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Changelog

lightningcss

An extremely fast CSS parser, transformer, bundler, and minifier written in Rust.

7.7k300RustMPL-2.0

build-toolcompilercssminifierparserrust

Last updated 7 days ago

Jan 20, 2026

Features

Sep 29, 2025

Fix installing on android
Don't warn on ::grammar-error and ::spelling-error selectors
[Update browser compat data](https://github.com/parcel-bundler/lightningcss/commit/b21871589...

May 14, 2025

Fixed crash on process exit when lightningcss was loaded inside a Node.js worker thread on Linux

May 11, 2025

Update relative color parsing to latest spec: colors now support numbers in addition to percentages, and calcs in colors are now always numbers. Note that this was technically a breaking change in the spec. You may need to update code using relative color calculations on percentages to use numbers instead. See the PR for details. – #465
Update nesting implementation for new spe...

Mar 14, 2025

Support for ::details-content and ::target-text selectors – @philipp-spiess in https://github.com/parcel-bundler/lightningcss/pull/930
Update :placeholder-shown selector name across browsers – @Marukome0743 in https://github.com/parcel-bundler/lightningcss/pull/929
Support /* cssmodules-pure-no-check */ comments – @jantimon in https://github.com/parcel-bundler/lightningcss/pull/898...