The fact of the matter is that the Ubuntu developers have been working on rebasing the Linux kernel of Ubuntu 16.10 (Yakkety Yak) on the upcoming Linux 4.8 kernel series, which is currently in development too, and the final release is expected to hit the streets later this month or on October 2, 2016. Until today, Ubuntu 16.10 shipped with the long-term supported Linux 4.4 kernel from the Ubuntu 16.04 LTS (Xenial Xerus) operating system, but patched with some of the goodies from the now deprecated Linux 4.6 kernel series. The Ubuntu devs briefly attempted to rebase Yakkety’s kernel on the Linux 4.7 branch too.