I really hope that they won't discontinue the project because I am very impressed about this massive firewall solution. Very flexible, reliable, loophole-proof and imho a must-have for security aficionados.
I've been using IPCop since 2006. It is fantastic, very customisable and rock solid. I run it on an Atom D410 with 2GB memory and an SSD, in a fanless VESA mount case. I use the Snort and Guardian add-ons, among others. I also run some other stuff on the same machine, like Minecraft server and AssaultCube server. I wrote my own monitoring tool for the hardware using gnuplot, html and bash. I used the TCC to build rkhunter on the machine.
I initially used it with PPPoE with a Kyocera modem and burst technology (I am in ZA) on Red. Now I have a Huawei 4G LTE router that connects to Red via dhcp. On Green I have an SMC EzConnect switch that provides safe, filtered and snorted internet to my family.
The community is helpful, in the ipcop-user mailing list as well as the Sourceforge forum. I have had a plugin-developer make a custom version of a plugin (Snort) for me for Eth over USB.
I am actually running 2.1.9 but it is not configured here. I installed 2.1.5 and the rest is done with updates, which work seamlessly. It has a vibrant following in Germany. I hope the project doesn't die. Kernel and other software is getting a bit long in the tooth.