LangChain AI Updates: June 6, 2026

1. LangChain Launches LangSmith Sandboxes for Agent Code Execution

LangChain. LangChain introduced LangSmith Sandboxes, isolated hardware-virtualized environments that give agents a dedicated filesystem, shell, package manager, and persistent state for executing code. Each sandbox runs as a full machine with its own kernel rather than a container, providing hardware-level isolation against threats such as supply chain attacks and kernel exploits, and supports burst workloads of thousands of parallel environments. The post, authored by Amy Ru, cites monday.com using Sandboxes to power secure code generation in its Sidekick AI assistant. Source