We have renamed the main development branch on GitHub to
If you have a local clone, you can update it with the following steps:
Visit your MNE-Python fork on GitHub; you will see a message indicating that the default branch of the parent repository has been renamed:
Follow the instructions to rename your fork’s default branch to
After that, run the following commands in your local terminal:
git branch -m master main git fetch origin git branch -u origin/main main get fetch --all --prune
More details on this change are available at Regarding Git and Branch Naming - Software Freedom Conservancy.