Qdrant: $87.8M funded Rust vector database — Tripadvisor, HubSpot, Canva in production

Qdrant, written entirely in Rust, raised $50M Series B (total $87.8M, March 2026). 29,762 GitHub stars, 250M+ downloads. Production users: Tripadvisor, HubSpot, OpenTable, Canva, Bosch, Roche. Key claim: "Infrastructure on the critical path of production AI cannot afford garbage collection pauses."