Releases: webpack/webpack
Release list
v5.110.1
Patch Changes
-
Fix a capture-group-less
snapshot.managedPathsRegExp; speed up cache writes. (by @alexander-akait in #21843) -
Throw
SyntaxError, orWebAssembly.CompileError, from an unparsable module. (by @alexander-akait in #21847) -
Accept the
optimization.minimize: trueshorthand set by a plugin inapply(). (by @AgentEnder in #21845)
v5.110.0
Minor Changes
-
Wrap concatenated modules in lazy
__webpack_require__.cwaccessors and inlinerequire(), keeping a wrapped body's names and side effects intact. (by @hai-x in #21519) -
Add performance hints reporting what a build costs: duplicate packages and modules, circular dependencies, broad contexts, large modules and chunks, hotspots,
eval, missing PURE annotations, polyfills, redundant dynamic imports, OS-dependent rules, cache effectiveness, how chunks load, what splitting refused, why an optimization was skipped, and rules, defines, externals, aliases and barrel reexports nothing uses. An oversized asset names its largest modules, and an entrypoint carrying the runtime recommendsoptimization.runtimeChunk. Enable every check not set individually withperformance.all, report hints in stats only withperformance.hints: "stats", and get them in a stable order that leaves the build hashes unchanged. (by @alexander-akait in #21841) -
Add the
descriptionRelativePathmodule rule condition. (by @alexander-akait in #21705) -
Add OS-independent
globmatching to module rules. (by @alexander-akait in #21771) -
Report inner-graph, AMD and bare
modulebailouts inoptimizationBailout. (by @alexander-akait in #21740) -
Allow marking externals as side-effect-free with a
sideEffectsflag. (by @alexander-akait in #21712) -
Give externals the original request of a context module element. (by @alexander-akait in #21780)
-
Add the
externalsPresets.nodeModulespreset with anallowlistoption to externalize installed packages, replacing thewebpack-node-externalsplugin. (by @alexander-akait in #21569) -
Add
output.library.umdAmdContainerfor an AMD-style loader branch in UMD. (by @hai-x in #21770) -
Resolve
@custom-mediavalues that aretrue/falseor name another custom media. (by @alexander-akait in #21624) -
Add the
__webpack_css_server_styles__module variable to read the CSS collected while rendering without a DOM, and keep that CSS in the order the styles were applied. (by @alexander-akait in #21576) -
Patch the HTML
<head>in place on hot update instead of forcing a full reload, including when a<script>that never executed is removed. (by @alexander-akait in #21624) -
Scope counter names in CSS modules; fix the
counter()counter-style andanimationtimeline keywords. (by @alexander-akait in #21600) -
Derive
import defer/import sourcefrom the target and fix the source phase. (by @alexander-akait in #21810) -
Emit analyzable ESM urls for chunks, assets, styles, workers and wasm. (by @alexander-akait in #21788)
-
Tree shake CommonJS:
module.exportsobject literals, exports destructured from arequire()binding, unused method requires, and unused side-effect-freerequire()calls and reexports. (by @alexander-akait in #21841) -
Resolve relative entry
baseUrivalues and bake one side of a hash cycle. (by @alexander-akait in #21750) -
Minify CSS further, only where the document is unchanged: shorthands and box longhands,
font-weight,<position>andfont-stretchkeywords, colors (polar, Lab andhsl()converted to hex), numbers, times, zero units,calc()and every math function the spec names folded over constants, selector lists, An+B, keyframe selectors, media-feature ranges,unicode-range,transitionlayers,display, transforms, gradients, font families, identical repeated declarations, and rules an identical later one makes dead. Abilities are read off the target browsers,vendorPrefixesadds and drops vendor prefixes for them, andrewriteCustomPropertiesshortens custom property values. Minification never changes whether a declaration parses, and beautifying keeps every rule. (by @alexander-akait in #21841) -
Safely minify CSS (with source maps) and HTML assets when
optimization.minimizeis enabled, unless a minimizer is already configured for them, making only transformations an engine cannot tell apart. Every rewrite is named as an option, so it can be switched off. (by @alexander-akait in #21841) -
Minify HTML further where the parsed document is unchanged: drop redundant quotes, whitespace nothing renders, escapes text does not need, implied tags, optional end tags nothing prints behind, empty attributes and nested empty elements; fold enumerated values and casing; normalize each attribute against the element it is on; and rewrite
style, token lists,srcset,sizes, URL, integer and boolean attributes, viewportcontent, inline<style>and a JSON<script>body through their own grammars. Adds theoptimization.minimize.htmloptionscollapseWhitespace,mergeStyles,minifyConditionalComments,minifySrcdoc,preserveComments,removeEmptyAttributes,removeEmptyElements,removeImpliedTags,removeRedundantAttributes,sortAttributesandsortTokenLists, and keeps an end tag the parent, the next element or the adoption agency would otherwise restructure the tree over. (by @alexander-akait in #21841) -
Suggest the closest name or a casing fix anywhere in a failed request. (by @alexander-akait in #21727)
-
Add aggregated
shutdownhook toMultiCompiler. (by @bjohansebas in #21578) -
Report which compilers changed on the MultiCompiler
donehook. (by @bjohansebas in #21580) -
Add
[containedpath]/[containedfile]placeholders, used for[path]/[file]of asset and html modules withexperiments.futureDefaults. (by @alexander-akait in #21592) -
Support an object for an entry's
htmlthat overridesoutput.htmlper option. (by @alexander-akait in #21574) -
Configure or exclude each asset type's minifier via
optimization.minimize. (by @alexander-akait in #21663) -
Support printing CSS and HTML beautified as well as minified. (by @alexander-akait in #21660)
-
Add
renderEmbeddedSource, and minify what it offers out of the box. (by @alexander-akait in #21830) -
Report bindings named
eval,argumentsor reserved words in ES module output. (by @alexander-akait in #21567) -
Emit no development source map for module libraries, or any with futureDefaults. (by @alexander-akait in #21839)
-
Speed up builds and cut memory: faster CSS, HTML and JavaScript parsing and minification, a built-in scope analyzer replacing
eslint-scope, faster dependency hot paths, module diagnostics, CommonJS export scanning and concatenated module renaming, runtime modules, parsers, generators and dependencies loaded only when used, one file watcher pool shared between MultiCompiler children, and lower parser, graph and startup memory. (by @alexander-akait in #21841) -
Improve tree-shaking for a namespace reexported as default, and fix
import d from "./mod"; d.memberreadingundefinedin that case. (by @alexander-akait in #21841) -
Warn on cross-kind CSS module export conflicts and let the class win. (by @alexander-akait in #21538)
-
Add
output.resourceHints.dedupeto skip prefetch links for already preloaded/prefetched chunks. (by @alexander-akait in #21386)
Patch Changes
- Let a memory-cache etag misma...
v5.109.2
Patch Changes
-
Resolve aliases pointing at a package directory whose name ends with
.jsagain. (by @alexander-akait in #21542) -
Name CSS sources in source maps by their resource path, without the
cssprefix. (by @bjohansebas in #21536) -
Delete no longer referenced files from the filesystem cache directory after storing the cache, age them by recorded time so restored caches are cleaned too, and collect every fully expired pack in one store instead of one per build. (by @bjohansebas in #21528)
-
Report
"universal"as the loader context target for the universal target. (by @alexander-akait in #21540) -
Skip
require().propin dead branches gated by inlined imported constants. (by @hai-x in #21517) -
Annotate configuration options and public hooks in the generated types with the
@sinceJSDoc tag. (by @bjohansebas in #21473)
v5.109.1
Patch Changes
-
Fix stray semicolon emitted before an imported call following a parenthesized sequence element. (by @alexander-akait in #21533)
-
Make
require(esm)module.exportsre-export analysis independent of module processing order. (by @alexander-akait in #21521) -
Ignore ERR_SERVER_NOT_RUNNING on lazy-compilation backend dispose so
compiler.close()succeeds on Bun. (by @alexander-akait in #21521) -
Name the failing key when DefinePlugin fails to evaluate a
typeofvalue. (by @alexander-akait in #21503) -
Improve Deno compatibility: guard
setNoDelayand force-close connections on lazy-compilation backend dispose, and return a realArrayBufferfrom the Node async/sync wasm loader soWebAssembly.instantiateaccepts it. (by @alexander-akait in #21524) -
Speed up the HTML parser and cut its peak memory: module-scope helpers/state and tokenizer callbacks, plus exact AST column pre-sizing. (by @alexander-akait in #21492)
-
Track CommonJS build dependencies by parsing sources when
require.cachechildren are unavailable (e.g. Bun). (by @alexander-akait in #21531) -
Cook common string-literal escapes on the JS parser fast path and own the tokenizer's cold-path readers. (by @alexander-akait in #21500)
-
Build the CSS
parseA*AST on the SoA store instead of node classes, cutting parse memory and time. (by @alexander-akait in #21498) -
Speed up and cut memory of the experimental CSS and HTML parsers: drop two derivable AST node columns, and scan long string, url, comment, and plaintext token bodies natively. (by @alexander-akait in #21504)
-
Speed up non-modules CSS parsing: skip redundant token re-reads, drop selector-prelude tokens without materializing nodes, allocate rule preludes lazily, and fast-path empty list seals. (by @alexander-akait in #21511)
-
Speed up stats generation and cut its peak memory: reuse cached sort comparators instead of thrashing the comparator caches on every sort, and drop redundant module-graph lookups and allocations in the extractors. (by @alexander-akait in #21506)
-
Speed up CSS parsing: byte-range function-name checks, indexed sibling lookahead. (by @bjohansebas in #21520)
-
Reduce allocations and redundant work across the code-generation, module-concatenation, exports/usage-analysis, hashing, and chunk-splitting hot paths. (by @alexander-akait in #21516)
-
Enable the Node.js compile cache in the webpack CLI entry point. (by @bjohansebas in #21523)
-
Encode the persistent cache with V8's value serializer. (by @avivkeller in #21514)
-
Speed up SplitChunksPlugin: reject non-subset chunk sets with 64-bit signatures, cache unnamed entry keys, and drop per-module closures. (by @avivkeller in #21529)
-
Initialize
NormalModule._astin the constructor so each instance keeps a single hidden-class shape. (by @alexander-akait in #21515) -
Reduce allocations in the binary serialization hot paths. (by @alexander-akait in #21526)
-
Deduplicate and simplify several lib modules and speed up AggressiveMergingPlugin. (by @alexander-akait in #21525)
-
Rename nested
const/let __webpack_require__and__webpack_exports__declarations in bundled webpack output. (by @hai-x in #21508)
v5.109.0
Minor Changes
-
Default
experiments.typescriptto"auto", enabling built-in TypeScript support on Node.js >= 22.6 when no TypeScript loader is registered. (by @alexander-akait in #21477) -
Default
experiments.css,experiments.htmlandexperiments.asyncWebAssemblyto"auto", enabling built-in support unless a loader is registered for those files; modules with inline or hook-injected loaders (e.g. html-webpack-plugin templates) keep being parsed as JavaScript. (by @alexander-akait in #21477) -
Add
output.resourceHintsto emit resource hints (preload/prefetch/modulepreload/preconnect), on by default for ESM output, plusmodule.parser.<type>.urlHints,css.fontPreloadandjavascript.dynamicImportCssPreload. (by @alexander-akait in #21477) -
Add built-in build progress via
infrastructureLogging.progress, plusestimatedTime,phaseTimings, progress barwidthandprogressBar: "auto"onProgressPlugin. (by @alexander-akait in #21477) -
Concatenate CommonJS modules with statically analyzable exports; opt out via
optimization.concatenateModules: { commonjs: false }. (by @alexander-akait in #21477) -
Wrap "weird" CommonJS modules into module concatenation instead of bailing out. (by @alexander-akait in #21477)
-
Add
output.html.inline(true | "script" | "style") and thewebpackInlinemagic comment to inline chunk content into HTML. (by @alexander-akait in #21477) -
Add
output.html.injectto control where chunk tags are injected. (by @alexander-akait in #21477) -
Add
output.html.title,output.html.metaandoutput.html.baseoptions for head generation. (by @alexander-akait in #21477) -
Support per-icon link attributes (
sizes,media,color,type,crossorigin) and arrays inoutput.html.favicon. (by @alexander-akait in #21487) -
Add
output.html.manifestto generate and link a web app manifest with hashed icons. (by @alexander-akait in #21487) -
Add
output.html.cspto inject a Content-Security-Policy meta with inline-content hashes and an optional nonce. (by @alexander-akait in #21487) -
Add the
output.htmlinjectTagscompilation hook to inject tags (script/link/meta/β¦) withinjectToplacement. (by @alexander-akait in #21487) -
Add the
output.htmltransformTagscompilation hook to mutate, remove, or move (between<head>and<body>) a page's existing<script>/<link>/<style>/<meta>tags. (by @alexander-akait in #21487) -
Extend the HTML pipeline with
htmllink sources (bundled as their own emitted page) andrel="preload"/"prefetch"links bundled as chunks. (by @alexander-akait in #21477) -
Recognize more asset-bearing HTML sources: the
twitter:player:streammeta, legacy SVG references, and Web App Manifesticons/screenshots/shortcutsURLs. (by @alexander-akait in #21477) -
Add
module.parser.html.asto parse HTML as a document or an element fragment. (by @alexander-akait in #21477) -
Allow disabling a built-in HTML parser source via
type: falseinsources. (by @alexander-akait in #21477) -
Export
webpack.html.HtmlModulesPluginwithtransformHtml/htmlEmittedcompilation hooks. (by @alexander-akait in #21477) -
Resolve
@custom-media(including media-type values) and@custom-selectorin native CSS. (by @alexander-akait in #21477) -
Scope
view-transition-name/-group/-classnames and::view-transition-*()pseudo references in CSS modules undercustomIdents. (by @alexander-akait in #21486) -
Add
import.meta.globsupport, with acaseSensitiveoption and consistent hidden/node_modulesmatching. (by @alexander-akait in #21477) -
Resolve
import.meta.resolve("./asset")to the emitted asset URL via theimportMeta.resolveparser option. (by @alexander-akait in #21477) -
Add
import.meta.envdefaults:MODE,DEV,PROD,SSRandBASE_URL. (by @alexander-akait in #21477) -
Add fine-grained
import.metaparser options. (by @alexander-akait in #21477) -
Deprecate the
importMetaContextparser option in favor ofimportMeta.webpackContext. (by @alexander-akait in #21477) -
Emit analyzable
new URL(β¦, import.meta.url), worker/worklet URL andimport()references with literal specifiers for ESM module output. (by @alexander-akait in #21477) -
Compile async modules to generators for targets without async/await. (by @alexander-akait in #21477)
-
Evaluate and validate the second argument of dynamic
import(specifier, options). (by @alexander-akait in #21477) -
Add
module.parser.javascript.workletto bundle WorkletaddModule()entries. (by @alexander-akait in #21477) -
Add
?raw,?url,?inlineand?no-inlineasset query suffixes underexperiments.futureDefaults. (by @alexander-akait in #21477) -
Add an
interop("default" | "esModule") hint for object externals to control default-export interop. (by @alexander-akait in #21477) -
Add an
amd-asyncexternals type that loads AMD externals without an AMD library wrapper. (by @alexander-akait in #21477) -
Support
cache.compression: "zstd"for the filesystem cache. (by @alexander-akait in #21477) -
Warn on strict-mode-only syntax and semantic hazards in ES module output, configurable via the
strictModeViolationsparser option. (by @alexander-akait in #21477) -
Support parsers without location APIs: locations derive from node offsets and AST nodes no longer carry
loc. (by @alexander-akait in #21477) -
Attach the original DOM event to
ChunkLoadErrorandScriptExternalLoadErroraserror.event. (by @alexander-akait in #21477) -
Add
output.wasmStreamingFallbackfor wasm fallback on a wrong MIME type. (by @alexander-akait in #21477) -
Show why a module was marked as not cacheable in stats output. (by @alexander-akait in #21477)
-
Expose the active
MultiWatchingonMultiCompiler.watching. (by @alexander-akait in #21477) -
Resolve git merge conflicts when parsing the build-http lockfile. (by @alexander-akait in #21477)
Patch Changes
-
Fix broken HMR with
output.moduleand non-importchunk loading by emitting a plain-JSON hot-update manifest. (by @alexander-akait in #21477) -
Fix unused CSS module exports leaking into the JS wrapper. (by @alexander-akait in #21477)
-
Fix deferred import evaluation: re-t...
v5.108.4
Patch Changes
-
Speed up non-CSS-Modules parsing by not building unused selector AST nodes. (by @alexander-akait in #21324)
-
Speed up non-CSS-Modules CSS parsing by dropping value tokens nothing reads. (by @alexander-akait in #21324)
-
Resolve HTML asset URLs against the document
<base href>. (by @alexander-akait in #21329) -
Add HTML integration tests: generateError output, ignored src, null-char parse. (by @aryanraj45 in #21328)
-
Reduce CPU and memory overhead of HTML and CSS parsing and code generation. (by @alexander-akait in #21332)
-
Reduce HTML parser memory and CPU by skipping unused AST nodes. (by @alexander-akait in #21323)
-
Reduce HTML parser memory by storing the AST in struct-of-arrays form. (by @alexander-akait in #21331)
-
Key the provided-exports cache on a lazy barrel's still-lazy re-export targets. (by @hai-x in #21326)
-
Default
output.globalObjecttoglobalThisfor universal targets. (by @alexander-akait in #21314) -
Pass through
new URL(...)directory references instead of resolving them. (by @alexander-akait in #21312)
v5.108.3
Patch Changes
-
Speed up CSS parsing and reduce CSS AST node memory. (by @alexander-akait in #21285)
-
Fix HMR codegen crash for harmony accept with unresolved imports. (by @xiaoxiaojx in #21302)
-
Match harmony accept dependencies by module reference so HMR codegen handles imports without a module or chunk id. (by @alexander-akait in #21303)
v5.108.2
Patch Changes
-
Fix lazy barrel deferral of ungrouped side-effect imports. (by @hai-x in #21291)
-
Respect the
node:prefix for node.js core modules used as externals. (by @alexander-akait in #21286)
v5.108.1
Patch Changes
-
Fix invalid property access for escaped namespace imports with multi-character mangled export names. (by @xiaoxiaojx in #21280)
-
Add frames to ProfilingPlugin TracingStartedInBrowser event so the trace loads in Chrome DevTools. (by @alexander-akait in #21269)
v5.108.0
Minor Changes
-
Treat top-level await and
import.metaas ES module markers, matching Node.js syntax detection so no explicit module type is needed. (by @alexander-akait in #21218) -
Add a
buntarget that emits ESM and externalizesbun:*and node.js built-in modules. (by @alexander-akait in #21248) -
Support CommonJS reexports via
Object.definePropertyvalue and getter descriptors. (by @alexander-akait in #21129) -
Support JSON Schema
constwhen generating CLI flags from a schema. (by @alexander-akait in #21087) -
Support JSON Schema
if/then/elsewhen generating CLI flags from a schema. (by @alexander-akait in #21087) -
Skip import specifiers,
require()andimport()calls in dead conditional branches gated by inlined imported constants (isDEV ? A : B), evaluated viagetCondition. (by @hai-x in #21136) -
CSS
localIdentName[hash]now resolves to the local ident hash (matching css-loader); use[modulehash]for the module hash. (by @alexander-akait in #21259) -
Add CSS parser
asoption and resolveurl()inside HTMLstyleattributes. (by @alexander-akait in #21157) -
Add dedicated module classes for all built-in module types. (by @alexander-akait in #21164)
-
Support
.html/.cssfor the default./srcentry under the html/css experiments. (by @alexander-akait in #21039) -
Add
defineConfighelper for typed configuration files. (by @alexander-akait in #21169) -
Add a
denotarget (with versions, e.g.deno,deno2,deno1.40) that emits ESM, resolves node.js built-ins via the requirednode:specifier, and keeps Deno's own import protocols (npm:,jsr:,node:,http(s)://) external. (by @alexander-akait in #21247) -
Use
module-importfor electron externals when the target supports ESM. (by @alexander-akait in #21184) -
Add
output.environment.logicalAssignmentto emit||=in runtime code when the target supports logical assignment operators. (by @bjohansebas in #21219) -
Resolve and rewrite asset URLs inside
<iframe srcdoc>in HTML modules. (by @bjohansebas in #21226) -
Add HMR support for HTML modules with body/title DOM patching on update. (by @alexander-akait in #21011)
-
Add
css-urlhtml source type extractingurl()references from CSS-valued attributes. (by @alexander-akait in #21250) -
Add
module.parser.html.sourcesoption to disable or customize URL-attribute extraction for HTML modules, withscript/script-module/stylesheet/stylesheet-inlinetypes for custom attributes (by @alexander-akait in #21022) -
Add
module.parser.html.templateoption to transform HTML module source before parsing. (by @alexander-akait in #21055) -
Extract more source URLs in HTML modules (SVG, legacy and obsolete attributes). (by @alexander-akait in #21241)
-
Inline
export default <const>when the default-exported value is a primitive constant. (by @hai-x in #21189) -
Support
optimization.inlineExportsfor better tree-shaking. (by @hai-x in #20973) -
Re-encode inline hash digests (
[contenthash]/[chunkhash]/[fullhash]/[modulehash]) from the full content hash, so they carry full entropy and work underoptimization.realContentHashand in dynamically-loaded chunk filenames; also preserve leading zero bytes in base-N digests. (by @alexander-akait in #21267) -
Allow tree-shaking unused calls to
/*#__NO_SIDE_EFFECTS__*/-annotated (pure) exports across module boundaries. (by @hai-x in #20907) -
Defer building unused re-export targets of side-effect-free barrel modules. (by @hai-x in #21165)
-
Keep export mangling enabled for modules whose namespace object is used as a whole value, by materializing a decoupled namespace object that keeps the original export names. (by @alexander-akait in #21234)
-
Add
output.environment.letoption (paired with target'sletcapability) and emitlet/constinstead ofvarin generated runtime code wherever it is safe. Bindings that may be wrapped in runtime-conditionifblocks (harmony imports, ConcatenatedModule external imports) continue to usevarto preserve function scoping. (by @alexander-akait in #21010) -
Add
output.htmlto emit an HTML file per entrypoint, injecting its JS/CSS chunks (includingdependOnshared chunks). (by @alexander-akait in #21215) -
Add
module.parser.javascript.pureFunctionsto mark top-level names as side-effect-free for tree shaking. (by @hai-x in #21063) -
Add
universaltocompiler.platform, true for universal targets ("universal"or["web", "node"]). (by @bjohansebas in #21252) -
Add
output.strictModuleResolutionto gate the runtimeMODULE_NOT_FOUNDguard. (by @hai-x in #21067) -
Support an inline digest in hash path placeholders, e.g.
[contenthash:base64:8]. (by @alexander-akait in #21259) -
Support
[uniqueName]and its[uniquename]alias in template paths. (by @alexander-akait in #21155) -
Support CSS in Node for universal targets, collecting styles for SSR. (by @alexander-akait in #21208)
-
Improve commonjs, node-commonjs and global externals for universal targets. (by @alexander-akait in #21187)
-
Add a
universaltarget preset (browser + web worker + Node.js + Electron + NW.js) that always outputs ECMAScript modules. (by @alexander-akait in #21214) -
Support
new Worker(new URL(...))in universal (node + web) targets by resolving the Worker constructor fromworker_threadswhen no globalWorkerexists. (by @alexander-akait in #21195) -
Add
output.workerChunkFilenameandentry.workerfor worker chunk filenames. (by @alexander-akait in #21128)
Patch Changes
-
Skip re-parsing the inlined entry module when no renaming is needed. (by @alexander-akait in #21167)
-
Extend the avoidEntryIife no-parse fast path to multi-entry chunks. (by @alexander-akait in #21173)
-
Reuse the binary deserialize dispatch table to speed up cache restore. (by @alexander-akait in #21175)
-
Type
buildInfoandbuildMetaper module type with shared common properties. (by @alexander-akait in #21172) -
Avoid copying module runtime requirements when ownership is not transferred. (by @alexander-akait in #21140)
-
Keep all CommonJS exports when an exported function accesses them via
this. (by @alexander-akait in #21179) -
Align CLI color...