@babel/runtime-corejs2

:eyeglasses: Spec Compliance

• babel-parser, babel-plugin-proposal-explicit-resource-management

  • Disallow using in bare case statement (@JLHwung)

:nail_care: Polish

• babel-parser

  • Improve parseExpression error messages (@JLHwung)

:microscope: Output optimization

• babel-helpers, babel-plugin-transform-async-generator-functions, babel-plugin-transform-async-to-generator, babel-plugin-transform-block-scoping, babel-plugin-transform-classes, babel-plugin-transform-destructuring, babel-plugin-transform-regenerator, babel-plugin-transform-runtime, babel-preset-env, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime

  • Reduce regenerator size more (@liuxingbaoyu)

• babel-helpers, babel-plugin-transform-async-generator-functions, babel-plugin-transform-async-to-generator, babel-plugin-transform-block-scoping, babel-plugin-transform-classes, babel-plugin-transform-destructuring, babel-plugin-transform-regenerator, babel-plugin-transform-runtime, babel-preset-env, babel-runtime-corejs3

  • Use shorter method names for regenerator context (@nicolo-ribaudo)

  • Reduce regenerator helper size (@liuxingbaoyu)

• babel-core, babel-helpers, babel-plugin-transform-async-generator-functions, babel-plugin-transform-async-to-generator, babel-plugin-transform-block-scoping, babel-plugin-transform-classes, babel-plugin-transform-destructuring, babel-plugin-transform-regenerator, babel-plugin-transform-runtime, babel-preset-env, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime, babel-standalone

  • Split regeneratorRuntime into multiple helpers (@nicolo-ribaudo)