json-schema-migrate

Migrates JSON Schema between drafts: draft-04 to draft-07, draft-2019-09, or draft-2020-12. Current stable version is 2.0.0. Maintained as part of the Ajv validator ecosystem. Key differentiators: supports multiple target drafts, handles draft-04-specific patterns like boolean exclusiveMinimum, single-value enum to const, and empty/not schemas. Release cadence is low; updates are infrequent. Alternatives include manual schema transformation or using Ajv's own migration utilities, but this package provides a dedicated, focused tool.