How to install aircrack-ng latest version from terminal in Ubuntu 16.04 ?
Since you are on the 16.04, this version already comes (As of the 13th of August 2016) with the latest version of aircrack-ng. So the only needed way would be a simple:
sudo apt install aircrack-ng
The version right now is
1.2-0~beta3-4 which corresponds to the latest one on the official Aircrack page.
The one in the repository is already the latest version for Ubuntu 16.04.
apt-cache policy aircrack-ng to check the available version. The output should be something similar to:
aircrack-ng: Installed: (none) Candidate: 1:1.2-0~beta3-4 Version table: 1:1.2-0~beta3-4 500
So, to install the latest package just do:
sudo apt-get install aircrack-ng