"Situation: School firewalled every port, in going and out going"
You're going to need to talk to your school IT administrator (or equivalent) and see if they will allow you to DCC. If they've restricted access it's probably for the best (DCC would be an easy way to get a virus which can cause huge inconveniences for networks). If they refuse to help you, then we don't help evade school/work/college/etc policies.
As for recent changes, as confirmation, a bug was fixed with DCC gets and HTTP proxies: 73.Fixed dcc get via http proxy/socks bug.
Regards,
