webpack changelog

Changelog History

Page 3

• v5.0.0-rc.5 Changes

  October 09, 2020

  🛠 Bugfixes

  • 🛠 fix crash in getNumberOfMatchingSizeTypes
  • 🛠 fix crash in SideEffectsFlagPlugin
  • 🛠 fix crash when using runtimeChunk and Module Federation shared
  • ➕ add some missing type exports

  Migration

  • 👌 improve Node.js polyfill message

• v5.0.0-rc.4 Changes

  October 07, 2020

  🔋 Features

  • optimization.sideEffects will detect simple cases of modules without side effects from the source code now
    • supported: class and function declarations, variable declarations with pure init expression, if, while, for, switch, export, import, function calls with pure flag
  • ➕ added a "transitive only" side effects mode which drops the module but keeps dependencies
    • This is useful for mini-css-extract-plugin to allow droping the extracted JS, while keeping the CSS dependencies

  🛠 Bugfixes

  • accessing properties of the prototype from imported modules is now possible. They are no longer incorrectly mangled.

  Dependencies

  • ⚡️ update schema-utils to major 3
  • ⚡️ update acorn to major 8

• v5.0.0-rc.3 Changes

  September 30, 2020

  🛠 Bugfixes

  • delete x.y.z now also works in concatenated modules
  • 👍 folder and file names containing # are now supported

• v5.0.0-rc.2 Changes

  September 29, 2020

  🔋 Features

  • [Stats] do not display loader prefix for modules in bold
  • 🍱 [Stats] improve grouping by path for modules and assets
  • ➕ add optimization.splitChunks.defaultSizeTypes to specify size types considered for sizes when only a number is specified
    • this allows plugins to add default size types

  🛠 Bugfixes

  • 🍱 [Stats] fix some space calculation issues for assets and modules space limit
  • [Stats] fix filtered item count
  • ✂ remove error when watch option is used without callback and show a deprecation message instead.

• v5.0.0-rc.1 Changes

  September 28, 2020

  💥 Breaking Changes

  • 0️⃣ uses target: "browserslist" as default when a browserslist config has been found, otherwise fallback to target: "web" as usual
    • This could have unexpected changed to the EcmaScript version of the generated code
    • In same cases this might causes builds to fail because browserslist contain web and node versions
    • In most cases we expect this to simplify migration while still allowing to generate better code
    • This partially reverts a breaking change: Instead of changing the generated code from ES5 to ES6, this now changes it from ES5 to an automatic version depending on browserslist when available

  🔋 Features

  • ➕ add support for target: "browserslist" and more advanced options
  • 🔦 expose more classes as needed by plugins
  • ➕ add Compiler.watching
  • ➕ add parser.worker for javascript files to allow to modify which syntax is special for WebWorker support
  • 👍 allow output.chunkFilename to be a function via schema
  • 👍 allow RegExp for watchOptions.ignored via schema
  • ➕ add resolve.preferRelative option, which allows to resolve module requests also as relative requests

  Migration

  • ➕ add more hints regarding breaking changes in config
  • 👌 improve deprecation layer for Array -> Set to allow accessing the first index
  • 👍 allow to use splitChunks name to move modules to an parent chunk

  🛠 Bugfixes

  • avoid some errors in dependencies when target module failed
  • when min(Remaingin)Size is violated, use only modules that are fine, instead of failing for all modules
  • 🛠 fix infinite recursion when having a circular symlink and a context containing it
  • ⚠ warning for importing an disposed module displays the correct module
  • 🛠 fix too wide hash for javascript chunks that caused unnecessary invalidation of the rendered files
  • 🛠 fix new URL("relative/file.png", import.meta.url) to resolve relative
  • ⚡️ update webpack-sources to fix crash with source "." is not in SourceMap
  • 🛠 fix stack overflow in resolving

• v5.0.0-rc.0 Changes

  September 20, 2020

  Full Changelog

  Known Problems

  • delete x.y.z doesn't work with optimization.concatenateModules: true yet.
  • 🔌 mini-css-extract-plugin is not fully compatible and there a few problems.
  • 0️⃣ html-webpack-plugin doesn't understand the new default automatic publicPath yet. Use output.publicPath: "" instead.
  • 💻 target doesn't support individual browser versions yet. Use the general targets for now: target: ["web", "es2020"]
  • The stable webpack-cli shows too verbose output for schema validation problems.
  • new URL with string not starting with ./ or ../ works incorrectly
  • The stats grouping algorithm need still some fine-tuning

• v5.0.0-beta.33 Changes

  September 20, 2020

  🔄 Changes

  • 🗄 deprecate stats.warningsFilter in favor of ignoreWarnings
    • We need to filter warnings earlier and not only for display, e. g. for correct ignoring in hasWarnings()

  🛠 Bugfixes

  • 🛠 fix missing fileDependencies for managed items

• v5.0.0-beta.32 Changes

  September 18, 2020

  🔋 Features

  • 🍱 sort assets by size
  • ⚡️ update all dependencies to stable versions only
  • 0️⃣ output.publicPath is now "auto" by default when supported by target
  • ➕ add output.publicPath: "auto" to determine publicPath automatically

  🛠 Bugfixes

  • avoid error for managed paths that only contain a node_modules

• v5.0.0-beta.31 Changes

  September 17, 2020

  🔋 Features

  • 🔨 refactor module concatenation to be more flexible
    • support non-namespace exports
    • allow to concatenate externals
    • allow to concatenate json modules
  • ➕ add a breaking change hint when modules can't be resolve because requests are expected to be fully specified
  • ➕ add support for imports field in package.json
  • ➕ add resolve.fallback option and recommend that for polyfilling

  🛠 Bugfixes

  • 🛠 fixes parsing of this when in an arrow IIFE
  • 🛠 fix caching in RealContentHashPlugin when assets contain their own hash
  • 🛠 fix chunk group connections for cases where referenced chunk group is sometimes already included
  • [Module Federation] fix circular references of containers when using async externals
    • fixes a hanging promise
  • [Module Federation] fix circular dependencies of modules between containers
    • fixes another hanging promise
  • [Module Federation] fix crash when no sharing is used in the container at all

  🐎 Performance

  • 👌 improve performance of deprecated needRebuild method

  🗄 Deprecations

  • 🗄 officially deprecate needRebuild in favor of needBuild

• v5.0.0-beta.30 Changes

  September 11, 2020

  Highlights

  • 🚀 There will be a Release Candidate soon
    • See #11406 for a list of outstanding items
  • new URL("...", import.meta.url) is treated as dependency and creates an asset module
  • 👷 Worker support
    • new Worker(new URL("...", import.meta.url)) creates a WebWorker (same for new SharedWorker)
    • known issue: type: "module" doesn't work yet
    • navigator.serviceWorker.register(new URL("...", import.meta.url)) creates a ServiceWorker
  • 👌 Improved target
    • target option allows versions, e. g. target: "node10.13" or target: "es2020"
    • target allows an array of targets, e. g. target: ["web", "es2020"]

  🔋 Features

  • Stats improvements
    • Group assets and modules in stats text output by default to keep within space limit
    • asset modules are enabled by default (type: "asset")
    • Put name, version, time, errors/warnings and hash in a single line as summary in the stats
  • 👷 Use output.wasmLoading (and output.workerWasmLoading) to specify the wasm loading method (similar to output.chunkLoading)
  • 🆕 New option externalsPreset with presets for externals for
    • node
    • nwjs (deprecated)
    • electronMain
    • electronPreload
    • electronRenderer
    • web
    • webAsync
    • defaults choosen based on targets
  • 0️⃣ mjs experiment is enabled by default
    • .mjs and .js with type: "module" in package.json puts ESM in strict mode
    • no CommonJs allowed
    • extensions are required in imports
    • no named exports of non-esm modules
    • no __esModule support (will be added once this landed in node.js)
    • .cjs and .js with type: "commonjs" in package.json disables ESM support
    • .wasm with type: "module" in package.json also makes extensions required in wasm imports
  • output.ecmaVersion is replaced with output.environment which lists features used by webpack

  🔄 Changes

  • Stats improvements
    • Hide hash by default in stats
    • Hide entrypoints in stats by default when unnecessary
    • Show only files count in entrypoints when there are too many files
    • Hide auxiliary files for entrypoints in stats by default

  🛠 Bugfixes

  • 👌 improve ASI handling to avoid Object(...) wrapping
  • 🛠 fix incorrect disposing of modules when a whole chunk is removed during Hot Module Replacement

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