Configure default upstream remote branch

The first time you pull changes from a repository (or if cloning via Magit), the default upstream remote and branch is set.

F u will pull all the changes from the default upstream remote branch.

Changing the default remote

To change the default upstream, first unset the default value and then add a new default.

F to open the pull menu

C to open the configuration of the local repository

u to unset the default upstream branch (removed the description too)

u to add a new upstream branch as the default, showing a list of all possible remote branches.

RTN to choose a branch

G-g to close the configuration menu. Then either u to pull from the new default upstream branch, or C-g to exit the pull menu.