I was using Ubuntu Gnome 15.10 and had upgrade gnome shell via ppa to 3.18. Yesterday I updated my distro to 16.04 and was surprised to find files is now version 3.14!
How can I get the latest version?
You can add the gnome3 repository to your system and upgrade.
sudo add-apt-repository ppa:gnome3-team/gnome3
sudo apt-get update && sudo apt-get upgrade
Worked for me.
To make it work, I had to first remove the old ppa:
sudo ppa-purge ppa:gnome3-team/gnome3
then update the dist
sudo apt-get dist-upgrade
and only then:
sudo add-apt-repository ppa:gnome3-team/gnome3
sudo apt-get update && sudo apt-get upgrade