After updated the webpack devServer package of my project from "webpack-dev-server": "3.11.2" to "webpack-dev-server": "4.3.0" I'm facing this issue when I start my project:

>> npm run start

> [email protected] start

> webpack serve --config webpack.dev.js



[webpack-cli] Invalid options object. Dev Server has been initialized using an options object that does not match the API schema.

 - options has an unknown property 'writeToDisk'. These properties are valid:

   object { allowedHosts?, bonjour?, client?, compress?, devMiddleware?, headers?, historyApiFallback?, host?, hot?, http2?, https?, ipc?, liveReload?, magicHtml?, onAfterSetupMiddleware?, onBeforeSetupMiddleware?, onListening?, open?, port?, proxy?, setupExitSignals?, static?, watchFiles?, webSocketServer? }

The changelog seems not to be updated and I've found only a couple of new options: More info here

How can I convert this "old" configuration file to the new one?

And if possible, where can I find the new configuration options?

webpack.dev.js:

const {merge} = require('webpack-merge');

const common = require('./webpack.common.js');

const path = require('path');

module.exports = merge(common, {

  mode: 'development',

  devtool: 'inline-source-map',

  devServer: {

    contentBase:  path.join(__dirname, './dist'),

    compress: true,

    watchContentBase: true,

    historyApiFallback: true,

    https: false,

    open: 'Firefox Developer Edition',

    stats: {

      colors: true,

    },

    port: 9002,

    proxy: {

      '/api': 'http://localhost:9000'

    },

    writeToDisk: true,

  },

});

Thank you for your help