LangGraph SDK 0.4.14 adds strict_resume and new StreamMode values

Nov 6, 2026 · 14:19 UTC

The point

LangChain released langgraph-sdk 0.4.14, with changes since sdk 0.4.13. The release adds strict_resume to runs.create, stream and wait. It also adds tools and lifecycle to StreamMode.

Why it matters

For builders, run resume gains a strict option and StreamMode gains tools and lifecycle options.

Key details

• Version langgraph-sdk 0.4.14, listed as release sdk-py 0.4.14 in PR 9610
• strict_resume added to runs.create, stream and wait in PR 9599
• tools and lifecycle added to StreamMode in PR 9601

Original ~1 min → 25 sec here Source: LangGraph Releases, Nov 6, 2026