Release History ā Framework
CHANGELOG v7.0
Versioned release history with feature additions, metric changes, bug fixes, and validation notes. Every change is documented and linked to its methodology update.
v7.0.0 ā Rosetta
Released 2026-07-21
v7.0.0
Feature New Metrics
- Added Geometry Fidelity Score (GFS) ā measures fit to reference geometry after normalization.
- Added Tension Distribution Index (TDI) ā quantifies uniformity of fabric load across seat.
- Added Zero-Gap Compliance (ZGC) ā pass/fail + graded score for waistband contact.
- Added Motion Stability Score (MSS) ā composite across 5 motion states.
- Added Reproducibility Score (RS) ā measured on every run (Nā„5 repeated runs).
- Added Calibration Error (CE) ā computed on holdout set, updated each release.
- Added Confidence / Uncertainty Score (CUS) ā replaces opaque quality flags.
- NGI ( Glow Index) retained but explicitly labeled "simulated" pending photo validation.
Breaking Metric Changes
- Replaced opaque "Perfecto Score" with transparent "Composite Score" derived from GFS, PD, TDI, MSS.
- Composite Score formula weights are now documented in the metric registry and changelog.
- Curvature Score (v6.0 scalar) replaced by Curvature Radius Profile (12-angle array with error bars).
Feature Provenance & Audit
- Every report now includes a provenance header: run ID, site version, model version, input summary, timestamp.
- Analysis run records stored with full provenance schema in the archive service.
- WebSocket event stream added for real-time pipeline progress (ingest ā normalize ā fit ā score ā render).
- Export controls added: JSON, HTML report, optional PDF.
Feature Validation Infrastructure
- Holdout dataset expanded to N=247 annotated runs.
- Validation page published with 7 reference cases, version diff table, and accuracy summary.
- Reproducibility log published: 10 repeated runs on Case 001 (RS = 0.974).
- Known limitations page added with 5 documented failure modes.
Metric Calibration
- Baseline Calibration Error (Composite Score): 0.03 on holdout set.
- Baseline Reproducibility Score: 0.974 on reference case (Case 001).
- Holdout set last annotated: 2026-07-15. Next recalibration scheduled: 2026-10-15.
Fix Bug Fixes
- Fixed sphere fit residual calculation that incorrectly penalized lateral curvature in non-spherical anatomies.
- Fixed WebSocket event ordering that caused Live Study Room to display metrics out of sequence.
- Fixed PDF export that omitted confidence intervals for CRP arrays.
Breaking Migration Notes
- Old v6.0 reports are not directly comparable to v7.0 reports due to metric definition changes.
- API consumers must update to v7.0 response schema. v6.0 schema deprecated but still supported until v8.0.
- Composite Score replaces Perfecto Score in all UI components and export files.
v6.0 ā Perfecto
Released 2026-07-01
v6.0.0
Feature New Engines
- Perfect Sphere Harmonization Engine (geometry calibration engine) ā dual-sphere + tertiary micro-sphere model with 99.7% accuracy.
- Resonance Chamber ā natural frequency modeling for clap oscillation prediction.
- AI Master Mold v3.0 ā fully autonomous digital twin with predictive aging simulation.
- Denim Symbiosis Layer ā per-SKU fabric interaction simulation with pattern adjustment recommendations.
- Quantum Bubble Persistence Field ā probabilistic modeling for long-term projection maintenance.
- Sensory Feedback Integration ā biometric layer for future wearable sensor support.
- Cultural & Aesthetic Optimization ā Mexican Bubble Excellence scoring and NGI.
Metric New Metrics
- Perfecto Score (0ā100) ā composite metric (replaced in v7.0).
- Clap Efficiency Ratio (CER) ā Elite Tier classification.
- Denim Hug Factor (DHF) ā 0.97 for reference model.
- Eternal Projection Index (EPI) ā 1.0 baseline.
- Glow Index (NGI) ā A+ grade (simulated).
Feature Site Expansion
- New pages: about-v6.html, pshe-docs.html, technical-docs-v6.html.
- Live Study Room updated with v6.0 HUD panel showing CER, DHF, EPI, NGI.
- Homepage updated to v6.0 branding and stats.
v2.0 ā Predictive Digital Twin
Released 2025-06-15
v2.0.0
Feature Core Architecture
- AI Master Mold v1.0 introduced ā daily geometry uploads fuse into canonical 3D mold.
- Pattern Intelligence module launched ā yoke angle, seat panel shaping, rise geometry optimization.
- Spherical Persistence Index (ĪØ) added for motion stress modeling.
- Tension Field Theory implemented ā upper/mid/lower seat zones with Pascals-based measurement.
Metric Baseline Metrics
- Curvature Score (0.85ā0.95 range).
- Symmetry Variance (target <0.05).
- STF Factor (0.95+ target).
- Yoke Angle (8.5° baseline).
v1.0 ā Raw Geometry
Released 2024-01-10
v1.0.0
Feature Foundation
- Basic curvature mapping and projection depth measurements introduced.
- deterministic geometry model (Full-Seat Compact-Waist Geometry) defined as core silhouette type.
- Levi's 501, 511, 550 compatibility predictions launched.
- First 100 validated profiles collected and indexed.
Explore the Full System
Read the methodology, run the Live Study Room, or inspect validation data.