- Bumped Storefront and Customer Account APIs to version 2026-01 (quarterly update).
- cartDiscountCodesUpdate mutation now requires the discountCodes argument, so custom discount code logic must be updated before upgrading.
- Refer to the updated API changelogs for additional changes that may affect your storefront.
Hydrogen January 2026 release
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admin.app.intent.link intents now open as a full‑page navigation instead of an overlay modal
Adds cart session attribution and cart attributes for richer checkout data.
Added the `shop_campaign_insights` schema to ShopifyQL, letting apps query campaign performance data using the existing `shopifyqlQuery` field with the `read_reports` scope.