Breaking Changes

• uses target: "browserslist" as default when a browserslist config has been found, otherwise fallback to target: "web" as usual
  • This could have unexpected changed to the EcmaScript version of the generated code
  • In same cases this might causes builds to fail because browserslist contain web and node versions
  • In most cases we expect this to simplify migration while still allowing to generate better code
    • This partially reverts a breaking change: Instead of changing the generated code from ES5 to ES6, this now changes it from ES5 to an automatic version depending on browserslist when available

Features

• add support for target: "browserslist" and more advanced options
• expose more classes as needed by plugins
• add Compiler.watching
• add parser.worker for javascript files to allow to modify which syntax is special for WebWorker support
• allow output.chunkFilename to be a function via schema
• allow RegExp for watchOptions.ignored via schema
• add resolve.preferRelative option, which allows to resolve module requests also as relative requests

Migration

• add more hints regarding breaking changes in config
• improve deprecation layer for Array -> Set to allow accessing the first index
• allow to use splitChunks name to move modules to an parent chunk

Bugfixes

• avoid some errors in dependencies when target module failed
• when min(Remaingin)Size is violated, use only modules that are fine, instead of failing for all modules
• fix infinite recursion when having a circular symlink and a context containing it
• warning for importing an disposed module displays the correct module
• fix too wide hash for javascript chunks that caused unnecessary invalidation of the rendered files
• fix new URL("relative/file.png", import.meta.url) to resolve relative
• update webpack-sources to fix crash with source "." is not in SourceMap
• fix stack overflow in resolving