Shopify's API 2025-07 Sunset Silently Shifts Apps to 2025-10 Without Errors
Shopify will retire API version 2025-07 on July 16, 2026 at 15:00 UTC, but apps still pinned to that version will not receive errors — instead, requests will silently fall forward and be served by the next stable version, 2025-10. This means integrations continue returning HTTP 200 responses while actually operating under a different API schema that was never tested against. Key breaking changes between the two versions include a widened union type for StoreCreditAccount.owner, deprecation of ProductVariant.taxCode tied to AvaTax's retirement, and a structural shift from InventoryItem.variant to a variants connection. Shopify does signal the version change via the X-Shopify-API-Version response header, but most clients only inspect the JSON body and miss this indicator entirely. Developers are advised to actively compare the requested and returned API version headers to detect fall-forward behavior before silent data drift causes downstream issues.
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