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LangChain releases four major updates: OpenWiki for auto-generating codebase docs, voice agent tutorials, Harbor evaluation integration, and deepagents programmable sub-agents.

OpenWiki is an open-source CLI tool that automatically generates and maintains structured documentation for AI agents. It addresses the context gap in AI coding assistants like Claude Code and Cursor, helping teams build effective context engineering workflows.

LangChain open-sources OpenWiki, a tool that auto-generates and maintains AI-readable wiki documentation for codebases via a single command, powered by Git history and agents.md integration.