The new system is an online judging software created by us after many years of patching the old system. This new system would not have the errors the former had (although it will have many new errors ).What is the new system?
User level, the judging basis would be the same. You submit a code, the system judges it and tell you whether you solved it or not. You'll have many new options (not only choosing language but compiler, possibility of manually rejudge submission, access to your codes...)
Statistical level, there will be many changes, but they'll be shown after a few weeks (once everything else works).
I hope you enjoy it, it took us many years of development