- Shopify will stop setting the `_ab` cookie on storefronts and checkout as of August 18 2025.
- The cookie was only used to control the theme preview bar; hide the bar now via the `pb=0` URL parameter.
- Custom code that reads the `_ab` cookie will need to be updated or removed.
The `_ab` cookie will no longer be set
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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.