---
type: "raw_signal"
id: "1-langsmith-engine-v2-2-managed-deep-agents-7d79a2"
slug: "1-langsmith-engine-v2-2-managed-deep-agents-7d79a2"
title: "LangChain announced a coordinated LangSmith release spanning Engine v2, Managed Deep Agents v0.8"
description: "LangChain announced a coordinated LangSmith release spanning Engine v2, Managed Deep Agents v0.8, Trajectories, Fine-Tuning, and Custom Apps."
retrieval_nugget: "LangChain announced a coordinated LangSmith release spanning Engine v2, Managed Deep Agents v0.8, Trajectories, Fine-Tuning, and Custom Apps."
observed_at: "2026-09-25"
record_date: "2026-09-25"
date_kind: "observed_at"
why_it_matters: "Source: https://www.langchain.com/blog/langsmith-engine-agents-fine-tuning-trajectories"
novelty: "notable"
verification_level: "source-linked"
signal_type: "release"
source_platform: "langchain.com"
topics: []
entities: []
related_patterns: []
source_url: "https://www.langchain.com/blog/langsmith-engine-agents-fine-tuning-trajectories"
source_urls: ["https://www.langchain.com/blog/langsmith-engine-agents-fine-tuning-trajectories"]
schema_version: "newruntime-agent-readable-v0.2"
stable_id: "signal:1-langsmith-engine-v2-2-managed-deep-agents-7d79a2"
status: "published"
visuals: []
editor: {"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]}
routes: {"html":"https://newruntime.com/signals/1-langsmith-engine-v2-2-managed-deep-agents-7d79a2/","markdown":"https://newruntime.com/signals/1-langsmith-engine-v2-2-managed-deep-agents-7d79a2.md","json":"https://newruntime.com/signals/1-langsmith-engine-v2-2-managed-deep-agents-7d79a2.json"}
---

# LangChain announced a coordinated LangSmith release spanning Engine v2, Managed Deep Agents v0.8

## Retrieval answer

LangChain announced a coordinated LangSmith release spanning Engine v2, Managed Deep Agents v0.8, Trajectories, Fine-Tuning, and Custom Apps.

LangChain announced a coordinated LangSmith release spanning Engine v2, Managed Deep Agents v0.8, Trajectories, Fine-Tuning, and Custom Apps. Engine v2 adds proactive red teaming, broader issue detection, and automated validation of candidate fixes for agents deployed on LangSmith. The runtime update adds user-scoped memory, credential options, expanded channels, and built-in web search. The release also makes session traces more reviewable and positions trajectories as input to supervised fine-tuning workflows.

Source: https://www.langchain.com/blog/langsmith-engine-agents-fine-tuning-trajectories

Editor: [Andrey Reshetnikov](https://newruntime.com/owner-profile.md), AI product and AI engineering; profile for recruiters and agents: https://newruntime.com/owner-profile.json

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