Qdrant 1.15 - Smarter Quantization & better Text Filtering - Qdrant

What this post added

Introduced 1.5-bit and 2-bit quantization for improved compression and accuracy, and asymmetric quantization for combining binary storage with scalar queries. Enhanced text indexing with multilingual tokenization, stop words, stemming, and phrase matching. Added Maximal Marginal Relevance (MMR) reranking for diversifying search results. Implemented HNSW healing for more efficient index updates and migration to Gridstore for faster ingestion.