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webpack v5.0.0-beta.17 Release Notes

Release Date: 2020-06-03 // almost 4 years ago

  • Known Problems

    • 🚀 The transitive move-file dependency requires node >= 10.17, while webpack is intended to be >= 10.13 compatible. This temporary increases the min node version for this beta release until we found a solution to that.
      • Fixed, latest patch releases are >= 10.13 compatible

    🔋 Features

    • Using module in an ESM no longer needs the whole namespace object
    • 0️⃣ SideEffects flag can follow reexports that are partially dynamic or use a compat default
    • 👍 export * uses more exports info data for better exports
    • 0️⃣ dynamic export * no longer flags the default export as maybe provided
    • 👍 allow module concatenation even when provided exports are unknown, but used exports are known
    • ➕ add promise external, which is like var but awaits the global value in a async module
    • ➕ add import external, which uses import() to load a native ESM
    • ➕ add output.importFunctionName to change the import() to something else, e.g. to a polyfill.
    • ✂ remove some unneeded dependencies
    • Module Federation
      • removed scope shortcut object config for container plugins (BREAKING)
      • add ability to pass advanced options to container plugins
      • allow to expose an array of modules (similar to entry)
      • allow to provide an array of remote locations (they act as fallback)
      • await when a promise is returned by the external
      • allow to expose an index module which is used when using the remote without subpath
      • change exposed keys to be prefixed with ./ (BREAKING)
      • automatically inferred keys do no longer omit leading non-word chars
      • add version handling to shared modules (see #10960 for details, BREAKING)

    🛠 Bugfixes

    • 0️⃣ export default no longer converts function declarations to expressions
    • inline external type can also provided when using an array external.
    • 🛠 fixed a bug in snapshotting that caused changes to be ignored during watching
    • ➕ add missing dependency for correct typings
    • Persistent Caching
      • DllPlugin related classes are now serializable
      • Dates are serializable

    🔄 Changes

    • 🔀 merged all asset processing hooks into a new hook processAssets with stages
    • 🗄 Modifications to compilation.asset after sealing are deprecated