There are an open issue of 2015,
but 5 days ago a link to a supposed “certbot team” (with no post in the issue discussion) shows a PPA!
it is secure, reliable… And will be officially updated?
why not closed the issue? … and why “nobody official” say something?
sudo add-apt-repository ppa:certbot/certbot sudo apt-get update apt install certbot
gpg: keyring `/tmp/tmpve_8ubeu/secring.gpg' created gpg: keyring `/tmp/tmpve_8ubeu/pubring.gpg' created gpg: requesting key 75BCA694 from hkp server keyserver.ubuntu.com gpg: /tmp/tmpve_8ubeu/trustdb.gpg: trustdb created gpg: key 75BCA694: public key "Launchpad PPA for certbot" imported gpg: Total number processed: 1 gpg: imported: 1 (RSA: 1) OK