## New and Updated

- Laravel Elixir source was completely rewritten in ES2015.
- Added mix.rollup() installable task. This is ideal for those hoping to write and bundle up ES2015 code.
- Added mix.webpack() installable task. Task will read any `webpack.config.js` file in your project root.
- Added mix.stylus() installable task.
- If using Webpack and `.vue` files, additionally pull in the `laravel-elixir-vue` extension.
- CSS Autoprefixing defaults to > 1% of browsers now.
- Improved console logging, including input/output paths and summaries for each executed task.
- To opt for minimal logging, run gulp --minimal
- `gulp watch` now triggers the whole suite immediately.
- `gulp tdd` now triggers the relevant suite immediately.
- Notifications may now be disabled.
```
elixir.config.notifications = false;
```
- CoffeeScript, Browersync, and Browserify tasks have been extracted to installable plugins, in order to clean up the dependency tree a bit. If you'd like to continue using these, reference them as usual in your Gulpfile. Upon running `gulp`, however, you'll receive a one-time installation command to run.
- Added an alias task for `mix.combine()`, called `mix.compress()`. This achieves the same end result, and is only offered for readability purposes. Should you need to minify a single CSS or JS file, consider using this task.
- When running `gulp --production`, Elixir will automatically set `NODE_ENV` to `production`. This means `export NODE_ENV=production && gulp --production` is now equivalent to `gulp --production`.
- The watch task now uses polling (`usePoll`) by default.


## New For Plugin Authors

- Added an `Elixir.inProduction` property, which is useful if you need to trigger logic only when the user has run `gulp --production`, such as for minification type work and such.
- Added a new `Elixir.isWatching()` method to determine if the user has triggered `gulp watch`. This can be useful for the times when a particular piece of logic should only be executed on watch.
- You may [register any number of hooks/event listeners](https://github.com/laravel/elixir/blob/master/src/bootstrap/SetHooks.js) to fire at specific times in the Laravel Elixir build.
- If you were requiring any Elixir-specific files/classes in your plugins, you'll want to ensure that your paths match up. Some files have been rearranged.
- To hook into the new console summary logging, you may add a call to `task.recordStep('Doing something')` within your main task.

## Fixes

- Many task dependencies are now lazy-loaded to improve general performance.
- `mix.copy()` now allows for copying to destination directories with dots in their name.
- Any Gulp-specific errors will now cause the task to exit with the proper code (`process.exit(1)`).
- Minification errors are now caught and logged properly.

## Breaking

- The third argument to mix.sass() and mix.less() is now a base directory.
- CSSNano was swapped out with CleanCSS to improve performance. If passing in plugin-specific options, refer here https://github.com/jakubpawlowicz/clean-css#how-to-use-clean-css-api for new options.
- `mix.rubySass()`, which was deprecated multiple releases ago, has finally been removed all-together. Instead, use `mix.sass()`.
- `mix.babel()` has been removed. Instead, consider using something like `mix.rollup()`.
- The undocumented option to create an `elixir.json` file in your project root has been removed.