LangChain Adds Azure Cosmos DB Connector for Agents and RAG

A new connector, langchain-azure-cosmosdb, aims to simplify how developers build AI agents and RAG apps. Instead of wiring together a vector database, chat history store, agent state checkpointer, semantic cache, and long‑term memory, the integration lets these pieces run on Azure Cosmos DB. The goal is to cut operational overhead, latency, and the maintenance burden of running multiple services.