 After many years of disagreements between Howard and Nickerson regarding the direction and pace of the software development, Howard began developing HylaFAX at SourceForge.net in October 2005.That work later became known as HylaFAX+.Version numbers initially added another "dot" (like "4.3.0.11") and then simply changed outright to "5.0.0", "5.0.1", and so forth.