Open sourceOpen-source releaseAgents & Tool Use · MLOps, Tooling & Infrastructure1 source · Sep 29, 2026

langchain-ai/langchain langchain-anthropic==1.7.5

fix(anthropic): support Claude Sonnet 5.5 compatibility (#40882)

Key points

  • fix(anthropic): serialize invalid tool calls as tool use on replay (#40864)

Sources (1)

Extractive summary: sentences quoted from the sources.

Before this

  1. Sep 29, 2026langchain-ai/langchain langchain-core==1.6.6
  2. Sep 29, 2026Sonnet 5.5 is worth a try
  3. Sep 29, 2026[AINews] AMD buys World Labs for $8.2B, as Atlas solves sparse reconstruction problem for robotics, design and more
  4. Sep 29, 2026Claude Code’s Next Era — Thariq Shihipar, Anthropic
  5. Sep 29, 2026What do you want from AI?
  6. Sep 15, 2026Introducing Gemini 3.8 Live and 3.8 Live Extended Thinking

Related