.

1.1.4

Patch Changes

• #2709 c3b27a9 Thanks @​hntrl! - fix(checkpoint): narrow re-constructable types in JsonPlusSerializer

Commits

• 6530ba9 chore: version packages (#2715)
• 299bccd chore: version packages (#2711)
• c3b27a9 fix(checkpoint): narrow re-constructable types in JsonPlusSerializer (#2709)
• cac6d31 chore(deps): bump the vite-vitest group across 1 directory with 6 updates (#2...
• 8fb6376 chore: update Vitest to 4.1.9 (#2587)
• 82e07d0 docs(checkpoint): document edge runtime compatibility and persistence flush
• See full diff in compare view

Updates @langchain/langgraph-checkpoint-validation from 1.1.0 to 1.1.1

Release notes

Sourced from @​langchain/langgraph-checkpoint-validation's releases.

@​langchain/langgraph-checkpoint-validation@​1.1.1

Patch Changes

• #2714 a2a59ec Thanks @​hntrl! - Update checkpoint integrations to require the patched checkpoint serializer release.

Changelog

Sourced from @​langchain/langgraph-checkpoint-validation's changelog.

1.1.1

Patch Changes

• #2714 a2a59ec Thanks @​hntrl! - Update checkpoint integrations to require the patched checkpoint serializer release.

Commits

• 6530ba9 chore: version packages (#2715)
• a2a59ec fix: require patched checkpoint release
• af64bf5 fix: restore checkpoint peer ranges (#2713)
• c3b27a9 fix(checkpoint): narrow re-constructable types in JsonPlusSerializer (#2709)
• cac6d31 chore(deps): bump the vite-vitest group across 1 directory with 6 updates (#2...
• 8fb6376 chore: update Vitest to 4.1.9 (#2587)
• 379bfd9 test(langgraph-checkpoint-validation): cover channel carry-over reconstructio...
• 4487214 fix(langgraph): replay concurrent DeltaChannel writes in live order (#2544)
• 9e114e5 chore(deps): remove uuid dependency in favor of embedded uuid in core (#2527)
• See full diff in compare view

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[anselm94]

These dependency updates are being consolidated into PR #40.

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