Tax summary webhook `created_at` field now returns UTC timezone
UpdateUnverifiedAdded Sep 24, 2026
What's new The created_at field from tax_summaries/create webhook for tax partners will now return timestamps in UTC format with the Z suffix, including millisecond precision. Action required Update your parsing logic to handle the new format.
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Every Shopify developer platform release| Date | Release | Type |
|---|---|---|
| Nov 22 | Tax summary webhook and calculation requests now includes shop and presentment currency amountunverified Update | Update |
| Nov 17 | Shopify Dev MCP now supports POS UI extensionsunverified Update | Update |
| Nov 13 | New Google Cloud Run deployment tutorial releasedunverified Update | Update |
| Nov 10 | Protected customer data scopes required for web pixel PII access starting on December 10thunverified Update | Update |
| Dec 2 | InventoryItem.variant field deprecated in favor of InventoryItem.variants connectionunverified Deprecation | Deprecation |
| Dec 5 | Order editing new validations and handled `userErrors`unverified Update | Update |
| Nov 5 | tax_summaries/create webhook and taxSummaryCreate mutation now availableunverified Update | Update |
| Nov 4 | Carrier Service API now includes order totals and customer tagsunverified Update | Update |
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|---|---|---|---|---|
| Nov 20 |  Okta | Auth0 for AI Agents is generally availableunverified | Auth0 | GA |
| Nov 20 |  Modal | Modal 1.2.3unverified | Modal | Update |
| Nov 20 |  Cloudflare | Cloudflare Fundamentals, Terraform - Terraform v5.13.0 now availableunverified | Cloudflare developer platform | Update |
| Nov 20 |  Netlify | Angular v21 is now supportedunverified | Netlify | Update |
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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.