Summary: LangSmith adds observability, evaluation, deployment.

Why It Matters: This shows LangSmith is growing its features to help people build and run AI agents better.

What Changed:

• The heading "Granular visibility & control" changed to "Visibility & control".
• New section "Model neutral" was added, talking about swapping models and avoiding vendor lock-in.
• A new section "Your agent engineering stack" was added, listing LangChain and LangGraph.
• Detailed descriptions of LangSmith's features were added:
  • LangSmith Observability: for seeing what agents are doing.
  • LangSmith Evaluation: for improving agent quality.
  • LangSmith Deployment: for infrastructure to run agents.
• A section "Build agents your way, with templates or custom control" was added, including "Bring your own framework."
• The content was reorganized to highlight LangSmith's specific offerings more clearly.