Upgraded answer relevance scoring -- significantly better understanding of NEC tables and engineering content.

Added short-circuit analysis for power system fault current calculations.

Expanded tenant isolation across all data tables.

Enhanced authentication with zero-downtime credential rotation.

Expanded tenant isolation to all platform tables.

Smarter test scheduling to ensure accuracy stays high without wasted processing.

UI improvements across connector management, chat panel, and file upload workflows.

Microsoft OneDrive and SharePoint connector with folder sync.

Full platform monitoring with severity-based alerting.

Knowledge graph now auto-creates reusable procedures when successful patterns repeat across projects.

Learning algorithms continuously evaluated and improved from real production data.

Improved knowledge graph retrieval -- connections between documents, equipment, and specifications are traversed more accurately.

Wrong-answer retrieval paths are now automatically penalized to prevent repeating mistakes.

Knowledge graph self-tunes over time based on answer accuracy.

Fresher search results with recency-aware indexing.

Background intelligence -- the platform continuously monitors accuracy, reviews conversation quality, and tracks system health.

Electrical engineering capabilities: NEC load calculations (Article 220), voltage drop analysis, conductor sizing.

Cost tracking with per-user attribution.

Security hardening with defense-in-depth network protection and rate limiting.