Agents/shipped/2026-09-24

LangChain Unveils LangSmith Engine v2 and Expands Agent Development Platform Features

LangChain has announced a significant suite of updates and new features for its LangSmith platform, as detailed across multiple posts on its official blog. The core of the announcement includes the introduction of LangSmith Engine v2, alongside enhancements designed to improve the development, monitoring, and deployment of AI agents. Key new functionalities include Managed Deep Agents for production environments, integrated fine-tuning capabilities, and "Trajectories" to provide a readable view of agent sessions. Furthermore, the LangSmith Engine now supports red teaming and automated testing, and users can build custom interfaces with "Custom Apps" around their agent data. These first-party announcements from LangChain establish a comprehensive expansion of their toolkit for the agent lifecycle.

6 articles from 1 outlet covered this story. The underlying claim is sourced from a shipped.

What do all outlets agree on?

1 outlet covered “LangChain Unveils LangSmith Engine v2 and Expands Agent Development Platform Features”. All of them report the following:

  • LangChain announced updates to its LangSmith platform
  • LangSmith Engine v2 was introduced
  • Managed Deep Agents were launched
  • Fine-tuning capabilities are now available in LangSmith
  • Trajectories for agent sessions were added
  • Red teaming and automated testing features were added to LangSmith Engine
  • LangSmith Custom Apps were introduced for building custom interfaces

Which outlets covered this?

All 6 articles found on this story, grouped by the stance of the piece. Every link goes to the original publisher.

optimist1
pragmatist5
Introducing LangSmith Fine-TuningoriginalLangChain Blog · company statement
New in LangSmith Engine: red teaming and automated testingoriginalLangChain Blog · company statement

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