To Upgrade...
npm remove laravel-mix
npm install [email protected]
After upgrading, if you encounter any vue-template-compiler
issues, this is related to the fact that your installed version numbers of vue
and vue-template-compiler
must be identical. Update one or both to fix this issue.
New
- Faster compiles
- Faster
npm install
s.
- Upgraded to webpack 4
- Upgraded to vue-loader 15
- Upgraded to Babel 7
- Automatic vendor extraction. If you call
mix.extract()
with zero arguments, all vendor dependencies (any package from node_modules/
that you pull in) will automatically be extracted. Nifty!
- CSS minification (via cssnano) options may be provided 887808f8aea03b5dabc9e7350b66ee01a52e1610
- PostCSS plugins may be passed to mix.sass/less/stylus() on a per-call basis. This means you may provide unique PostCSS plugins for each
mix.sass()
call, if desired. 88690a2f770c071dc8160127c42a4f44decf2b56
- Switched JS optimizing/minification from Uglify to Terser. 5fb180e6e430e99b740a4bce330669cdd8fda29c
- Switched from node-sass to Dart Sass. While this comes with a small increased compile-time cost, the benefit is faster and more reliable
npm install
s. 320cecbdb77e222e32903219905d0d8f3754c5ff
- Improved Babel config merging strategy. You may now override or tweak any default Babel plugins and presets provided through Mix by creating a
.babelrc
file in your project root. 83f5052eb32c498a90edace47402d66eaf80f4b7
Bugfixes
- All
npm audit
alerts have been fixed, thanks to the upgrade to webpack 4.
Notes
- If your project heavily uses JavaScript dynamic imports, you may need to hold off until the release of webpack 5 early next year. There are known compile issues related to this that we cannot fix until then. Once webpack 5 is out, Mix will be updated shortly after. If you're unfamiliar with dynamic imports, then this very likely won't affect your project.
- Sass support is now an on-demand dependency. In prior versions of Mix, the
node-sass
and sass-loader
dependencies were included out of the box, regardless of whether your project required Sass compilation or not. To help improve install times, these two dependencies will now be installed on-demand if, and only if, your project specifies Sass compilation with mix.sass()
. The first time you run npm run dev
, the dependencies will be installed and saved to your dev-dependencies list. 5b7a438bcf53bc87ccc08da09b1e816a6088dec8
Breaking
Importing ES Modules
Important: As part of the vue-loader 15 updates, if your code uses the CommonJS syntax for importing EcmaScript modules, you'll need to append .default
, like so:
Before
Vue.component('example-component', require('./components/ExampleComponent.vue'));
After
// Option 1: Add .default
Vue.component('example-component', require('./components/ExampleComponent.vue').default);
// Option 2 (Recommended): Switch to EcmaScript imports.
import ExampleComponent from './components/ExampleComponent.vue';
Vue.component('example-component', ExampleComponent);
Babel 7 Updates
Important: Now that Mix has been updated to support Babel 7, you may need to address a few Babel-specific breaking changes. If your project pulls in extra Babel plugins that Mix does not provide out of the box, you'll need to update your local dependencies.
- The naming convention for official Babel plugins has changed. They are now scoped under the @babel namespace. As such, in your
package.json
file, change all occurrences of "babel-plugin-[name]": "6.x"
to "@babel/plugin-[name]": "7.x"
- If you've created a
.babelrc
file in your project, update all plugin name references. For example, update "plugins": ["babel-plugin-transform-object-rest-spread"]
to "plugins": ["@babel/plugin-proposal-object-rest-spread"]
Node Sass to Dart Sass
As part of our switch from node-sass
to dart-sass
, though support is largely identical, you may notice changes or warnings upon compilation. You may either address these one-by-one, or you can manually switch back to node-sass, like so:
npm install node-sass
mix.sass('resources/sass/app.sass', 'public/css', {
implementation: require('node-sass')
});
fastSass() and standaloneSass() Removed
mix.fastSass()
and mix.standaloneSass()
(aliases) have been removed entirely. In an effort to improve performance for those who only need to compile CSS, this command provided Sass compilation that was separate from the core webpack build. However, it seems to be more confusing than helpful to newcomers. Migrate by switching from mix.fastSass()
to mix.sass()
. 3e478043f7d6cfc73442b2971727d8595b6a559f
Before
mix.fastSass('resources/sass/app.scss', 'public/css');
After
mix.sass('resources/sass/app.scss', 'public/css');
Deprecated .mix
Property Removed
The deprecated mix
property has now been removed. If you have require('laravel-mix').mix
in your webpack.mix.js
file, change it to require('laravel-mix')
. 7dc010451870c0b23d8e22fe5d0fa67714d7df5f
Before
let mix = require('laravel-mix').mix;
After
let mix = require('laravel-mix');
Switching From Uglify to Terser
Due to the mandatory switch from Uglify to Terser, if your project was overriding our default config with Config.uglify = {}
, you'll need to switch to Config.terser = {}
. The options API is largely the same.
Before
// webpack.mix.js
mix.options({
uglify: {
uglifyOptions: {
warnings: true
}
}
});
After
mix.options({
terser: {
terserOptions: {
warnings: true
}
}
});
Vue Component Sass Preprocessing
If your project does not include a mix.sass()
call (which automatically downloads all necessary dependencies), but does specify lang="sass"
in your Vue components, you may need to install either node-sass
or sass
. Because Mix doesn't know which preprocessors you specify in your Vue components, you'll need to manually pull them in. Fix it with npm install node-sass sass-loader
or npm install sass sass-loader
. Please note that the same is true for Less and Stylus.
Source code(tar.gz)
Source code(zip)