NewYour coding agent can read the release notes before it upgrades.Set up the MCP server →
npm · #3373 most downloaded on npm
Display resolution-dependent images using the image-set() function in CSS
Last release 2 days ago
02 Oct 2026
Release timing varies
gaps range from 2 weeks to 1.4 years
Nearly every release is documented
notes for 23 of 23 stable releases
Nothing withdrawn
no release was ever pulled
8 years old
23 releases · first in 2018
Correctly nest conditional rules inside @function instead of cloning the @function rule.
October 2, 2026
@function instead of cloning the @function rule.Ignore initial-value in @property
September 6, 2026
initial-value in @propertyimage-set() in @keyframesOne column per quarter.
Updated: Support for Node 20.19.0 or later (major).
January 14, 2026
20.19.0 or later (major).commonjs API. In supported Node versions require(esm) will work without needing to make code changes.@csstools/utilities to 3.0.0 (major)Updated: Support for Node v18+ (major).
August 3, 2024
@csstools/utilities to 2.0.0 (major)Reuse code with @csstools/utilities
February 19, 2024
@csstools/utilities_December 15, 2023_ - Fix type definitions
December 15, 2023
_September 18, 2023_ - Improve performance
September 18, 2023
Change license to MIT-0 (read more about this change in the blog post)
July 3, 2023
MIT-0 (read more about this change in the blog post)Reduce the amount of duplicate fallback CSS.
February 8, 2023
Improve types declaration in package.json
January 28, 2023
types declaration in package.jsonUpdated: Support for Node v14+ (major).
January 24, 2023
oninvalid plugin option to onInvalid to match other plugins with similar options (breaking)._July 8, 2022_ - Fix case insensitive matching.
July 8, 2022
Improved es module and commonjs compatibility
February 5, 2022
es module and commonjs compatibilityFix sourcemaps for image-set() function
January 31, 2022
image-set() functionRemoved Sourcemaps from package tarball.
January 2, 2022
Changed: now uses postcss-value-parser for parsing.
December 13, 2021
postcss-value-parser for parsing.image-set functions.url function is now always added around string values in image-set functions.Updated: postcss-value-parser to 6.0.1 (patch)
November 19, 2021
postcss-value-parser to 6.0.1 (patch)Added: Safeguards against postcss-values-parser potentially throwing an error.
November 18, 2021
Updated: Support for PostCS 8+ (major).
September 17, 2021
Updated: PostCSS Values Parser 2
September 18, 2018
Updated: Support for PostCSS 7+
September 17, 2018
Sort images by DPR and use the lowest as the default
May 7, 2018
_May 2, 2018_ - Initial version
May 2, 2018
Your coding agent can read these notes before it upgrades. Set up the MCP server →