Shopify

POS UI extensions now return percentage values for percentage discounts as a new breaking change in API version 2026-10. This is a newly added entry in the changelog that was not present in the previous version.

Three new changelog entries appeared in October 2026: cart mutations now reject unconfirmed writes in POS UI Extensions 2026-10 (breaking), a per-customer request limit was introduced for the Customer Account API, and app access scopes can now be downgraded from write to read via the Admin GraphQL API. Additionally, the version list gained a '2025-01' entry and '2026-10-01' was consolidated into '2026-10'.

Shopify's developer changelog page has been updated with several new entries, most notably adding 'New tax fields for return shipping fees in the GraphQL Admin API' and a '07.22 Meet the 2026 Shopify Build Award winners' blog post, along with a '07.15 Sign in with Shop opens to storefront apps' announcement and '07.07 The next generation of Shopify fulfillment is coming' post.

Shopify's changelog page has been updated with several new entries including a new API version label '2026-10-01' in the version selector, a new 'What's new in Polaris 2.0.0-rc.1' entry, and 'New Shop Campaigns metrics and dimensions in ShopifyQL API version 2026-10'. The overall diff reflects an incremental changelog page refresh rather than a single discrete API change.

Shopify's changelog page has been updated with two new October 2026 entries: 'Return policy profiles are now available in the GraphQL Admin API' and 'New APIs for buyer-requested order edits', added alongside the existing 2026-10 release items.

Shopify's October 2026 changelog adds multiple new features and breaking changes, including new Events/webhooks capabilities (Next Gen Events GA across 18 topics), new Admin GraphQL API fields and mutations, and several breaking changes such as removal of metafieldInteger collection condition in 2027-01, Tax webhook Global ID changes, and updated function syntax on the segment query language.

Shopify's changelog page has been updated to include new October 2026 entries, most notably the 2026-10 release notes and two new items: 'Inventory shipment webhooks include inventory transfer IDs' and 'Updated function syntax on the segment query language' (the latter marked as a breaking change). The diff primarily reflects the addition of October 2026 changelog entries to the existing changelog listing.

The Shopify changelog page has been updated to reflect the latest stable API version changing from '2026-07 Release candidate 2026-10' to '2026-10' as the current latest version. No individual API surface changes are introduced by this diff itself; the content is a changelog index page update.

Shopify's changelog page added a new entry: 'Shopify Flow: Flow Trigger Lifecycle Callback extensions now support relative url paths' (09.29) under the Tools surface. This is the only meaningful API-relevant addition between the two versions of the changelog page.

A new changelog entry dated 09.30 was added: 'Use app intents for your discount app' under the Platform surface. This is the only net-new item added between the two versions of the changelog page.

Three new changelog entries were added on September 29, 2026: 'More resilient token exchanges when migrating tokens without a user session' (Admin GraphQL API), 'Manage packed product dimensions with the Admin GraphQL API' (Admin GraphQL API), and 'Move existing subscriptions to Shopify App Pricing' (App store). All other entries remain unchanged.

Shopify's changelog page has been updated to include a new entry: 'Sidekick can now invoke app intents without tools' (09.28, Platform surface). All other existing changelog entries remain unchanged.

A new changelog entry '09.28 WebMCP support for checkout' was added to Shopify's platform changelog, indicating WebMCP (Web Model Context Protocol) support is now available for the checkout surface. This follows the earlier addition of WebMCP support for Liquid and Hydrogen storefronts (08.05).

A new changelog entry 'AI Toolkit skills have been consolidated to shopify' (marked as Action Required) was added on September 25, 2026. This entry was not present in the previous version of the changelog.

Two new entries appeared in Shopify's changelog: a new Admin GraphQL API type 'Shopify Payments Balance Transaction' now supports currency conversion (09.25), and a new 'Query SP Fee Details with the GraphQL Admin API' capability was added (09.23). The featured blog post also changed from the July 21 analytics announcement to a September 25 Dev Dashboard announcement.

A new breaking change was added on 09.23: setting `includeRestOfWorld` to `true` will return an error in API version 2027-01. This is a newly surfaced entry not present in the previous changelog snapshot.

Two new breaking changes were added to Shopify's changelog: (1) the Events subscription query complexity limit is changing to 100 points, and (2) the `marketCurrencySettingsUpdate` mutation is being removed from the Admin GraphQL API. Both are tagged as breaking changes effective around September 22, 2026.

Shopify's changelog page added a new entry: 'Unlimited private plans and target stores in Shopify App Pricing' (09.21) for the App store surface. This is the only net-new item added in this diff compared to the previous version.

A new translatable boolean field has been added to the Metafield GraphQL Object in the Admin GraphQL API (announced 09.21). This is the only net-new entry compared to the previous changelog snapshot.

The `automaticDiscounts` query is being removed in Admin GraphQL API version 2027-01. This is a breaking change announced on September 18, 2026.

A new changelog entry has been added on September 17, 2026: 'Request a bundle size exception for existing UI extensions' under Admin Extensions. This is the only net-new item compared to the previous version of the changelog page.

Several new entries appeared in Shopify's changelog on September 17, 2026, including new Admin GraphQL API capabilities (canceled receive action for inventory shipments API, market hierarchies query, pricing audit trail for contextual product variant prices) and a breaking change removing `session.currentSession.staffMemberId` from POS UI Extensions in version 2026-10.

A new changelog entry dated 09.16 was added: 'Updates to Events payloads and subscription configuration' marked as Action Required for Events & Webhooks. This is the only net-new item compared to the previous snapshot.

A new 'Catalog' surface/section has been added to Shopify's changelog navigation and API surfaces, along with a new changelog entry on 09.15 for filtering Catalog search results by media type.

Shopify's changelog page has been updated with several new entries dated September 15, 2026, including dynamic complexity cost for the metafieldsSet mutation, optional family_name for B2B orders in Payments Apps API, delivery option metafields in Functions input, and a new Polaris admin look preparation guide.

A new `paymentInstrumentSendAddEmail` mutation was added to the Admin GraphQL API (09.03) that emails customers a link to add a payment method for a subscription, order, or draft order.

A new changelog entry dated 09.10 was added: 'Discounts Allocator Function API developer preview has ended' (Action required, Admin GraphQL API). This is the only net-new item added to the changelog compared to the previous version.

A new changelog entry '09.09 Create and delete dev stores in Shopify CLI' has been added to the Shopify CLI surface, and 'Shopify CLI' has been added as a new category in the sidebar navigation filters.

Two new changelog entries appeared on September 8, 2026: variants now support multiple barcodes (action required) in the Admin GraphQL API, and Customer Address APIs now support countryCode with a deprecation notice on Checkout UI.

Shopify's changelog navigation added a new 'AGENTS' section with a 'UCP' surface, and a new entry dated September 4, 2026 announces that Shopify storefronts now support UCP (Unified Cart Protocol) as of 2026-08-25.