Qdrant 1.11 - The Vector Stronghold: Optimizing Data Structures for Scale and Efficiency - Qdrant

Qdrant 1.11 introduces defragmentation of tenant storage to co-locate vectors from the same tenant for improved read performance and cost efficiency, configurable via `is_tenant=true` on payload indexes. It adds `on_disk=true` support for payload indexes to offload cold data, improving memory management for large datasets. A new UUID datatype for payload indexes reduces memory overhead by storing UUIDs as 16-byte values. The Query API now supports a Groups endpoint for result aggregation by payload fields, random sampling, and distribution-based score fusion. New Web UI tools include a Search Quality Tool and a Graph Exploration Tool.