Excerpting Phoronix:
Over the past week were some fixes/improvements around FreeBSD’s UEFI support, “The UEFI ZFS loader has been updated to support the latest ZFS Boot Environment (BE) loader menu features” and “The UEFI boot loader received several improvements: /boot/config and /boot.config files now are adhered to, multi device boot support works and command line argument parsing has been added.”
http://www.phoronix.com/scan.php?page=news_item&px=FreeBSD-10.3-Beta-2
https://lists.freebsd.org/pipermail/freebsd-stable/2016-February/084145.html
https://www.freebsd.org/relnotes/10-STABLE/relnotes/article.html
Firmware Security 