Clean-css is a popular and actively maintained CSS minification tool designed to optimize stylesheets for improved website performance. Comparing versions 4.0.0 and 4.0.1, the changes appear minimal but potentially important for specific use cases. Both versions share the same core functionality, offering robust CSS minification capabilities. Developers can expect consistent performance in reducing CSS file sizes, resulting in faster page load times and a better user experience.
Both versions list identical dependencies including source-map, browserify, http-proxy, jshint, nock, server-destroy, uglify-js, and vows, suggesting similar development and testing environments. The source-map allows developers to trace minified code back to its original source, aiding in debugging. The minifier supports various CSS features and optimizations, such as removing whitespace, shortening color codes, and merging similar rules.
The key difference lies in the release date and potentially associated bug fixes or minor improvements. Version 4.0.1 was released two days after 4.0.0, indicating a possible quick patch addressing issues discovered in the initial 4.0.0 release. While the specific nature of any fixes is not detailed in the provided data, developers relying on clean-css are generally advised to use the latest stable version to benefit from the most up-to-date reliability and performance enhancements. If there are unexpected problems moving to version 4.0.1 it can be useful to check the changelog in the github repository of clean-css.
All the vulnerabilities related to the version 4.0.1 of the package
Regular Expression Denial of Service in clean-css
Version of clean-css prior to 4.1.11 are vulnerable to Regular Expression Denial of Service (ReDoS). Untrusted input may cause catastrophic backtracking while matching regular expressions. This can cause the application to be unresponsive leading to Denial of Service.
Upgrade to version 4.1.11 or higher.
