- Added phrase matching, stop‑words, multilingual tokenizer (default) and snowball stemmer to full‑text index, plus asymmetric and 2 bit/1.5 bit binary quantization and Maximum Marginal Relevance.
- Implemented many performance improvements such as RocksDB migration, HNSW healing, faster mutable posting lists, gridstore optimizations, sequential reads, snapshot recovery enhancements, and inference usage reporting in API responses.
- Fixed numerous bugs (replication factor, memory usage, IDF computation, shard initialization, inference error propagation, etc.) and deprecated init‑parameter, JWT payload filters, mmap‑threshold, and lock API, slated for removal in v1.16.
v1.15.0
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