ETLantic 0.30.0

[0.30.0] - 2026-07-28

Added

• Provisional etlantic.quality/1 portable quality-expression AST + JSON Schema
• etlantic.quality helpers: serialize/fingerprint, ContractModel mapping, analyze, evaluate, make_quality_gate
• Plan metadata for quality gates (cost, capabilities, fallback evidence, validation_boundary)
• Plan-time fail-closed diagnostics PMPLAN420 / PMPLAN421 for unsupported required quality capabilities
• Portable quality conformance suite: etlantic.testing.run_quality_conformance_suite
• Polars / Pandas advertise portable quality rule capabilities
• Medallantic rule DSL (parse_rules_shorthand) and real quality-gate lowering (replaces MDL110 passthrough)
• Medallantic evaluate_accept_rates for layer threshold comparison
• What's New / Migration / Exit Gate 0.30 documentation

Changed

• Official package versions align at 0.30.0; plugins require etlantic>=0.30.0,<0.31
• Local stub registry advertises portable quality capabilities for plan-time negotiation
• Medallantic bronze steps with rules insert {name}__ingest + gate nodes
• Surface inventory marks etlantic.quality/1 provisional and adds quality lazy namespace

Fixed

• Quality gate factory resolves ContractModel port types and invalid-role rejected outputs
• Name-only custom_contract rules fail closed at evaluate time (no silent pass)
• Quality capability asserts run before native implementation selection so SQL/PySpark profiles emit PMPLAN420/421 instead of PMPLAN302
• Plan metadata recomputes quality fingerprints so embedded hashes cannot drift
• Optional required=False quality rules skip rejection while recording soft diagnostics
• Regex / range / length DSL evaluation no longer crashes the gate on bad inputs
• field_constraints_dict projects nullable, compare ops, and composite unique_fields
• Medallantic quality gates attach {step}__rejected sink Loads (invalid→sink wiring allowed)
• PySpark stops advertising invalid_row_separation without dataframe
• Surface / agent / capability / diagnostics catalogs reflect etlantic.quality for 0.30