Document r292120, Update to ELF Tool Chain r3272
Document r299142, Native PCIe Hotplug support
Document r298166, libucl has been updated to version 0.8.0
Document r302288, Enable indirect segment I/O by default when running on EC2
Document r302265, Allow ZFS ARC min / max to be tuned at runtime
Document r299142, The leap-seconds file has been updated to

leap-seconds.3676752000

Document r302177, WITH_SYSTEM_COMPILER: Enable by default
Document r304246, PCIe HotPlug: Detect bridges that are not really

HotPlug capable

Document r301565, Switch arm64 to use intrng by default
Document r299781, Support for the Allwinner Reduced Serial Bus (RSB)
Document r296064, Support for Allwinner A20 HDMI
Document r299393, Default installation directory for modules is /boot/modules
Document r303716, Drop SSH1 support
Document r303719, Disable DSA by default
Document r297633, RCTL resources for limited filesystem IO
Document r300723, Mellanox implementation of iSER
Document r299848, Allow reroot to NFS
Document r301033, Discovery without attaching support in iscsictl
Document r299371, camcontrol reprobe
Document r295212, Add an additional, libucl-based configuration file parser

to ctld

Document r287842, Change default regulatory domain from DEBUG to FCC in ifconfig
Document r301875, The SIOCSIFALIFETIME_IN6 ioctl has been removed

These map to r304919, r304923, and r304929 from stable/11 from skreuzer@.

Approved by: re (implicit, relnotes)
Sponsored by: The FreeBSD Foundation