v5.0.0-alpha.23

(based on 4.39.3)

Features

• add option output.ecmaVersion to specify level of generated code emitted by webpack
  • By using arrow functions we can emit smaller code, i. e. for exports
  • By using const variables we can emit more correct code for export default

Changes

• (BREAKING) changed default of output.ecmaVersion from implict 5 to 2015
  • This might be incompatible with some older browser.
  • If you need support for these browser use output.ecmaVersion: 5.

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