• Core

  • Add REPL playground for Parcel to the website – Details
  • Improve package manager detection for auto install – Details

• JavaScript

  • Add support for JS macros – Details
  • Statically evaluate constants referenced by macros – Details
  • Upgrade to ESLint 8 – Details
  • Bump swc – Details

• CSS

  • Use lightningcss to implement CSS packager – Details

• Bundler

  • Rename "parentAsset" to "root" for Manual Shared Bundle config and remove unstable prefix – Details

• Web Extensions

  • Add content script world property to manifest schema validation – Details

• Performance

  • Adjacency list optimizations – Details
  • Break up request graph cache serialisation and run after build completion – Details

• Core

  • Drop per-pipeline transformation cache – Details
  • Clippy and use napi's Either3 – Details
  • Add lazy/eager cache key to avoid invalid change when switching modes – Details

• JavaScript

  • Remove decl_collector pass and use SWC's unresolved_mark instead – Details

• Bundler

  • Fix multiple css bundles in entry bundle groups issue – Details
  • Allow parallel type change bundles to be reused by async siblings – Details
  • Skip on missing parent asset for manual shared bundles – Details

• Add source map support to the inline-require optimizer – Details

[2.11.0] - 2023-12-19

Added

• Dev
  • Log build phase times for dev builds Details
  • Progress messages for writing to cache Details
  • VSC Extension JSON schema Details
  • Print phase times on development builds Details
  • Publish bundle-stats-cli and parcel-query Details

Fixed

• Dev

  • Increase threshold for showing progress bar to 500k nodes Details
  • Fix parcel-query Details
  • FIX[dev-server]: Fix html file matching from URL Details
  • Fix parcel query's inspect cache Details
  • Bug fix for exiting early when identifying requestGraph in loadGraphs Details
  • Fix HMR on .localhost domains Details
  • Modify parcel query to not require all graphs on startup Details
  • Bug fix for async Parcel-query Details
  • Remove reliance on requestTracker in loadGraphs Details

• Core

  • Reduce redundancy in the RequestGraph's Request, Env, and Option nodes Details
  • Move registerCoreWithSerializer to its own file Details
  • Filter --expose-gc and --max-semi-space-size execArgv Node args from workers Details
  • Optimize Symbol Propagation (propagateSymbolsUp) Details
  • Convert Request Graph node types + request node requestTypes to numbers Details
  • fsFixture: ignore empty lines in fixtures Details
  • Unstable File Invalidations Details
  • Configurable watch root Details

• Resolver

  • Add ~ and / support to the glob resolver Details

• JavaScript

  • Bump swc Details
  • Bumping lightningcss to 1.22.1 Details
  • Fix CI Details
  • Change inline-requires to only run when optimizing Details
  • Fix tsconfig extends from node_modules Details
  • Bump some deps Details
  • Bump swc and napi-rs Details
  • Fix references to packages.atlassian.com Details
  • Fix build-ts step Details
  • Bump rimraf version to ^5.05 Details
  • Use centos image with newer Node 16 Details

Fixed

• Core

  • Use clz32 for counting trailing zeroes – Details

• JavaScript

  • Do not wrap duplicated assets when they are in different targets – Details

Fixed

• Core

  • Use modern node versions in CI Details
  • Support multiple workspaces/clients in Parcel for VSCode Details

• Bundler

  • Make sure to set unique key Details
  • Fix bundler tests assertions on Windows Details

• JavaScript

  • Add logic to disable scope hoisting if the this key word is pointing to an export module Details
  • Detect TSC polyfills to avoid marking them as CJS Details
  • Remove this exports tracking for files with module syntax Details
  • Bump swc Details

Unstable

• Bundler

  • Fix inline constants in shared bundles Details
  • Use Manual "name" for publicIds, remove source bundles from Unique Keys Details
  • Simplify MSB code for code split bundle creation section Details

What's Changed

• Disable scope hoisting when 'this' points to an export by @adelchan07 in https://github.com/parcel-bundler/parcel/pull/9291
• Use rimraf for Windows compat for build-bundles by @bdukes in https://github.com/parcel-bundler/parcel/pull/9314
• Bump swc by @mischnic in https://github.com/parcel-bundler/parcel/pull/9306
• Fix inline constants in shared bundles by @mattcompiles in https://github.com/parcel-bundler/parcel/pull/9313
• Use Manual "name" for publicIds, Remove source bundles from Unique Keys by @AGawrys in https://github.com/parcel-bundler/parcel/pull/9298
• Detect TSC polyfills to avoid marking them as CJS by @mattcompiles in https://github.com/parcel-bundler/parcel/pull/9318
• Simplify MSB code for code split bundle creation section by @AGawrys in https://github.com/parcel-bundler/parcel/pull/9312
• Make sure to set unique key (fix) by @AGawrys in https://github.com/parcel-bundler/parcel/pull/9326
• Fix bundler tests assertions on windows by @mattcompiles in https://github.com/parcel-bundler/parcel/pull/9333
• Use modern node versions in CI by @mischnic in https://github.com/parcel-bundler/parcel/pull/9323
• Remove this exports tracking for files with module syntax by @mattcompiles in https://github.com/parcel-bundler/parcel/pull/9330
• Support multiple workspaces/clients in Parcel for VSCode by @celinanperalta in https://github.com/parcel-bundler/parcel/pull/9278
• v2.10.1 release by @adelchan07 in https://github.com/parcel-bundler/parcel/pull/9327

New Contributors

• @bdukes made their first contribution in https://github.com/parcel-bundler/parcel/pull/9314

Full Changelog: https://github.com/parcel-bundler/parcel/compare/v2.10.0...v2.10.1

Fixed

• Bundler
  • Add logic to disable scope hoisting if the this key word is pointing to an export module Details
  • updates the build-bundles script to use rimraf instead of rm -rf Details
  • Fix inline constants in shared bundles Details
  • Ensure manualSharedBundles have unique names Details
  • Simplify MSB code for code split bundle creation section Details
• JavaScript
  • Detect TSC polyfills to avoid marking them as CJS Details

Parcel v2.10.0 includes big performance improvements, an improved --lazy mode, reduced runtime bundle sizes, web extension improvements, and tons of bug fixes and improvements.

Added

• Core

  • Add support for include and exclude globs for --lazy mode – Details, Details
  • Merge all native Rust modules into one package – Details
  • Add async resolver and JS transformer functions using rayon – Details
  • Support "register" tools in module loader (e.g. @babel/register, esbuild-register, ts-node) – Details
  • Limit default number of JS workers to 4 to improve memory usage/performance – Details

• Bundler

  • Optimize bundler performance – Details
  • Add disableSharedBundles config option – Details

• Resolver

  • Support node: prefix for CJS dependencies – Details, Details

• JavaScript

  • Add import helper to decrease ESM loader runtime footprint – Details
  • Support parallel bundle imports in libraries – Details
  • Only include globalThis polyfill for old browsers – Details
  • Updated parcelRequire.register to be minifiable – Details

• CSS

  • Add include and exclude globs for CSS modules – Details

• WASM

  • Add WASM packager with source map support – Details

• XML

  • Transform xml-stylesheet processing instructions – Details

• Web Extensions

  • Add support for Chrome Extension manifest V3 side_panel property – Details
  • Improve HMR for web extensions – Details

• Web Manifest

  • Add support for icons in file_handlers – Details

Fixed

• Core

  • Query glibc version only once to speed up JSTransformer on Linux – Details
  • Refresh cache before writing contents to bundle – Details
  • Fix --lazy mode bugs – Details
  • Ignore no-opt command line option – Details
  • Bump lmdb – Details
  • Don't hide error when diagnostic is malformed – Details
  • Don't autoinstall local files in package manager – Details
  • Fix bug with cache and glob entries – Details

• JavaScript

  • Migrate to swc_core – Details
  • Move ESM loader runtime to absolute URLs – Details
  • Fix duplicate asset references – Details
  • Bump swc – Details, Details, Details
  • Fix shorthand identifier import usage – Details
  • Ensure nested member expressions are marked used in dev mode – Details
  • Set ascii_only for swc emit – Details
  • Add tests for non-identifier symbol names – Details

• Bundler

  • Exclude inline assests from parallel request limit – Details
  • Fix unexpected undefined when creating shared bundles – Details

• Images

  • Bump oxipng from 6.0.0 -> 8.0.0 – Details

• Sass

  • Fix sass import edge case – Details

• Dev Server

  • Fix index page loading in dev server when bundle type isn't html – Details

Unstable

• Core

  • Expose unstable_transform and unstable_resolve APIs – Details

• Bundler

  • Add unstable manual shared bundles config – Details

• JavaScript

  • Experimental inline / deferred requires optimiser – Details
  • Add constants inlining optimization – Details
  • Add unstable async bundle runtime to the JS Packager – Details

Fixed

• Resolver

  • Fix the development and production package conditions – Details

• JavaScript

  • Update SWC to fix generics in JSX elements – Details

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

Fixed

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