- Inventory errors are moved from userErrors to a new `warnings` field on all cart mutations.
- Warnings provide explicit codes (MERCHANDISE_NOT_ENOUGH_STOCK, MERCHANDISE_OUT_OF_STOCK) and a target field for easy item removal or adjustment.
- Developers can now programmatically manage out‑of‑stock items using these warnings.
Cart Warnings in Storefront API Cart
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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.