docs: document the webpack 5.110.0 configuration and API surface - #8337
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Adds performance.all, hints: "stats" and the opt-in checks introduced in webpack 5.110.0, plus an overview table grouping them by what they inspect and a note on which ones are not gated on hints. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Both conditions land in webpack 5.110.0: glob matches the resource OS-independently and is also accepted inside a Condition object, and descriptionRelativePath matches a module by its path inside its own package. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Covers externalsPresets.nodeModules and its allowlist, which replace the
webpack-node-externals plugin, plus the { external, sideEffects } value
form, both added in webpack 5.110.0. Also fills in the bun and deno
preset rows, which the table was missing.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
…resourceHints.dedupe and per-entry html Adds the [containedfile]/[containedpath] template placeholders, output.library.umdAmdContainer and output.resourceHints.dedupe from webpack 5.110.0, plus the entry descriptor's html option, which now accepts an object overriding output.html per entry. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
webpack 5.110.0 makes optimization.minimize accept an object that configures the built-in minimizer per asset type, and the default minimizer now handles CSS and HTML too. Documents the javascript, css and html option sets and when each minifier runs. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Also adds the deferImport and sourceImport environment flags to the output.environment listing, both added in webpack 5.110.0. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
…ooks The module variable reads back the CSS collected while rendering without a DOM, and MultiCompiler gained an aggregated shutdown hook plus a done hook that reports which compilers actually rebuilt. Both in 5.110.0. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Adds the renderEmbeddedSource and embeddedSourceHash compilation hooks, and updates the HTML HMR note: 5.110.0 patches the head in place instead of falling back to a full page reload. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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Resolves the overlap with #8339, which documented the same two options independently: - optimization.minimize: keeps main's version, and adds the three facts it was missing (the CSS/HTML minifiers only run with experiments.css / experiments.html and step aside for an already configured minimizer, the options configure the default minimizer only, and the javascript default is { compress: { passes: 2 } }). - entry descriptor html: drops this branch's separate 'HTML per entry' section in favour of main's paragraph, noting there that the object form arrived in 5.110.0. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
bjohansebas
marked this pull request as ready for review
August 28, 2026 03:32
The local prettier (3.8.3) reformatted two of main's inline block comments onto their own lines; the declared version (3.9.6), which CI installs, wants them inline, which is how they are committed on main. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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Documents the configuration and API surface added in webpack 5.110.0 (webpack/webpack#21545).
Everything here was checked against the schema and the implementation on
webpack@main, not against the changeset summaries.What is documented
configuration/performanceperformance.all,hints: "stats"and the 31 new opt-in checks, each with its default and its rationale, plus an overview table grouping them by what they inspect and a note on which ones are not gated onhintsconfiguration/moduleRule.glob(pattern syntax,!negation, use inside aConditionobject) andRule.descriptionRelativePathconfiguration/externalsexternalsPresets.nodeModulesand itsallowlist, which replacewebpack-node-externals, and the{ external, sideEffects }value form. Also fills in thebunanddenopreset rows the table was missingconfiguration/output[containedfile]/[containedpath]placeholders,output.library.umdAmdContainer,output.resourceHints.dedupe, and thedeferImport/sourceImportenvironment flagsconfiguration/optimizationoptimization.minimizeas an object:javascript,css(14 options) andhtml(18 options), with defaults and when each minifier runsconfiguration/entry-contexthtmloption, including the object form that overridesoutput.htmlper optionconfiguration/statsstats.hintsandstats.hintsCountapi/module-variables,api/node,api/compilation-hooks__webpack_css_server_styles__, the MultiCompiler hooks (shutdown, anddonereporting which compilers rebuilt),renderEmbeddedSourceandembeddedSourceHashconfiguration/experiments<head>is now patched in place on hot update instead of forcing a full reloadLeft out
Release items with no configuration surface: resolve errors suggesting the closest name, the CSS/HTML printer internals, CommonJS tree shaking, and the parser performance work. Those belong in the release blog post, which comes as a separate PR on top of this branch.
Notes
markdownlintandprettierpass; the 39 new internal links were checked to resolve to a real file and anchor.valewas not run locally.