Bump webpack-dev-server and @symfony/webpack-encore

[dependabot]

Removes webpack-dev-server. It's no longer used after updating ancestor dependency @symfony/webpack-encore. These dependencies need to be updated together.

Removes webpack-dev-server

Updates @symfony/webpack-encore from 1.8.2 to 7.1.0

Release notes

Sourced from @​symfony/webpack-encore's releases.

7.1.0 - The "Wait, We Forgot Some Things" Release

[!NOTE] A small follow-up to 7.0.0: a few dependency updates didn't make it into that release, so 7.1.0 ships them now. You get support for sass-loader v17 (v16 still works), @vue/babel-plugin-jsx bumped to v3, webpack-manifest-plugin requiring at least v6.0.1, and JS/CSS minifier peer dependencies relaxed to optional with no version constraint. No upgrade steps needed for most projects, just bump and go.

What's Changed

• Update @vue/babel-plugin-jsx from ^1.0.0 to ^3.0.0 by @​Kocal in symfony/webpack-encore#1497
• Update webpack-manifest-plugin to 6.0.1 by @​Kocal in symfony/webpack-encore#1495
• Relax the peerDependencies of the JS/CSS minifiers by @​Kocal in symfony/webpack-encore#1498
• Add support for sass-loader ^17.0.0 by @​Kocal in symfony/webpack-encore#1499
• Tweak CHANGELOG.md for StimulusBundle & ESM by @​Kocal in symfony/webpack-encore#1500

Full Changelog: symfony/webpack-encore@v7.0.0...v7.1.0

---

Thanks to everyone who contributed to this release! 🙌

Update Encore in your project:

npm install @symfony/webpack-encore@latest --save-dev
pnpm add --save-dev @symfony/webpack-encore@latest
yarn add --dev @symfony/webpack-encore@latest

7.0.0 - The ESM-Only & Async-first Release

[!IMPORTANT] Webpack Encore 7.0 is a big one: the config format moves to ESM (and Encore.getWebpackConfig() is now async), Babel 8 is required, and JS/CSS minification are unified under a single plugin.

Under the hood, the project itself got a proper refresh too, with Vitest replacing Mocha/Sinon/Chai, PNPM as the package manager, and Oxfmt handling formatting.

It's a breaking change release, but the end result is a cleaner, more modern Encore that's much better aligned with today's JS ecosystem.

See the upgrade guide before upgrading.

What's Changed

• Migrate to ESM & async API by @​Kocal in symfony/webpack-encore#1402
• Migrate from Mocha/Sinon/Chai to Vitest by @​Kocal in symfony/webpack-encore#1404
• Switch from Yarn to PNPM by @​Kocal in symfony/webpack-encore#1405
• Update webpack-cli support to include version 7.0.0 by @​Kocal in symfony/webpack-encore#1406
• Tweak ESLint by @​Kocal in symfony/webpack-encore#1407
• Leverage code formatting from ESLint to Oxfmt by @​Kocal in symfony/webpack-encore#1408
• Use ESM exports in copy-files-loader for better webpack optimizations by @​Kocal in symfony/webpack-encore#1410
• Exclude PULL_REQUEST_TEMPLATE.md from Oxfmt configuration by @​Kocal in symfony/webpack-encore#1416
• [CI] Remove low/high-deps jobs, add Dependabot, rework chunk reference in tests, E2E test lowest bounds by @​Kocal in symfony/webpack-encore#1415
• Avoid using deprecated Sass imports in tests by @​stof in symfony/webpack-encore#1412
• Add support for typescript 6 by @​stof in symfony/webpack-encore#1411
• Add testing app for lowest peers with TypeScript 5 and Babel preset by @​Kocal in symfony/webpack-encore#1423
• Ensure Node.js 26 is supported by @​Kocal in symfony/webpack-encore#1421
• Bump tmp up from 0.2.5 (CVE-2026-44705) by @​frykten in symfony/webpack-encore#1434

... (truncated)

Changelog

Sourced from @​symfony/webpack-encore's changelog.

7.1.0

• Add support for sass-loader ^17.0.0
• Add support for @vue/babel-plugin-jsx to ^3.0.0, remove support for @vue/babel-plugin-jsx to ^1.0.0
• Update the minimum version of webpack-manifest-plugin to ^6.0.1
• Declare the JS/CSS minifiers as optional peer dependencies without a version constraint, matching minimizer-webpack-plugin behavior

7.0.0

This is a new major version that contains several backwards-compatibility breaks.

BC Breaks

• Migrate from CJS (CommonJS) to ESM (ES Modules)
• Migrate synchronous API to asynchronous API
• Drop support of Babel 7 in favor of Babel 8
• Remove Encore.configureTerserPlugin() in favor of Encore.configureJsMinimizerPlugin()

Features

• Add support for webpack-cli ^7.0.0
• Add support for typescript ^6.0.0
• Add support for Node.js` ^26.0.0
• Add support of Babel 8
• Use ESM exports in Encore.copyFiles() for better webpack optimizations
• Use peerDependencies instead of devDependencies for optional dependencies checking
• Replace css-minimizer-webpack-plugin and terser-webpack-plugin by minimizer-webpack-plugin to unify the minification process

See the upgrade guide for the full list of breaking changes and upgrade steps.

6.0.0

This is a new major version that contains several backwards-compatibility breaks, but for the best!

BC Breaks

• Remove support of Node.js <22.13.0
• Remove support of babel-loader@^9.1.3, see possible BC breaks in 10.0.0 release notes
• Remove support of style-loader@^3.3.0, see possible BC breaks in 4.0.0 release notes
• Remove support of less-loader@^11.0.0, see possible BC breaks in 12.0.0 release notes
• Remove support of postcss-loader@^7.0.0, see possible BC breaks in 8.0.0 release notes
• Remove support of stylus-loader@^7.0.0, see possible BC breaks in 8.0.0 release notes
• Remove support of webpack-cli@^5.0.0, see possible BC breaks in 6.0.0 release notes
• Remove unmaintained file-loader dependency The [N] placeholder (regex capture groups in filename patterns) is no longer supported. If you were using patterns like [1] or [2] in your Encore.copyFiles() filename option, you will need to restructure your file organization or use a different naming strategy.
• Remove deprecated --https flag and devServerConfig.https option for webpack-dev-server, use --server-type https or configureDevServerOptions() with server: 'https' instead

Features

... (truncated)

Upgrade guide

Sourced from @​symfony/webpack-encore's upgrade guide.

Upgrading

7.0.0

[!IMPORTANT] v7.0.0 is ESM-only, Encore.getWebpackConfig() is now async, Babel 8 is required, and CSS minification is no longer enabled by default. These are real breaking changes, so please follow the steps below.

The Node.js ecosystem has largely moved to ESM as the standard module format. Most actively maintained packages now ship ESM-only, and since Encore already requires Node.js ^22.13.0 || >=24.0 (which has full ESM support), continuing to publish as CJS would mean fighting the ecosystem: pinning to older dependencies, adding workarounds, and missing out on tree-shaking and static analysis.

Moving to ESM also unlocks async/await in Encore's internals. Now that getWebpackConfig() is natively async, Encore can adopt modern async APIs from the ecosystem without hacks.

• Migrate from CommonJS to ESM: the package now requires "type": "module" in your project or the use of .mjs file extensions. Update your webpack.config.js:

  // Before (CJS)
  const Encore = require('@symfony/webpack-encore');
  // ...
  module.exports = Encore.getWebpackConfig();
  // After (ESM)
  import Encore from '@​symfony/webpack-encore';
  // ...
  export default await Encore.getWebpackConfig();

  Note: Encore.getWebpackConfig() is now async and returns a Promise. Use await at the top level of your webpack config (webpack supports async config files natively).

• If you prefer not to add "type": "module", rename your webpack config to webpack.config.mjs instead; webpack detects the .mjs extension and treats it as ESM automatically.

• Replace __dirname and __filename with their ESM equivalents in your webpack config:

  // Before (CJS)
  path.resolve(__dirname, 'src/utilities/');
  config: [__filename];
  // After (ESM)
  path.resolve(import.meta.dirname, 'src/utilities/');
  config: [import.meta.filename];

... (truncated)

Commits

• c1850cc Tagging 7.1.0
• 6b47b11 Name release
• bc9a789 minor #1500 Tweak CHANGELOG.md for StimulusBundle & ESM (Kocal)
• 5f9268d Tweak CHANGELOG.md for StimulusBundle & ESM
• 5ff162f feature #1499 Add support for sass-loader ^17.0.0 (Kocal)
• 93b97aa Add support for sass-loader ^17.0.0
• d58ed97 feature #1498 Relax the peerDependencies of the JS/CSS minifiers (Kocal)
• 0ab1c5f Relax the peerDependencies of the JS/CSS minifiers
• 3026e9a feature #1495 Update webpack-manifest-plugin to 6.0.1 (Kocal)
• 289cee3 Update webpack-manifest-plugin to 6.0.1
• Additional commits viewable in compare view

Maintainer changes

This version was pushed to npm by kocal, a new releaser for @​symfony/webpack-encore since your current version.