Apple drops discoveryd in latest OS X beta following months of network issues

People on Macrumors immediately saw stable WiFi connects and near-instantenous WiFi re-establishment speeds on laptop wakeup.

I wonder what led Apple to develop discoveryd in the first place. With such a project, it seems like there were some important issues to solve with mDNSResponder. Or is it just a mess of a code, peforming well but hard to maintain? Who knows. Maybe discoveryd isn't even dead yet, just in quarantine while they fix it...?

wonder if that explains some of the absolute cf's I have been having with my osx server randomly changing the diradmin password and the final straw losing my networked home directory I have given up and am switching to i5 windows 8 and buy new proper workstation class pc's in preference to the shoddy apple kit

mDNSResponder is written in C and discoveryd is written in C++. I wonder if trying to "object-orient" what mDNSResponder did caused some problems.