ipywidgets 8.0.0 is now released on Pypi and conda-forge. This release, several years in the making, brings new widgets, many more styling options, and many other features. See the changelog at ipywidgets Changelog — Jupyter Widgets 8.0.0 documentation
ipywidgets 8.0.4 is out on PyPI and
conda-forge, and includes a number of bug fixes.