pfSense is a m0n0wall-derived operating system. It uses Packet Filter, FreeBSD 6.x (or DragonFly BSD when ALTQ and CARP is finished), ALTQ for excellent packet queuing, and an integrated package management system for extending the environment with new features.This time pfSense comes with huge changes and features
New Features and Changes
1 Security Fixes
2 Interfaces
3 Gateways/Routing
4 NAT/Firewall Rules/Aliases
5 Traffic Shaping
6 Dashboard & General GUI
7 Captive Portal
8 VPN
9 Certificates
10 DHCP
11 Load Balancing
12 Time
13 Misc