We're happy to announce the 1.0.1 release with several bugfixes:
You can see the changelog here: https://scikit-learn.org/dev/whats_new/v1.0.html#version-1-0-1
You can upgrade with pip as usual:
pip install -U scikit-learn
The conda-forge builds will be available shortly, which you can then install using:
conda install -c conda-forge scikit-learn