---
title: Shopify now serves minified CSS files automatically - Shopify developer changelog
description: Shopify’s developer changelog documents all changes to Shopify’s platform. Find the latest news and learn about new platform opportunities.
source_url:
  html: https://shopify.dev/changelog/shopify-now-serves-minified-css-files-automatically
  md: https://shopify.dev/changelog/shopify-now-serves-minified-css-files-automatically.md
---

[Back to Developer changelog](https://shopify.dev/changelog)

May 10, 2021

Tags:

* Platform

# Shopify now serves minified CSS files automatically

As of May 2021, Shopify will automatically minify theme CSS when it is requested by the storefront. Minified CSS files are cached until the next time the underlying CSS file is updated.

Minification improves storefront performance, leading to a better buying experience for customers.

Learn more about performance and its benefits in the [Shopify Help Center](https://help.shopify.com/en/manual/online-store/store-speed/improving-speed).