v4.5.19

IMPORTANT NOTE: IE 11 has reached End-of-Life. The default browserslist query no longer includes IE 11 as a target.
If your project still has to support IE 11, you MUST manually add IE 11 to the last line of the .browserslistrc file in the project (or browserslist field in package.json)

🐛 Bug Fix

• @vue/babel-preset-app
  • [c7fa1cf] fix: always transpile syntaxes introduced in ES2020 or later, so that optional chaining and nullish coalescing syntaxes won't cause errors in webpack 4 and ESLint 6.
• @vue/cli-plugin-typescript
  • [5b57792] fix: typechecking with Vue 2.7, fixes #7213