pypi / jupyter-builder
jupyter-builder
What changed in jupyter-builder 0.0 to 1, from its official release notes, upgrade guides and advisories. Also covers @jupyter/builder. Sources checked 2026-11-08.
5 breaking1 deprecations1 new APIs and options3 behavior and defaults4 tooling8 fixes and other
See which of these apply to your code, ranked, in your agent:
npx @unstale/cli initjupyter-builder 117 changes
Breaking changes 4
Switched back to Module Federation v1, which may affect build compatibility.
A requested core version that cannot be found now raises an error; v-prefixed versions are accepted.
Unsupported Node.js versions now fail fast with a clear error, and the hard-coded node executable is removed.
The setuptools dependency was removed.
New APIs and options 1
Adds a jupyterlab.rspackConfig alias for configuring Rspack.
Behavior and default changes 3
The version check now allows Node.js prereleases.
Package discovery is improved, changing how jupyter-builder finds packages.
Fetching switches to stdlib HTTP and npm registry tarballs.
Tooling 2
Adds the
py.typedmarker to indicate that the package provides type information.The bundled yarn.js now supports workspaces foreach.
Fixes and other changes 7
Prevents _resolve_core_path_for_jupyterlab_builder from overwriting the installed package.json.
Fixes a TypeError when package.json omits the dependencies field.
The version pin now supports npm range specifiers.
Fixes path issues when building on Windows.
Partial version specifiers such as 4 and 4.5 are now supported.
Fallback resolution was improved.
Symlinks are no longer resolved when locating node, fixing compatibility with Volta-style shims.
jupyter-builder 0.05 changes
Breaking changes 1
Requires Python 3.10 or newer.
Deprecations 1
The core-path flag was restored and marked deprecated.
Tooling 2
Fully supports @jupyterlab/builder, improving compatibility for developers using it.
Handles both @jupyter/builder and @jupyterlab/builder.
Fixes and other changes 1
Fixes the missing tomli dependency for Python versions below 3.11.