chore(deps-dev): bump the langchain group across 1 directory with 2 updates - #1622
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The langchain-openai bump spans a major version boundary (0.3.34 → 1.1.12), which may introduce breaking API changes in the test suite — worth a human check that CI passes.
Extended reasoning...
Overview
This is a dependabot PR updating two dev-only dependencies in pyproject.toml and uv.lock: langchain-openai (0.3.34 → 1.1.12) and langchain (1.2.13 → 1.2.15). Incidentally, langgraph (1.1.3 → 1.1.5) and langgraph-prebuilt (1.0.8 → 1.0.9) are also bumped as transitive resolution changes. All changes are to the [dependency-groups] dev section — none affect the published package.
Security Risks
No security risks from the version bumps themselves. The langchain 1.2.14 release includes a pygments CVE fix (CVE-2026-4539), which is a minor positive. No auth, crypto, or data-exposure surface in these changes.
Level of Scrutiny
The langchain-openai jump from 0.3.34 to 1.1.12 crosses a major version boundary and skips many minor versions, meaning the upstream library may have introduced API breaking changes. Even though it is a dev dependency, the test suite relies on it and tests could silently pass or fail depending on API compatibility. The constraint in pyproject.toml was widened from <0.4 to <1.2 to accommodate this, which is a deliberate widening. A human should confirm CI is green before merging.
Other Factors
No bugs were found by the automated bug hunting system. The langchain and langgraph bumps are minor patch-level and low risk. The lock file hash updates are consistent with the version changes. The main concern is solely the magnitude of the langchain-openai version jump.
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…pdates Bumps the langchain group with 2 updates in the / directory: [langchain-openai](https://github.com/langchain-ai/langchain) and [langchain](https://github.com/langchain-ai/langchain). Updates `langchain-openai` from 0.3.34 to 1.6.2 - [Release notes](https://github.com/langchain-ai/langchain/releases) - [Commits](langchain-ai/langchain@langchain-openai==0.3.34...langchain-openai==1.6.2) Updates `langchain` from 1.2.13 to 1.4.0 - [Release notes](https://github.com/langchain-ai/langchain/releases) - [Commits](langchain-ai/langchain@langchain==1.2.13...langchain==1.4.0) --- updated-dependencies: - dependency-name: langchain dependency-version: 1.2.15 dependency-type: direct:development update-type: version-update:semver-patch dependency-group: langchain - dependency-name: langchain-openai dependency-version: 1.1.12 dependency-type: direct:development update-type: version-update:semver-major dependency-group: langchain ... Signed-off-by: dependabot[bot] <support@github.com>
Bumps the langchain group with 2 updates in the / directory: langchain-openai and langchain.
Updates
langchain-openaifrom 0.3.34 to 1.6.2Release notes
Sourced from langchain-openai's releases.
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Commits
6035769release(openai): 1.6.2 (#40339)a7b0f0adocs: update OpenWiki (#40318)1611938fix(openai): add GPT-6 Astra reasoning efforts (#40330)f092c9achore(model-profiles): refresh model profile data (#40317)22f3421docs: update OpenWiki (#40218)1c40140chore(deps): bump httpx2 from 2.10.0 to 2.12.0 in /libs/partners/openai (#40309)db613a9fix(openai): bumpmax_completion_tokensin cache breakpoint integration tes...9f2eb7frelease(openai): 1.6.1 (#40268)765eb32chore(model-profiles): refresh model profile data (#40277)e670c7achore(model-profiles): refresh model profile data (#40258)Updates
langchainfrom 1.2.13 to 1.4.0Release notes
Sourced from langchain's releases.
... (truncated)
Commits
79cab2drelease(anthropic): 1.7.1 (#40181)1e6a4f0chore(model-profiles): refresh model profile data (#40171)8330dfedocs(langchain): runnablelangchain.mcpexamples (#39976)280442bfeat(langchain):langchain.mcpnamespace,MCPAdapter(#39939)f5ee2b6chore(chroma): bump Pygments security constraint (#40162)234255cchore(model-profiles): refresh model profile data (#40009)79e0e4achore(deps): bump mistune from 3.3.0 to 3.3.3 in /libs/langchain (#40149)e90201bchore(deps): bump mistune from 3.3.0 to 3.3.3 in /libs/core (#40150)4240248chore(deps): bump mistune from 3.3.0 to 3.3.3 in /libs/text-splitters (#40148)530290achore(deps): bump uv to 0.12.8 (#40092)