Commerce platform change briefing archive

Published issues

Week ofSep 7, 2026

3 reviewed changes · through Sep 13, 2026

What commerce operators should check this week

CustomerAddressInput and CustomerAddress gain a countryCode field taking ISO 3166-1 alpha-2 values (US, CA) across the Customer Account API and Checkout UI surfaces, effective September 8, 2026. The existing territoryCode field is deprecated in API version 2026-10 but keeps working with no removal deadline announced. Apps adopting 2026-10 should switch address reads/writes to countryCode and retest address flows.

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Week ofAug 31, 2026

1 reviewed changes · through Sep 6, 2026

What commerce operators should check this week

Shopify is replacing Storefront MCP get_cart and update_cart with UCP Cart MCP tools and will maintain the deprecated tools only through August 31, 2026.

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Week ofAug 24, 2026

1 reviewed changes · through Aug 30, 2026

What commerce operators should check this week

Shopify is replacing Storefront MCP get_cart and update_cart with UCP Cart MCP tools and will maintain the deprecated tools only through August 31, 2026.

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Week ofAug 17, 2026

1 reviewed changes · through Aug 23, 2026

What commerce operators should check this week

Shopify is replacing Storefront MCP get_cart and update_cart with UCP Cart MCP tools and will maintain the deprecated tools only through August 31, 2026.

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