Dear all, 

I currently use Emacs 27.2 (9.0) and need to update to the last version.
No idea how my current Emacs was installed on my Mac.

In case this helps, when I do on Terminal:

§ which -a- emacs

/usr/local/bin/emacs
/opt/local/bin/emacs
/usr/local/bin/emacs

What would the way to go to update my emacs to the last version without affecting any of my configuration or packages?

Thanks!
G.