Automated testing for Shopify UI extensions with @shopify/ui-extensions-tester
UpdateUnverifiedAdded Sep 24, 2026
As of API version 2026-04, Shopify provides an official testing library for UI extensions. @shopify/ui-extensions-tester lets you write unit tests for extensions on any surface , Checkout, Admin, Customer Accounts, and POS , without a running Shopify host.
Topics: AI agents, SQL, Developer tools
More Shopify developer platform releases
Every Shopify developer platform release| Date | Release | Type |
|---|---|---|
| Apr 13 | New CSS variable for mobile safe area insetsunverified Update | Update |
| Apr 13 | DraftOrderLineItem.grams field removed in 2026-07unverified Update | Update |
| Apr 15 | Added MOST_RELEVANT value for `CollectionSortOrder`unverified Update | Update |
| Apr 15 | `ActionBar` removed on mobile: `TitleBar` primary action now renders as an icon buttonunverified Update | Update |
| Apr 15 | `LineItem.weight` field now available in public Admin APIunverified Update | Update |
| Apr 16 | mTLS client certificate renewal for Payments Appsunverified Update | Update |
| Apr 10 | New discount fields in the Storefront API's cart typesunverified Pricing | Pricing |
| Apr 17 | Add `includeInactive` argument to `inventoryLevels` and `inventoryLevel` fieldsunverified Update | Update |
Also shipped on Apr 13, 2026
Shopify in April 2026| Date | Company | Release | Product | Type |
|---|---|---|---|---|
| Apr 13 |  Google Cloud | Support for NVIDIA RTX PRO 6000 Blackwell GPU is in General Availability unverified | Cloud Run | GA |
| Apr 13 |  Cloudflare | Containers - Containers and Sandboxes are now generally availableunverified | Cloudflare developer platform | GA |
| Apr 13 |  Netlify | Netlify Database GA coming soon, no new databases for nowunverified | Netlify | GA |
| Apr 13 |  DuckDB | DuckDB v1.5.2 Bugfix Releaseunverified | DuckDB | Update |
| Apr 13 | Cloudflare | Containers, Agents - Secure credential injection and dynamic egress policies for Sandboxesunverified | Cloudflare developer platform | Update |
| Apr 13 | Cloudflare | Workers - Local Explorer for local resource dataunverified | Cloudflare developer platform | Update |
Sources: each vendor's own release notes, changelogs and GitHub releases, read daily to monthly by how often it posts. Logos via logo.dev; trademarks belong to their owners.