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

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

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