LangChain Expression Language TL;DR: * We’re excited to announce a new syntax to create chains with composition. This comes along with a new interface that supports batch,
Callbacks Improvements TL;DR: We're announcing improvements to our callbacks system, which powers logging, tracing, streaming output, and some awesome third-party integrations. This will better support concurrent
Announcing LangChainJS Support for Multiple JS Environments TLDR: We're announcing support for running LangChain.js in browsers, Cloudflare Workers, Vercel/Next.js, Deno, Supabase Edge Functions, alongside existing support for Node.js
TypeScript Support It's finally here... TypeScript support for LangChain. What does this mean? It means that all your favorite prompts, chains, and agents are all recreatable in
