[ubuntu] Xenial on Intel NUC Skylake: Which Kernel To Track?

I've got Xenial on an Intel NUC i5 Skylake. These units are new with a number of issues reported on Linux, including display hangs and freezes, poor power management and poor hardware acceleration support, and bricking resuming from suspend. Intel has released a series of BIOS updates.

I experienced very frequent display hangs and freezes with the 4.4 keel shipping in the Xenial dailies. I'm currently using the 4.5.0-997 drm-next-intel keel from the mainline PPA, which is behaving, so far.

I'm unsure how the drm-intel keels relate to the other mainline keels. What should I track to stay current with the latest Skylake patches?