• JavaScript

  • Expose line and column number to macros – Details

• React Server Components

  • Invalidate cache in ReactStaticPackager when pages are added or client components change – Details
  • Fix lazy mode with React Server Components – Details
  • Fix @parcel/rsc duplicate types – Details
  • Ensure publicUrl ends with a slash in react-static packager – Details
  • Fix hash reference replacement in react-static packager – Details

• Core

  • Change minimum required glibc version to 2.26 – Details
  • Cache inline bundle packaging – Details
  • Use stable id for package requests – Details

• HTML

  • Do not remove <meta charset="utf-8"> – Details

• MDX

  • Make URL dependencies in MDX files optional – Details

• React Server Components

  • Fix memory leak in react-static packager – Details

• Resolver

  • Fix resolving source package exports condition from self reference – Details

• SVG

  • Update oxvg – Details

• Compressors

  • Use max level compression for brotli compressor – Details

• HTML

  • Fix serializing <template> element contents – Details

• JavaScript

  • Skip optional dependencies in ESM externals – Details

Blog post: https://parceljs.org/blog/v2-15-0/

• Core

  • Distribute Rust binaries for each architecture as separate npm packages – Details

• HTML and SVG

  • Add Rust-based transformer/packager/optimizer for HTML and SVG – Details

• Resolver

  • Support cloudflare: scheme and no longer rewrite node: scheme – Details

• Core

  • Avoid segmentation fault on thread exit on Linux – Details
  • Support older GLIBC versions on Linux – Details

• JavaScript

  • Include all symbols in non-browser entries – Details
  • Update swc and mdx-rs – Details
  • Fix exporting objects with non-configurable prototypes from React Server Components – Details

• Core

  • Fix duplicate bundles error message – Details

• JavaScript

  • Support ESM externals and exports in dev packager – Details
  • Treat Deno's jsr: dependencies as external – Details

• JavaScript
  • Updated to React 19.1, which enables Server Components to be used with stable React instead of only canary – Details

• Core

  • Enable resolving source field in dev dependencies – Details
  • Error when building a library target in serve mode – Details

• JavaScript

  • Fix MDX inline assets in static RSCs – Details
  • Fix symbol collection with multiple exports of same function (e.g. date-fns) – Details

• REPL

  • Fix error overlay resolution in REPL – Details

• create-parcel

  • Fix gitignore in create-parcel – Details
  • Fix create-parcel on windows – Details

• Resolver
  • Fix resolving package self references – Details

• Core

  • Add a CLI to create new Parcel apps – Details

• JavaScript

  • React Server Components – Details, Details, Details, Details, Details
  • Add RSC-based static site generator – Details
  • First-class MDX support – Details
  • Merge React Refresh runtime and transformer – Details
  • Modernize React error overlay – Details
  • Support bundling node native modules – Details
  • Use import maps for bundle manifest – Details

• Dev Server

  • Support running node bundles in dev server – Details
  • Apply HMR updates via node worker thread – Details

• Core
  • Fix dev dep request missing 'invalidateOnCreate' – Details
  • Add napi-wasm as optional peer dependency in @parcel/rust – Details

• Resolver
  • Ignore invalid package.json fields – Details