Your default branch is named master. If you have admin rights over a repository on GitHub, you can change the default branch on the repository.
- On GitHub, navigate to the main page of the repository.
- Under your repository name, click
Settings.
- In the left menu, click Branches.
- In the default branch sidebar, choose the new default branch.
You can only switch between branches that already exist on GitHub. To create a new branch through the UI, see "Creating and deleting branches within your repository".
Warning: This affects your trunk branch contents on the Git-Subversion bridge and the HEAD you'd see when you git ls-remote this repository's upstream URL.