That's a sensible guess; in any case I'll try to compile the UI again with 14.x, but honestly it's really not needed. I used to check it regularly but now that I run the Apollo without web GUI, I don't really miss it either.
It was also sometimes dodgy; like not saving a changed pool config. If you just SSH into the device instead, make your changes to the service file and issue a quick sudo service miner restart, such issues don't happen.