Changelog and release notes for PulseGrid / EventLattice
v2.8.0featureLatest2026-03-13
Confidence Tier System & Accuracy Consolidation
Graduated confidence tiers (Insufficient/Preliminary/Reliable/Validated) replace the binary 14-day data-span cutoff, giving users a nuanced view of statistical reliability. Accuracy computation consolidated into a single shared helper, eliminating duplicate logic that caused the v2.7.5 inflation bug.
Confidence Tier System: instruments are classified into four tiers based on data span duration: Insufficient (< 14 days, accuracy suppressed), Preliminary (14-89 days), Reliable (90-179 days), Validated (180+ days)
Data-span progress indicators: visual progress bars scaled to 180 days with tier markers at 14-day and 90-day thresholds, plus days-to-next-tier countdown
Tier badges (INS/PRE/REL/VAL) displayed in Cross-Asset Validation instrument table, expanded asset class cards, and Accuracy Tracker per-instrument table
Consolidated computePerSymbolAccuracy() shared helper: single source of truth for per-symbol accuracy, data-span guard, severity breakdown, and confidence tier computation
Refactored getOverallMetrics and getAccuracyReport routers to use the shared helper, eliminating the duplicate logic that caused the original inflation bug
16 new unit tests covering confidence tier utilities, data-span guard integration, and edge cases
Automated accuracy monitoring: scheduled task checks overall accuracy and notifies via email when the model crosses the 60% threshold
Full codebase audit identified and fixed 12 locations where the -1 sentinel value for insufficient data was not properly handled, causing inflated accuracy in independent computation paths, exports, comparisons, and notifications.
v2.7.5fix2026-03-13
Data-Span Guard v3.3.1: Sector ETF Accuracy Fix
Fixed Sector ETFs (and all instruments) incorrectly showing 100% accuracy when data history was less than 14 days. The data-span guard is now applied consistently across all three accuracy computation services.
Automated daily/weekly pipeline digest emails, side-by-side signal vs. price accuracy comparison, and admin-editable alert thresholds stored in the database.
v2.7.3feature2026-03-13
Pipeline Alerts, Price Accuracy Trends & Weekend Gap Exclusion
Automated pipeline health alerts via notifyOwner, weekly price accuracy trend charts, and smart weekend gap exclusion for equity/index instruments.
v2.7.2feature2026-03-13
Data Quality Dashboard & Close Price Backfill
New Data Quality Dashboard for monitoring pipeline health, plus critical bug fix for close price persistence.