Destiny v2.2.0

[2.2.0] - 2026-08-26

This section describes the 2.2.0 source candidate. It becomes a published
GitHub Release only after the matching v2.2.0 tag workflow succeeds.

Added

• Added an opt-in incremental research path with strict long-form point-in-time
  controls and hashed controls catalogs.
• Added paired ridge models on identical rows and folds: M0 uses all declared
  controls, while M2 adds every preregistered astronomy feature under the same
  alpha grid and fit budget.
• Added Newey-West HAC inference, circular moving-block bootstrap, and a full
  M2-pipeline joint circular-shift placebo over the declared cyclic group.
• Added conservative union-null max-p aggregation and Bonferroni family
  adjustment, with explicit limits on what the local runner can certify.
• Added validator-clean controls/hypothesis templates and a complete synthetic
  end-to-end incremental demo generator.

Dependencies

• NumPy is now a direct, exact-pinned research/all dependency because the
  incremental contract directly relies on float64 arrays and numpy.linalg.
  Python-specific pins keep resolution explicit; the core install is unchanged.

Compatibility and evidence boundary

• With incremental_model absent or exactly { "enabled": false }, the legacy
  univariate path and result schema remain 1.0.0.
• Enabled incremental hypotheses require hypothesis schema 2.0.0, both
  controls inputs, and emit research result schema 2.0.0. Core result schema
  remains 2.0.0; astronomy schema remains 1.0.0.
• A positive loss differential or adjusted threshold diagnostic does not change
  the evidence label. This release never emits CONFIRMATORY_PASS and does not
  claim causality, a complete financial baseline, stable alpha, or live-trading
  readiness.