Request a bundle size exception for existing UI extensions
UpdateUnverifiedAdded Sep 24, 2026
UI extensions using API version 2025-10 or later are limited to a 64 KB compressed JavaScript bundle per extension. Full page customer account extensions may use up to 128 KB. If your extension remains over the limit after optimization, run shopify app build and submit the minified bundle and its esbuild metafile through the bundle size exception form .
Topics: Developer tools
More Shopify developer platform releases
Every Shopify developer platform release| Date | Release | Type |
|---|---|---|
| Sep 17 | Adding a canceled receive action to the inventory shipments APIunverified Update | Update |
| Sep 17 | Removed session.currentSession.staffMemberId from POS UI Extensions (2026-10)unverified Update | Update |
| Sep 17 | Query market hierarchies with the GraphQL Admin APIunverified Update | Update |
| Sep 17 | New Pricing audit trail for contextual product variant pricesunverified Pricing | Pricing |
| Sep 18 | The `automaticDiscounts` query is removed in API version 2027-01unverified Update | Update |
| Sep 16 | Updates to Events payloads and subscription configurationunverified Update | Update |
| Sep 15 | Filter Catalog search results by media typeunverified Update | Update |
| Sep 15 | Dynamic complexity cost for `metafieldsSet` mutationunverified Update | Update |
Also shipped on Sep 17, 2026
Shopify in September 2026
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