Hi @oldtux,
Stable is the most, well, stable branch, and also the default in use on thee ISO. Nevertheless, if you want to confirm, you can use:
pacman-mirrors --get-branch
For example:
$ pacman-mirrors --get-branch
stable
Edit:
Kernels can be managed from the CLI using mhwd-kernel
. There’s also a GUI that I don’t use. Best would be to see: