- Added customizable privilege groups and a new Grant/Revoke API for finer‑grained RBAC control, plus built‑in groups for common scenarios
- Improved performance: CPU‑optimized health checks, faster collection loading, 10% boost for sparse index, and numerous engine and REST API enhancements
- Fixed multiple critical crashes and sync issues, corrected metrics inaccuracies, and improved stability across DataNode, compaction, and import processes