- Added new NVIDIA vectorizer modules (reranker, generative, text2vec, multi2vec) and expanded gRPC aggregate capabilities.
- Extensive RBAC enhancements: groups assignment/revocation, scope‑based actions, immutable root groups, experimental readonly groups env, and clearer internal admin handling.
- Performance and stability improvements: bitmap and NotEqual filter optimizations, blockmax WAND speedups, async replication refinements, and numerous bug fixes (bm25 batch indexing, shard drop race, metrics handling).
v1.28.5 - RBAC improvements, New NVIDIA modules, NotEqual filter performance improvements, Schema metrics improvements
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Bound digest RPC memtable snapshots to the requested key range and improved async replication performance by negotiating binary digest encoding and carrying byte ID digests end‑to‑end.
Added new REST search endpoints (bm25, hybrid, near object, aggregate counts) and backup role inclusion feature.
Fix async replication handling, including local resolution of replicas, leaked goroutine fixes, and proper tenant restoration on failures.