DecBC is the evolution of ZooBC. It has a different name, because it has a different scope. While ZooBC was needed to show that the backbone technology worked, we needed to put some tangible proof-of-participation (PoP) consensus work in place so people could see what it was all about.
DecBC helps fill this void by bringing all those new and needed functionalities to this technology to make it fully fungible. Because while it looks like just a normal blockchain, there are a lot of hidden gems that are not visible in the user interface (UI), some are not fully coded, but with DecBC, we can bring these gems to the surface. Learn more about decBC here