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The Polaris CDN is adopting semantic versioning

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Polaris Web Components loaded from the Shopify CDN are moving to semantic versioning. Most apps will continue receiving compatible improvements automatically, while developers can choose when to adopt breaking changes. Existing apps don’t need to take immediate action.

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Also shipped Aug 31, 2026Shopify in August 2026 →

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Polaris CDN 1.1 release candidate

Polaris Web Components loaded from the Shopify CDN are moving to semantic versioning, read more about that change here . You can test out the Polaris CDN 1.1 release candidate by updating the URL you load polaris from to this: New components EmptyState . For empty lists, tables, and pages.

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Hydrogen developer preview update: September 2, 2026

The Hydrogen developer preview adds new capabilities to the toolkit and extends the ways developers can build Shopify storefronts: Variant links: Links that name a variant, like the ones Shopify submits to a Google Shopping feed, now open on that variant instead of the product's default.

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More resilient refreshes for expiring offline access tokens

Expiring offline access token refreshes now retain the previously used refresh token until an app begins using its replacement. This rollout helps apps recover when a refresh response is lost or isn’t persisted. No migration is required, but apps should continue to store every refreshed token pair atomically.

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Shopify storefronts now support UCP 2026-08-25

Shopify storefronts now advertise support for Universal Commerce Protocol (UCP) version 2026-08-25 in their discovery profiles at /.well-known/ucp . This update adds compatibility with the 2026-08-25 protocol release and doesn’t require any changes to your existing integrations.

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Four additional topics are now available for Events

Apps can now subscribe to events for Metaobject , MetafieldDefinition , MetaobjectDefinition , and InventoryTransfer . Apps can also subscribe to targeted metafield changes on InventoryTransfer . By subscribing to these topics, your app can react directly to changes in custom content, custom data definitions, and inventory transfer workflows.

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Build Shopify apps in PHP and Python with new official packages

Shopify releases official PHP and Python app packages Shopify now publishes official, open-source packages for building apps in PHP and Python. shopify/shopify-app-php on Packagist and shopifyapp on PyPI have reached version 1.0 . They provide framework-agnostic primitives for request verification, token exchange, and Admin GraphQL requests.

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