I’m missing HOW UPDATE GIT in your manual pages here
https://letsencrypt.readthedocs.org/en/latest/using.html
and in Beta Invite email where is Quick Start
I.E. if I already clonned git via git clone… and know after two weeks I would like to used to updated version of your installation scripts… git clone wouldn’t work
I think that is needed to update project by
cd letsencrypt
git remote update
and than execute instalation ./letsencrypt-auto …