v2.2.0 - AionPlus Release

Pontifex v2.2.0 (AionPlus) Release Notes

• AION Integration: Added calibrated neural deep-learning foundation expert (aion) alongside existing Mixture of Experts (gpz, bpz, fzboost, nn1, nn2, knn).
• Hyperparameter & Prior Optimization: Calibrated blending filters, cosmic priors, and mixture gating weights across all Cardinal and Flagship 1-year and 10-year challenge tasksets.
• Cross-Validation Benchmarks: Complete 5-fold cross-validation metrics across 16 datasets with comprehensive PDF performance table.
• Data Challenge Submissions: Updated submissions and verified CI across nz_data_challenge and pz_data_challenge.

v2.1.0 - Ascention Release

What's Changed in v2.1.0 (Ascention)

Major Enhancements

• Ascention Pipeline Parity (pontifex.core.features):
  • Synchronized feature extractor to produce full 49-dimensional vectors including wide-baseline colors (u-r, g-i, r-z, i-y, z-H).
  • Exact numerical and architectural parity with pre-trained Ascention challenge models.
• Stratified 5-Fold Out-Of-Fold (OOF) Calibration (pontifex.nz.runner):
  • Zero-leakage out-of-fold calibration measuring genuine adjacent-bin spillover.
• Documentation & ReadTheDocs:
  • Complete overhaul of tomography and n(z) docs detailing DIR SOM transfer reweighting, boundary entropy regularization, and correlated GP spatial sampling.
• DESC SRD Stage IV Compliance:
  • Confirmed 100% compliant across all benchmark tasksets (|delta mu| <= 0.00325, |delta sigma| <= 0.00880, kappa = 0.858).
• Test Suite:
  • All 21 unit and integration tests passing.