Milvus 2.6.10-2.6.15: CVE-2026-26190 Security Patch, Automatic FP32-to-FP16 Conversion, and RBAC Backup/Restore Fixes

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Milvus shipped versions 2.6.10 through 2.6.15 addressing CVE-2026-26190 (KMS key revocation security), adding automatic FP32-to-FP16/BF16 conversion for search performance, optimized segment loading, and fixes for RBAC backup/restore and cross-version upgrade compatibility. With 44K+ GitHub stars, Milvus is a core infrastructure component for agent RAG workloads. The FP32-to-FP16 auto-conversion is particularly impactful — it reduces vector storage costs by ~50% with minimal accuracy loss for most agent retrieval use cases.