v4.0.0

• 💥 Rework the list of variants to have more modern defaults. The table below shows how to upgrade your v3 import to their equivalent v4 import. See the migration guide for more information. (#82, #139)
• 💥 Remove the ES2018 variant, in favor of the ES2015 variant.
• 💥 Switch to subpath exports for variants.
  • Node 12 or higher is required to import or require() a variant.
  • When using TypeScript, version 4.7 or higher is now required. Additionally, moduleResolution must be set to "node16", "nodenext" or "bundler".
• 🚀 Support importing as ESM in Node.
• 💅 Minify all code in the published package, to reduce the download size.
• 💅 Rework ReadableStream.from() implementation to avoid depending on async function* down-leveling for ES5. (#144)

v3 import	v4 import	description
web-streams-polyfill	web-streams-polyfill/polyfill/es5	ES5+ polyfill
web-streams-polyfill/es6	web-streams-polyfill/polyfill	ES2015+ polyfill
web-streams-polyfill/es2018	web-streams-polyfill/polyfill	ES2015+ polyfill
web-streams-polyfill/ponyfill	web-streams-polyfill/es5	ES5+ ponyfill
web-streams-polyfill/ponyfill/es6	web-streams-polyfill	ES2015+ ponyfill
web-streams-polyfill/ponyfill/es2018	web-streams-polyfill	ES2015+ ponyfill