ETLantic 0.29.0

[0.29.0] - 2026-07-28

Added

• Medallantic M1 native authoring: MedallionPipeline, MedallionBuilder, Bronze / Silver / Gold
• Declarative medallion documents and stable MDL1xx construction/graph diagnostics
• medallantic.migrate.sparkforge migration namespace (shared lowering with native path)
• Facade conformance kit: etlantic.testing.run_facade_conformance_suite
• Definition extension-bag validation on codec write; namespaced facade extensions copied onto plans
• etlantic.extensions.facade_provenance helper
• What's New / Migration / Exit Gate 0.29 documentation

Changed

• Official package versions align at 0.29.0; plugins require etlantic>=0.29.0,<0.30
• Medallantic IR adapter reuses shared lower_document path
• Facade packages documents the shipped conformance kit
• Plugin lifecycle allowlists accept engine/entry short names consistently with trust filtering
• Discovery APIs expose last_diagnostics when trust blocks loads

Fixed

• Medallantic LoweringError / AdapterError codes now match the primary ERROR diagnostic
• Native MedallionDocument.from_dict preserves explicit 0.0 accept rates
• Unknown medallion layers fail closed (MDL107) instead of coercing to gold
• Validation policies are unique per pipeline name + schema (no same-schema clobber)
• Document metadata and step description/tags survive definition extensions
• SparkForge IR cycle detection handles "step.result" source references
• etlantic_sparkforge submodule imports (adapt / ir / compat / reports / runtime_map)