greenkeeper[bot]
commented
6 years ago Version 4.0.0 just got published.
Update to this version instead 🚀
Release Notes
v4.0.0Big changes
- Environment
- Node.js 4 is no longer supported. Source Code was upgraded to a higher ecmascript version.
- Usage
- You have to choose (
modeor--mode) between two modes now: production or development- production enables all kind of optimizations to generate optimized bundles
- development enables comments and hint for development and enables the eval devtool
- production doesn't support watching, development is optimized for fast incremental rebuilds
- production also enables module concatenating (Scope Hoisting)
- You can configure this in detail with the flags in
optimization.*(build your custom mode) process.env.NODE_ENVare set to production or development (only in built code, not in config)- There is a hidden
nonemode which disables everything
- You have to choose (
- Syntax
import()always returns a namespace object. CommonJS modules are wrapped into the default export- This probably breaks your code, if you used to import CommonJs with
import()
- This probably breaks your code, if you used to import CommonJs with
- Configuration
- You no longer need to use these plugins:
NoEmitOnErrorsPlugin->optimization.noEmitOnErrors(on by default in production mode)ModuleConcatenationPlugin->optimization.concatenateModules(on by default in production mode)NamedModulesPlugin->optimization.namedModules(on by default in develoment mode)
CommonsChunkPluginwas removed ->optimization.splitChunks,optimization.runtimeChunk
- You no longer need to use these plugins:
- JSON
- webpack now handles JSON natively
- You may need to add
type: "javascript/auto"when transforming JSON via loader to JS - Just using JSON without loader should still work
- You may need to add
- allows to import JSON via ESM syntax
- unused exports elimination for JSON modules
- webpack now handles JSON natively
- Optimization
- Upgrade uglifyjs-webpack-plugin to v1
- ES15 support
- Upgrade uglifyjs-webpack-plugin to v1
Big features
- Modules
- webpack now supports these module types:
- javascript/auto: (The default one in webpack 3) Javascript module with all module systems enabled: CommonJS, AMD, ESM
- javascript/esm: EcmaScript modules, all other module system are not available
- javascript/dynamic: Only CommonJS and, EcmaScript modules are not available
- json: JSON data, it's available via require and import
- webassembly/experimental: WebAssembly modules (currently experimental)
javascript/esmhandles ESM more strictly compared tojavascript/auto:- Imported names need to exist on imported module
- Dynamic modules (non-esm, i. e. CommonJs) can only imported via
defaultimport, everything else (including namespace import) emit errors
- In
.mjsmodules arejavascript/esmby default - WebAssembly modules
- can import other modules (JS and WASM)
- Exports from WebAssembly modules are validated by ESM import
- You'll get a warning/error when trying to import a non-existing export from WASM
- can only be used in async chunks. They doesn't work in initial chunks (would be bad for web performance)
- Import modules using WASM via
import()
- Import modules using WASM via
- This is an experimental feature and subject of change
- webpack now supports these module types:
- Optimization
sideEffects: falseis now supported in package.jsonsideEffectsin package.json also supports glob expressions and arrays of glob expressions
- Instead of a JSONP function a JSONP array is used -> async script tag support, order no longer matter
- New
optimization.splitChunksoption was introduced
Details: https://gist.github.com/sokra/1522d586b8e5c0f5072d7565c2bee693 - Dead branches are now removed by webpack itself
- Before: Uglify removed the dead code
- Now: webpack removes the dead code (in some cases)
- This prevents crashing when
import()occur in a dead branch
- Syntax
webpackIncludeandwebpackExcludeare supported by the magic comment forimport(). They allow to filter files when using a dynamic expression.- Using
System.import()now emits a warning- You can disable the warning with
Rule.parser.system: true - You can disable
System.importwithRule.parser.system: false
- You can disable the warning with
- Configuration
- Resolving can now be configured with
module.rules[].resolve. It's merged with the global configuration. optimization.minimizehas been added to switch minimizing on/off- By default: on in production mode, off in development mode
optimization.minimizerhas been added to configurate minimizers and options
- Resolving can now be configured with
- Usage
- Some Plugin options are now validated
- CLI has been move to webpack-cli, you need to install
webpack-clito use the CLI - The ProgressPlugin (
--progress) now displays plugin names- At least for plugins migrated to the new plugin system
- Performance
- UglifyJs now caches and parallizes by default
- Multiple performance improvements, especially for faster incremental rebuilds
- performance improvement for RemoveParentModulesPlugin
- Stats
- Stats can display modules nested in concatenated modules
Features
- Configuration
- Module type is automatically choosen for mjs, json and wasm extensions. Other extensions need to be configured via
module.rules[].type - Incorrect
options.dependenciesconfigurations now throw error sideEffectscan be overriden via module.rulesoutput.hashFunctioncan now be a Constructor to a custom hash function- You can provide a non-cryto hash function for performance reasons
- add
output.globalObjectconfig option to allow to choose the global object reference in runtime exitCode
- Module type is automatically choosen for mjs, json and wasm extensions. Other extensions need to be configured via
- Runtime
- Error for chunk loading now includes more information and two new properties
typeandrequest.
- Error for chunk loading now includes more information and two new properties
- Devtool
- remove comment footer from SourceMaps and eval
- add support for
includetestandexcludeto the eval source map devtool plugin
- Performance
- webpacks AST can be passed directly from loader to webpack to avoid extra parsing
- Unused modules are no longer unnecessarly concatenated
- Add a ProfilingPlugin which write a (Chrome) profile file which includes timings of plugins
- Migrate to using
for ofinstead offorEach - Migrate to using
MapandSetinstead of Objects - Migrate to using
includesinstead ofindexOf - Replaced some RegExp with string methods
- Queue don't enqueues the same job twice
- Use faster md4 hash for hashing by default
- Optimization
- When using more than 25 exports mangled export names are shorter.
- script tags are no longer
text/javascriptandasyncas this are the default values (saves a few bytes) - The concatenated module now generates a bit less code
- constant replacements now don't need
__webpack_require__and argument is omitted
- Defaults
- webpack now looks for the
.wasm,.mjs,.jsand.jsonextensions in this order output.pathinfois now on by default in develoment mode- in-memory caching is now off by default in production
entrydefaults to./srcoutput.pathdefaults to./dist- Use
productiondefaults when omiting themodeoption
- webpack now looks for the
- Usage
- Add detailed progress reporting to SourceMapDevToolPlugin
- removed plugins now give a useful error message
- Stats
- Sizes are now shown in kiB instead of kB in Stats
- entrypoints are now shows by default in Stats
- chunks now display
<{parents}>>{children}<and={siblings}=in Stats - add
buildAttime to stats - stats json now includes the output path
- Syntax
- A resource query is supported in context
- Referencing entry point name in
import()now emits a error instead of a warning - Upgraded to acorn 5 and support ES 2018
- Plugins
doneis now an async hook
Bugfixes
- Generated comments no longer break on
*/ - webpack no longer modifies the passed options object
- Compiler "watch-run" hook now has the Compiler as first parameter
- add
output.chunkCallbackNameto the schema to allow configurating WebWorker template - Using
module.id/loadednow correctly bails out of Module Concatentation (Scope Hoisting) - OccurenceOrderPlugin now sorts modules in correct order (instead of reversed)
- timestamps for files are read from watcher when calling
Watching.invalidate - fix incorrect
-!behavior with post loaders - add
runandwatchRunhooks forMultiCompiler thisis now undefined in ESM- VariableDeclaration are correctly identified as
var,constorlet - Parser now parse the source code with the correct source type (module/script) when the module type
javascript/dynamicorjavascript/moduleis used. - don't crash on missing modules with
buildMetaof null - add
original-fsmodule for electron targets - HMRPlugin can be added to the Compiler outside of
plugins
Internal changes
- Replaced
plugincalls withtapcalls (new plugin system) - Migrated many deprecated plugins to new plugin system API
- added
buildMeta.exportsType: "default"for json modules - Remove unused methods from Parser (parserStringArray, parserCalculatedStringArray)
- Remove ability to clear BasicEvaluatedExpression and to have multiple types
- Buffer.from instead of new Buffer
- Avoid using forEach and use for of instead
- Use
neo-asyncinstead ofasync - Update tapable and enhanced-resolve dependencies to new major versions
- Use prettier
Removed features
- removed
module.loaders - removed
loaderContext.options - removed
Compilation.notCacheableflag - removed
NoErrorsPlugin - removed
Dependency.isEqualResource - removed
NewWatchingPlugin - removed
CommonsChunkPlugin
Breaking changes for plugins/loaders
- new plugin system
pluginmethod is backward-compatible- Plugins should use
Compiler.hooks.xxx.tap(<plugin name>, fn)now
- New major version of enhanced-resolve
- Templates for chunks may now generate multiple assets
Chunk.chunks/parents/blocksare no longer Arrays. A Set is used internally and there are methods to access it.Parser.scope.renamesandParser.scope.definitionsare no longer Objects/Arrays, but Map/Sets.- Parser uses
StackedSetMap(LevelDB-like datastructure) instead of Arrays Compiler.optionsis no longer set while applying plugins- Harmony Dependencies has changed because of refactoring
Dependency.getReference()may now return aweakproperty.Dependency.weakis now used by theDependencybase class and returned in the base impl ofgetReference()- Constructor arguments changed for all
Modules - Merged options into options object for
ContextModuleandresolveDependencies - Changed and renamed dependencies for `import()
- Moved
Compiler.resolversintoCompiler.resolverFactoryaccessible with plugins Dependency.isEqualResourcehas been replaced withDependency.getResourceIdentifier- Methods on
Templateare now static - A new RuntimeTemplate class has been added and
outputOptionsandrequestShortenerhas been moved to this class- Many methods has been updated to use the RuntimeTemplate instead
- We plan to move code which accesses the runtime to this new class
Module.metahas been replaced withModule.buildMetaModule.buildInfoandModule.factoryMetahave been added- Some properties of
Modulehave been moved into the new objects - added
loaderContext.rootContextwhich points to thecontextoptions. Loaders may use it to make stuff relative to the application root. - add
this.hotflag to loader context when HMR is enabled buildMeta.harmonyhas been replaced withbuildMeta.exportsType: "namespace- The chunk graph has changed:
- Before: Chunks were connected with parent-child-relationships.
- Now: ChunkGroups are connected with parent-child-relationships. ChunkGroups contain Chunks in order.
- Before: AsyncDependenciesBlocks reference a list of Chunks in order.
- Now: AsyncDependenciesBlocks reference a single ChunkGroup.
- file/contextTimestamps are Maps now
map/foreachChunks/Modules/Parentsmethods are now deprecated/removed- NormalModule accept options object in Constructor
- Added required generator argument for NormalModule
- Added
createGeneratorandgeneratorhooks for NormalModuleFactory to customize code generation - Allow to customize render manifest for Chunks via hooks
Commits
The new version differs by 838 commits.
213226e4.0.0fde0183Merge pull request #6081 from webpack/formating/prettierb6396e7update statsf32bd41fix linting5238159run prettier on existing code518d1e0replace js-beautify with prettier4c25bfb4.0.0-beta.3dd93716Merge pull request #6296 from shellscape/fix/hmr-before-node-stuff7a07901Merge pull request #6563 from webpack/performance/assign-depthc7eb895Merge pull request #6452 from webpack/update_acorn9179980Merge pull request #6551 from nveenjain/fix/templatemde52f323optimize performance of assignDepth6bf5df5Fixed template.md90ab23aMerge branch 'master' into fix/hmr-before-node-stuffb0949cbadd integration test for spread operator
There are 250 commits in total.
See the full diff
Version 3.11.0 of webpack was just published.
The version 3.11.0 is not covered by your current version range.
If you don’t accept this pull request, your project will work just like it did before. However, you might be missing out on a bunch of new features, fixes and/or performance improvements from the dependency update.
It might be worth looking into these changes and trying to get this project onto the latest version of webpack.
If you have a solid test suite and good coverage, a passing build is a strong indicator that you can take advantage of these changes directly by merging the proposed change into your project. If the build fails or you don’t have such unconditional trust in your tests, this branch is a great starting point for you to work on the update.
Commits
The new version differs by 62 commits.
f010546update examplesbc840ec3.11.09323ee6Merge pull request #6398 from addaleax/no-bindingc7cbc35Merge pull request #6430 from jbottigliero/update/ajv61b75b7update ajv + ajv-keywords8da8b93Work around Node environment variable bugddb1fadMerge pull request #6408 from ocombe/fix/#6407-empty-array2aebfbefix(ConcatenatedModule): don't throw on arrays with empty values3972d9aMerge pull request #6391 from nerdkid93/patch-1e4375f8Avoid relying on Node’s internals0dd1727change polymer loader link33f518bMerge pull request #6300 from nename0/fix-624380ed1c4Merge pull request #6335 from Connormiha/banner-plugin-optimize5d93c53Minor optimize banner plugin1895b76Add Tests checking chunkhash of runtime chunk only changes if neededThere are 62 commits in total.
See the full diff
FAQ and help
There is a collection of [frequently asked questions](https://greenkeeper.io/faq.html). If those don’t help, you can always [ask the humans behind Greenkeeper](https://github.com/greenkeeperio/greenkeeper/issues/new).Your Greenkeeper bot :palm_tree: