OSS RAG Expands: Milvus, Dubbed the "Oracle of Vector DBs," and Qdrant, Spreading Explosively Across Asia

In 2026, with GenAI production deployments having gone through a full cycle, the leading role in vector databases—the core of RAG (Retrieval-Augmented Generation)—is shifting decisively from proprietary SaaS to OSS. Milvus, the China-born project under the Apache 2.0 license, has surpassed 40,000 GitHub stars as the "enterprise standard," while Rust-built [Qdrant](https://newsify.tv/services/qdrant-cloud) has raised $50 million (approximately 7.5 billion yen) in Series B and is spreading explosively among developers in Europe and Asia. This article integrates the on-the-ground sense of Silicon Valley engineers, the latest reporting from various media outlets, and the moves planned for Q2 2026 and beyond. ---