docs(experiments): document CSS scope hoisting and @value in URLs (5.107)#8244
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…107) Webpack 5.107 brings two additions to the experiments.css feature set: - Scope hoisting (module concatenation) now applies to CSS Modules with exportType "text", "css-style-sheet", "style", or "link", reducing runtime overhead in CSS-heavy bundles when optimization.concatenateModules is enabled. - @value identifiers can be used as the path argument to @import and inside url() references, so shared paths/assets are defined once and reused. Both quoted and bare forms are accepted and resolved through webpack's normal asset pipeline. Adds two bullets to the existing experimental features list in experiments.css. Refs: - webpack/webpack#20851 (scope hoisting) - webpack/webpack#20925 (@value in URLs)
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alexander-akait
approved these changes
May 18, 2026
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Summary
Webpack 5.107 brings two additions to the
experiments.cssfeature set:exportTypeoftext,css-style-sheet,style, orlink, reducing runtime overhead in CSS-heavy bundles whenoptimization.concatenateModulesis enabled.@valueidentifiers can be used as the path argument to@importand insideurl()references, so shared paths/assets are defined once and reused. Both quoted ("./x",'./x') and bare (./x) forms are accepted and resolved through webpack's normal asset pipeline.Adds two bullets to the existing experimental features list in
experiments.css.Refs:
@valueidentifiers as@importURLs and insideurl()webpack#20925 (@value in URLs)Test plan
Use of AI
Drafted with Claude under human review. The contributor verified each change against the upstream webpack PR before commit.