LangChain has evolved significantly in the two years since the release of its Python package, transitioning from an open-source library to a company offering multiple products aimed at enabling the development of context-aware, agentic applications powered by large language models (LLMs). The original LangChain focused on connecting LLMs to external computation and data sources, but the company has since introduced LangSmith and LangGraph to address the challenges of production-ready application development. LangSmith provides testing and observability tools to enhance the reliability of LLM applications, while LangGraph offers flexible orchestration for agent control, catering to a spectrum of autonomy. Over this period, the generative AI ecosystem has stabilized and expanded, with LangChain supporting over 700 integrations, reflecting a matured focus on production applications rather than just prototypes. The community has played a pivotal role in this growth, with contributions doubling and the number of apps powered by LangChain increasing significantly. As LangChain continues to push forward, it remains committed to its mission of simplifying the creation of LLM applications while exploring new tools and capabilities.