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Automatic CSS subsetting for `{% stylesheet %}` tags

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Shopify·4 months ago · Apr 23, 2026, 04:00 PMFeatureMay break your integrationAI-assisted summary

Summary

Introduces automatic CSS subsetting for {% stylesheet %} tags, delivering only the CSS needed for rendered sections, blocks, and snippets
Improves storefront performance by reducing CSS payload on each page load
Themes with cross‑file CSS dependencies may lose styles; ensure CSS is self‑contained or update per the new docs

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