LangChain langchain==1.3.5 — Release Notes & Engineering Impact

Source available — automated, not human-reviewed

Component: langchain · Channel: stable. Automated analysis, not a compatibility certification. How this works.

Analysis updated: 2026-11-01.

Compatibility not verified — check source notes

📄 .MD

⚡ Executive Summary (TL;DR)

LangChain langchain==1.3.5. Source highlight: Changes since langchain==1.3.4

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Who Does This Impact? (Role-Based Analysis)

💻 Software Engineers & Devs

Check the source notes against the package and APIs you use before upgrading.

📊 Product & Engineering Leads

Use the documented changes to assess relevance to your product; release frequency alone is not a quality measure.

⚙️ DevOps & Security

Verify the target version, runtime requirements and rollback procedure in the official documentation.

📄 View Raw Release Notes (Original Developer Log)

Changes since langchain==1.3.4 release(langchain): 1.3.5 (#37998) feat(langchain): port AND-capable trigger conditions to `SummarizationMiddleware` (#34576) hotfix(openai): min core dep (#37990) feat(openai): support `apply_patch` built-in tool (#37157) chore: bump pyarrow from 21.0.0 to 23.0.1 in /libs/langchain_v1 (#37930) chore: bump dependencies (#37892) chore: bump aiohttp from 3.13.4 to 3.14.0 in /libs/langchain_v1 (#37888)

← Older Version LangChain langchain==1.3.4 Newer Version → LangChain langchain==1.3.6