Bugfixes

• Windows network paths are considered as absolute paths
• fix hanging of FlagDependencyExportsPlugin when using export * in a circular matter

Bugfixes

• handle relative paths with webpack:// prefix in SourceMaps correctly
• fixes a non-determinism about providedExports with export * which caused changing module hashes and unnecessary HMR invalidation

Bugfixes

• fix case where __webpack_require__.e is not a function when using module concatenation
• fix incorrect imported module when using sideEffects in a certain constellation of export names

Performance

• lazy-require Webassembly related modules for improved startup performance

Security

• force upgrade terser-webpack-plugin dependency for security fix (not affecting webpack)

Funding

• add npm funding field to package.json

Bugfixes

• fix issue with invalide timezone

Bugfixes

• fix incorrect request shortening when directory looks similar to parent directory
• fix crash when timezone is unknown

Developer Experience

• disallow cache group named test with shorthand syntax to point out a potential config error

Performance

• Improve performance of LimitChunkCountPlugin

Bugfixes

• fix a bug that the HMR plugin affected child compilations

Performance

• improve performance of splitChunks name option by caching hashed value
• improve rebuild performance by caching module size computation

Bugfixes

• fix a bug where asset is undefined

Bugfixes

• convert "multiple assets emit to the same filename" error into a warning
• compare asset content when multiple assets emit to the same filename

Features

• adds asset info for emitted assets
  • new methods allow easy emitting/updating of assets compilation.emitAsset/updateAsset (instead of accessing the Object compilation.assets)
  • new getter methods to get assets compilation.getAssets() and compilation.getAsset(name)
  • 3 flags in asset info:
    • immutable: when set an asset can be cache infinitely
    • development: when set an asset is some kind of development tool (i. e. a SourceMap)
    • hotModuleReplacement: when set an asset is generated for an hot update
  • Stats expose info object in assets
  • String version of Stats show flags

Bugfixes

• fix a missing module in chunk caused by incorrect chunk graph generation of async chunks

Bugfixes

• fix ProfilingPlugin not ending traces correctly

Bugfixes

• fix problem that progress lines were too long on some terminals
• fix a problem that ...100% is displayed instead of 100%

Features

• Infrastructure logger for node.js has now colors + symbols to mark different kind of messages
• Logger API has now a status method which allows to write temporary status messages
• ProgressPlugin default handler uses the Infrastructure Logger status message to output messages
• Placeholders in paths can now be escaped with i. e. [\id\]
• Compiler.hooks.assetEmitted have been added to get byte content of emitted assets

Bugfixes

• Logging output is now aligned to have space for symbols
• renamed Compiler.hooks.infrastructurelog to Compiler.hooks.infrastructureLog
• Properties that are defined on the Object.prototype can now be chunk ids (i. e. constructor)
• library.name now supports placeholders in libraryTarget: "system"
• 2 places were module profiles were incorrectly captured were fixed

Dependencies

• Forced upgrade of all direct dependencies
• webpack-sources + terser-webpack-plugin comes with quality optimizations for SourceMaps

Performance

• Improved performance of ProgressPlugin
• Improved performance of chunk graph generation
  • This can boost performance when many chunks are used, especially incremental build performance
  • Modules from parent chunks are now tracked during chunk graph generation, which allows to skip these modules in async chunks. This often renders optimization.removeAvailableModules unneeded, expect in scenarios where chunks are merged during optimization.
• optimization.removeAvailableModules is now disabled in development mode by default
  • optimization.removeAvailableModules will be disabled for all modes in next major release, feel free to disable it in production too if you want extra performance.

Features

• add logging API (see https://github.com/webpack/webpack/pull/9436 for details)

Bugfixes

• fix regression in 4.36.0 when using happypack

Features

• SourceMapDevToolPlugin append option now supports the default placeholders in addition to [url]
• Arrays in resolve and parser options (Rule and Loader API) support backreferences with "..." when overriding options.

Bugfixes

• update acorn to include import()

Performance

• Improved runtime performance for large JSON modules