Features:

• Improved optimization bailout messages
• NamedModulesPlugins and HashedModuleIdsPlugin work now properly with delegated modules (DllReferencePlugin) and externals.
• add--config-name option to choose a config by name for compiling a part of the config
• Improved error message when parsing in ModuleConcatenationPlugin fails
• Upgrade a lot of dependencies
• Child compilation names are not relative in stats

Bugfixes:

• Fix setting boolean options in configuration (profile, bail)
• Fix "uncatched" exception in HMR runtime code
• Fix two cases where ModuleConcatenationPlugin crashes (missing internal name)
  • Concatating delegated modules (from Dlls)
  • reference to the default export of the root module
• Fix--module-bind-pre and--module-bind-post

Performance:

• Performance improvements in
  • SourceMapDevToolPlugin
  • AggressiveSplittingPlugin
  • NormalModule variable injection
  • Parser
  • RecordIdsPlugin
  • Stats