Dubbed by Canonical and Ubuntu founder Mark Shuttleworth as the Yakkety Yak, Ubuntu 16.10 was launched on October 13, 2016, and it was a short-lived release that only received nine (9) months of support through kernel updates, bug fixes, and security patches for various components.
Starting today, you should no longer use Ubuntu 16.10 (Yakkety Yak) on your personal computer, even if it’s up-to-date. Why? Because, in time, it will become vulnerable to all sort of attacks as Canonical won’t provide security and kernel updates for this release.