v2.9.3

Fixed

• Resolver

  • Fix the development and production package conditions – Details

• JavaScript

  • Update SWC to fix generics in JSX elements – Details

v2.9.2

Fixed

• Core
  • Fix infinite loop when entries look like globs – Details
  • Fix proxyrc require from path – Details
• JavaScript
  • Treat re-exports of * from empty files with sideEffects: false as ESM – Details
• CSS
  • Fix self references error in CSS module JS assets causing "Bundle group cannot have more than one entry bundle of the same type" – Details
• Dev server
  • Serve folder's index when requesting folder without slash – Details
• Web extensions
  • Allow source maps files in webextension – Details
• Image
  • Add core as peerdep to image optimizer – Details

v2.9.1

Fixed

• Resolver
  • Ignore invalid package.json "type" field values – Details
  • Ignore duplicate slashes at the start of relative path specifiers – Details

v2.9.0

Parcel v2.9.0 includes many long requested features, including a brand new resolver with support for package.json "exports" and tsconfig.json features, support for ESM plugins and configs, and local Parcel plugins. It also improves performance with a new default JS minifier powered by SWC, incremental symbol propagation, and improved bundler data structures.

Blog post: https://parceljs.org/blog/v2-9-0/

Added

• Core

  • Add support for ESM plugins and configs – Details
  • Add support for local parcel plugins – Details
  • Incremental Symbol Propagation for improved performance and improved export errors in development – Details
  • Add support for plugin tracing, which shows where time is being spent during a Parcel build – Details
  • Support .proxyrc.cjs config files – Details
  • Add support for loadConfig function to resolver plugins – Details

• Resolver

  • New resolver implementation in Rust supporting package.json "exports" and "imports", and tsconfig.json "baseUrl", "paths", and "moduleSuffixes" – Details

• JavaScript

  • Switch to SWC minifier instead of Terser by default – Details
  • Split large runtime manifest into separate bundles to reduce cache invalidations – Details
  • Respect addExternalDependency in Babel plugins – Details

• Bundler

  • Use BitSet for bundler intersections for improved performance – Details

• Web Extensions

  • Add support for chrome_style field – Details

Fixed

• Core

  • Improve error message when bundles do not have unique file names – Details
  • Bump napi-rs to latest – Details, Details
  • Fix pnpm autoinstall – Details
  • Fix "does not exports" error for multiple assets returned by transformers – Details
  • Remove v8-compile-cache – Details
  • Update fast-glob – Details
  • Update lmdb – Details
  • Fixup DiagnosticCodeHighlight and SourceLocation columns – Details
  • Bump fastest-levenshtein and xmldom dependencies – Details

• JavaScript

  • Sort global deps before injecting imports to reduce cache invalidations – Details
  • Only add export setter for non-ESM exports – Details
  • Bump SWC – Details, Details, Details, Details,
    Details
  • Deduplicate imports in hoist transformer – Details
  • Allow buffer polyfill v5 or v6 – Details
  • Fix packaging of synchronous reused bundles – Details
  • Support eslint ^7.0.0 in @parcel/validator-eslint – Details
  • Improve inlineEnvironment performance – Details
  • Hoist exports to allow circular dependencies – Details

• TypeScript

  • Throw diagnostics as error on empty emit - Details

• CSS

  • Sort CSS module exports to reduce cache invalidations – Details

• Bundler

  • Fix missing edge error when using for multiple targets – Details
  • Fix non-deterministic builds between project directories – Details
  • Fix css-module related build error in bundling – Details
  • Fix multiple entries pointing to wrong bundle in dist – Details

• Dev server

  • Don't error during HMR on <link> elements without hrefs – Details
  • Improve server index file matching – Details
  • Don't send HMR updates before packaging in watch mode – Details

• Elm

  • Fix error when formatting build errors – Details

v2.8.3

• Core
  • filter out title execArgv to workers – Details
• Bundler
  • Fix CSS order when merging type change bundles – Details
  • Fix assertion error when mixing CSS modules and non-modules – Details
  • Fix set diff – Details
  • Recursively check reachability when removing asset graphs from bundles in deduplication – Details
• JavaScript
  • Don't retarget dependencies if a symbol is imported multiple times with different local names – Details
  • Fix assigning to this in CommonJS – Details
  • Bump SWC to fix dead branch removal bug – Details
  • Bump swc to fix sourcemaps with Windows line endings – Details
  • Add test cases for ESM initialization problems – Details
• TypeScript
  • Fix TSC sourcemaps metadata – Details
• HTML
  • Fix srcset parsing – Details
• Dev server
  • Apply HMR updates in topological order – Details
  • Fixed the hmr connection with host 0.0.0.0 – Details

v2.8.2

Fixed

• Core
  • Ensure maxListeners for process.stdout accounts for workers – Details
• JavaScript
  • Bump SWC to fix scoping issue with block-less loops – Details
  • Fix requires of external CommonJS SWC helpers – Details

v2.8.1

Fixed

• Core
  • fix: remove @parcel/utils dep in @parcel/graph – Details
• JavaScript
  • Don't retarget dependencies with * – Details
  • Fix overriding single export of a export * – Details
  • Add mjs and cjs to resolver extensions – Details
• TypeScript
  • Make ts-types transformer work with TS >= 4.8 – Details
• Web manifest
  • Parse shortcut icons in web app manifests – Details
• SVG
  • Fix transformer-svg-react not finding .svgrrc – Details

v2.8.0

Blog post: https://parceljs.org/blog/v2-8-0/

Added

• Core
  • Code splitting across reexports using symbol data by splitting dependencies – Details
  • Update without bundling for non-dependency related changes – Details
  • Improve performance of incremental bundling – Details
  • Only serialize and send shared references to workers that need them – Details
  • Improve performance of HMR by not waiting for packaging – Details
• JavaScript
  • Verify version when resolving Node builtin polyfills – Details
  • Add loadBundleConfig method to Packager plugins – Details
• SVG
  • Generate typescript for SVGs when using svgr and typescript option – Details
• Bundler
  • Move experimental bundler to default – Details

Fixed

• Core
  • Fix verbose warning: reexport all doesn't include default – Details
  • Support multiple edge types in Graph.hasEdge – Details
  • Ensure edge exists before removal in Graph.removeEdge – Details
  • Disable splitting dependencies on symbols for non-scope hoisted bundles – Details
  • Fix TypeScript definitions for Parcel config API – Details
  • Use traverseAssets in packager to improve performance – Details
  • Make uniqueKey undefined by default – Details
  • Catch uncaught promise build abort race – Details
  • Bump parcel dependencies – Details
• JavaScript
  • Bump SWC - Details, Details
  • Fix Chrome Android browserslist support check – Details
  • Fix CommonJS symbol collection without scope hoisting – Details
  • Make React Refresh debounce call on the leading edge – Details
  • Retain correct dependency order between imports and reexports without scopehoisting – Details
• Bundler
  • Consider sibling in available assets to younger sibling for parallel deps – Details
  • Don't merge isolated child assets – Details
  • Do not merge isolated bundles in experimental bundler – Details
  • Implement min bundles configuration – Details
• Dev server
  • Include Content-Length header in HEAD requests – Details
• Vue
  • Fix errors displaying errors when compiling Vue SFCs – Details
  • Add file path to error code frames – Details
  • Fix location of errors – Details
• Image
  • Upgrade sharp – Details
• TypeScript
  • Allow configuring module resolution – Details
• Web extensions
  • Fix service worker packaging in web extensions – Details

v2.7.0

Added

• Core
  • Log resolved targets in verbose log level for debugging - Details
  • Allow plugin configs to be written with .cjs extension - Details
• JavaScript
  • Support react refresh for @emotion/react - Details
  • Inject script for hmr when there is only normal script in html - Details
• Elm
  • Add support for compiling multiple modules at once via with query param - Details
• CSS
  • Add support for errorRecovery option in @parcel/transformer-css - Details
• Experimental bundler - Details
  • Implement bundling for multiple targets
  • Internalize async dependencies
  • Merge bundles of the same type
  • Fix missing module - Details

Fixed

• JavaScript
  • Default interop missing when importing a CommonJS module - Details
  • Add missing imports for external dependencies in skipped assets - Details
  • Bump SWC to fix undefined variables - Details
  • Remove charset from JS loaded script to avoid double fetching in Firefox - Details
  • Use placeholder expression when replacing unused symbols - Details
• Core
  • Fix atomic writestream handling on Windows - Details
  • Fix non-deterministic bundle hashes between builds due to symbol propagation - Details
  • Fix TypeScript types for @parcel/package-manager - Details
• Dependencies
  • Bump terser to 5.14.2 - Details
  • Bump node-forge to 1.3.0 - Details

v2.6.2

This release includes bug fixes:

• Core
  • Fix race condition between writing and reading from cache - Details