Release v0.25.0 · insin/nwb

Breaking Changes

Node.js 8 is no longer supported; Node.js 10.13.0 is now the minimum required version, as per many of nwb's dependencies.

Browser Support

Removed default polyfills for Promise, fetch() and Object.assign() and deprecated polyfill config.

If you need to support older browsers, you will now need to include the necessary polyfills in your app - see the new Browser Support docs for details on polyfilling and suggested modules which provide them.

If this change affects your app, a quick fix is to use react-app-polyfill's IE11 polyfill, which is equivalent to what nwb's default polyfill used to be:
```
import 'react-app-polyfill/ie11'
```
For apps and quick commands, @babel/preset-env is now configured to only transpile the necessary ECMAScript 2015+ for supported browsers.

When running a development server, this defaults to the most recent version of Chrome, Firefox or Safari, so you may need to adjust browsers.development config if you're using an out of date browser and you will need to adjust it if you're developing with an older browser supported by your app.
Default browser configuration for Autoprefixer when building an app has changed from >1%, last 4 versions, Firefox ESR, not ie < 9 to >0.2%, not dead, not op_mini all.

When running a development server, the default browser configuration has changed to last 1 chrome version, last 1 firefox version, last 1 safari version.

Configuration

Deprecated using a string for webpack.autoprefixer config to configure supported browsers - this will no longer do anything and should be moved to the new browsers config.
Removed support for babel.stage and webpack.uglify config deprecated in nwb v0.24.0.
copy-webpack-plugin v6.0.0 has breaking changes to its options which you should read if you're using webpack.copy config.

In particular, the ignore option in a copy pattern must now be put inside the new globOptions option.

Dependencies

file-loader v6.0.0 changed its default hashing algorithm so hashes in output filenames will change after updating to this release, even if their contents haven't changed.

Added top-level browsers config to configure supported browsers. This supports using separate browserslist queries for development and production.
Added Browser Support docs, with a section on polyfilling missing language features.