i tink many may found funny and handy some features in recent 4.6 kernel.
like native MacSec support(https://git.kernel.org/torvalds/c/c0944 ... 9eb25f2da0) , 5 version of BATMAN(https://www.open-mesh.org/projects/batm ... i/BATMAN_V), KCM (https://git.kernel.org/cgit/linux/kerne ... 60397a161b) and some - may find intel KPM useful(but not as more deep/serious counterparts, never accepted into upstream, yet), support for several new interfaces(both wired, wireless, fiber), support for SuperSpeedPlus USB 3.1 (10Gbps mode) and some others.