4.0.0-rc.0 (2020-02-19)

Bug Fixes

• respect output.path and output.publicPath options from the configuration
• respect the stats option from the configuration
• respect the watchOptions option from the configuration
• the writeToDisk option now correctly works in multi-compiler mode
• the outputFileSystem option now correctly works in multi-compiler mode
• respect [hash]/[fullhash] in output.path and output.publicPath
• handle exceptions for filesystem operations
• the Content-Type header doesn't have charset=utf-8 value for custom MIME types and MIME types which can be non utf-8

Features

• validate options
• migrate on the webpack logger
• migrate on the memfs package
• improve performance

BREAKING CHANGES

• minimum supported Node.js version is 10.13.0
• the default value of the option publicPath is taken from the value of the output.publicPath option from the configuration (webpack.config.js)
• the stats option was removed, the default value of the stats option is taken from the value of the stats option from the configuration (webpack.config.js)
• the watchOptions was removed, the default value of the watchOptions option is taken from the value of the watchOptions option from the configuration (webpack.config.js)
• the Content-Type header doesn't have charset=utf-8 value for custom MIME types and MIME types which can be non utf-8
• the fs option was renamed to the outputFileSystem option
• the lazy option was removed without replacement
• the logger, logLevel and logTime options were removed without replacement. You can setup the level value using { infrastructureLogging: { level: 'warn' } }, please read https://webpack.js.org/configuration/other-options/#infrastructurelogging. You can use the infrastructurelog (infrastructureLog in webpack@5) hook to customize logs. The log property in the middleware context was renamed to logger
• the mimeTypes option first requires you to specify an extension and then a content-type - { mimeTypes: { phtml: 'text/html' } }
• the force option from the mimeTypes option was removed without replacement
• the reporter option was removed without replacement
• the getFilenameFromUrl method was removed from the API
• the middleware locals now under res.locals.webpack - use res.locals.webpack.stats for access stats and res.locals.webpack.outputFileSystem to access outputFileSystem