Release candidate builds of Emacs are published weekly to the latest/beta channel. These are built by Launchpad using this recipe https://launchpad.net/~alexmurray/+snap/emacs/ which provides full build logs for build transparency.
For versions of Ubuntu between 14.04 LTS (Trusty Tahr) and 15.10 (Wily Werewolf), as well as Ubuntu flavours that don’t include snap by default, snap can be installed from the Ubuntu Software Centre by searching for snapd.
Alternatively, snapd can be installed from the command line:
sudo apt update
sudo apt install snapd
Either log out and back in again, or restart your system, to ensure snap’s paths are updated correctly.
Install GNU Emacs
To install GNU Emacs, simply use the following command: