How do up upgrade LetsEncrypt certbot to version 0.22 which supports wildcard certificates?

To get a wildcard SSL certificate from LetsEncrypt you need to run certbot version 0.22 or later according to

I've installed certbot from apt using

sudo apt-get install certbot

However, that reports:

certbot is already the newest version (0.17.0-2).

How can I upgrade certbot to a version that supports wildcard certificates?

3 Answers

If you have already installed Certbot, you should add a parameter to apt-get install to upgrade only a specific package

sudo apt-get update
sudo apt-get install --only-upgrade certbot

Check version number

certbot --version || /path/to/certbot-auto --version

Reference answer: How to upgrade a single package using apt-get?

As the certbot site indicates, the certbot team maintains a PPA. The certbot package is at 0.22.2 on all supported versions of Ubuntu in that PPA. (What are PPAs and how do I use them?)

Check version number:

certbot --version

On Ubuntu systems, the Certbot team maintains a PPA. You can add it to your list of repositories and install Certbot by running the following commands:

$ sudo apt update
$ sudo apt install software-properties-common
$ sudo add-apt-repository universe
$ sudo add-apt-repository ppa:certbot/certbot
$ sudo apt install certbot

^(source)