See the commits 05a8c4904699..16da528365de in
https://abf.io/kernels_stable/kernel-4.6.
Hightlights:
* New build model: everything in a single project.
* PAE by default on i586. No non-PAE flavours remain.
* SELinux is now built in (disabled by default).
* Dropped ndiswrapper (can be built separately if it is really needed).
