COMPATIBILITY_NOTES_6.10.1

Compatibility Notes - Moira 6.10.1

Upgrade boundary

Moira 6.10.1 follows 6.10.0. Python 3.10 through 3.14 remain supported, and all 6.10.0 Vedic, astronomical, and small-body (2026.10.10.1) contracts remain in effect.

Additive runtime truth and REST surfaces

• Additive *_with_truth Python facade functions: Existing functions (jd_from_datetime, datetime_from_jd, delta_t_from_jd, utc_to_ut1, utc_to_tt, local_sidereal_time, ecliptic_to_equatorial, equatorial_to_horizontal, true_obliquity, planet_relative_to, true_lilith, ayanamsa, nakshatra_of, all_nakshatras_at, tropical_to_sidereal, sidereal_to_tropical, classify_chart_shape) preserve their return types while paired *_with_truth functions return immutable ComputationTruth-bearing vessels.
• Additive REST computation_truth fields: Core chart, position, sky, house, sidereal, nakshatra, chart-wheel, phenomena, station, solar-condition, void-of-course, and relationship responses include additive computation_truth receipts. Strict clients that forbid unknown response keys should allow computation_truth.
• Observer coordinate pairing on POST /v1/chart and POST /v1/positions/planet: Supplying only one of latitude / longitude (or observer_lat / observer_lon) is rejected with HTTP 422 rather than silently dropping the partial observer coordinate.
• Natal Discovery REST endpoints: POST /v1/natal-discovery/dispositor-chains, POST /v1/natal-discovery/jones-shape, and POST /v1/natal-discovery/lunar-context are new additive /v1 operations.