Action Required: Developers currently using the BOOMR variables for theme identification and customization should begin transitioning to window.Shopify.theme properties.
Summary extracted from the official source text. Verify details on the source page.
| Platform | Shopify |
|---|---|
| Effective date | No date published |
| Precision | n/a |
| Published | 2024-10-28 |
| Categories | DeprecationBreaking / action required |
| Tags | Action Required, Deprecation announcement, Liquid, Themes |
| Official source | Shopify developer changelog ↗ |
| Fetched | 2026-10-17T03:44:00+00:00 |
| First seen | 2026-10-17T01:05:46+00:00 |
| Status | Listed by the source |
| Stable ID | shopify-a0a2c33376 · JSON |