Product and UX changes are at /updates. This page tracks model retrains and architecture changes only.
The version currently stamped into every published probability is 1.0.0. Each row links to its full release notes.
Version
Date
Summary
Brier at release
Notes
1.0.0current
2026-05-24
Initial published version. Calibrated ensemble of FIFA-Elo (Model 1), Dixon-Coles (Model 2), and hierarchical Bayesian Poisson (Model 3), with per-class isotonic calibration split across friendly / qualifier / tournament tiers. Per-player anytime-scorer (Model 5) on top of the Model 4 composite rating, with the Model 4b goalkeeper rating and the Model 18 starting-GK defence offset on the predict path.