- ProductVariant now implements the Publishable interface, enabling per‑publication publish/unpublish via API version 2026-07.
- Admin GraphQL publishablePublish and publishableUnpublish accept ProductVariant IDs; variants default to published but can be created unpublished using productSet or productVariantBulkCreate.
- Product feed webhooks now emit variant add/delete events, and variant publication state can be read via ProductVariant.resourcePublicationsV2.