LangChain's LangSmith Engine v2 adds agent red teaming, issue detection, and fix testing
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The articles in this story. Times are ET.
Harrison ChaseXLangChain rolls out agent redteaming to more usersAIHarrison Chase says LangChain is rolling out redteaming to more users, a feature for finding places where the agent makes mistakes. He says the name is a bit of a misnomer because it focuses less on security than on agent failures. Interested users can DM him to try it.
- LangChain BlogOfficialLangChain newsletter lists LangSmith Engine v2, Managed Deep Agents v0.9 and Fine-Tuning
AILangChain's October 2026 newsletter announces LangSmith Engine v2, which adds Red Teaming to catch issues before production, and Managed Deep Agents v0.9, which adds user-level memory, Slack reactions and built-in web search. It also lists LangSmith AI Search, Trajectories, Custom Apps and Fine-Tuning, plus LangChain v1.4.0, which adds FastMCP support through the langchain.mcp namespace.
LangChainOfficialLangChain announces afternoon talks on secure support agents and LangSmith EngineAILangChain's post lists three afternoon sessions: OVO Energy on building secure customer support agents, Ben Tannyhill on how LangSmith Engine was built, and Jimdo on creating an AI companion for small businesses with LangSmith.
- LangChainOfficialLangSmith Engine v2 adds agent red teaming and automated fix testing
AILangChain announces LangSmith Engine v2, which red teams agents, detects more issue types, and automatically tests proposed fixes. The update was presented by Ben Tannyhill at the Interrupt NYC session.
