@babel/runtime-corejs2

:bug: Bug Fix

• babel-plugin-transform-modules-commonjs, babel-plugin-transform-regenerator, babel-plugin-transform-runtime, babel-preset-env, babel-runtime-corejs2

  • Add ".js" extension to injected polyfill imports (@shimataro)

• babel-cli

  • babel --watch should have equivalent file selection logic with babel (@JLHwung)

• babel-parser

  • Use scope flags to check arguments (@JLHwung)

  • Allow tuple rest trailing comma (@yeonjuan)

  • Correctly disambiguate / after async fuctions (@nicolo-ribaudo)

• babel-parser, babel-plugin-proposal-optional-chaining, babel-plugin-transform-modules-amd

  • fix(optional chaining): Optional delete returns true with nullish base (@mpaarating)

• babel-helper-module-transforms, babel-plugin-transform-modules-amd

  • fix: rewriteBindingInitVisitor should skip on scopable node (@JLHwung)

:nail_care: Polish

• babel-plugin-transform-runtime

  • Do not transpile typeof helper with itself in babel/runtime (@nicolo-ribaudo)

• babel-core

  • refactor: Improve error message in @babel/core (@jaroslav-kubicek)

:house: Internal

• babel-preset-env-standalone

  • Bundle standalone using rollup (@JLHwung)

• Other

  • Tune makefile scripts (@JLHwung)

• babel-helper-transform-fixture-test-runner

  • Incorrect trace position in fixture runner (@JLHwung)