Shopware 6.6 → 6.7 Migration: Complete Checklist and Update Pitfalls in 2026
Field report on Shopware 6.6 → 6.7 migration: Payment API breaking changes, admin overhaul Vue 3 + mt-* components, Vite manifest, OpenSearch 2.19. 8-step checklist and the silent pitfalls we encountered for real on several stores.