What’s new in v0.4.1#

Added in version v0.4.1.

v0.4.1 (2026-10-13) fixes the packaging and its documentation. No library code changed; everything in the v0.4.0 notes still holds.

Fixed#

  • pip install maddening[all] and maddening[dev] install from wheels again. In 0.4.0 and earlier, all included PyGObject, the Python bindings the streaming extra uses. PyPI publishes PyGObject as source only, so pip had to compile it, and the build stopped with Dependency "cairo" not found on a machine without the cairo and GObject-introspection development headers. dev includes all, so the development install failed the same way.

    • all is now every feature extra except usd and streaming, plus the RunPod and Lambda cloud providers.

    • streaming still installs PyGObject. It also needs GStreamer and its WebRTC plugins, which come from your system’s package manager, not from pip: see Streaming prerequisites.

    • CI now resolves all and dev from wheels alone on every push, so a dependency that needs a build cannot slip back into them.

  • On 0.4.0 or earlier, name the extras of all except streaming instead:

    pip install "maddening[viz,terminal,network,api,surrogates,viz3d,gpu-viz,compression,cloud]"

  • A pip install -e ".[dev]" checkout can run the tests again. Since 0.4.0 tests/conftest.py imports hypothesis, which dev did not install; nor did it carry the starlette floor the API tests need or the build backend the packaging test uses. dev now includes the verify extra and both.

  • The installation guide lists every extra. verify (hypothesis, which maddening.testing needs to verify your own nodes) was documented only in the developer guide; dev, ci and sbom now have a section of their own.

Known anomalies#

  • MADD-ANO-296 records this defect, resolved in 0.4.1. The registry’s other entries are unchanged from 0.4.0.