- Deprecate Storefront MCP cart tools (get_cart, update_cart) and replace them with UCP Cart MCP tools (create_cart, get_cart, update_cart, cancel_cart) at the /api/ucp/mcp endpoint.
- Require a meta object with ucp-agent.profile on every request and an idempotency-key for cancel_cart; update_cart now uses full PUT semantics.
- Migrate before August 31 2026, updating endpoints and request schemas per the new Cart MCP documentation.
Storefront MCP cart tools are being deprecated in favour of UCP Cart MCP
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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.