This video shows what do I do when I compile a new trunk build. Hope this has been informative for you :)
IPv4 AND IPv6 (from now on IPv6 is by default supported)
DDNS
UPNP+NAT-PMP
OpenVPN 2.3.0
Samba
NTFS-3G 2013.1.13
USB mounts support (USB 2.0 with NTFS and EXT4 support)
QoS
If there is something wrong, leave a comment ;)