Unusual timing, unusual release.
You’ve read about the Beta and RC , you know the drill.
pip install ipython ipykernel --upgrade
And if you are using conda, once available on conda-forge:
conda upgrade ipython
It’s a major release, things will break, I will likely do a 8.0.1 or 8.1 in two weeks. If you have questions you can comment on this thread.
And thanks to nick for all the conda-work.