ETLantic 0.21.0

[0.21.0] - 2026-07-20

Added

• Cohesive CLI journey: init, doctor, profile validate/show/diff/migrate
• Durable workspace defaults (.etlantic/reports, .etlantic/artifacts) with --ephemeral escape hatch
• Optional etlantic.toml project config with profiles/ fallback
• Structured profile assets (json://path and {provider, location} objects)
• plan diff and human plan explain --format human
• report list; cross-invocation report show/export from file store
• Global CLI options: --verbose, --quiet, --color, --non-interactive, --workspace
• Documented exit code taxonomy; mutation preamble via --preview
• Library modules: etlantic.workspace, etlantic.project, etlantic.bindings
• Docs: What's New 0.21, Migration 0.20→0.21, Exit gate 0.21, Best Practices, Documentation Audit 0.21

Changed

• Official package versions align at 0.21.0; plugins require etlantic>=0.21.0,<0.22
• Legacy profile JSON bindings fail closed unless --accept-legacy-bindings
• Production profile metadata uses strict extension namespaces by default
• FileReportStore exported from etlantic.reports
• CLI refactored into shared CliContext with unified output helpers
• Docs golden path converges on etlantic init; in-memory demo renamed to examples/memory_customers.py
• Public agent CLI list includes init, doctor, and profile

Fixed

• SECURITY / SUPPORT version banners and plugin-minor troubleshooting advice
• Evaluator / Production Readiness / Security residual-risk narrative consistency
• README CLI default profile (development) and docs build link to AGENTS.md

Deprecated

• reliability plan-diff in favor of plan diff

Migration

• See docs/11_DEVELOPMENT/MIGRATION_0_20_TO_0_21.md